/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:01:51,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:01:51,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:01:51,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:01:51,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:01:51,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:01:51,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:01:51,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:01:51,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:01:51,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:01:51,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:01:51,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:01:51,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:01:51,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:01:51,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:01:51,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:01:51,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:01:51,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:01:51,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:01:51,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:01:51,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:01:51,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:01:51,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:01:51,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:01:51,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:01:51,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:01:51,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:01:51,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:01:51,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:01:51,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:01:51,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:01:51,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:01:51,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:01:51,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:01:51,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:01:51,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:01:51,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:01:51,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:01:51,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:01:51,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:01:51,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:01:51,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 13:01:51,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:01:51,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:01:51,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:01:51,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:01:51,413 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:01:51,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:01:51,413 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:01:51,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:01:51,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:01:51,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:01:51,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:01:51,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:01:51,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:01:51,414 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:01:51,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:01:51,415 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:01:51,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:01:51,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:01:51,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:01:51,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:01:51,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:01:51,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:01:51,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:01:51,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:01:51,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:01:51,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:01:51,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:51,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:01:51,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:01:51,418 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 13:01:51,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:01:51,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:01:51,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:01:51,704 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:01:51,704 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:01:51,705 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-07-20 13:01:51,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbc3c4c2d/8de001b2f62c43c3b6f83248899818fd/FLAG119f3e631 [2020-07-20 13:01:52,237 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:01:52,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-07-20 13:01:52,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbc3c4c2d/8de001b2f62c43c3b6f83248899818fd/FLAG119f3e631 [2020-07-20 13:01:52,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbc3c4c2d/8de001b2f62c43c3b6f83248899818fd [2020-07-20 13:01:52,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:01:52,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:01:52,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:52,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:01:52,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:01:52,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:52" (1/1) ... [2020-07-20 13:01:52,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2977479a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:52, skipping insertion in model container [2020-07-20 13:01:52,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:52" (1/1) ... [2020-07-20 13:01:52,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:01:52,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:01:53,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:53,181 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:01:53,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:53,326 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:01:53,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53 WrapperNode [2020-07-20 13:01:53,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:53,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:01:53,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:01:53,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:01:53,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... [2020-07-20 13:01:53,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... [2020-07-20 13:01:53,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... [2020-07-20 13:01:53,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... [2020-07-20 13:01:53,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... [2020-07-20 13:01:53,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... [2020-07-20 13:01:53,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... [2020-07-20 13:01:53,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:01:53,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:01:53,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:01:53,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:01:53,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-20 13:01:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:01:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:01:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:01:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:01:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:01:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:01:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:01:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 13:01:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:01:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:01:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:01:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:01:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:01:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:01:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:01:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 13:01:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:01:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:01:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:01:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:01:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:01:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:01:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:01:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:01:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:01:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:01:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:01:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:01:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:01:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:01:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:01:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:01:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:01:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:01:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:01:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:01:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:01:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:01:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:01:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:01:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:01:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:01:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:01:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 