/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.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 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 22:53:36,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:53:36,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:53:36,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:53:36,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:53:36,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:53:36,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:53:36,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:53:36,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:53:36,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:53:36,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:53:36,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:53:36,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:53:36,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:53:36,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:53:36,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:53:36,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:53:36,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:53:36,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:53:36,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:53:36,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:53:36,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:53:36,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:53:36,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:53:36,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:53:36,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:53:36,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:53:36,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:53:36,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:53:36,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:53:36,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:53:36,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:53:36,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:53:36,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:53:36,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:53:36,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:53:36,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:53:36,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:53:36,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:53:36,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:53:36,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:53:36,500 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 [2020-07-19 22:53:36,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:53:36,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:53:36,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:53:36,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:53:36,517 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:53:36,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:53:36,517 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:53:36,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:53:36,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:53:36,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:53:36,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:53:36,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:53:36,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:53:36,519 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:53:36,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:53:36,519 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:53:36,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:53:36,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:53:36,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:53:36,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:53:36,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:53:36,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:53:36,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:53:36,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:53:36,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:53:36,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:53:36,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:53:36,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:53:36,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:53:36,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 22:53:36,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:53:36,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:53:36,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:53:36,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:53:36,806 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:53:36,807 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-07-19 22:53:36,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161fce028/69f3eff5091840ed9b319acf7ca3ae40/FLAGa3594a5d7 [2020-07-19 22:53:37,440 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:53:37,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-07-19 22:53:37,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161fce028/69f3eff5091840ed9b319acf7ca3ae40/FLAGa3594a5d7 [2020-07-19 22:53:37,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161fce028/69f3eff5091840ed9b319acf7ca3ae40 [2020-07-19 22:53:37,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:53:37,724 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:53:37,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:53:37,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:53:37,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:53:37,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:53:37" (1/1) ... [2020-07-19 22:53:37,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd60f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:37, skipping insertion in model container [2020-07-19 22:53:37,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:53:37" (1/1) ... [2020-07-19 22:53:37,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:53:37,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:53:38,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:53:38,231 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:53:38,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:53:38,416 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:53:38,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38 WrapperNode [2020-07-19 22:53:38,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:53:38,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:53:38,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:53:38,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:53:38,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (1/1) ... [2020-07-19 22:53:38,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (1/1) ... [2020-07-19 22:53:38,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (1/1) ... [2020-07-19 22:53:38,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (1/1) ... [2020-07-19 22:53:38,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (1/1) ... [2020-07-19 22:53:38,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (1/1) ... [2020-07-19 22:53:38,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (1/1) ... [2020-07-19 22:53:38,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:53:38,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:53:38,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:53:38,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:53:38,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (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 [2020-07-19 22:53:38,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:53:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:53:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:53:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-19 22:53:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:53:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:53:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:53:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:53:38,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:53:38,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:53:38,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:53:38,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:53:38,591 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:53:38,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:53:38,592 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:53:38,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:53:38,592 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:53:38,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:53:38,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 22:53:38,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:53:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-19 22:53:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:53:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:53:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:53:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:53:38,593 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:53:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 22:53:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 