/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:36:47,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:36:47,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:36:47,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:36:47,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:36:47,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:36:47,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:36:47,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:36:47,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:36:47,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:36:47,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:36:47,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:36:47,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:36:47,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:36:47,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:36:47,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:36:47,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:36:47,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:36:47,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:36:47,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:36:47,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:36:47,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:36:47,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:36:47,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:36:47,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:36:47,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:36:47,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:36:47,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:36:47,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:36:47,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:36:47,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:36:47,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:36:47,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:36:47,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:36:47,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:36:47,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:36:47,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:36:47,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:36:47,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:36:47,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:36:47,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:36:47,650 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 [2020-07-21 10:36:47,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:36:47,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:36:47,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:36:47,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:36:47,668 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:36:47,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:36:47,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:36:47,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:36:47,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:36:47,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:36:47,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:36:47,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:36:47,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:36:47,669 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:36:47,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:36:47,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:36:47,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:36:47,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:36:47,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:36:47,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:36:47,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:36:47,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:36:47,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:36:47,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:36:47,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:36:47,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:36:47,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:47,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:36:47,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:36:47,673 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 -> NOT_INCREMENTALLY [2020-07-21 10:36:47,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:36:47,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:36:47,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:36:47,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:36:47,993 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:36:47,995 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-07-21 10:36:48,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab26175f6/3ae512e4e41d477883c6488f2e39b5e7/FLAGc9ffd0a12 [2020-07-21 10:36:48,565 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:36:48,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-07-21 10:36:48,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab26175f6/3ae512e4e41d477883c6488f2e39b5e7/FLAGc9ffd0a12 [2020-07-21 10:36:48,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab26175f6/3ae512e4e41d477883c6488f2e39b5e7 [2020-07-21 10:36:48,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:36:48,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:36:48,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:48,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:36:48,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:36:48,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:48" (1/1) ... [2020-07-21 10:36:48,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:48, skipping insertion in model container [2020-07-21 10:36:48,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:48" (1/1) ... [2020-07-21 10:36:48,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:36:49,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:36:49,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:49,477 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:36:49,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:49,629 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:36:49,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49 WrapperNode [2020-07-21 10:36:49,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:49,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:36:49,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:36:49,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:36:49,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:36:49,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:36:49,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:36:49,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:36:49,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (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 [2020-07-21 10:36:49,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:36:49,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:36:49,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:49,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:36:49,817 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:36:49,818 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:36:49,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:36:49,819 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:36:49,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:36:49,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:36:49,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:36:49,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:36:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:36:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:49,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:49,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:36:49,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:36:49,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:36:49,823 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:36:49,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:36:49,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-21 10:36:49,824 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:36:49,824 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:36:49,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:36:49,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:36:49,825 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:36:49,825 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 10:36:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:36:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:36:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:36:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:36:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:36:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:36:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:36:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:36:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:36:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:36:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:36:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:36:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:36:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:36:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:36:49,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:36:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:36:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:36:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:36:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:36:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:36:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:36:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:36:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:36:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:36:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:36:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:36:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:36:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:36:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:36:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:36:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:36:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:36:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:36:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:36:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:36:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:36:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:36:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:36:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:36:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:36:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:36:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:36:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:36:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:36:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:36:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:36:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 