/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:01:44,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:01:44,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:01:44,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:01:44,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:01:44,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:01:44,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:01:44,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:01:44,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:01:44,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:01:44,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:01:44,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:01:44,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:01:44,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:01:44,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:01:44,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:01:44,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:01:44,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:01:44,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:01:44,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:01:44,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:01:44,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:01:44,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:01:44,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:01:44,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:01:44,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:01:44,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:01:44,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:01:44,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:01:44,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:01:44,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:01:44,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:01:44,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:01:44,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:01:44,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:01:44,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:01:44,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:01:44,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:01:44,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:01:44,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:01:44,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:01:44,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 13:01:44,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:01:44,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:01:44,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:01:44,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:01:44,757 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:01:44,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:01:44,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:01:44,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:01:44,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:01:44,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:01:44,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:01:44,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:01:44,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:01:44,760 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:01:44,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:01:44,760 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:01:44,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:01:44,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:01:44,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:01:44,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:01:44,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:01:44,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:01:44,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:01:44,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:01:44,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:01:44,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:01:44,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:44,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:01:44,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:01:44,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 13:01:45,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:01:45,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:01:45,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:01:45,088 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:01:45,088 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:01:45,089 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-07-20 13:01:45,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9ee3bfd/1771b5f20113405298e3bb91702fd8ac/FLAGfa2bd2e5a [2020-07-20 13:01:45,748 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:01:45,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-07-20 13:01:45,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9ee3bfd/1771b5f20113405298e3bb91702fd8ac/FLAGfa2bd2e5a [2020-07-20 13:01:45,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9ee3bfd/1771b5f20113405298e3bb91702fd8ac [2020-07-20 13:01:45,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:01:45,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:01:45,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:46,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:01:46,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:01:46,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:45" (1/1) ... [2020-07-20 13:01:46,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a20b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46, skipping insertion in model container [2020-07-20 13:01:46,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:45" (1/1) ... [2020-07-20 13:01:46,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:01:46,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:01:46,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:46,561 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:01:46,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:01:46,704 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:01:46,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46 WrapperNode [2020-07-20 13:01:46,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:01:46,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:01:46,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:01:46,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:01:46,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... [2020-07-20 13:01:46,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... [2020-07-20 13:01:46,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... [2020-07-20 13:01:46,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... [2020-07-20 13:01:46,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... [2020-07-20 13:01:46,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... [2020-07-20 13:01:46,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... [2020-07-20 13:01:46,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:01:46,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:01:46,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:01:46,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:01:46,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:01:46,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:01:46,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:01:46,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:01:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:01:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:01:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:01:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:01:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:01:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:01:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:01:46,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:01:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:01:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:01:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:01:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:01:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:01:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:01:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:01:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:01:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:01:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:01:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:01:46,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:01:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:01:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:01:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:01:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:01:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:01:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:01:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:01:46,885 