/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:37:06,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:37:06,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:37:06,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:37:06,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:37:06,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:37:06,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:37:06,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:37:06,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:37:06,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:37:06,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:37:06,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:37:06,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:37:06,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:37:06,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:37:06,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:37:06,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:37:06,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:37:06,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:37:06,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:37:06,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:37:06,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:37:06,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:37:06,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:37:06,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:37:06,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:37:06,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:37:06,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:37:06,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:37:06,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:37:06,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:37:06,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:37:06,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:37:06,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:37:06,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:37:06,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:37:06,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:37:06,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:37:06,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:37:06,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:37:06,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:37:06,708 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 10:37:06,722 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:37:06,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:37:06,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:37:06,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:37:06,724 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:37:06,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:37:06,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:37:06,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:37:06,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:37:06,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:37:06,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:37:06,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:37:06,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:37:06,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:37:06,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:37:06,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:37:06,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:37:06,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:37:06,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:37:06,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:37:06,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:37:06,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:37:06,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:37:06,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:37:06,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:37:06,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:37:06,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:06,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:37:06,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:37:06,729 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 10:37:07,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:37:07,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:37:07,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:37:07,057 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:37:07,057 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:37:07,058 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-07-21 10:37:07,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b81cf7a/ab6c494fd8274308abd9727f8144d6dd/FLAG0d8a06414 [2020-07-21 10:37:07,600 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:37:07,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-07-21 10:37:07,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b81cf7a/ab6c494fd8274308abd9727f8144d6dd/FLAG0d8a06414 [2020-07-21 10:37:07,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b81cf7a/ab6c494fd8274308abd9727f8144d6dd [2020-07-21 10:37:07,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:37:07,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:37:07,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:07,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:37:07,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:37:07,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:07" (1/1) ... [2020-07-21 10:37:07,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8cf046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:07, skipping insertion in model container [2020-07-21 10:37:07,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:07" (1/1) ... [2020-07-21 10:37:07,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:37:07,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:37:08,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:08,531 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:37:08,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:08,731 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:37:08,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08 WrapperNode [2020-07-21 10:37:08,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:08,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:37:08,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:37:08,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:37:08,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (1/1) ... [2020-07-21 10:37:08,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (1/1) ... [2020-07-21 10:37:08,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (1/1) ... [2020-07-21 10:37:08,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (1/1) ... [2020-07-21 10:37:08,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (1/1) ... [2020-07-21 10:37:08,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (1/1) ... [2020-07-21 10:37:08,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (1/1) ... [2020-07-21 10:37:08,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:37:08,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:37:08,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:37:08,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:37:08,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (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 10:37:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:37:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:37:08,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:37:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:37:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:37:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:37:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:37:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:37:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:37:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:37:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:37:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:37:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:37:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:37:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:37:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:37:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:37:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:37:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:37:08,919 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:37:08,919 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:37:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:37:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:37:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:37:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:37:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:37:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 10:37:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 10:37:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:37:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:37:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:37:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:37:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:37:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:37:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 10:37:08,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:37:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:37:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:37:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:37:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:37:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:37:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:37:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:37:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:37:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:37:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:37:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:37:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:37:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:37:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:37:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:37:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:37:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:37:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:37:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:37:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:37:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:37:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:37:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:37:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:37:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:37:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:37:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:37:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:37:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:37:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:37:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 