10:36:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:36:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-21 10:36:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:36:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:36:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:36:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:36:50,953 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:36:50,954 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:36:50,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:50 BoogieIcfgContainer [2020-07-21 10:36:50,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:36:50,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:36:50,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:36:50,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:36:50,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:36:48" (1/3) ... [2020-07-21 10:36:50,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c03535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:50, skipping insertion in model container [2020-07-21 10:36:50,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49" (2/3) ... [2020-07-21 10:36:50,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c03535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:50, skipping insertion in model container [2020-07-21 10:36:50,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:50" (3/3) ... [2020-07-21 10:36:50,967 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-07-21 10:36:50,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:36:50,986 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:36:51,001 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:36:51,026 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:36:51,026 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:36:51,027 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:36:51,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:36:51,027 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:36:51,027 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:36:51,028 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:36:51,028 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:36:51,052 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-07-21 10:36:51,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:36:51,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:51,068 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] [2020-07-21 10:36:51,069 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:51,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:51,074 INFO L82 PathProgramCache]: Analyzing trace with hash 789577792, now seen corresponding path program 1 times [2020-07-21 10:36:51,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:51,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086825434] [2020-07-21 10:36:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 10:36:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:51,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:36:51,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:51,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:51,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086825434] [2020-07-21 10:36:51,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:51,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:36:51,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515506821] [2020-07-21 10:36:51,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:36:51,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:51,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:36:51,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:36:51,407 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2020-07-21 10:36:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:51,446 INFO L93 Difference]: Finished difference Result 192 states and 239 transitions. [2020-07-21 10:36:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:36:51,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 10:36:51,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:51,459 INFO L225 Difference]: With dead ends: 192 [2020-07-21 10:36:51,459 INFO L226 Difference]: Without dead ends: 96 [2020-07-21 10:36:51,464 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 [2020-07-21 10:36:51,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-07-21 10:36:51,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-07-21 10:36:51,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-21 10:36:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-07-21 10:36:51,519 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52 [2020-07-21 10:36:51,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:51,519 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-07-21 10:36:51,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:36:51,520 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-07-21 10:36:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 10:36:51,524 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:51,524 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] [2020-07-21 10:36:51,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:51,738 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:51,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:51,739 INFO L82 PathProgramCache]: Analyzing trace with hash 86425602, now seen corresponding path program 1 times [2020-07-21 10:36:51,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:51,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547885947] [2020-07-21 10:36:51,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 10:36:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:51,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:36:51,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:51,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:51,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547885947] [2020-07-21 10:36:51,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:51,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:51,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129663107] [2020-07-21 10:36:51,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:51,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:51,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:51,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:51,975 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 3 states. [2020-07-21 10:36:52,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:52,019 INFO L93 Difference]: Finished difference Result 132 states and 151 transitions. [2020-07-21 10:36:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:52,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 10:36:52,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:52,023 INFO L225 Difference]: With dead ends: 132 [2020-07-21 10:36:52,024 INFO L226 Difference]: Without dead ends: 87 [2020-07-21 10:36:52,026 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 [2020-07-21 10:36:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-21 10:36:52,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-07-21 10:36:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-21 10:36:52,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-07-21 10:36:52,046 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53 [2020-07-21 10:36:52,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:52,047 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-07-21 10:36:52,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-07-21 10:36:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 10:36:52,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:52,053 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] [2020-07-21 10:36:52,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:52,254 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:52,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:52,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1920799428, now seen corresponding path program 1 times [2020-07-21 10:36:52,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:52,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782056890] [2020-07-21 10:36:52,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 10:36:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:52,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:36:52,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:52,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:52,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:52,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782056890] [2020-07-21 10:36:52,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:52,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:52,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733981661] [2020-07-21 10:36:52,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:52,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:52,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:52,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:52,478 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 3 states. [2020-07-21 10:36:52,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:52,501 INFO L93 Difference]: Finished difference Result 211 states and 249 transitions. [2020-07-21 10:36:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:52,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 