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:01:46,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:01:46,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:01:46,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:01:46,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:01:46,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:01:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:01:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:01:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:01:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:01:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:01:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:01:46,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:01:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:01:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:01:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:01:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:01:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:01:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:01:46,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:01:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:01:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:01:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:01:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:01:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:01:46,888 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:01:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:01:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:01:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:01:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:01:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:01:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:01:46,889 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:01:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:01:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:01:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 13:01:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:01:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:01:46,890 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:01:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:01:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:01:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:01:46,891 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:01:46,892 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:01:46,892 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:01:46,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 13:01:46,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:01:46,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:01:46,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:01:46,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:01:46,893 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:01:46,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:01:46,894 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:01:46,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:01:46,895 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:01:46,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:01:46,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:01:46,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:01:47,982 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:01:47,983 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:01:47,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:47 BoogieIcfgContainer [2020-07-20 13:01:47,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:01:47,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:01:47,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:01:47,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:01:47,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:01:45" (1/3) ... [2020-07-20 13:01:47,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dd648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:47, skipping insertion in model container [2020-07-20 13:01:47,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:46" (2/3) ... [2020-07-20 13:01:47,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dd648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:01:47, skipping insertion in model container [2020-07-20 13:01:47,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:01:47" (3/3) ... [2020-07-20 13:01:47,997 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-07-20 13:01:48,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:01:48,017 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:01:48,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:01:48,058 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:01:48,058 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:01:48,059 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:01:48,059 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:01:48,059 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:01:48,059 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:01:48,059 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:01:48,060 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:01:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-07-20 13:01:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:01:48,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:48,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:48,095 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:48,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:48,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1759491915, now seen corresponding path program 1 times [2020-07-20 13:01:48,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:48,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744291360] [2020-07-20 13:01:48,112 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:48,572 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:48,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:48,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:01:48,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:48,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:48,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744291360] [2020-07-20 13:01:48,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:48,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:01:48,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435096938] [2020-07-20 13:01:48,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:01:48,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:48,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:01:48,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:48,642 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2020-07-20 13:01:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:48,686 INFO L93 Difference]: Finished difference Result 234 states and 291 transitions. [2020-07-20 13:01:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:01:48,687 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-20 13:01:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:48,700 INFO L225 Difference]: With dead ends: 234 [2020-07-20 13:01:48,700 INFO L226 Difference]: Without dead ends: 119 [2020-07-20 13:01:48,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:01:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-20 13:01:48,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-07-20 13:01:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-07-20 13:01:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2020-07-20 13:01:48,767 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 51 [2020-07-20 13:01:48,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:48,767 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2020-07-20 13:01:48,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:01:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2020-07-20 13:01:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:01:48,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:48,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:48,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:48,987 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:48,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:48,988 INFO L82 PathProgramCache]: Analyzing trace with hash -273292015, now seen corresponding path program 1 times [2020-07-20 13:01:48,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:48,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499056729] [2020-07-20 13:01:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:49,436 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:49,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:49,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:01:49,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:49,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:49,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499056729] [2020-07-20 13:01:49,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:49,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:49,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554149742] [2020-07-20 