13:01:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:01:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:01:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:01:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:01:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:01:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:01:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:01:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:01:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:01:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:01:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:01:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:01:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:01:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:01:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:01:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:01:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 13:01:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:01:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:01:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:01:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:01:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:01:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:01:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:01:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:01:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:01:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:01:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:01:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:01:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:01:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:01:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:01:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:01:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:01:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:01:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:01:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:01:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:53,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:01:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:01:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:01:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:01:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:01:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:01:53,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:01:54,666 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:01:54,666 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:01:54,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:54 BoogieIcfgContainer [2020-07-20 13:01:54,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:01:54,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:01:54,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:01:54,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:01:54,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:01:52" (1/3) ... [2020-07-20 13:01:54,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b562e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:54, skipping insertion in model container [2020-07-20 13:01:54,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:53" (2/3) ... [2020-07-20 13:01:54,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b562e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:54, skipping insertion in model container [2020-07-20 13:01:54,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:54" (3/3) ... [2020-07-20 13:01:54,679 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-07-20 13:01:54,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:01:54,697 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:01:54,711 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:01:54,735 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:01:54,735 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:01:54,736 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:01:54,736 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:01:54,736 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:01:54,736 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:01:54,737 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:01:54,737 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:01:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-07-20 13:01:54,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:01:54,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:54,768 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] [2020-07-20 13:01:54,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:54,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:54,775 INFO L82 PathProgramCache]: Analyzing trace with hash 925001116, now seen corresponding path program 1 times [2020-07-20 13:01:54,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:54,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319774087] [2020-07-20 13:01:54,784 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:55,289 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:55,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:55,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:01:55,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:55,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:55,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319774087] [2020-07-20 13:01:55,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:55,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:01:55,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901808434] [2020-07-20 13:01:55,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:01:55,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:55,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:01:55,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:55,358 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 2 states. [2020-07-20 13:01:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:55,397 INFO L93 Difference]: Finished difference Result 266 states and 327 transitions. [2020-07-20 13:01:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:01:55,399 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-20 13:01:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:55,411 INFO L225 Difference]: With dead ends: 266 [2020-07-20 13:01:55,411 INFO L226 Difference]: Without dead ends: 135 [2020-07-20 13:01:55,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:55,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-07-20 13:01:55,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2020-07-20 13:01:55,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-07-20 13:01:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2020-07-20 13:01:55,469 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 51 [2020-07-20 13:01:55,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:55,470 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2020-07-20 13:01:55,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:01:55,470 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2020-07-20 13:01:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:01:55,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:55,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:55,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:55,688 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:55,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:55,689 INFO L82 PathProgramCache]: Analyzing trace with hash -214077655, now seen corresponding path program 1 times [2020-07-20 13:01:55,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:55,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678918617] [2020-07-20 13:01:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:56,093 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:56,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:56,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:01:56,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:56,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:56,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678918617] [2020-07-20 13:01:56,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:56,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:56,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258795305] [2020-07-20 13:01:56,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:56,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:56,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:56,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:56,143 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand 3 states. [2020-07-20 13:01:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:56,167 INFO L93 Difference]: Finished difference Result 202 states and 235 transitions. [2020-07-20 13:01:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:56,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 13:01:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:56,172 INFO L225 Difference]: With dead ends: 202 [2020-07-20 13:01:56,172 INFO L226 Difference]: Without dead ends: 126 [2020-07-20 13:01:56,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:56,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-20 