10:37:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:37:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:37:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:37:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 10:37:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:37:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:37:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:37:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:08,933 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:37:08,933 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:37:08,933 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 10:37:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:37:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:37:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 10:37:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:37:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:37:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:37:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:37:10,186 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:37:10,187 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:37:10,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:10 BoogieIcfgContainer [2020-07-21 10:37:10,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:37:10,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:37:10,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:37:10,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:37:10,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:37:07" (1/3) ... [2020-07-21 10:37:10,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7156bf68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:10, skipping insertion in model container [2020-07-21 10:37:10,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:08" (2/3) ... [2020-07-21 10:37:10,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7156bf68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:10, skipping insertion in model container [2020-07-21 10:37:10,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:10" (3/3) ... [2020-07-21 10:37:10,200 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-07-21 10:37:10,209 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:37:10,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:37:10,230 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:37:10,252 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:37:10,252 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:37:10,252 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:37:10,252 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:37:10,253 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:37:10,253 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:37:10,253 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:37:10,253 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:37:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2020-07-21 10:37:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:37:10,285 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:10,286 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 10:37:10,286 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:10,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:10,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1671120280, now seen corresponding path program 1 times [2020-07-21 10:37:10,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:10,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57471594] [2020-07-21 10:37:10,303 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 10:37:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:10,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:37:10,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:10,626 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 10:37:10,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:10,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57471594] [2020-07-21 10:37:10,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:10,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:37:10,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697715723] [2020-07-21 10:37:10,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:37:10,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:10,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:37:10,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:37:10,656 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 2 states. [2020-07-21 10:37:10,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:10,738 INFO L93 Difference]: Finished difference Result 284 states and 355 transitions. [2020-07-21 10:37:10,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:37:10,740 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 10:37:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:10,758 INFO L225 Difference]: With dead ends: 284 [2020-07-21 10:37:10,758 INFO L226 Difference]: Without dead ends: 142 [2020-07-21 10:37:10,763 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 10:37:10,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-07-21 10:37:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-07-21 10:37:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-07-21 10:37:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 169 transitions. [2020-07-21 10:37:10,820 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 169 transitions. Word has length 52 [2020-07-21 10:37:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:10,821 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 169 transitions. [2020-07-21 10:37:10,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:37:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 169 transitions. [2020-07-21 10:37:10,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 10:37:10,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:10,826 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 10:37:11,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:11,040 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:11,041 INFO L82 PathProgramCache]: Analyzing trace with hash -374509178, now seen corresponding path program 1 times [2020-07-21 10:37:11,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:11,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276342961] [2020-07-21 10:37:11,043 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 10:37:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:11,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:37:11,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:11,339 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 10:37:11,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:11,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276342961] [2020-07-21 10:37:11,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:11,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:11,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222145726] [2020-07-21 10:37:11,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:11,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:11,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:11,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:11,343 INFO L87 Difference]: Start difference. First operand 142 states and 169 transitions. Second operand 3 states. [2020-07-21 10:37:11,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:11,365 INFO L93 Difference]: Finished difference Result 227 states and 269 transitions. [2020-07-21 10:37:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:11,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 10:37:11,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:11,369 INFO L225 Difference]: With dead ends: 227 [2020-07-21 10:37:11,369 INFO L226 Difference]: Without dead ends: 133 [2020-07-21 10:37:11,371 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 10:37:11,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-21 10:37:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-21 10:37:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-21 10:37:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2020-07-21 10:37:11,387 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 53 [2020-07-21 10:37:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:11,387 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2020-07-21 10:37:11,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2020-07-21 10:37:11,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 10:37:11,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:11,390 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 10:37:11,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:11,605 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:11,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:11,605 INFO L82 PathProgramCache]: Analyzing trace with hash 299348801, now seen corresponding path program 1 times [2020-07-21 10:37:11,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:11,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986764175] [2020-07-21 10:37:11,606 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 10:37:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:11,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:37:11,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:11,847 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 10:37:11,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:11,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986764175] [2020-07-21 10:37:11,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:11,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:11,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922594146] [2020-07-21 10:37:11,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:11,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:11,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:11,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:11,850 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 3 states. [2020-07-21 10:37:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:11,906 INFO L93 Difference]: Finished difference Result 349 states