13:01:49,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:49,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:49,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:49,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:49,511 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 3 states. [2020-07-20 13:01:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:49,542 INFO L93 Difference]: Finished difference Result 174 states and 203 transitions. [2020-07-20 13:01:49,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:49,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 13:01:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:49,548 INFO L225 Difference]: With dead ends: 174 [2020-07-20 13:01:49,548 INFO L226 Difference]: Without dead ends: 110 [2020-07-20 13:01:49,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-20 13:01:49,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-07-20 13:01:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-20 13:01:49,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2020-07-20 13:01:49,565 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 52 [2020-07-20 13:01:49,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:49,566 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2020-07-20 13:01:49,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:49,566 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2020-07-20 13:01:49,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 13:01:49,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:49,568 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] [2020-07-20 13:01:49,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:49,782 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:49,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:49,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1232114680, now seen corresponding path program 1 times [2020-07-20 13:01:49,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:49,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913439136] [2020-07-20 13:01:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:50,229 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:50,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:50,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:01:50,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:50,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:50,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913439136] [2020-07-20 13:01:50,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:50,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:50,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013045070] [2020-07-20 13:01:50,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:50,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:50,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:50,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:50,273 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 3 states. [2020-07-20 13:01:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:50,303 INFO L93 Difference]: Finished difference Result 272 states and 325 transitions. [2020-07-20 13:01:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:50,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-20 13:01:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:50,308 INFO L225 Difference]: With dead ends: 272 [2020-07-20 13:01:50,308 INFO L226 Difference]: Without dead ends: 190 [2020-07-20 13:01:50,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-20 13:01:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 180. [2020-07-20 13:01:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-07-20 13:01:50,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 213 transitions. [2020-07-20 13:01:50,334 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 213 transitions. Word has length 56 [2020-07-20 13:01:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:50,334 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 213 transitions. [2020-07-20 13:01:50,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:50,335 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 213 transitions. [2020-07-20 13:01:50,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 13:01:50,337 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:50,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:50,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:50,551 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:50,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:50,551 INFO L82 PathProgramCache]: Analyzing trace with hash 466387433, now seen corresponding path program 1 times [2020-07-20 13:01:50,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:50,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005996401] [2020-07-20 13:01:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:50,952 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:50,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:50,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 13:01:50,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:51,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:51,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:51,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005996401] [2020-07-20 13:01:51,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:51,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:51,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185986830] [2020-07-20 13:01:51,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:51,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:51,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:51,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:51,020 INFO L87 Difference]: Start difference. First operand 180 states and 213 transitions. Second operand 6 states. [2020-07-20 13:01:51,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:51,237 INFO L93 Difference]: Finished difference Result 471 states and 575 transitions. [2020-07-20 13:01:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:51,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-07-20 13:01:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:51,242 INFO L225 Difference]: With dead ends: 471 [2020-07-20 13:01:51,242 INFO L226 Difference]: Without dead ends: 319 [2020-07-20 13:01:51,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:51,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-07-20 13:01:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 315. [2020-07-20 13:01:51,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-07-20 13:01:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 376 transitions. [2020-07-20 13:01:51,282 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 376 transitions. Word has length 62 [2020-07-20 13:01:51,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:51,283 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 376 transitions. [2020-07-20 13:01:51,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:51,283 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 376 transitions. [2020-07-20 13:01:51,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-20 13:01:51,286 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:51,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:51,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:51,494 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:51,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:51,495 INFO L82 PathProgramCache]: Analyzing trace with hash -995650491, now seen corresponding path program 1 times [2020-07-20 13:01:51,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:51,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485533443] [2020-07-20 13:01:51,496 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:51,844 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:51,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:51,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:51,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:51,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:51,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:51,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485533443] [2020-07-20 13:01:51,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:51,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:51,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975108145] [2020-07-20 13:01:51,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:51,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:51,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:51,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:51,896 INFO L87 Difference]: Start difference. First operand 315 states and 376 transitions. Second operand 6 states. [2020-07-20 13:01:52,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:52,154 INFO L93 Difference]: Finished difference Result 782 states and 974 transitions. [2020-07-20 13:01:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:01:52,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-07-20 