/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:02:25,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:02:25,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:02:25,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:02:25,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:02:25,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:02:25,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:02:25,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:02:25,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:02:25,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:02:25,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:02:25,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:02:25,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:02:25,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:02:25,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:02:25,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:02:25,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:02:25,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:02:25,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:02:25,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:02:25,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:02:25,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:02:25,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:02:25,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:02:25,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:02:25,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:02:25,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:02:25,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:02:25,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:02:25,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:02:25,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:02:25,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:02:25,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:02:25,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:02:25,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:02:25,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:02:25,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:02:25,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:02:25,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:02:25,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:02:25,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:02:25,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 13:02:25,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:02:25,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:02:25,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:02:25,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:02:25,614 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:02:25,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:02:25,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:02:25,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:02:25,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:02:25,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:02:25,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:02:25,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:02:25,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:02:25,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:02:25,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:02:25,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:02:25,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:02:25,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:02:25,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:02:25,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:02:25,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:02:25,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:02:25,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:02:25,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:02:25,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:02:25,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:02:25,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:25,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:02:25,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:02:25,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 13:02:25,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:02:25,942 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:02:25,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:02:25,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:02:25,947 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:02:25,948 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-07-20 13:02:26,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c751e2399/9a963f6270354612bf771a8bfbdde7e3/FLAG6c4013a73 [2020-07-20 13:02:26,482 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:02:26,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-07-20 13:02:26,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c751e2399/9a963f6270354612bf771a8bfbdde7e3/FLAG6c4013a73 [2020-07-20 13:02:26,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c751e2399/9a963f6270354612bf771a8bfbdde7e3 [2020-07-20 13:02:26,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:02:26,862 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:02:26,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:26,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:02:26,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:02:26,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:26" (1/1) ... [2020-07-20 13:02:26,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6960a08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:26, skipping insertion in model container [2020-07-20 13:02:26,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:26" (1/1) ... [2020-07-20 13:02:26,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:02:26,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:02:27,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:27,394 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:02:27,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:27,537 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:02:27,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27 WrapperNode [2020-07-20 13:02:27,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:27,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:02:27,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:02:27,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:02:27,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... [2020-07-20 13:02:27,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... [2020-07-20 13:02:27,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... [2020-07-20 13:02:27,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... [2020-07-20 13:02:27,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... [2020-07-20 13:02:27,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... [2020-07-20 13:02:27,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... [2020-07-20 13:02:27,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:02:27,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:02:27,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:02:27,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:02:27,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:02:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:02:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:02:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:02:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:02:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:02:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:02:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:02:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:02:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:02:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:02:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:02:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:02:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:02:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:02:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:02:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 13:02:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:02:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:02:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:02:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:02:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:02:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:02:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:02:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:02:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:02:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:02:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:02:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:02:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:02:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:02:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:02:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:02:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:02:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:02:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:02:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:02:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:02:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:02:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:02:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:02:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:02:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:02:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:02:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:02:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:02:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:02:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:02:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:02:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:02:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:02:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:02:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:02:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:02:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:02:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:02:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:02:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:02:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:02:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:02:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:02:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:02:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 