/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_VARIABLES --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_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:22:20,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:22:20,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:22:20,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:22:20,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:22:20,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:22:20,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:22:20,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:22:20,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:22:20,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:22:20,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:22:20,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:22:20,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:22:20,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:22:20,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:22:20,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:22:20,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:22:20,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:22:20,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:22:20,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:22:20,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:22:20,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:22:20,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:22:20,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:22:20,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:22:20,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:22:20,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:22:20,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:22:20,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:22:20,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:22:20,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:22:20,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:22:20,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:22:20,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:22:20,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:22:20,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:22:20,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:22:20,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:22:20,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:22:20,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:22:20,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:22:20,997 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 16:22:21,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:22:21,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:22:21,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:22:21,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:22:21,037 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:22:21,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:22:21,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:22:21,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:22:21,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:22:21,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:22:21,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:22:21,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:22:21,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:22:21,044 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:22:21,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:22:21,045 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:22:21,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:22:21,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:22:21,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:22:21,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:22:21,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:22:21,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:22:21,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:22:21,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:22:21,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:22:21,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:22:21,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:21,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:22:21,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:22:21,048 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_VARIABLES 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 16:22:21,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:22:21,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:22:21,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:22:21,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:22:21,405 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:22:21,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-07-20 16:22:21,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dced909f/f4d70fc6f5494d84a3f6d9ef59d0a63b/FLAG6e19b6f41 [2020-07-20 16:22:22,010 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:22:22,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-07-20 16:22:22,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dced909f/f4d70fc6f5494d84a3f6d9ef59d0a63b/FLAG6e19b6f41 [2020-07-20 16:22:22,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dced909f/f4d70fc6f5494d84a3f6d9ef59d0a63b [2020-07-20 16:22:22,333 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:22:22,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:22:22,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:22:22,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:22:22,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:22:22,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:22:22" (1/1) ... [2020-07-20 16:22:22,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb6ae03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:22, skipping insertion in model container [2020-07-20 16:22:22,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:22:22" (1/1) ... [2020-07-20 16:22:22,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:22:22,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:22:22,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:22:22,934 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:22:23,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:22:23,098 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:22:23,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23 WrapperNode [2020-07-20 16:22:23,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:22:23,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:22:23,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:22:23,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:22:23,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (1/1) ... [2020-07-20 16:22:23,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (1/1) ... [2020-07-20 16:22:23,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (1/1) ... [2020-07-20 16:22:23,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (1/1) ... [2020-07-20 16:22:23,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (1/1) ... [2020-07-20 16:22:23,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (1/1) ... [2020-07-20 16:22:23,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (1/1) ... [2020-07-20 16:22:23,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:22:23,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:22:23,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:22:23,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:22:23,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (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 16:22:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:22:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:22:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:22:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:22:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:22:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:22:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:22:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:22:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:22:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:22:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:22:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:22:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:22:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:22:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:22:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:22:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:22:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:22:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:22:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:22:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:22:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:22:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:22:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:22:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:22:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:22:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:22:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:22:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:22:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:22:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:22:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:22:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:22:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:22:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:22:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:22:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:22:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:22:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:22:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:22:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:22:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:22:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:22:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:22:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:22:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:22:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:22:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:22:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:22:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:22:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:22:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:22:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:22:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:22:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:22:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:22:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-20 16:22:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:22:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:22:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:22:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:22:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:22:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:22:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:22:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:22:23,258 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:22:23,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:22:23,259 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:22:23,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:22:23,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:22:23,259 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:22:23,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:22:23,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:22:23,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:22:24,336 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:22:24,337 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:22:24,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:22:24 BoogieIcfgContainer [2020-07-20 16:22:24,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:22:24,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:22:24,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:22:24,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:22:24,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:22:22" (1/3) ... [2020-07-20 16:22:24,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31165143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:22:24, skipping insertion in model container [2020-07-20 16:22:24,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:23" (2/3) ... [2020-07-20 16:22:24,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31165143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:22:24, skipping insertion in model container [2020-07-20 16:22:24,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:22:24" (3/3) ... [2020-07-20 16:22:24,350 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-07-20 16:22:24,361 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:22:24,370 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:22:24,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:22:24,410 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:22:24,410 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:22:24,410 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:22:24,410 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:22:24,411 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:22:24,411 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:22:24,411 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:22:24,411 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:22:24,435 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-07-20 16:22:24,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 16:22:24,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:24,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:24,447 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:24,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:24,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1904787813, now seen corresponding path program 1 times [2020-07-20 16:22:24,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:24,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301467576] [2020-07-20 16:22:24,464 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 16:22:24,974 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:24,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:24,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:22:24,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:25,018 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 16:22:25,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:25,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301467576] [2020-07-20 16:22:25,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:25,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:22:25,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341217432] [2020-07-20 16:22:25,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:22:25,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:25,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:22:25,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:22:25,048 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2020-07-20 16:22:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:25,095 INFO L93 Difference]: Finished difference Result 234 states and 291 transitions. [2020-07-20 16:22:25,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:22:25,097 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 16:22:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:25,111 INFO L225 Difference]: With dead ends: 234 [2020-07-20 16:22:25,111 INFO L226 Difference]: Without dead ends: 117 [2020-07-20 16:22:25,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 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 16:22:25,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-07-20 16:22:25,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-07-20 16:22:25,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-20 16:22:25,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 137 transitions. [2020-07-20 16:22:25,187 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 137 transitions. Word has length 46 [2020-07-20 16:22:25,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:25,188 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 137 transitions. [2020-07-20 16:22:25,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:22:25,189 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 137 transitions. [2020-07-20 16:22:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 16:22:25,192 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:25,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:25,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:25,406 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:25,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:25,407 INFO L82 PathProgramCache]: Analyzing trace with hash -8679295, now seen corresponding path program 1 times [2020-07-20 16:22:25,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:25,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471388867] [2020-07-20 16:22:25,409 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 16:22:25,929 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:25,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:25,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:22:25,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:25,978 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 16:22:25,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:25,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471388867] [2020-07-20 16:22:25,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:25,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:25,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534097747] [2020-07-20 