10:36:52,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:52,506 INFO L225 Difference]: With dead ends: 211 [2020-07-21 10:36:52,506 INFO L226 Difference]: Without dead ends: 148 [2020-07-21 10:36:52,507 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 [2020-07-21 10:36:52,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-21 10:36:52,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 138. [2020-07-21 10:36:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-07-21 10:36:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2020-07-21 10:36:52,530 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 57 [2020-07-21 10:36:52,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:52,530 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2020-07-21 10:36:52,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:52,531 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2020-07-21 10:36:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 10:36:52,535 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:52,535 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] [2020-07-21 10:36:52,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:52,753 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:52,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:52,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1032165772, now seen corresponding path program 1 times [2020-07-21 10:36:52,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:52,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864501722] [2020-07-21 10:36:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 10:36:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:52,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:36:52,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:53,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:53,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864501722] [2020-07-21 10:36:53,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:53,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:36:53,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23033033] [2020-07-21 10:36:53,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:36:53,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:53,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:36:53,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:36:53,022 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 6 states. [2020-07-21 10:36:53,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:53,267 INFO L93 Difference]: Finished difference Result 351 states and 433 transitions. [2020-07-21 10:36:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:36:53,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-07-21 10:36:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:53,271 INFO L225 Difference]: With dead ends: 351 [2020-07-21 10:36:53,271 INFO L226 Difference]: Without dead ends: 237 [2020-07-21 10:36:53,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:36:53,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-07-21 10:36:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 233. [2020-07-21 10:36:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-07-21 10:36:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 280 transitions. [2020-07-21 10:36:53,299 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 280 transitions. Word has length 60 [2020-07-21 10:36:53,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:53,300 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 280 transitions. [2020-07-21 10:36:53,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:36:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 280 transitions. [2020-07-21 10:36:53,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 10:36:53,301 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:53,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:36:53,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:53,517 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:53,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:53,518 INFO L82 PathProgramCache]: Analyzing trace with hash -68424058, now seen corresponding path program 1 times [2020-07-21 10:36:53,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:53,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890923014] [2020-07-21 10:36:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-21 10:36:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:53,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:53,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:54,164 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:36:54,164 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:36:54,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:54,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:36:54 BoogieIcfgContainer [2020-07-21 10:36:54,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:36:54,517 INFO L168 Benchmark]: Toolchain (without parser) took 5604.11 ms. Allocated memory was 144.2 MB in the beginning and 251.1 MB in the end (delta: 107.0 MB). Free memory was 99.9 MB in the beginning and 125.5 MB in the end (delta: -25.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:54,518 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 10:36:54,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.77 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 170.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:54,520 INFO L168 Benchmark]: Boogie Preprocessor took 99.33 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:54,521 INFO L168 Benchmark]: RCFGBuilder took 1228.84 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.7 MB in the beginning and 199.5 MB in the end (delta: -33.8 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:54,521 INFO L168 Benchmark]: TraceAbstraction took 3554.34 ms. Allocated memory was 232.8 MB in the beginning and 251.1 MB in the end (delta: 18.4 MB). Free memory was 198.0 MB in the beginning and 125.5 MB in the end (delta: 72.5 MB). Peak memory consumption was 90.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:54,525 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory is still 119.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.77 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 170.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.33 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1228.84 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.7 MB in the beginning and 199.5 MB in the end (delta: -33.8 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3554.34 ms. Allocated memory was 232.8 MB in the beginning and 251.1 MB in the end (delta: 18.4 MB). Free memory was 198.0 MB in the beginning and 125.5 MB in the end (delta: 72.5 MB). Peak memory consumption was 90.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=74, \old(head)=87, \old(head)=42, \old(methaneLevelCritical)=29, \old(pumpRunning)=78, \old(systemActive)=92, \old(waterLevel)=65, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] int retValue_acc ; [L160] 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] [L164] 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] [L165] 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] [L166] 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] [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] 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] [L166] 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] [L166] tmp = valid_product() [L168] 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] [L170] 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] [L171] 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] [L150] 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] [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] 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] [L738] 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] [L740] 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] [L746] tmp = __VERIFIER_nondet_int() [L748] 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] [L750] 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] [L822] COND TRUE waterLevel < 2 [L823] 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] [L750] 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] [L756] tmp___0 = __VERIFIER_nondet_int() [L758] 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] [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) 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___2=1, waterLevel=2] [L783] 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] [L595] 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] [L602] 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] [L604] FCALL 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] [L610] 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=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] 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=1, waterLevel=2] [L51] 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] [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] 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] [L51] 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] [L51] tmp = isMethaneLevelCritical() [L53] 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] [L57] 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=1, waterLevel=2] [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] 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=1, waterLevel=2] [L57] 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=1, tmp=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] 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=1, waterLevel=2] [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] 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] [L61] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L67] 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=1, waterLevel=2] [L799] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 210 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 437 SDtfs, 112 SDslu, 484 SDs, 0 SdLazy, 68 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred 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, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 22198 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2661 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...