13:02:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:02:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:02:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:02:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:02:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:02:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:02:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:02:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:02:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:02:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:02:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:02:28,914 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:02:28,915 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:02:28,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:28 BoogieIcfgContainer [2020-07-20 13:02:28,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:02:28,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:02:28,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:02:28,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:02:28,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:02:26" (1/3) ... [2020-07-20 13:02:28,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f330cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:28, skipping insertion in model container [2020-07-20 13:02:28,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:27" (2/3) ... [2020-07-20 13:02:28,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f330cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:28, skipping insertion in model container [2020-07-20 13:02:28,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:28" (3/3) ... [2020-07-20 13:02:28,930 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-07-20 13:02:28,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:02:28,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:02:28,964 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:02:28,988 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:02:28,988 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:02:28,989 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:02:28,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:02:28,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:02:28,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:02:28,989 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:02:28,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:02:29,012 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-07-20 13:02:29,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:02:29,022 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:29,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:29,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:29,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1046284201, now seen corresponding path program 1 times [2020-07-20 13:02:29,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:29,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867128012] [2020-07-20 13:02:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:29,509 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:29,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:29,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:02:29,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:29,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:29,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867128012] [2020-07-20 13:02:29,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:29,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:02:29,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963368580] [2020-07-20 13:02:29,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:02:29,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:29,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:02:29,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:02:29,595 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2020-07-20 13:02:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:29,643 INFO L93 Difference]: Finished difference Result 222 states and 279 transitions. [2020-07-20 13:02:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:02:29,644 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 13:02:29,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:29,663 INFO L225 Difference]: With dead ends: 222 [2020-07-20 13:02:29,664 INFO L226 Difference]: Without dead ends: 111 [2020-07-20 13:02:29,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:02:29,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-07-20 13:02:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-07-20 13:02:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-20 13:02:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2020-07-20 13:02:29,737 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2020-07-20 13:02:29,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:29,740 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2020-07-20 13:02:29,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:02:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2020-07-20 13:02:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 13:02:29,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:29,749 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] [2020-07-20 13:02:29,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:29,961 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:29,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:29,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1021968907, now seen corresponding path program 1 times [2020-07-20 13:02:29,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:29,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509301312] [2020-07-20 13:02:29,964 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:30,381 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:30,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:30,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:02:30,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:30,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:30,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509301312] [2020-07-20 13:02:30,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:30,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:30,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128321639] [2020-07-20 13:02:30,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:30,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:30,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:30,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:30,455 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 3 states. [2020-07-20 13:02:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:30,503 INFO L93 Difference]: Finished difference Result 165 states and 193 transitions. [2020-07-20 13:02:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:30,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 13:02:30,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:30,506 INFO L225 Difference]: With dead ends: 165 [2020-07-20 13:02:30,506 INFO L226 Difference]: Without dead ends: 102 [2020-07-20 13:02:30,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:30,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-07-20 13:02:30,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-07-20 13:02:30,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-07-20 13:02:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2020-07-20 13:02:30,523 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 53 [2020-07-20 13:02:30,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:30,524 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2020-07-20 13:02:30,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2020-07-20 13:02:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 13:02:30,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:30,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:30,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:30,742 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:30,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:30,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1636314529, now seen corresponding path program 1 times [2020-07-20 13:02:30,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:30,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689136126] [2020-07-20 13:02:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:31,128 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:31,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:31,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:02:31,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:31,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:31,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689136126] [2020-07-20 13:02:31,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:31,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:31,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513468582] [2020-07-20 13:02:31,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:31,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:31,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:31,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:31,172 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 3 states. [2020-07-20 13:02:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:31,199 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2020-07-20 13:02:31,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:31,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-20 13:02:31,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:31,203 