and 423 transitions. [2020-07-21 10:37:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:11,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 10:37:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:11,911 INFO L225 Difference]: With dead ends: 349 [2020-07-21 10:37:11,911 INFO L226 Difference]: Without dead ends: 240 [2020-07-21 10:37:11,912 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 10:37:11,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-07-21 10:37:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 236. [2020-07-21 10:37:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-21 10:37:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 285 transitions. [2020-07-21 10:37:11,942 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 285 transitions. Word has length 57 [2020-07-21 10:37:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:11,943 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 285 transitions. [2020-07-21 10:37:11,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 285 transitions. [2020-07-21 10:37:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 10:37:11,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:11,947 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] [2020-07-21 10:37:12,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:12,160 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:12,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:12,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1748947784, now seen corresponding path program 1 times [2020-07-21 10:37:12,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:12,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668278649] [2020-07-21 10:37:12,162 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 10:37:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:12,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:37:12,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:12,506 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 10:37:12,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:12,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668278649] [2020-07-21 10:37:12,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:12,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:37:12,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309822689] [2020-07-21 10:37:12,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:37:12,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:12,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:37:12,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:37:12,511 INFO L87 Difference]: Start difference. First operand 236 states and 285 transitions. Second operand 6 states. [2020-07-21 10:37:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:12,895 INFO L93 Difference]: Finished difference Result 645 states and 825 transitions. [2020-07-21 10:37:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:37:12,896 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 10:37:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:12,901 INFO L225 Difference]: With dead ends: 645 [2020-07-21 10:37:12,901 INFO L226 Difference]: Without dead ends: 433 [2020-07-21 10:37:12,903 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 [2020-07-21 10:37:12,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-07-21 10:37:12,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 429. [2020-07-21 10:37:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-07-21 10:37:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 536 transitions. [2020-07-21 10:37:12,946 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 536 transitions. Word has length 63 [2020-07-21 10:37:12,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:12,946 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 536 transitions. [2020-07-21 10:37:12,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:37:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 536 transitions. [2020-07-21 10:37:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 10:37:12,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:12,950 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] [2020-07-21 10:37:13,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:13,164 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:13,164 INFO L82 PathProgramCache]: Analyzing trace with hash -145060242, now seen corresponding path program 1 times [2020-07-21 10:37:13,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:13,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919131505] [2020-07-21 10:37:13,165 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 10:37:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:13,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:13,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:13,867 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:37:13,868 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:37:14,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:14,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:37:14 BoogieIcfgContainer [2020-07-21 10:37:14,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:37:14,230 INFO L168 Benchmark]: Toolchain (without parser) took 6316.08 ms. Allocated memory was 145.8 MB in the beginning and 270.5 MB in the end (delta: 124.8 MB). Free memory was 103.0 MB in the beginning and 206.4 MB in the end (delta: -103.4 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:14,231 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 10:37:14,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.08 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 102.6 MB in the beginning and 172.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:14,234 INFO L168 Benchmark]: Boogie Preprocessor took 100.68 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:14,236 INFO L168 Benchmark]: RCFGBuilder took 1358.09 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 168.4 MB in the beginning and 189.4 MB in the end (delta: -21.0 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:14,240 INFO L168 Benchmark]: TraceAbstraction took 4032.50 ms. Allocated memory was 233.3 MB in the beginning and 270.5 MB in the end (delta: 37.2 MB). Free memory was 189.4 MB in the beginning and 206.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:14,249 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 819.08 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 102.6 MB in the beginning and 172.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.68 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1358.09 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 168.4 MB in the beginning and 189.4 MB in the end (delta: -21.0 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4032.50 ms. Allocated memory was 233.3 MB in the beginning and 270.5 MB in the end (delta: 37.2 MB). Free memory was 189.4 MB in the beginning and 206.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 106.4 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: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=83, \old(head)=91, \old(head)=38, \old(methaneLevelCritical)=26, \old(pumpRunning)=62, \old(systemActive)=92, \old(waterLevel)=39, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; [L131] 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] [L135] 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] [L136] 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] [L137] 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] [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] 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] [L137] 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] [L137] tmp = valid_product() [L139] 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] [L141] 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] [L142] 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] [L121] 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] [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] 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] [L565] 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] [L567] 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] [L573] tmp = __VERIFIER_nondet_int() [L575] 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] [L577] 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] [L859] COND TRUE waterLevel < 2 [L860] 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] [L577] 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] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] 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] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] 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] [L603] 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] [L828] 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] [L835] 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] [L603] 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] [L610] 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] [L637] 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] [L644] 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] [L652] 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] [L936] int tmp ; [L937] int tmp___0 ; [L938] 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] [L942] 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] [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] 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] [L942] 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] [L942] tmp = isMethaneLevelCritical() [L944] 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] [L948] 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] [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] 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] [L948] 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] [L948] tmp___0 = getWaterLevel() [L950] 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] [L952] 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] [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] 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] [L952] 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] [L952] tmp___1 = isPumpRunning() [L954] 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] [L958] 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 40 procedures, 241 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 726 SDtfs, 229 SDslu, 872 SDs, 0 SdLazy, 106 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=429occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 23257 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2702 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...