13:01:56,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-20 13:01:56,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-20 13:01:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2020-07-20 13:01:56,199 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 52 [2020-07-20 13:01:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:56,199 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2020-07-20 13:01:56,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2020-07-20 13:01:56,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 13:01:56,204 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:56,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:56,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:56,420 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:56,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:56,421 INFO L82 PathProgramCache]: Analyzing trace with hash 784654360, now seen corresponding path program 1 times [2020-07-20 13:01:56,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:56,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303867023] [2020-07-20 13:01:56,422 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:56,819 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:56,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:56,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:01:56,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:56,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:56,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303867023] [2020-07-20 13:01:56,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:56,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:56,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206672645] [2020-07-20 13:01:56,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:56,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:56,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:56,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:56,861 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand 3 states. [2020-07-20 13:01:56,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:56,890 INFO L93 Difference]: Finished difference Result 318 states and 378 transitions. [2020-07-20 13:01:56,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:56,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-20 13:01:56,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:56,894 INFO L225 Difference]: With dead ends: 318 [2020-07-20 13:01:56,894 INFO L226 Difference]: Without dead ends: 220 [2020-07-20 13:01:56,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:56,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-20 13:01:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 208. [2020-07-20 13:01:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-07-20 13:01:56,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 245 transitions. [2020-07-20 13:01:56,922 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 245 transitions. Word has length 57 [2020-07-20 13:01:56,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:56,923 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 245 transitions. [2020-07-20 13:01:56,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:56,923 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 245 transitions. [2020-07-20 13:01:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 13:01:56,926 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:56,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:57,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:57,141 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:57,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:57,143 INFO L82 PathProgramCache]: Analyzing trace with hash 402514829, now seen corresponding path program 1 times [2020-07-20 13:01:57,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:57,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845915858] [2020-07-20 13:01:57,144 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:57,655 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:57,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:57,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:57,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:57,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:57,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845915858] [2020-07-20 13:01:57,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:57,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:57,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006749134] [2020-07-20 13:01:57,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:57,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:57,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:57,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:57,705 INFO L87 Difference]: Start difference. First operand 208 states and 245 transitions. Second operand 6 states. [2020-07-20 13:01:57,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:57,927 INFO L93 Difference]: Finished difference Result 496 states and 608 transitions. [2020-07-20 13:01:57,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:57,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-20 13:01:57,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:57,932 INFO L225 Difference]: With dead ends: 496 [2020-07-20 13:01:57,932 INFO L226 Difference]: Without dead ends: 316 [2020-07-20 13:01:57,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:57,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-07-20 13:01:57,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 308. [2020-07-20 13:01:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-20 13:01:57,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 367 transitions. [2020-07-20 13:01:57,967 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 367 transitions. Word has length 62 [2020-07-20 13:01:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:57,967 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 367 transitions. [2020-07-20 13:01:57,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:57,968 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 367 transitions. [2020-07-20 13:01:57,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-20 13:01:57,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:57,972 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:58,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:58,183 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:58,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:58,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1927913333, now seen corresponding path program 1 times [2020-07-20 13:01:58,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:58,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002443113] [2020-07-20 13:01:58,185 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:58,519 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:58,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:58,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:01:58,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:58,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:58,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002443113] [2020-07-20 13:01:58,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:58,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:58,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77343955] [2020-07-20 13:01:58,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:58,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:58,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:58,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:58,578 INFO L87 Difference]: Start difference. First operand 308 states and 367 transitions. Second operand 3 states. [2020-07-20 13:01:58,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:58,643 INFO L93 Difference]: Finished difference Result 860 states and 1091 transitions. [2020-07-20 13:01:58,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:58,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-20 13:01:58,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:58,656 INFO L225 Difference]: With dead ends: 860 [2020-07-20 13:01:58,656 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 13:01:58,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:58,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 13:01:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 577. [2020-07-20 13:01:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-07-20 13:01:58,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 716 transitions. [2020-07-20 13:01:58,708 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 716 transitions. Word has length 95 [2020-07-20 13:01:58,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:58,709 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 716 transitions. [2020-07-20 13:01:58,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:58,709 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 716 transitions. [2020-07-20 13:01:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-07-20 13:01:58,714 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:58,715 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:58,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:58,930 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:58,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:58,931 INFO L82 PathProgramCache]: Analyzing trace with hash 729918396, now seen corresponding path program 1 times [2020-07-20 