INFO L225 Difference]: With dead ends: 256 [2020-07-20 13:02:31,204 INFO L226 Difference]: Without dead ends: 178 [2020-07-20 13:02:31,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-20 13:02:31,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2020-07-20 13:02:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-20 13:02:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 209 transitions. [2020-07-20 13:02:31,231 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 209 transitions. Word has length 57 [2020-07-20 13:02:31,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:31,232 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 209 transitions. [2020-07-20 13:02:31,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:31,232 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 209 transitions. [2020-07-20 13:02:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 13:02:31,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:31,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:31,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:31,449 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:31,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:31,450 INFO L82 PathProgramCache]: Analyzing trace with hash -384943424, now seen corresponding path program 1 times [2020-07-20 13:02:31,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:31,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597606460] [2020-07-20 13:02:31,451 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:31,995 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:31,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:32,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 13:02:32,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:32,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:32,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597606460] [2020-07-20 13:02:32,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:32,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:02:32,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753488892] [2020-07-20 13:02:32,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:02:32,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:32,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:02:32,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:02:32,057 INFO L87 Difference]: Start difference. First operand 174 states and 209 transitions. Second operand 6 states. [2020-07-20 13:02:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:32,273 INFO L93 Difference]: Finished difference Result 459 states and 577 transitions. [2020-07-20 13:02:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:02:32,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 13:02:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:32,278 INFO L225 Difference]: With dead ends: 459 [2020-07-20 13:02:32,279 INFO L226 Difference]: Without dead ends: 309 [2020-07-20 13:02:32,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:02:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-07-20 13:02:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 305. [2020-07-20 13:02:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-07-20 13:02:32,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 376 transitions. [2020-07-20 13:02:32,330 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 376 transitions. Word has length 63 [2020-07-20 13:02:32,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:32,330 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 376 transitions. [2020-07-20 13:02:32,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:02:32,331 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 376 transitions. [2020-07-20 13:02:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 13:02:32,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:32,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:02:32,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:32,556 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:32,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:32,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1334484666, now seen corresponding path program 1 times [2020-07-20 13:02:32,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:32,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956587158] [2020-07-20 13:02:32,558 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:33,002 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:02:33,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:02:33,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:02:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:02:33,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:02:33,385 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:02:33,385 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:02:33,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:33,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:02:33 BoogieIcfgContainer [2020-07-20 13:02:33,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:02:33,773 INFO L168 Benchmark]: Toolchain (without parser) took 6912.07 ms. Allocated memory was 145.8 MB in the beginning and 281.0 MB in the end (delta: 135.3 MB). Free memory was 101.2 MB in the beginning and 212.9 MB in the end (delta: -111.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,774 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.00 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 172.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,776 INFO L168 Benchmark]: Boogie Preprocessor took 97.88 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,777 INFO L168 Benchmark]: RCFGBuilder took 1283.62 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.1 MB in the beginning and 199.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,778 INFO L168 Benchmark]: TraceAbstraction took 4848.32 ms. Allocated memory was 237.0 MB in the beginning and 281.0 MB in the end (delta: 44.0 MB). Free memory was 199.3 MB in the beginning and 212.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:02:33,782 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.00 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 172.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.88 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.62 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.1 MB in the beginning and 199.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4848.32 ms. Allocated memory was 237.0 MB in the beginning and 281.0 MB in the end (delta: 44.0 MB). Free memory was 199.3 MB in the beginning and 212.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=90, \old(head)=69, \old(head)=78, \old(methaneLevelCritical)=64, \old(pumpRunning)=60, \old(systemActive)=86, \old(waterLevel)=70, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] int retValue_acc ; [L166] 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] [L170] 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] [L171] 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] [L172] 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] [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] 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] [L172] 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] [L172] tmp = valid_product() [L174] 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] [L176] 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] [L177] 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] [L159] 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] [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] 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] [L754] 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] [L756] 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] [L762] tmp = __VERIFIER_nondet_int() [L764] 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] [L766] 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] [L829] COND TRUE waterLevel < 2 [L830] 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] [L766] 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] [L772] tmp___0 = __VERIFIER_nondet_int() [L774] 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] [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND FALSE !(\read(tmp___2)) [L788] tmp___1 = __VERIFIER_nondet_int() [L790] COND TRUE \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=1, tmp___2=0, waterLevel=2] [L792] CALL stopSystem() 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] [L732] COND FALSE !(\read(pumpRunning)) 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] [L739] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L792] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L799] 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=0, waterLevel=2] [L603] 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=0, waterLevel=2] [L610] COND FALSE !(\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=0, waterLevel=2] [L618] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L564] 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=0, waterLevel=2] [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] 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=0, waterLevel=2] [L564] 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=0, waterLevel=2] [L564] tmp = isMethaneLevelCritical() [L566] 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=0, tmp=0, waterLevel=2] [L570] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] 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=0, retValue_acc=2, systemActive=0, waterLevel=2] [L570] 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=0, systemActive=0, tmp=0, waterLevel=2] [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L574] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] 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=0, waterLevel=2] [L574] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L580] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 149 SDslu, 604 SDs, 0 SdLazy, 78 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 292 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 23257 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2631 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...