/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_spec3_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:24:22,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:24:22,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:24:22,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:24:22,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:24:22,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:24:22,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:24:22,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:24:22,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:24:22,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:24:22,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:24:22,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:24:22,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:24:22,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:24:22,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:24:22,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:24:22,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:24:22,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:24:22,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:24:22,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:24:22,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:24:22,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:24:22,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:24:22,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:24:22,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:24:22,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:24:22,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:24:22,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:24:22,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:24:22,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:24:22,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:24:22,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:24:22,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:24:22,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:24:22,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:24:22,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:24:22,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:24:22,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:24:22,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:24:22,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:24:23,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:24:23,000 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 16:24:23,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:24:23,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:24:23,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:24:23,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:24:23,037 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:24:23,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:24:23,037 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:24:23,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:24:23,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:24:23,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:24:23,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:24:23,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:24:23,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:24:23,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:24:23,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:24:23,039 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:24:23,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:24:23,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:24:23,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:24:23,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:24:23,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:24:23,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:24:23,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:24:23,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:24:23,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:24:23,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:24:23,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:23,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:24:23,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:24:23,044 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 16:24:23,340 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:24:23,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:24:23,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:24:23,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:24:23,359 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:24:23,360 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-07-20 16:24:23,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d5eb66b4/3aa0c077a86b4393b63c28aec911bae8/FLAG2db0648a7 [2020-07-20 16:24:23,967 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:24:23,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-07-20 16:24:23,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d5eb66b4/3aa0c077a86b4393b63c28aec911bae8/FLAG2db0648a7 [2020-07-20 16:24:24,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d5eb66b4/3aa0c077a86b4393b63c28aec911bae8 [2020-07-20 16:24:24,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:24:24,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:24:24,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:24:24,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:24:24,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:24:24,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:24,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a81ee7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24, skipping insertion in model container [2020-07-20 16:24:24,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:24,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:24:24,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:24:24,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:24:24,803 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:24:24,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:24:24,960 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:24:24,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24 WrapperNode [2020-07-20 16:24:24,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:24:24,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:24:24,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:24:24,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:24:24,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:24,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:24,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:24,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:25,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:25,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:25,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (1/1) ... [2020-07-20 16:24:25,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:24:25,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:24:25,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:24:25,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:24:25,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (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 16:24:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:24:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:24:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:24:25,116 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:24:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:24:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:24:25,117 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:24:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:24:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:24:25,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:24:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:24:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:24:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 16:24:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:24:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:24:25,120 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:24:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:24:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:24:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:24:25,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:24:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:24:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:24:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:24:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:24:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:24:25,125 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:24:25,125 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:24:25,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:24:25,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:24:25,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:24:25,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:24:25,126 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 16:24:25,126 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 16:24:25,126 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:24:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:24:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:24:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:24:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:24:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:24:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:24:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:24:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:24:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:24:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:24:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:24:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:24:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:24:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:24:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:24:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:24:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:24:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:24:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:24:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:24:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 16:24:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:24:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:24:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:24:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:24:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:24:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:24:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:24:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:24:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:24:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:24:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:24:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:24:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:24:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:24:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:24:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:24:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:24:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:24:26,249 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:24:26,249 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:24:26,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:26 BoogieIcfgContainer [2020-07-20 16:24:26,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:24:26,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:24:26,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:24:26,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:24:26,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:24:24" (1/3) ... [2020-07-20 16:24:26,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cbff135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:26, skipping insertion in model container [2020-07-20 16:24:26,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:24" (2/3) ... [2020-07-20 16:24:26,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cbff135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:26, skipping insertion in model container [2020-07-20 16:24:26,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:26" (3/3) ... [2020-07-20 16:24:26,263 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-07-20 16:24:26,274 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:24:26,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:24:26,297 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:24:26,322 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:24:26,322 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:24:26,322 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:24:26,322 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:24:26,323 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:24:26,323 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:24:26,323 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:24:26,323 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:24:26,346 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-07-20 16:24:26,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 16:24:26,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:26,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:24:26,357 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:26,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1613949641, now seen corresponding path program 1 times [2020-07-20 16:24:26,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:26,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40842475] [2020-07-20 16:24:26,373 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 16:24:26,914 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:24:26,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:26,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:24:26,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:26,964 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 16:24:26,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:26,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40842475] [2020-07-20 