16:22:25,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:25,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:25,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:25,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:25,983 INFO L87 Difference]: Start difference. First operand 117 states and 137 transitions. Second operand 3 states. [2020-07-20 16:22:26,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:26,005 INFO L93 Difference]: Finished difference Result 183 states and 213 transitions. [2020-07-20 16:22:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:26,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 16:22:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:26,012 INFO L225 Difference]: With dead ends: 183 [2020-07-20 16:22:26,012 INFO L226 Difference]: Without dead ends: 108 [2020-07-20 16:22:26,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 16:22:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-07-20 16:22:26,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-07-20 16:22:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-07-20 16:22:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2020-07-20 16:22:26,027 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 47 [2020-07-20 16:22:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:26,028 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2020-07-20 16:22:26,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2020-07-20 16:22:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:22:26,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:26,030 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 16:22:26,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:26,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:26,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:26,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1364944070, now seen corresponding path program 1 times [2020-07-20 16:22:26,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:26,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895844650] [2020-07-20 16:22:26,249 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 16:22:26,652 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:26,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:26,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:22:26,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:26,678 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 16:22:26,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:26,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895844650] [2020-07-20 16:22:26,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:26,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:26,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591542816] [2020-07-20 16:22:26,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:26,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:26,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:26,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:26,682 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 3 states. [2020-07-20 16:22:26,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:26,710 INFO L93 Difference]: Finished difference Result 192 states and 227 transitions. [2020-07-20 16:22:26,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:26,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 16:22:26,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:26,713 INFO L225 Difference]: With dead ends: 192 [2020-07-20 16:22:26,714 INFO L226 Difference]: Without dead ends: 108 [2020-07-20 16:22:26,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 16:22:26,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-07-20 16:22:26,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-07-20 16:22:26,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-07-20 16:22:26,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 124 transitions. [2020-07-20 16:22:26,731 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 124 transitions. Word has length 51 [2020-07-20 16:22:26,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:26,731 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 124 transitions. [2020-07-20 16:22:26,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:26,731 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2020-07-20 16:22:26,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 16:22:26,733 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:26,734 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] [2020-07-20 16:22:26,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:26,943 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:26,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:26,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1317252167, now seen corresponding path program 1 times [2020-07-20 16:22:26,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:26,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588404980] [2020-07-20 16:22:26,945 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 16:22:27,511 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:27,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:27,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:22:27,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:27,562 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 16:22:27,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:27,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588404980] [2020-07-20 16:22:27,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:27,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:27,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998530979] [2020-07-20 16:22:27,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:27,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:27,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:27,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:27,566 INFO L87 Difference]: Start difference. First operand 108 states and 124 transitions. Second operand 6 states. [2020-07-20 16:22:28,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:28,090 INFO L93 Difference]: Finished difference Result 247 states and 292 transitions. [2020-07-20 16:22:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:22:28,090 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-07-20 16:22:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:28,093 INFO L225 Difference]: With dead ends: 247 [2020-07-20 16:22:28,093 INFO L226 Difference]: Without dead ends: 163 [2020-07-20 16:22:28,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:22:28,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-07-20 16:22:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2020-07-20 16:22:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-20 16:22:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 182 transitions. [2020-07-20 16:22:28,114 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 182 transitions. Word has length 59 [2020-07-20 16:22:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:28,115 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 182 transitions. [2020-07-20 16:22:28,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 182 transitions. [2020-07-20 16:22:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-20 16:22:28,118 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:28,118 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] [2020-07-20 16:22:28,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:28,334 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:28,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:28,335 INFO L82 PathProgramCache]: Analyzing trace with hash 19293366, now seen corresponding path program 1 times [2020-07-20 16:22:28,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:28,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384740054] [2020-07-20 16:22:28,336 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 16:22:28,711 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:28,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:28,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:22:28,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:28,762 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 16:22:28,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:28,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384740054] [2020-07-20 16:22:28,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:28,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:28,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792637547] [2020-07-20 16:22:28,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:28,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:28,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:28,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:28,768 INFO L87 Difference]: Start difference. First operand 160 states and 182 transitions. Second operand 6 states. [2020-07-20 16:22:28,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:28,990 