/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_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:24:06,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:24:06,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:24:06,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:24:06,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:24:06,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:24:06,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:24:06,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:24:06,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:24:06,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:24:06,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:24:06,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:24:06,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:24:06,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:24:06,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:24:06,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:24:06,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:24:06,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:24:06,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:24:06,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:24:06,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:24:06,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:24:06,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:24:06,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:24:06,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:24:06,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:24:06,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:24:06,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:24:06,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:24:06,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:24:06,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:24:06,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:24:06,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:24:06,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:24:06,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:24:06,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:24:06,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:24:06,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:24:06,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:24:06,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:24:06,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:24:06,140 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 16:24:06,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:24:06,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:24:06,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:24:06,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:24:06,168 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:24:06,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:24:06,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:24:06,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:24:06,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:24:06,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:24:06,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:24:06,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:24:06,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:24:06,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:24:06,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:24:06,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:24:06,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:24:06,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:24:06,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:24:06,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:24:06,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:24:06,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:24:06,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:24:06,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:24:06,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:24:06,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:24:06,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:06,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:24:06,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:24:06,175 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 16:24:06,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:24:06,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:24:06,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:24:06,482 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:24:06,482 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:24:06,483 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-07-20 16:24:06,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e94ff4dcc/f5cd7b7c28604ae9804340adb119d50d/FLAGba5018e5d [2020-07-20 16:24:07,090 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:24:07,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-07-20 16:24:07,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e94ff4dcc/f5cd7b7c28604ae9804340adb119d50d/FLAGba5018e5d [2020-07-20 16:24:07,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e94ff4dcc/f5cd7b7c28604ae9804340adb119d50d [2020-07-20 16:24:07,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:24:07,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:24:07,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:24:07,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:24:07,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:24:07,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:07" (1/1) ... [2020-07-20 16:24:07,387 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 04:24:07, skipping insertion in model container [2020-07-20 16:24:07,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:24:07" (1/1) ... [2020-07-20 16:24:07,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:24:07,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:24:07,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:24:07,896 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:24:07,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:24:08,016 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:24:08,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08 WrapperNode [2020-07-20 16:24:08,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:24:08,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:24:08,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:24:08,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:24:08,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... [2020-07-20 16:24:08,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... [2020-07-20 16:24:08,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... [2020-07-20 16:24:08,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... [2020-07-20 16:24:08,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... [2020-07-20 16:24:08,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... [2020-07-20 16:24:08,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... [2020-07-20 16:24:08,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:24:08,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:24:08,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:24:08,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:24:08,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:24:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:24:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:24:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:24:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:24:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:24:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:24:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-20 16:24:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:24:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:24:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:24:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:24:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:24:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 16:24:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:24:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:24:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:24:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:24:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:24:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:24:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:24:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:24:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:24:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:24:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:24:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:24:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:24:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:24:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:24:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:24:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:24:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:24:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 16:24:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:24:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:24:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:24:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:24:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:24:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:24:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:24:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:24:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:24:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:24:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:24:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:24:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:24:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:24:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:24:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:24:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 16:24:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 16:24:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:24:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:24:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:24:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-20 