13:01:52,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:52,166 INFO L225 Difference]: With dead ends: 782 [2020-07-20 13:01:52,166 INFO L226 Difference]: Without dead ends: 495 [2020-07-20 13:01:52,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:01:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-20 13:01:52,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 487. [2020-07-20 13:01:52,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-07-20 13:01:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 590 transitions. [2020-07-20 13:01:52,218 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 590 transitions. Word has length 66 [2020-07-20 13:01:52,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:52,218 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 590 transitions. [2020-07-20 13:01:52,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:52,219 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 590 transitions. [2020-07-20 13:01:52,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-20 13:01:52,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:52,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:52,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:52,431 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:52,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:52,432 INFO L82 PathProgramCache]: Analyzing trace with hash 155563889, now seen corresponding path program 1 times [2020-07-20 13:01:52,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:52,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504468961] [2020-07-20 13:01:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:52,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:52,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:52,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:01:52,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:52,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:52,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504468961] [2020-07-20 13:01:52,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:52,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:52,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142394147] [2020-07-20 13:01:52,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:52,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:52,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:52,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:52,764 INFO L87 Difference]: Start difference. First operand 487 states and 590 transitions. Second operand 3 states. [2020-07-20 13:01:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:52,817 INFO L93 Difference]: Finished difference Result 1389 states and 1806 transitions. [2020-07-20 13:01:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:52,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-07-20 13:01:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:52,828 INFO L225 Difference]: With dead ends: 1389 [2020-07-20 13:01:52,828 INFO L226 Difference]: Without dead ends: 930 [2020-07-20 13:01:52,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-07-20 13:01:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 927. [2020-07-20 13:01:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-07-20 13:01:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1174 transitions. [2020-07-20 13:01:52,921 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1174 transitions. Word has length 83 [2020-07-20 13:01:52,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:52,922 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1174 transitions. [2020-07-20 13:01:52,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1174 transitions. [2020-07-20 13:01:52,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-20 13:01:52,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:52,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:53,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:53,133 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:53,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1955726480, now seen corresponding path program 1 times [2020-07-20 13:01:53,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:53,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750428757] [2020-07-20 13:01:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:53,474 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:53,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:53,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:01:53,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:53,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:53,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750428757] [2020-07-20 13:01:53,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:53,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:53,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959669267] [2020-07-20 13:01:53,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:53,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:53,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:53,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:53,533 INFO L87 Difference]: Start difference. First operand 927 states and 1174 transitions. Second operand 6 states. [2020-07-20 13:01:53,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:53,620 INFO L93 Difference]: Finished difference Result 1866 states and 2420 transitions. [2020-07-20 13:01:53,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:01:53,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-07-20 13:01:53,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:53,627 INFO L225 Difference]: With dead ends: 1866 [2020-07-20 13:01:53,628 INFO L226 Difference]: Without dead ends: 967 [2020-07-20 13:01:53,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:01:53,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2020-07-20 13:01:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2020-07-20 13:01:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-07-20 13:01:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1218 transitions. [2020-07-20 13:01:53,687 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1218 transitions. Word has length 83 [2020-07-20 13:01:53,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:53,688 INFO L479 AbstractCegarLoop]: Abstraction has 967 states and 1218 transitions. [2020-07-20 13:01:53,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:53,688 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1218 transitions. [2020-07-20 13:01:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-20 13:01:53,691 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:53,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:53,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:53,899 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:53,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1255695016, now seen corresponding path program 1 times [2020-07-20 13:01:53,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:53,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771904967] [2020-07-20 13:01:53,901 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:54,179 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:54,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:54,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 13:01:54,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:54,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:54,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771904967] [2020-07-20 13:01:54,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:54,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:01:54,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012220944] [2020-07-20 13:01:54,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:01:54,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:54,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:01:54,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:01:54,241 INFO L87 Difference]: Start difference. First operand 967 states and 1218 transitions. Second operand 6 states. [2020-07-20 13:01:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:55,200 INFO L93 Difference]: Finished difference Result 3250 states and 4462 transitions. [2020-07-20 13:01:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 13:01:55,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-07-20 13:01:55,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:55,217 INFO L225 Difference]: With dead ends: 3250 [2020-07-20 13:01:55,217 INFO L226 Difference]: Without dead ends: 2311 [2020-07-20 13:01:55,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 13:01:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2020-07-20 13:01:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2105. [2020-07-20 13:01:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2020-07-20 13:01:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2768 transitions. [2020-07-20 13:01:55,364 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2768 