INFO L93 Difference]: Finished difference Result 167 states and 189 transitions. [2020-07-20 16:22:28,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:22:28,992 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-07-20 16:22:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:28,997 INFO L225 Difference]: With dead ends: 167 [2020-07-20 16:22:28,997 INFO L226 Difference]: Without dead ends: 164 [2020-07-20 16:22:28,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 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 16:22:28,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-07-20 16:22:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2020-07-20 16:22:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-20 16:22:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 181 transitions. [2020-07-20 16:22:29,032 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 181 transitions. Word has length 73 [2020-07-20 16:22:29,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:29,032 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 181 transitions. [2020-07-20 16:22:29,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:29,032 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 181 transitions. [2020-07-20 16:22:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-20 16:22:29,037 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:29,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:29,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:29,240 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:29,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:29,241 INFO L82 PathProgramCache]: Analyzing trace with hash 109129645, now seen corresponding path program 1 times [2020-07-20 16:22:29,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:29,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029630355] [2020-07-20 16:22:29,242 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 16:22:29,590 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:29,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:29,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:22:29,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:29,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:29,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029630355] [2020-07-20 16:22:29,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:29,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:29,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516272738] [2020-07-20 16:22:29,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:29,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:29,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:29,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:29,631 INFO L87 Difference]: Start difference. First operand 160 states and 181 transitions. Second operand 6 states. [2020-07-20 16:22:29,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:29,669 INFO L93 Difference]: Finished difference Result 303 states and 350 transitions. [2020-07-20 16:22:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:22:29,673 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2020-07-20 16:22:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:29,677 INFO L225 Difference]: With dead ends: 303 [2020-07-20 16:22:29,677 INFO L226 Difference]: Without dead ends: 167 [2020-07-20 16:22:29,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 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 16:22:29,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-07-20 16:22:29,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2020-07-20 16:22:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-07-20 16:22:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2020-07-20 16:22:29,716 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 89 [2020-07-20 16:22:29,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:29,716 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2020-07-20 16:22:29,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2020-07-20 16:22:29,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-20 16:22:29,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:29,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:29,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:29,932 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:29,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:29,933 INFO L82 PathProgramCache]: Analyzing trace with hash -788263633, now seen corresponding path program 1 times [2020-07-20 16:22:29,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:29,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426917923] [2020-07-20 16:22:29,935 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 16:22:30,091 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:22:30,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:30,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:22:30,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:30,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:30,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426917923] [2020-07-20 16:22:30,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:30,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:22:30,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142497560] [2020-07-20 16:22:30,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:22:30,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:30,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:22:30,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:22:30,135 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand 5 states. [2020-07-20 16:22:30,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:30,156 INFO L93 Difference]: Finished difference Result 313 states and 361 transitions. [2020-07-20 16:22:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:22:30,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-07-20 16:22:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:30,159 INFO L225 Difference]: With dead ends: 313 [2020-07-20 16:22:30,159 INFO L226 Difference]: Without dead ends: 172 [2020-07-20 16:22:30,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 16:22:30,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-07-20 16:22:30,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-07-20 16:22:30,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-07-20 16:22:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 190 transitions. [2020-07-20 16:22:30,174 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 190 transitions. Word has length 89 [2020-07-20 16:22:30,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:30,174 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 190 transitions. [2020-07-20 16:22:30,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:22:30,174 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 190 transitions. [2020-07-20 16:22:30,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-20 16:22:30,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:30,177 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:30,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:30,391 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:30,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:30,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1182675824, now seen corresponding path program 1 times [2020-07-20 16:22:30,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:30,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460725423] [2020-07-20 16:22:30,393 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 16:22:30,709 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:30,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:30,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:22:30,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:30,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:30,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460725423] [2020-07-20 16:22:30,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:30,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:30,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207785557] [2020-07-20 16:22:30,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:30,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:30,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:30,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:30,758 INFO L87 Difference]: Start difference. First operand 169 states and 190 transitions. Second operand 3 states. [2020-07-20 16:22:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:30,802 INFO L93 Difference]: Finished difference Result 419 states and 494 transitions. [2020-07-20 16:22:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:30,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-07-20 16:22:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:30,808 INFO L225 Difference]: With dead ends: 419 [2020-07-20 16:22:30,808 INFO L226 Difference]: Without dead ends: 274 [2020-07-20 