16:24:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:24:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:24:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:24:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:24:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:24:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:24:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:24:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:24:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:24:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:24:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:24:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:24:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:24:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:24:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:24:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:24:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:24:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:24:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:24:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:24:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:24:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:24:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:24:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:24:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:24:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:24:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:24:09,133 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:24:09,133 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:24:09,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:09 BoogieIcfgContainer [2020-07-20 16:24:09,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:24:09,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:24:09,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:24:09,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:24:09,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:24:07" (1/3) ... [2020-07-20 16:24:09,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfc09c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:09, skipping insertion in model container [2020-07-20 16:24:09,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:24:08" (2/3) ... [2020-07-20 16:24:09,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfc09c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:24:09, skipping insertion in model container [2020-07-20 16:24:09,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:24:09" (3/3) ... [2020-07-20 16:24:09,146 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2020-07-20 16:24:09,156 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:24:09,163 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:24:09,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:24:09,199 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:24:09,199 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:24:09,199 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:24:09,199 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:24:09,200 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:24:09,200 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:24:09,200 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:24:09,200 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:24:09,222 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-07-20 16:24:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 16:24:09,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:09,233 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 16:24:09,233 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:09,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:09,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1150223249, now seen corresponding path program 1 times [2020-07-20 16:24:09,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:09,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498279361] [2020-07-20 16:24:09,249 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 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 16:24:09,696 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:24:09,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:09,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:24:09,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:09,742 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 16:24:09,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:09,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498279361] [2020-07-20 16:24:09,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:09,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:24:09,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144574015] [2020-07-20 16:24:09,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:24:09,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:09,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:24:09,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:24:09,767 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2020-07-20 16:24:09,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:09,806 INFO L93 Difference]: Finished difference Result 222 states and 279 transitions. [2020-07-20 16:24:09,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:24:09,807 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 16:24:09,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:09,820 INFO L225 Difference]: With dead ends: 222 [2020-07-20 16:24:09,820 INFO L226 Difference]: Without dead ends: 111 [2020-07-20 16:24:09,825 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 16:24:09,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-07-20 16:24:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-07-20 16:24:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-20 16:24:09,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2020-07-20 16:24:09,878 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2020-07-20 16:24:09,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:09,879 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2020-07-20 16:24:09,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:24:09,879 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2020-07-20 16:24:09,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 16:24:09,883 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:09,883 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 16:24:10,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:10,097 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:10,097 INFO L82 PathProgramCache]: Analyzing trace with hash 780273255, now seen corresponding path program 1 times [2020-07-20 16:24:10,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:10,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489264343] [2020-07-20 16:24:10,099 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 16:24:10,526 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:24:10,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:10,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:24:10,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:10,581 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 16:24:10,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:10,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489264343] [2020-07-20 16:24:10,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:10,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:24:10,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978602580] [2020-07-20 16:24:10,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:24:10,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:10,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:24:10,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:24:10,587 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 3 states. [2020-07-20 16:24:10,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:10,617 INFO L93 Difference]: Finished difference Result 165 states and 193 transitions. [2020-07-20 16:24:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:24:10,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 16:24:10,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:10,622 INFO L225 Difference]: With dead ends: 165 [2020-07-20 16:24:10,622 INFO L226 Difference]: Without dead ends: 102 [2020-07-20 16:24:10,624 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 16:24:10,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-07-20 16:24:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-07-20 16:24:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-07-20 16:24:10,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2020-07-20 16:24:10,645 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 53 [2020-07-20 16:24:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:10,646 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2020-07-20 16:24:10,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:24:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2020-07-20 16:24:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 16:24:10,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:10,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:24:10,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:10,866 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:10,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1294233432, now seen corresponding path program 1 times [2020-07-20 16:24:10,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:10,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061492319] [2020-07-20 16:24:10,868 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 16:24:11,179 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:24:11,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:11,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 16:24:11,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:11,216 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 16:24:11,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:11,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061492319] [2020-07-20 16:24:11,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:11,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:24:11,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949861455] [2020-07-20 16:24:11,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:24:11,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:11,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:24:11,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:24:11,220 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 3 states. [2020-07-20 16:24:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:11,264 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2020-07-20 16:24:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:24:11,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-20 16:24:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:11,270 INFO L225 Difference]: With dead ends: 256 [2020-07-20 16:24:11,270 INFO L226 Difference]: Without dead ends: 178 [2020-07-20 16:24:11,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:24:11,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-20 16:24:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2020-07-20 16:24:11,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-20 16:24:11,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 209 