transitions. Word has length 87 [2020-07-20 13:01:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:55,364 INFO L479 AbstractCegarLoop]: Abstraction has 2105 states and 2768 transitions. [2020-07-20 13:01:55,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:01:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2768 transitions. [2020-07-20 13:01:55,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-20 13:01:55,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:55,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:55,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:55,582 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:55,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:55,582 INFO L82 PathProgramCache]: Analyzing trace with hash -569523086, now seen corresponding path program 1 times [2020-07-20 13:01:55,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:55,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052600943] [2020-07-20 13:01:55,583 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:56,030 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:56,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:56,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:01:56,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:56,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:56,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052600943] [2020-07-20 13:01:56,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:56,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:01:56,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646836623] [2020-07-20 13:01:56,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:01:56,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:56,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:01:56,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:56,076 INFO L87 Difference]: Start difference. First operand 2105 states and 2768 transitions. Second operand 5 states. [2020-07-20 13:01:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:56,207 INFO L93 Difference]: Finished difference Result 3940 states and 5310 transitions. [2020-07-20 13:01:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:01:56,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-07-20 13:01:56,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:56,221 INFO L225 Difference]: With dead ends: 3940 [2020-07-20 13:01:56,221 INFO L226 Difference]: Without dead ends: 1863 [2020-07-20 13:01:56,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:01:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2020-07-20 13:01:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1863. [2020-07-20 13:01:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1863 states. [2020-07-20 13:01:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2398 transitions. [2020-07-20 13:01:56,341 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2398 transitions. Word has length 83 [2020-07-20 13:01:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:56,343 INFO L479 AbstractCegarLoop]: Abstraction has 1863 states and 2398 transitions. [2020-07-20 13:01:56,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:01:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2398 transitions. [2020-07-20 13:01:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-20 13:01:56,347 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:56,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:56,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:56,562 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:56,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:56,563 INFO L82 PathProgramCache]: Analyzing trace with hash 855595353, now seen corresponding path program 1 times [2020-07-20 13:01:56,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:56,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163403613] [2020-07-20 13:01:56,564 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:56,888 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:56,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:56,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 13:01:56,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:01:56,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:56,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163403613] [2020-07-20 13:01:56,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:56,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:56,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067476357] [2020-07-20 13:01:56,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:56,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:56,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:56,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:56,913 INFO L87 Difference]: Start difference. First operand 1863 states and 2398 transitions. Second operand 3 states. [2020-07-20 13:01:57,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:57,031 INFO L93 Difference]: Finished difference Result 3114 states and 4156 transitions. [2020-07-20 13:01:57,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:57,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-07-20 13:01:57,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:57,052 INFO L225 Difference]: With dead ends: 3114 [2020-07-20 13:01:57,052 INFO L226 Difference]: Without dead ends: 3111 [2020-07-20 13:01:57,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:57,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2020-07-20 13:01:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2855. [2020-07-20 13:01:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-07-20 13:01:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3842 transitions. [2020-07-20 13:01:57,277 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3842 transitions. Word has length 87 [2020-07-20 13:01:57,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:57,278 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3842 transitions. [2020-07-20 13:01:57,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3842 transitions. [2020-07-20 13:01:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 13:01:57,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:57,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:57,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:57,498 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:57,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1109719620, now seen corresponding path program 1 times [2020-07-20 13:01:57,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:57,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213522968] [2020-07-20 13:01:57,500 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:57,803 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:01:57,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:01:57,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:01:57,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:01:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 13:01:57,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:01:57,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213522968] [2020-07-20 13:01:57,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:01:57,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:01:57,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503042339] [2020-07-20 13:01:57,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:01:57,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:01:57,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:01:57,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:57,833 INFO L87 Difference]: Start difference. First operand 2855 states and 3842 transitions. Second operand 3 states. [2020-07-20 13:01:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:01:57,975 INFO L93 Difference]: Finished difference Result 3420 states and 4575 transitions. [2020-07-20 13:01:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:01:57,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-20 13:01:57,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:01:57,984 INFO L225 Difference]: With dead ends: 3420 [2020-07-20 13:01:57,985 INFO L226 Difference]: Without dead ends: 1297 [2020-07-20 13:01:57,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:01:57,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2020-07-20 13:01:58,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1297. [2020-07-20 13:01:58,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1297 states. [2020-07-20 13:01:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1704 transitions. [2020-07-20 13:01:58,078 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1704 transitions. Word has length 127 [2020-07-20 13:01:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:01:58,078 INFO L479 AbstractCegarLoop]: Abstraction has 1297 states and 1704 transitions. [2020-07-20 13:01:58,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:01:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1704 transitions. [2020-07-20 13:01:58,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 