13:01:58,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:58,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849427679] [2020-07-20 13:01:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:59,210 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:59,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:59,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 13:01:59,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:01:59,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:59,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849427679] [2020-07-20 13:01:59,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:59,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:59,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680288001] [2020-07-20 13:01:59,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:59,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:59,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:59,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:59,288 INFO L87 Difference]: Start difference. First operand 577 states and 716 transitions. Second operand 6 states. [2020-07-20 13:02:00,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:00,367 INFO L93 Difference]: Finished difference Result 1882 states and 2525 transitions. [2020-07-20 13:02:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 13:02:00,368 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2020-07-20 13:02:00,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:00,378 INFO L225 Difference]: With dead ends: 1882 [2020-07-20 13:02:00,378 INFO L226 Difference]: Without dead ends: 1333 [2020-07-20 13:02:00,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 13:02:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2020-07-20 13:02:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1223. [2020-07-20 13:02:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-20 13:02:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1581 transitions. [2020-07-20 13:02:00,464 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1581 transitions. Word has length 99 [2020-07-20 13:02:00,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:00,464 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1581 transitions. [2020-07-20 13:02:00,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1581 transitions. [2020-07-20 13:02:00,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-20 13:02:00,467 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:00,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:00,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:00,682 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:00,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:00,682 INFO L82 PathProgramCache]: Analyzing trace with hash 958332310, now seen corresponding path program 1 times [2020-07-20 13:02:00,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:00,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710344876] [2020-07-20 13:02:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:01,021 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:01,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:01,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:02:01,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:02:01,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:01,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710344876] [2020-07-20 13:02:01,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:01,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:02:01,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482583214] [2020-07-20 13:02:01,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:02:01,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:01,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:02:01,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:02:01,062 INFO L87 Difference]: Start difference. First operand 1223 states and 1581 transitions. Second operand 5 states. [2020-07-20 13:02:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:01,125 INFO L93 Difference]: Finished difference Result 2418 states and 3226 transitions. [2020-07-20 13:02:01,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:02:01,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2020-07-20 13:02:01,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:01,137 INFO L225 Difference]: With dead ends: 2418 [2020-07-20 13:02:01,138 INFO L226 Difference]: Without dead ends: 1223 [2020-07-20 13:02:01,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:02:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-07-20 13:02:01,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2020-07-20 13:02:01,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-20 13:02:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1577 transitions. [2020-07-20 13:02:01,216 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1577 transitions. Word has length 95 [2020-07-20 13:02:01,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:01,218 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1577 transitions. [2020-07-20 13:02:01,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:02:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1577 transitions. [2020-07-20 13:02:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-20 13:02:01,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:01,222 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:01,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:01,437 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:01,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:01,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1287247144, now seen corresponding path program 1 times [2020-07-20 13:02:01,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:01,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791116692] [2020-07-20 13:02:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:01,728 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:01,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:01,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:02:01,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:02:01,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:01,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791116692] [2020-07-20 13:02:01,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:01,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:01,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808996353] [2020-07-20 13:02:01,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:01,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:01,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:01,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:01,766 INFO L87 Difference]: Start difference. First operand 1223 states and 1577 transitions. Second operand 6 states. [2020-07-20 13:02:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:01,844 INFO L93 Difference]: Finished difference Result 2264 states and 3054 transitions. [2020-07-20 13:02:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:02:01,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-07-20 13:02:01,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:01,852 INFO L225 Difference]: With dead ends: 2264 [2020-07-20 13:02:01,852 INFO L226 Difference]: Without dead ends: 1069 [2020-07-20 13:02:01,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:02:01,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2020-07-20 13:02:01,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1065. [2020-07-20 13:02:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-07-20 13:02:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1355 transitions. [2020-07-20 13:02:01,951 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1355 transitions. Word has length 95 [2020-07-20 13:02:01,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:01,951 INFO L479 AbstractCegarLoop]: Abstraction has 1065 states and 1355 transitions. [2020-07-20 13:02:01,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:01,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1355 transitions. [2020-07-20 13:02:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-07-20 13:02:01,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:01,954 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:02,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:02,168 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:02,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1699499419, now seen corresponding path program 1 times [2020-07-20 13:02:02,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:02,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787525336] [2020-07-20 13:02:02,171 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:02,499 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:02,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:02,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 13:02:02,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 13:02:02,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:02,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787525336] [2020-07-20 13:02:02,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:02,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:02,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873410950] [2020-07-20 13:02:02,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:02,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:02,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:02,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:02,553 INFO L87 Difference]: Start difference. First operand 1065 states and 1355 