16:22:30,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 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 16:22:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-20 16:22:30,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2020-07-20 16:22:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-07-20 16:22:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 314 transitions. [2020-07-20 16:22:30,843 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 314 transitions. Word has length 89 [2020-07-20 16:22:30,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:30,843 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 314 transitions. [2020-07-20 16:22:30,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 314 transitions. [2020-07-20 16:22:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 16:22:30,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:30,846 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:31,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:31,061 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:31,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:31,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2015640170, now seen corresponding path program 1 times [2020-07-20 16:22:31,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:31,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501005232] [2020-07-20 16:22:31,063 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 16:22:31,466 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:31,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:31,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-20 16:22:31,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:31,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:31,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501005232] [2020-07-20 16:22:31,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:31,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-20 16:22:31,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067528926] [2020-07-20 16:22:31,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 16:22:31,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:31,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 16:22:31,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-20 16:22:31,554 INFO L87 Difference]: Start difference. First operand 271 states and 314 transitions. Second operand 11 states. [2020-07-20 16:22:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:32,206 INFO L93 Difference]: Finished difference Result 733 states and 886 transitions. [2020-07-20 16:22:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 16:22:32,207 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-07-20 16:22:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:32,211 INFO L225 Difference]: With dead ends: 733 [2020-07-20 16:22:32,211 INFO L226 Difference]: Without dead ends: 486 [2020-07-20 16:22:32,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-20 16:22:32,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-07-20 16:22:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 478. [2020-07-20 16:22:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-20 16:22:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 560 transitions. [2020-07-20 16:22:32,248 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 560 transitions. Word has length 93 [2020-07-20 16:22:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:32,249 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 560 transitions. [2020-07-20 16:22:32,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 16:22:32,249 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 560 transitions. [2020-07-20 16:22:32,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-20 16:22:32,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:32,253 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:32,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:32,467 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:32,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:32,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1443410571, now seen corresponding path program 1 times [2020-07-20 16:22:32,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:32,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981357446] [2020-07-20 16:22:32,468 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 16:22:32,803 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:32,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:32,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:22:32,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 16:22:32,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:32,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981357446] [2020-07-20 16:22:32,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:32,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:22:32,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889687742] [2020-07-20 16:22:32,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:22:32,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:32,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:22:32,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:32,907 INFO L87 Difference]: Start difference. First operand 478 states and 560 transitions. Second operand 8 states. [2020-07-20 16:22:33,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:33,340 INFO L93 Difference]: Finished difference Result 932 states and 1096 transitions. [2020-07-20 16:22:33,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:22:33,341 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-07-20 16:22:33,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:33,346 INFO L225 Difference]: With dead ends: 932 [2020-07-20 16:22:33,346 INFO L226 Difference]: Without dead ends: 478 [2020-07-20 16:22:33,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:33,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-07-20 16:22:33,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2020-07-20 16:22:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-20 16:22:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 548 transitions. [2020-07-20 16:22:33,381 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 548 transitions. Word has length 136 [2020-07-20 16:22:33,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:33,381 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 548 transitions. [2020-07-20 16:22:33,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:22:33,382 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 548 transitions. [2020-07-20 16:22:33,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 16:22:33,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:33,384 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:33,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:33,598 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:33,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:33,598 INFO L82 PathProgramCache]: Analyzing trace with hash 263608825, now seen corresponding path program 1 times [2020-07-20 16:22:33,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:33,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405643989] [2020-07-20 16:22:33,599 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 16:22:33,968 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:33,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:33,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 16:22:33,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:34,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:34,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405643989] [2020-07-20 16:22:34,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:34,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:22:34,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953112594] [2020-07-20 16:22:34,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:22:34,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:34,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:22:34,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:22:34,037 INFO L87 Difference]: Start difference. First operand 478 states and 548 transitions. Second operand 5 states. [2020-07-20 16:22:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:34,584 INFO L93 Difference]: Finished difference Result 1087 states and 1285 transitions. [2020-07-20 16:22:34,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:22:34,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-07-20 16:22:34,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:34,590 INFO L225 Difference]: With dead ends: 1087 [2020-07-20 16:22:34,590 INFO L226 Difference]: Without dead ends: 633 [2020-07-20 16:22:34,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:34,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-07-20 16:22:34,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 619. [2020-07-20 16:22:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-07-20 16:22:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 