transitions. [2020-07-20 16:24:11,316 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 209 transitions. Word has length 57 [2020-07-20 16:24:11,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:11,317 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 209 transitions. [2020-07-20 16:24:11,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:24:11,317 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 209 transitions. [2020-07-20 16:24:11,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 16:24:11,323 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:11,323 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 16:24:11,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:11,525 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:11,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash -914462432, now seen corresponding path program 1 times [2020-07-20 16:24:11,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:11,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139420404] [2020-07-20 16:24:11,527 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 16:24:11,943 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:24:11,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:24:11,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 16:24:11,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:24:12,000 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 16:24:12,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:24:12,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139420404] [2020-07-20 16:24:12,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:24:12,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:24:12,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117488387] [2020-07-20 16:24:12,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:24:12,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:24:12,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:24:12,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:24:12,003 INFO L87 Difference]: Start difference. First operand 174 states and 209 transitions. Second operand 6 states. [2020-07-20 16:24:12,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:24:12,200 INFO L93 Difference]: Finished difference Result 459 states and 577 transitions. [2020-07-20 16:24:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:24:12,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 16:24:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:24:12,206 INFO L225 Difference]: With dead ends: 459 [2020-07-20 16:24:12,207 INFO L226 Difference]: Without dead ends: 309 [2020-07-20 16:24:12,208 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 16:24:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-07-20 16:24:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 305. [2020-07-20 16:24:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-07-20 16:24:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 376 transitions. [2020-07-20 16:24:12,239 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 376 transitions. Word has length 63 [2020-07-20 16:24:12,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:24:12,239 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 376 transitions. [2020-07-20 16:24:12,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:24:12,240 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 376 transitions. [2020-07-20 16:24:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 16:24:12,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:24:12,242 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 16:24:12,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:12,458 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:24:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:24:12,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1013606138, now seen corresponding path program 1 times [2020-07-20 16:24:12,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:24:12,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193679492] [2020-07-20 16:24:12,460 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 16:24:12,801 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:24:12,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 16:24:12,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:24:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 16:24:12,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:24:13,101 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 16:24:13,101 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 16:24:13,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:24:13,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:24:13 BoogieIcfgContainer [2020-07-20 16:24:13,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:24:13,509 INFO L168 Benchmark]: Toolchain (without parser) took 6128.55 ms. Allocated memory was 144.2 MB in the beginning and 296.2 MB in the end (delta: 152.0 MB). Free memory was 100.7 MB in the beginning and 242.4 MB in the end (delta: -141.7 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:13,511 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 16:24:13,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.07 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 100.3 MB in the beginning and 170.7 MB in the end (delta: -70.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:13,517 INFO L168 Benchmark]: Boogie Preprocessor took 80.96 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 166.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:13,519 INFO L168 Benchmark]: RCFGBuilder took 1039.57 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 166.5 MB in the beginning and 198.4 MB in the end (delta: -31.9 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:13,520 INFO L168 Benchmark]: TraceAbstraction took 4365.56 ms. Allocated memory was 233.3 MB in the beginning and 296.2 MB in the end (delta: 62.9 MB). Free memory was 198.4 MB in the beginning and 242.4 MB in the end (delta: -44.1 MB). Peak memory consumption was 128.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:13,532 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.07 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 100.3 MB in the beginning and 170.7 MB in the end (delta: -70.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.96 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 166.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1039.57 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 166.5 MB in the beginning and 198.4 MB in the end (delta: -31.9 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4365.56 ms. Allocated memory was 233.3 MB in the beginning and 296.2 MB in the end (delta: 62.9 MB). Free memory was 198.4 MB in the beginning and 242.4 MB in the end (delta: -44.1 MB). Peak memory consumption was 128.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 870]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L454] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int waterLevel = 1; [L653] int methaneLevelCritical = 0; [L732] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=27, \old(head)=66, \old(head)=35, \old(methaneLevelCritical)=85, \old(pumpRunning)=59, \old(systemActive)=70, \old(waterLevel)=45, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L808] int retValue_acc ; [L809] 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] [L813] 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] [L814] 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] [L815] 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] [L901] int retValue_acc ; [L904] retValue_acc = 1 [L905] 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] [L815] 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] [L815] tmp = valid_product() [L817] 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] [L819] 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] [L820] 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] [L799] 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] [L219] int splverifierCounter ; [L220] int tmp ; [L221] int tmp___0 ; [L222] int tmp___1 ; [L223] int tmp___2 ; [L226] 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] [L228] 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] [L230] 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] [L236] tmp = __VERIFIER_nondet_int() [L238] 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] [L240] 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] [L670] COND TRUE waterLevel < 2 [L671] 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] [L240] 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] [L246] tmp___0 = __VERIFIER_nondet_int() [L248] 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] [L256] tmp___2 = __VERIFIER_nondet_int() [L258] COND FALSE !(\read(tmp___2)) [L262] tmp___1 = __VERIFIER_nondet_int() [L264] 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] [L266] 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] [L203] 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] [L210] 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] [L266] 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] [L273] 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] [L57] 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] [L64] 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] [L72] 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] [L833] int tmp ; [L834] int tmp___0 ; [L835] 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] [L839] 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] [L691] int retValue_acc ; [L694] retValue_acc = methaneLevelCritical [L695] 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] [L839] 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] [L839] tmp = isMethaneLevelCritical() [L841] 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] [L845] 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] [L723] int retValue_acc ; [L726] retValue_acc = waterLevel [L727] 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] [L845] 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] [L845] tmp___0 = getWaterLevel() [L847] 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] [L849] 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] [L155] int retValue_acc ; [L158] retValue_acc = pumpRunning [L159] 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] [L849] 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] [L849] tmp___1 = isPumpRunning() [L851] 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] [L855] 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] [L870] __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 37 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 149 SDslu, 633 SDs, 0 SdLazy, 81 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 292 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 23257 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2631 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...