transitions. Second operand 6 states. [2020-07-20 13:02:02,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:02,856 INFO L93 Difference]: Finished difference Result 3064 states and 4063 transitions. [2020-07-20 13:02:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:02:02,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2020-07-20 13:02:02,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:02,869 INFO L225 Difference]: With dead ends: 3064 [2020-07-20 13:02:02,870 INFO L226 Difference]: Without dead ends: 2027 [2020-07-20 13:02:02,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-07-20 13:02:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1995. [2020-07-20 13:02:02,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2020-07-20 13:02:02,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2544 transitions. [2020-07-20 13:02:02,991 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2544 transitions. Word has length 99 [2020-07-20 13:02:02,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:02,991 INFO L479 AbstractCegarLoop]: Abstraction has 1995 states and 2544 transitions. [2020-07-20 13:02:02,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:02,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2544 transitions. [2020-07-20 13:02:02,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-20 13:02:02,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:02,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:03,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:03,210 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:03,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:03,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1816296961, now seen corresponding path program 1 times [2020-07-20 13:02:03,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:03,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443214442] [2020-07-20 13:02:03,211 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:03,690 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:03,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:03,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 13:02:03,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:03,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:03,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443214442] [2020-07-20 13:02:03,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:03,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 13:02:03,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004483920] [2020-07-20 13:02:03,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:02:03,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:03,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:02:03,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:03,766 INFO L87 Difference]: Start difference. First operand 1995 states and 2544 transitions. Second operand 8 states. [2020-07-20 13:02:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:04,282 INFO L93 Difference]: Finished difference Result 3890 states and 4984 transitions. [2020-07-20 13:02:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:02:04,282 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-07-20 13:02:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:04,298 INFO L225 Difference]: With dead ends: 3890 [2020-07-20 13:02:04,298 INFO L226 Difference]: Without dead ends: 1923 [2020-07-20 13:02:04,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:04,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2020-07-20 13:02:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1923. [2020-07-20 13:02:04,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2020-07-20 13:02:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2402 transitions. [2020-07-20 13:02:04,432 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2402 transitions. Word has length 103 [2020-07-20 13:02:04,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:04,433 INFO L479 AbstractCegarLoop]: Abstraction has 1923 states and 2402 transitions. [2020-07-20 13:02:04,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:02:04,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2402 transitions. [2020-07-20 13:02:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-20 13:02:04,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:04,438 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:04,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:04,652 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:04,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:04,652 INFO L82 PathProgramCache]: Analyzing trace with hash -897697066, now seen corresponding path program 1 times [2020-07-20 13:02:04,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:04,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357784836] [2020-07-20 13:02:04,653 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:04,986 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:04,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:04,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:02:04,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:05,013 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 13:02:05,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:05,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357784836] [2020-07-20 13:02:05,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:05,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:05,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666887374] [2020-07-20 13:02:05,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:05,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:05,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:05,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:05,016 INFO L87 Difference]: Start difference. First operand 1923 states and 2402 transitions. Second operand 3 states. [2020-07-20 13:02:05,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:05,166 INFO L93 Difference]: Finished difference Result 3290 states and 4093 transitions. [2020-07-20 13:02:05,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:05,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-07-20 13:02:05,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:05,175 INFO L225 Difference]: With dead ends: 3290 [2020-07-20 13:02:05,175 INFO L226 Difference]: Without dead ends: 1395 [2020-07-20 13:02:05,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:05,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2020-07-20 13:02:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1353. [2020-07-20 13:02:05,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2020-07-20 13:02:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1634 transitions. [2020-07-20 13:02:05,241 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1634 transitions. Word has length 136 [2020-07-20 13:02:05,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:05,242 INFO L479 AbstractCegarLoop]: Abstraction has 1353 states and 1634 transitions. [2020-07-20 13:02:05,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1634 transitions. [2020-07-20 13:02:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 13:02:05,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:05,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:05,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:05,459 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:05,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1518550128, now seen corresponding path program 1 times [2020-07-20 13:02:05,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:05,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450926260] [2020-07-20 13:02:05,460 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:06,021 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:06,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:06,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:02:06,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:02:06,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:06,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450926260] [2020-07-20 13:02:06,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:06,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:06,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138500409] [2020-07-20 13:02:06,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:06,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:06,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:06,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:06,051 INFO L87 Difference]: Start difference. First operand 1353 states and 1634 transitions. Second operand 3 states. [2020-07-20 13:02:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:06,116 INFO L93 Difference]: Finished difference Result 2114 states and 2613 transitions. [2020-07-20 13:02:06,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:06,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-20 13:02:06,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:06,128 INFO L225 Difference]: With dead ends: 2114 [2020-07-20 13:02:06,128 INFO L226 Difference]: Without dead ends: 2111 [2020-07-20 13:02:06,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-07-20 13:02:06,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 1907. [2020-07-20 13:02:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2020-07-20 13:02:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2367 transitions. [2020-07-20 13:02:06,266 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2367 transitions. Word has length 139 [2020-07-20 13:02:06,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:06,266 