22:53:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 22:53:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:53:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:53:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:53:38,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:53:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:53:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:53:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 22:53:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:53:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:53:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:53:38,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:53:38,596 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:53:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:53:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:53:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:53:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:53:38,596 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:53:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:53:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-19 22:53:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:53:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:53:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:53:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:53:38,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:53:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:53:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:53:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:53:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:53:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:53:38,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:53:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:53:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:53:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:53:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:53:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:53:38,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:53:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:53:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:53:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:53:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:53:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:53:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:53:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:53:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:53:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:53:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:53:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:53:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:53:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 22:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 22:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 22:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 22:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 22:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:53:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-19 22:53:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:53:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:53:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:53:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:53:39,654 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:53:39,654 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:53:39,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:53:39 BoogieIcfgContainer [2020-07-19 22:53:39,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:53:39,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:53:39,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:53:39,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:53:39,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:53:37" (1/3) ... [2020-07-19 22:53:39,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de34605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:53:39, skipping insertion in model container [2020-07-19 22:53:39,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:38" (2/3) ... [2020-07-19 22:53:39,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de34605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:53:39, skipping insertion in model container [2020-07-19 22:53:39,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:53:39" (3/3) ... [2020-07-19 22:53:39,668 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-07-19 22:53:39,679 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:53:39,687 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:53:39,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:53:39,726 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:53:39,727 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:53:39,727 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:53:39,727 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:53:39,727 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:53:39,728 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:53:39,728 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:53:39,728 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:53:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-19 22:53:39,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 22:53:39,760 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:39,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:39,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:39,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:39,766 INFO L82 PathProgramCache]: Analyzing trace with hash 267821041, now seen corresponding path program 1 times [2020-07-19 22:53:39,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:39,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103934651] [2020-07-19 22:53:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:53:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,434 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:40,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103934651] [2020-07-19 22:53:40,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:40,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:53:40,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457345881] [2020-07-19 22:53:40,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:53:40,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:40,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:53:40,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:53:40,554 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-07-19 22:53:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:41,809 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2020-07-19 22:53:41,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:53:41,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 22:53:41,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:41,827 INFO L225 Difference]: With dead ends: 332 [2020-07-19 22:53:41,827 INFO L226 Difference]: Without dead ends: 180 [2020-07-19 22:53:41,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:53:41,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-07-19 22:53:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 143. [2020-07-19 22:53:41,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-19 22:53:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2020-07-19 22:53:41,965 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 46 [2020-07-19 22:53:41,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:41,967 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2020-07-19 22:53:41,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:53:41,967 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2020-07-19 22:53:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 22:53:41,978 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:41,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:41,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:53:41,979 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:41,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:41,979 INFO L82 PathProgramCache]: Analyzing trace with hash -395653053, now seen corresponding path program 1 times [2020-07-19 22:53:41,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:41,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107966777] [2020-07-19 22:53:41,980 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:53:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,405 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:42,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107966777] [2020-07-19 22:53:42,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:42,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:53:42,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909460603] [2020-07-19 22:53:42,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:53:42,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:42,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:53:42,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:53:42,464 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 4 states. [2020-07-19 22:53:42,891 