716 transitions. [2020-07-20 16:22:34,644 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 716 transitions. Word has length 132 [2020-07-20 16:22:34,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:34,645 INFO L479 AbstractCegarLoop]: Abstraction has 619 states and 716 transitions. [2020-07-20 16:22:34,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:22:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 716 transitions. [2020-07-20 16:22:34,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 16:22:34,647 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:34,648 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:34,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:34,862 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:34,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:34,863 INFO L82 PathProgramCache]: Analyzing trace with hash 773081915, now seen corresponding path program 1 times [2020-07-20 16:22:34,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:34,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140244567] [2020-07-20 16:22:34,864 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 16:22:35,212 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:35,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 16:22:35,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:22:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 16:22:35,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:22:35,720 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 16:22:35,720 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 16:22:35,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:36,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:22:36 BoogieIcfgContainer [2020-07-20 16:22:36,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:22:36,157 INFO L168 Benchmark]: Toolchain (without parser) took 13820.23 ms. Allocated memory was 147.3 MB in the beginning and 332.9 MB in the end (delta: 185.6 MB). Free memory was 104.2 MB in the beginning and 279.8 MB in the end (delta: -175.6 MB). Peak memory consumption was 199.5 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:36,165 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 16:22:36,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.17 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 103.8 MB in the beginning and 170.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:36,173 INFO L168 Benchmark]: Boogie Preprocessor took 88.58 ms. Allocated memory is still 203.4 MB. Free memory was 170.9 MB in the beginning and 167.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:36,177 INFO L168 Benchmark]: RCFGBuilder took 1154.39 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 191.9 MB in the end (delta: -24.9 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:36,178 INFO L168 Benchmark]: TraceAbstraction took 11809.80 ms. Allocated memory was 234.9 MB in the beginning and 332.9 MB in the end (delta: 98.0 MB). Free memory was 191.9 MB in the beginning and 279.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 199.6 MB. Max. memory is 7.1 GB. [2020-07-20 16:22:36,183 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.17 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 103.8 MB in the beginning and 170.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.58 ms. Allocated memory is still 203.4 MB. Free memory was 170.9 MB in the beginning and 167.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1154.39 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 191.9 MB in the end (delta: -24.9 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11809.80 ms. Allocated memory was 234.9 MB in the beginning and 332.9 MB in the end (delta: 98.0 MB). Free memory was 191.9 MB in the beginning and 279.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 199.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 887]: 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; [L480] int waterLevel = 1; [L481] int methaneLevelCritical = 0; [L578] int pumpRunning = 0; [L579] int systemActive = 1; [L749] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=81, \old(head)=28, \old(head)=43, \old(methaneLevelCritical)=64, \old(pumpRunning)=86, \old(systemActive)=29, \old(waterLevel)=45, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; [L826] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L830] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L831] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L874] int retValue_acc ; [L877] retValue_acc = 1 [L878] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L832] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L836] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L837] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L816] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L420] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L428] tmp = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L432] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L498] COND TRUE waterLevel < 2 [L499] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L463] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] int retValue_acc ; [L731] int tmp ; [L732] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(waterLevel < 2) [L567] retValue_acc = 0 [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L736] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp = isHighWaterSensorDry() [L738] COND FALSE !(\read(tmp)) [L741] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L743] retValue_acc = tmp___0 [L744] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L620] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] tmp = isHighWaterLevel() [L622] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L624] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L649] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L674] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L678] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] retValue_acc = isMethaneLevelCritical() [L680] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L653] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] tmp = isMethaneAlarm() [L655] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L659] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L659] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L624] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L595] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L601] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L893] int tmp ; [L894] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L898] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] tmp = isMethaneLevelCritical() [L900] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L601] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L463] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L420] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L422] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L442] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND FALSE !(\read(methaneLevelCritical)) [L513] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L442] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L463] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L586] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L486] COND TRUE waterLevel > 0 [L487] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L588] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L593] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L615] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L618] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L633] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L601] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] int tmp ; [L894] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L898] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] tmp = isMethaneLevelCritical() [L900] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L685] int retValue_acc ; [L688] retValue_acc = pumpRunning [L689] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L902] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] tmp___0 = isPumpRunning() [L904] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L906] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L887] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 222 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.5s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1594 SDtfs, 741 SDslu, 3220 SDs, 0 SdLazy, 1249 SolverSat, 207 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 906 GetRequests, 857 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=619occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 37 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1036 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 893 ConstructedInterpolants, 0 QuantifiedInterpolants, 137419 SizeOfPredicates, 22 NumberOfNonLiveVariables, 7296 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 76/76 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...