INFO L479 AbstractCegarLoop]: Abstraction has 1907 states and 2367 transitions. [2020-07-20 13:02:06,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2367 transitions. [2020-07-20 13:02:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 13:02:06,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:06,272 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:06,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:06,486 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:06,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:06,486 INFO L82 PathProgramCache]: Analyzing trace with hash 464766112, now seen corresponding path program 1 times [2020-07-20 13:02:06,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:06,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856030705] [2020-07-20 13:02:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:06,873 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:06,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:02:06,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:02:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:02:06,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:02:07,356 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:02:07,357 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:02:07,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:07,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:02:07 BoogieIcfgContainer [2020-07-20 13:02:07,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:02:07,835 INFO L168 Benchmark]: Toolchain (without parser) took 15243.39 ms. Allocated memory was 139.5 MB in the beginning and 396.4 MB in the end (delta: 256.9 MB). Free memory was 102.3 MB in the beginning and 149.8 MB in the end (delta: -47.5 MB). Peak memory consumption was 209.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:07,835 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 13:02:07,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.35 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 101.9 MB in the beginning and 173.0 MB in the end (delta: -71.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:07,842 INFO L168 Benchmark]: Boogie Preprocessor took 91.02 ms. Allocated memory is still 205.5 MB. Free memory was 173.0 MB in the beginning and 168.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:07,844 INFO L168 Benchmark]: RCFGBuilder took 1248.08 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 168.9 MB in the beginning and 195.6 MB in the end (delta: -26.7 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:07,848 INFO L168 Benchmark]: TraceAbstraction took 13159.72 ms. Allocated memory was 235.9 MB in the beginning and 396.4 MB in the end (delta: 160.4 MB). Free memory was 194.2 MB in the beginning and 149.8 MB in the end (delta: 44.4 MB). Peak memory consumption was 204.9 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:07,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.35 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 101.9 MB in the beginning and 173.0 MB in the end (delta: -71.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.02 ms. Allocated memory is still 205.5 MB. Free memory was 173.0 MB in the beginning and 168.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1248.08 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 168.9 MB in the beginning and 195.6 MB in the end (delta: -26.7 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13159.72 ms. Allocated memory was 235.9 MB in the beginning and 396.4 MB in the end (delta: 160.4 MB). Free memory was 194.2 MB in the beginning and 149.8 MB in the end (delta: 44.4 MB). Peak memory consumption was 204.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L364] int cleanupTimeShifts = 4; [L462] int methAndRunningLastTime ; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L765] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=90, \old(head)=29, \old(head)=88, \old(methAndRunningLastTime)=35, \old(methaneLevelCritical)=38, \old(pumpRunning)=64, \old(systemActive)=95, \old(waterLevel)=42, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L439] int retValue_acc ; [L440] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L444] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L355] int retValue_acc ; [L358] retValue_acc = 1 [L359] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L446] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L446] tmp = valid_product() [L448] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L450] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L451] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L467] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L77] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE waterLevel < 2 [L521] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L112] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L149] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L169] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L290] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L585] COND FALSE !(waterLevel < 2) [L589] retValue_acc = 0 [L590] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L290] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L290] tmp = isHighWaterSensorDry() [L292] COND FALSE !(\read(tmp)) [L295] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L174] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] tmp = isHighWaterLevel() [L176] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L178] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L203] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L207] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L228] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L232] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] retValue_acc = isMethaneLevelCritical() [L234] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L207] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L207] tmp = isMethaneAlarm() [L209] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L213] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L213] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L178] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L149] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L472] int tmp ; [L473] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L477] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] tmp = isMethaneLevelCritical() [L479] COND FALSE !(\read(tmp)) [L495] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L155] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L112] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L65] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L67] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L87] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L532] COND FALSE !(\read(methaneLevelCritical)) [L535] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L87] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L112] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L140] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L142] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L147] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L169] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L172] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L187] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L155] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L472] int tmp ; [L473] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L477] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L481] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L481] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L484] COND FALSE !(\read(methAndRunningLastTime)) [L489] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L155] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L112] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L65] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=1] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L112] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L142] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L147] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L169] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L172] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L187] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L155] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L472] int tmp ; [L473] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L477] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L481] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L481] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L484] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L486] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L44] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 237 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.8s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2055 SDtfs, 929 SDslu, 3693 SDs, 0 SdLazy, 984 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1079 GetRequests, 1038 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1995occurred 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: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 415 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1265 NumberOfCodeBlocks, 1113 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 1071 ConstructedInterpolants, 0 QuantifiedInterpolants, 175619 SizeOfPredicates, 29 NumberOfNonLiveVariables, 9030 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 75/75 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...