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:53:43,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:43,753 INFO L93 Difference]: Finished difference Result 255 states and 310 transitions. [2020-07-19 22:53:43,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:53:43,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 22:53:43,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:43,765 INFO L225 Difference]: With dead ends: 255 [2020-07-19 22:53:43,765 INFO L226 Difference]: Without dead ends: 164 [2020-07-19 22:53:43,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 22:53:43,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-07-19 22:53:43,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 134. [2020-07-19 22:53:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-19 22:53:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2020-07-19 22:53:43,846 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 47 [2020-07-19 22:53:43,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:43,848 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2020-07-19 22:53:43,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:53:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2020-07-19 22:53:43,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 22:53:43,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:43,854 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] [2020-07-19 22:53:43,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:53:43,854 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:43,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:43,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1814461049, now seen corresponding path program 1 times [2020-07-19 22:53:43,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:43,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045372250] [2020-07-19 22:53:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:53:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,236 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:44,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045372250] [2020-07-19 22:53:44,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:44,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:53:44,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896268839] [2020-07-19 22:53:44,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:53:44,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:44,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:53:44,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:53:44,300 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 8 states. [2020-07-19 22:53:44,683 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:45,003 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:45,235 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:45,449 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:46,161 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:53:48,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:48,015 INFO L93 Difference]: Finished difference Result 461 states and 569 transitions. [2020-07-19 22:53:48,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:53:48,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-19 22:53:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:48,028 INFO L225 Difference]: With dead ends: 461 [2020-07-19 22:53:48,028 INFO L226 Difference]: Without dead ends: 351 [2020-07-19 22:53:48,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 22:53:48,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-07-19 22:53:48,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 282. [2020-07-19 22:53:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-07-19 22:53:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 340 transitions. [2020-07-19 22:53:48,119 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 340 transitions. Word has length 52 [2020-07-19 22:53:48,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:48,120 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 340 transitions. [2020-07-19 22:53:48,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:53:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 340 transitions. [2020-07-19 22:53:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 22:53:48,121 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:48,122 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] [2020-07-19 22:53:48,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:53:48,122 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:48,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1060505325, now seen corresponding path program 1 times [2020-07-19 22:53:48,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:48,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936889974] [2020-07-19 22:53:48,123 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:53:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,435 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:48,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:48,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936889974] [2020-07-19 22:53:48,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:48,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 22:53:48,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736098581] [2020-07-19 22:53:48,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 22:53:48,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:48,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 22:53:48,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:53:48,544 INFO L87 Difference]: Start difference. First operand 282 states and 340 transitions. Second operand 12 states. [2020-07-19 22:53:48,979 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:49,269 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:49,538 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:49,756 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:50,294 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:53:51,007 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:51,376 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:51,679 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:51,954 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:52,291 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:52,718 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:53,021 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:53,262 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:55,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:55,069 INFO L93 Difference]: Finished difference Result 1153 states and 1576 transitions. [2020-07-19 22:53:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 22:53:55,071 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-07-19 22:53:55,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:55,078 INFO L225 Difference]: With dead ends: 1153 [2020-07-19 22:53:55,078 INFO L226 Difference]: Without dead ends: 895 [2020-07-19 22:53:55,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-19 22:53:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-07-19 22:53:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 794. [2020-07-19 22:53:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2020-07-19 22:53:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1006 transitions. [2020-07-19 22:53:55,267 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1006 transitions. Word has length 57 [2020-07-19 22:53:55,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:55,268 INFO L479 AbstractCegarLoop]: Abstraction has 794 states and 1006 transitions. [2020-07-19 22:53:55,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 22:53:55,268 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1006 transitions. [2020-07-19 22:53:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-19 22:53:55,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:55,271 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] [2020-07-19 22:53:55,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:53:55,272 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:55,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:55,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1254258393, now seen corresponding path program 1 times [2020-07-19 22:53:55,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:55,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803821667] [2020-07-19 22:53:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:53:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,531 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:55,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803821667] [2020-07-19 22:53:55,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:55,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 22:53:55,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299982706] [2020-07-19 22:53:55,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:53:55,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:55,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:53:55,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 22:53:55,602 INFO L87 Difference]: Start difference. First operand 794 states and 1006 transitions. Second operand 6 states. [2020-07-19 22:53:55,976 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:57,831 INFO L93 Difference]: Finished difference Result 1951 states and 2621 transitions. [2020-07-19 22:53:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 22:53:57,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-19 22:53:57,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:57,841 INFO L225 Difference]: With dead ends: 1951 [2020-07-19 22:53:57,841 INFO L226 Difference]: Without dead ends: 1181 [2020-07-19 22:53:57,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:53:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2020-07-19 22:53:58,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1090. [2020-07-19 22:53:58,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-07-19 22:53:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1352 transitions. [2020-07-19 22:53:58,074 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1352 transitions. Word has length 61 [2020-07-19 22:53:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:58,075 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1352 transitions. [2020-07-19 22:53:58,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:53:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1352 transitions. [2020-07-19 22:53:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-19 22:53:58,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:58,079 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 22:53:58,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:53:58,079 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:58,080 INFO L82 PathProgramCache]: Analyzing trace with hash 909865268, now seen corresponding path program 1 times [2020-07-19 22:53:58,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:58,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734520894] [2020-07-19 22:53:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:53:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,423 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 22:53:58,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734520894] [2020-07-19 22:53:58,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054477911] [2020-07-19 22:53:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6601fcd3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:58,948 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6601fcd3 issued 4 check-sat command(s) [2020-07-19 22:53:58,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:58,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-19 22:53:58,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 22:53:59,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 22:53:59,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2020-07-19 22:53:59,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285602900] [2020-07-19 22:53:59,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 22:53:59,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:59,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 22:53:59,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:53:59,068 INFO L87 Difference]: Start difference. First operand 1090 states and 1352 transitions. Second operand 12 states. [2020-07-19 22:53:59,787 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-19 22:54:00,361 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:54:02,530 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:54:02,896 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:54:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:54:05,997 INFO L93 Difference]: Finished difference Result 2862 states and 3843 transitions. [2020-07-19 22:54:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-19 22:54:06,001 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-07-19 22:54:06,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:54:06,019 INFO L225 Difference]: With dead ends: 2862 [2020-07-19 22:54:06,020 INFO L226 Difference]: Without dead ends: 2081 [2020-07-19 22:54:06,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2020-07-19 22:54:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2020-07-19 22:54:06,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1899. [2020-07-19 22:54:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1899 states. [2020-07-19 22:54:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2389 transitions. [2020-07-19 22:54:06,491 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2389 transitions. Word has length 89 [2020-07-19 22:54:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:54:06,494 INFO L479 AbstractCegarLoop]: Abstraction has 1899 states and 2389 transitions. [2020-07-19 22:54:06,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 22:54:06,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2389 transitions. [2020-07-19 22:54:06,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-19 22:54:06,501 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:54:06,501 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:54:06,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-19 22:54:06,717 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:54:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:54:06,718 INFO L82 PathProgramCache]: Analyzing trace with hash -920784732, now seen corresponding path program 1 times [2020-07-19 22:54:06,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:54:06,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837749324] [2020-07-19 22:54:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:54:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,092 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:54:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-19 22:54:07,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837749324] [2020-07-19 22:54:07,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548757645] [2020-07-19 22:54:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3fb20038 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:54:07,728 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3fb20038 issued 3 check-sat command(s) [2020-07-19 22:54:07,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:54:07,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:54:07,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:54:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-19 22:54:07,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:54:07,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-19 22:54:07,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090952946] [2020-07-19 22:54:07,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:54:07,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:54:07,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:54:07,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-19 22:54:07,804 INFO L87 Difference]: Start difference. First operand 1899 states and 2389 transitions. Second operand 6 states. [2020-07-19 22:54:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:54:08,150 INFO L93 Difference]: Finished difference Result 3830 states and 5064 transitions. [2020-07-19 22:54:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 22:54:08,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-19 22:54:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:54:08,163 INFO L225 Difference]: With dead ends: 3830 [2020-07-19 22:54:08,163 INFO L226 Difference]: Without dead ends: 1955 [2020-07-19 22:54:08,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:54:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2020-07-19 22:54:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1939. [2020-07-19 22:54:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1939 states. [2020-07-19 22:54:08,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2437 transitions. [2020-07-19 22:54:08,606 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2437 transitions. Word has length 143 [2020-07-19 22:54:08,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:54:08,607 INFO L479 AbstractCegarLoop]: Abstraction has 1939 states and 2437 transitions. [2020-07-19 22:54:08,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:54:08,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2437 transitions. [2020-07-19 22:54:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-19 22:54:08,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:54:08,612 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:54:08,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:54:08,827 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:54:08,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:54:08,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1804293722, now seen corresponding path program 1 times [2020-07-19 22:54:08,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:54:08,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124101823] [2020-07-19 22:54:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:54:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,153 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:54:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:09,367 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-19 22:54:09,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124101823] [2020-07-19 22:54:09,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859824045] [2020-07-19 22:54:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c8c5274 