13:01:58,082 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:01:58,082 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:01:58,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:58,296 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:01:58,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:01:58,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1738865668, now seen corresponding path program 1 times [2020-07-20 13:01:58,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:01:58,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022074474] [2020-07-20 13:01:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:58,708 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:01:58,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:01:58,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:01:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:01:58,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:01:59,106 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:01:59,106 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:01:59,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:01:59,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:01:59 BoogieIcfgContainer [2020-07-20 13:01:59,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:01:59,579 INFO L168 Benchmark]: Toolchain (without parser) took 13583.89 ms. Allocated memory was 137.9 MB in the beginning and 371.7 MB in the end (delta: 233.8 MB). Free memory was 100.7 MB in the beginning and 289.7 MB in the end (delta: -189.0 MB). Peak memory consumption was 256.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:59,579 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 137.9 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 13:01:59,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.71 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.3 MB in the beginning and 169.2 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:59,581 INFO L168 Benchmark]: Boogie Preprocessor took 91.61 ms. Allocated memory is still 201.3 MB. Free memory was 169.2 MB in the beginning and 165.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:59,581 INFO L168 Benchmark]: RCFGBuilder took 1191.58 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 195.5 MB in the end (delta: -30.3 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:59,583 INFO L168 Benchmark]: TraceAbstraction took 11586.21 ms. Allocated memory was 233.3 MB in the beginning and 371.7 MB in the end (delta: 138.4 MB). Free memory was 195.5 MB in the beginning and 289.7 MB in the end (delta: -94.2 MB). Peak memory consumption was 255.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:01:59,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 137.9 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.71 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.3 MB in the beginning and 169.2 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.61 ms. Allocated memory is still 201.3 MB. Free memory was 169.2 MB in the beginning and 165.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1191.58 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 195.5 MB in the end (delta: -30.3 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11586.21 ms. Allocated memory was 233.3 MB in the beginning and 371.7 MB in the end (delta: 138.4 MB). Free memory was 195.5 MB in the beginning and 289.7 MB in the end (delta: -94.2 MB). Peak memory consumption was 255.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 736]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L655] int methAndRunningLastTime ; [L741] int cleanupTimeShifts = 4; [L839] int waterLevel = 1; [L840] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=72, \old(head)=51, \old(head)=34, \old(methAndRunningLastTime)=64, \old(methaneLevelCritical)=43, \old(pumpRunning)=78, \old(systemActive)=35, \old(waterLevel)=52, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] int retValue_acc ; [L816] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L820] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L821] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L723] int retValue_acc ; [L726] retValue_acc = 1 [L727] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L822] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L822] tmp = valid_product() [L824] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L826] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L827] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L808] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L660] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L808] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L809] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] int splverifierCounter ; [L589] int tmp ; [L590] int tmp___0 ; [L591] int tmp___1 ; [L592] int tmp___2 ; [L595] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L597] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L599] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L605] tmp = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L609] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] COND TRUE waterLevel < 2 [L858] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L609] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L619] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] COND FALSE !(\read(methaneLevelCritical)) [L872] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L642] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L424] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L433] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L453] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L456] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L550] int retValue_acc ; [L551] int tmp ; [L552] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L919] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L922] COND FALSE !(waterLevel < 2) [L926] retValue_acc = 0 [L927] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L556] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp = isHighWaterSensorDry() [L558] COND FALSE !(\read(tmp)) [L561] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L563] retValue_acc = tmp___0 [L564] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L458] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] tmp = isHighWaterLevel() [L460] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L462] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L481] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L462] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L433] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L439] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L665] int tmp ; [L666] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L670] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L670] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L674] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L674] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L677] COND FALSE !(\read(methAndRunningLastTime)) [L682] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L439] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L642] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L597] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L599] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L605] tmp = __VERIFIER_nondet_int() [L607] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=2] [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L642] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L424] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L426] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] COND TRUE waterLevel > 0 [L846] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L426] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L453] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L456] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L439] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L665] int tmp ; [L666] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L670] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L674] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L674] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L677] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L679] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L736] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 226 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.2s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1590 SDtfs, 738 SDslu, 2408 SDs, 0 SdLazy, 670 SolverSat, 180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 834 GetRequests, 800 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2855occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 487 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 966 NumberOfCodeBlocks, 869 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 826 ConstructedInterpolants, 0 QuantifiedInterpolants, 111090 SizeOfPredicates, 27 NumberOfNonLiveVariables, 7938 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 26/26 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...