16:24:26,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:26,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:24:26,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262604279] [2020-07-20 16:24:26,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:24:26,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:26,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:24:26,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:24:26,990 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 2 states. [2020-07-20 16:24:27,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:27,033 INFO L93 Difference]: Finished difference Result 278 states and 345 transitions. [2020-07-20 16:24:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:24:27,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 16:24:27,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:27,047 INFO L225 Difference]: With dead ends: 278 [2020-07-20 16:24:27,048 INFO L226 Difference]: Without dead ends: 139 [2020-07-20 16:24:27,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:24:27,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-20 16:24:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-07-20 16:24:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-20 16:24:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2020-07-20 16:24:27,107 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 52 [2020-07-20 16:24:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:27,108 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2020-07-20 16:24:27,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:24:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2020-07-20 16:24:27,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 16:24:27,112 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:27,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:24:27,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:27,327 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:27,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:27,327 INFO L82 PathProgramCache]: Analyzing trace with hash -404683850, now seen corresponding path program 1 times [2020-07-20 16:24:27,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:27,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718009638] [2020-07-20 16:24:27,328 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 16:24:27,808 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:24:27,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:27,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:24:27,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:27,852 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 16:24:27,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:27,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718009638] [2020-07-20 16:24:27,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:27,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:24:27,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468747658] [2020-07-20 16:24:27,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:24:27,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:27,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:24:27,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:24:27,857 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 3 states. [2020-07-20 16:24:27,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:27,883 INFO L93 Difference]: Finished difference Result 217 states and 255 transitions. [2020-07-20 16:24:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:24:27,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 16:24:27,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:27,887 INFO L225 Difference]: With dead ends: 217 [2020-07-20 16:24:27,887 INFO L226 Difference]: Without dead ends: 130 [2020-07-20 16:24:27,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:24:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-07-20 16:24:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-07-20 16:24:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-07-20 16:24:27,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2020-07-20 16:24:27,904 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 53 [2020-07-20 16:24:27,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:27,904 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2020-07-20 16:24:27,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:24:27,905 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2020-07-20 16:24:27,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 16:24:27,907 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:27,907 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] [2020-07-20 16:24:28,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:28,123 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:28,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:28,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1069064851, now seen corresponding path program 1 times [2020-07-20 16:24:28,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:28,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996899699] [2020-07-20 16:24:28,125 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 16:24:28,588 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:24:28,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:28,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 16:24:28,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:28,632 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 16:24:28,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:28,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996899699] [2020-07-20 16:24:28,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:28,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:24:28,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576462417] [2020-07-20 16:24:28,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:24:28,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:28,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:24:28,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:24:28,636 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 3 states. [2020-07-20 16:24:28,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:28,672 INFO L93 Difference]: Finished difference Result 338 states and 407 transitions. [2020-07-20 16:24:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:24:28,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-20 16:24:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:28,676 INFO L225 Difference]: With dead ends: 338 [2020-07-20 16:24:28,677 INFO L226 Difference]: Without dead ends: 232 [2020-07-20 16:24:28,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 16:24:28,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-07-20 16:24:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 226. [2020-07-20 16:24:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-20 16:24:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 271 transitions. [2020-07-20 16:24:28,706 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 271 transitions. Word has length 58 [2020-07-20 16:24:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:28,707 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 271 transitions. [2020-07-20 16:24:28,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:24:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 271 transitions. [2020-07-20 16:24:28,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 16:24:28,710 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:28,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:24:28,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:28,925 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:28,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:28,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1575246874, now seen corresponding path program 1 times [2020-07-20 16:24:28,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:28,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770661712] [2020-07-20 16:24:28,928 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 16:24:29,466 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:24:29,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:29,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 16:24:29,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:29,526 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 16:24:29,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:29,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770661712] [2020-07-20 16:24:29,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:29,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:24:29,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147801275] [2020-07-20 16:24:29,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:24:29,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:29,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:24:29,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:24:29,529 INFO L87 Difference]: Start difference. First operand 226 states and 271 transitions. Second operand 6 states. [2020-07-20 16:24:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:29,792 INFO L93 Difference]: Finished difference Result 615 states and 783 transitions. [2020-07-20 16:24:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:24:29,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 16:24:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:29,797 INFO L225 Difference]: With dead ends: 615 [2020-07-20 16:24:29,798 INFO L226 Difference]: Without dead ends: 413 [2020-07-20 16:24:29,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:24:29,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-20 16:24:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 409. [2020-07-20 16:24:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-07-20 16:24:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 508 transitions. [2020-07-20 16:24:29,841 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 508 transitions. Word has length 63 [2020-07-20 16:24:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:29,842 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 508 transitions. [2020-07-20 16:24:29,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:24:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 508 transitions. [2020-07-20 16:24:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 16:24:29,846 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:29,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:24:30,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:30,061 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:30,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:30,062 INFO L82 PathProgramCache]: Analyzing trace with hash 730381356, now seen corresponding path program 1 times [2020-07-20 16:24:30,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:30,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059123061] [2020-07-20 16:24:30,064 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 16:24:30,420 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:24:30,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 16:24:30,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:24:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 16:24:30,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:24:30,736 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 16:24:30,736 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 16:24:30,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:31,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:24:31 BoogieIcfgContainer [2020-07-20 16:24:31,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:24:31,152 INFO L168 Benchmark]: Toolchain (without parser) took 6872.81 ms. Allocated memory was 146.3 MB in the beginning and 280.5 MB in the end (delta: 134.2 MB). Free memory was 102.3 MB in the beginning and 187.7 MB in the end (delta: -85.3 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:31,156 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 16:24:31,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.41 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 172.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:31,161 INFO L168 Benchmark]: Boogie Preprocessor took 93.68 ms. Allocated memory is still 204.5 MB. Free memory was 172.4 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:31,165 INFO L168 Benchmark]: RCFGBuilder took 1199.85 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 195.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:31,166 INFO L168 Benchmark]: TraceAbstraction took 4890.45 ms. Allocated memory was 236.5 MB in the beginning and 280.5 MB in the end (delta: 44.0 MB). Free memory was 195.7 MB in the beginning and 187.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:31,175 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.41 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 172.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.68 ms. Allocated memory is still 204.5 MB. Free memory was 172.4 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1199.85 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 195.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4890.45 ms. Allocated memory was 236.5 MB in the beginning and 280.5 MB in the end (delta: 44.0 MB). Free memory was 195.7 MB in the beginning and 187.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=96, \old(head)=66, \old(head)=94, \old(methaneLevelCritical)=48, \old(pumpRunning)=38, \old(systemActive)=72, \old(waterLevel)=31, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L538] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L540] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L550] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L578] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L578] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L585] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L341] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L349] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L190] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L196] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L196] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L200] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L200] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L206] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 697 SDtfs, 218 SDslu, 802 SDs, 0 SdLazy, 100 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 293 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2635 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...