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:54:09,956 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c8c5274 issued 3 check-sat command(s) [2020-07-19 22:54:09,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:54:09,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 22:54:09,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:54:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-19 22:54:10,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:54:10,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-07-19 22:54:10,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780794586] [2020-07-19 22:54:10,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 22:54:10,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:54:10,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 22:54:10,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:54:10,058 INFO L87 Difference]: Start difference. First operand 1939 states and 2437 transitions. Second operand 5 states. [2020-07-19 22:54:10,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:54:10,469 INFO L93 Difference]: Finished difference Result 3468 states and 4460 transitions. [2020-07-19 22:54:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:54:10,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-07-19 22:54:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:54:10,482 INFO L225 Difference]: With dead ends: 3468 [2020-07-19 22:54:10,482 INFO L226 Difference]: Without dead ends: 1553 [2020-07-19 22:54:10,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:54:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2020-07-19 22:54:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1553. [2020-07-19 22:54:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1553 states. [2020-07-19 22:54:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 1927 transitions. [2020-07-19 22:54:10,817 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 1927 transitions. Word has length 143 [2020-07-19 22:54:10,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:54:10,817 INFO L479 AbstractCegarLoop]: Abstraction has 1553 states and 1927 transitions. [2020-07-19 22:54:10,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 22:54:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 1927 transitions. [2020-07-19 22:54:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-19 22:54:10,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:54:10,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:54:11,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:54:11,039 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:54:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:54:11,040 INFO L82 PathProgramCache]: Analyzing trace with hash -401491891, now seen corresponding path program 1 times [2020-07-19 22:54:11,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:54:11,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394975943] [2020-07-19 22:54:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:54:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,354 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:54:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-19 22:54:11,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394975943] [2020-07-19 22:54:11,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594074616] [2020-07-19 22:54:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@601a85ca No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:54:11,970 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@601a85ca issued 4 check-sat command(s) [2020-07-19 22:54:11,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:54:11,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:54:11,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:54:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:54:12,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 22:54:12,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2020-07-19 22:54:12,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241342676] [2020-07-19 22:54:12,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-19 22:54:12,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:54:12,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-19 22:54:12,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-07-19 22:54:12,163 INFO L87 Difference]: Start difference. First operand 1553 states and 1927 transitions. Second operand 20 states. [2020-07-19 22:54:12,860 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:54:13,745 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:54:14,086 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:54:14,700 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:54:15,220 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:15,639 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:16,002 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:16,281 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:16,820 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-19 22:54:17,142 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:17,453 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:17,705 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:17,992 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:18,563 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-07-19 22:54:18,965 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-19 22:54:19,283 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-19 22:54:20,439 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:20,861 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:21,166 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:21,427 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:21,816 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:22,076 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:23,237 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:23,505 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:23,755 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:23,993 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:24,251 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:24,552 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:24,794 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:25,029 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:25,304 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:25,542 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:54:26,520 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:54:26,830 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:54:27,102 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:54:27,443 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:54:27,695 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:54:27,960 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:54:28,264 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:54:28,547 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:54:28,810 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:54:29,049 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:54:29,334 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:54:29,613 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:54:32,111 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:54:32,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:54:32,729 INFO L93 Difference]: Finished difference Result 4811 states and 6601 transitions. [2020-07-19 22:54:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-07-19 22:54:32,730 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 147 [2020-07-19 22:54:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:54:32,751 INFO L225 Difference]: With dead ends: 4811 [2020-07-19 22:54:32,751 INFO L226 Difference]: Without dead ends: 3282 [2020-07-19 22:54:32,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3594 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1536, Invalid=8564, Unknown=0, NotChecked=0, Total=10100 [2020-07-19 22:54:32,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2020-07-19 22:54:33,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 2521. [2020-07-19 22:54:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2020-07-19 22:54:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3066 transitions. [2020-07-19 22:54:33,287 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3066 transitions. Word has length 147 [2020-07-19 22:54:33,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:54:33,288 INFO L479 AbstractCegarLoop]: Abstraction has 2521 states and 3066 transitions. [2020-07-19 22:54:33,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-19 22:54:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3066 transitions. [2020-07-19 22:54:33,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-19 22:54:33,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:54:33,298 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:54:33,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:54:33,512 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:54:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:54:33,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1251841122, now seen corresponding path program 1 times [2020-07-19 22:54:33,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:54:33,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015363767] [2020-07-19 22:54:33,515 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:54:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:33,942 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:54:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:54:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-07-19 22:54:34,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015363767] [2020-07-19 22:54:34,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268225614] [2020-07-19 22:54:34,127 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bf27e1e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:54:34,546 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bf27e1e issued 4 check-sat command(s) [2020-07-19 22:54:34,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:54:34,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:54:34,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:54:34,629 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-07-19 22:54:34,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:54:34,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2020-07-19 22:54:34,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017072107] [2020-07-19 22:54:34,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:54:34,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:54:34,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:54:34,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:54:34,631 INFO L87 Difference]: Start difference. First operand 2521 states and 3066 transitions. Second operand 6 states. [2020-07-19 22:54:35,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:54:35,119 INFO L93 Difference]: Finished difference Result 2552 states and 3098 transitions. [2020-07-19 22:54:35,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 22:54:35,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2020-07-19 22:54:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:54:35,135 INFO L225 Difference]: With dead ends: 2552 [2020-07-19 22:54:35,135 INFO L226 Difference]: Without dead ends: 2549 [2020-07-19 22:54:35,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:54:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2020-07-19 22:54:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2521. [2020-07-19 22:54:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2020-07-19 22:54:35,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3056 transitions. [2020-07-19 22:54:35,752 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3056 transitions. Word has length 203 [2020-07-19 22:54:35,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:54:35,753 INFO L479 AbstractCegarLoop]: Abstraction has 2521 states and 3056 transitions. [2020-07-19 22:54:35,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:54:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3056 transitions. [2020-07-19 22:54:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-19 22:54:35,766 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:54:35,766 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-19 22:54:35,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 22:54:35,982 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:54:35,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:54:35,982 INFO L82 PathProgramCache]: Analyzing trace with hash 402231489, now seen corresponding path program 1 times [2020-07-19 22:54:35,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:54:35,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984285069] [2020-07-19 22:54:35,983 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43dde21e [2020-07-19 22:54:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:54:36,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:54:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:54:36,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:54:36,372 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:54:36,372 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:54:36,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-19 22:54:36,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:54:36 BoogieIcfgContainer [2020-07-19 22:54:36,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:54:36,616 INFO L168 Benchmark]: Toolchain (without parser) took 58893.59 ms. Allocated memory was 138.9 MB in the beginning and 1.1 GB in the end (delta: 926.9 MB). Free memory was 102.7 MB in the beginning and 686.6 MB in the end (delta: -583.9 MB). Peak memory consumption was 343.0 MB. Max. memory is 7.1 GB. [2020-07-19 22:54:36,619 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 22:54:36,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.90 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.5 MB in the beginning and 170.5 MB in the end (delta: -68.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-07-19 22:54:36,625 INFO L168 Benchmark]: Boogie Preprocessor took 91.75 ms. Allocated memory is still 203.9 MB. Free memory was 170.5 MB in the beginning and 165.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-19 22:54:36,628 INFO L168 Benchmark]: RCFGBuilder took 1150.32 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.9 MB in the beginning and 192.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-07-19 22:54:36,629 INFO L168 Benchmark]: TraceAbstraction took 56952.51 ms. Allocated memory was 237.0 MB in the beginning and 1.1 GB in the end (delta: 828.9 MB). Free memory was 192.2 MB in the beginning and 686.6 MB in the end (delta: -494.4 MB). Peak memory consumption was 334.5 MB. Max. memory is 7.1 GB. [2020-07-19 22:54:36,634 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.90 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.5 MB in the beginning and 170.5 MB in the end (delta: -68.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.75 ms. Allocated memory is still 203.9 MB. Free memory was 170.5 MB in the beginning and 165.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1150.32 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 165.9 MB in the beginning and 192.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 56952.51 ms. Allocated memory was 237.0 MB in the beginning and 1.1 GB in the end (delta: 828.9 MB). Free memory was 192.2 MB in the beginning and 686.6 MB in the end (delta: -494.4 MB). Peak memory consumption was 334.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int retValue_acc ; [L526] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L532] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L536] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L537] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L890] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE waterLevel < 2 [L793] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L890] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L636] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] COND FALSE !(waterLevel < 2) [L861] retValue_acc = 0 [L862] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L738] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L597] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L601] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L655] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L661] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L601] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L636] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L578] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L925] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L880] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L623] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L631] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L610] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L631] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L578] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L925] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L565] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L621] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L623] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L631] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L595] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L610] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L631] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L439] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 56.6s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 43.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1662 SDtfs, 4448 SDslu, 3114 SDs, 0 SdLazy, 11366 SolverSat, 3645 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1291 GetRequests, 1072 SyntacticMatches, 3 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4064 ImplicationChecksByTransitivity, 21.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2521occurred 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: 3.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 1315 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1916 NumberOfCodeBlocks, 1846 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1698 ConstructedInterpolants, 0 QuantifiedInterpolants, 526488 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4279 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 440/474 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...