/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:36:59,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:36:59,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:36:59,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:36:59,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:36:59,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:36:59,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:36:59,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:36:59,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:36:59,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:36:59,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:36:59,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:36:59,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:36:59,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:36:59,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:36:59,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:36:59,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:36:59,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:36:59,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:36:59,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:36:59,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:36:59,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:36:59,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:36:59,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:36:59,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:36:59,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:36:59,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:36:59,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:36:59,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:36:59,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:36:59,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:36:59,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:36:59,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:36:59,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:36:59,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:36:59,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:36:59,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:36:59,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:36:59,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:36:59,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:36:59,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:36:59,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 10:36:59,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:36:59,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:36:59,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:36:59,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:36:59,096 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:36:59,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:36:59,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:36:59,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:36:59,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:36:59,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:36:59,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:36:59,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:36:59,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:36:59,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:36:59,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:36:59,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:36:59,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:36:59,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:36:59,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:36:59,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:36:59,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:36:59,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:36:59,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:36:59,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:36:59,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:36:59,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:36:59,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:59,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:36:59,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:36:59,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 10:36:59,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:36:59,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:36:59,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:36:59,411 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:36:59,411 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:36:59,412 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-07-21 10:36:59,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc580b0/96285752ea944b74bfc6725082a0eaef/FLAG3921f7b46 [2020-07-21 10:37:00,002 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:37:00,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-07-21 10:37:00,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc580b0/96285752ea944b74bfc6725082a0eaef/FLAG3921f7b46 [2020-07-21 10:37:00,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc580b0/96285752ea944b74bfc6725082a0eaef [2020-07-21 10:37:00,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:37:00,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:37:00,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:00,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:37:00,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:37:00,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:00" (1/1) ... [2020-07-21 10:37:00,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ad3b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:00, skipping insertion in model container [2020-07-21 10:37:00,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:37:00" (1/1) ... [2020-07-21 10:37:00,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:37:00,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:37:00,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:00,766 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:37:01,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:37:01,036 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:37:01,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01 WrapperNode [2020-07-21 10:37:01,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:37:01,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:37:01,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:37:01,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:37:01,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... [2020-07-21 10:37:01,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... [2020-07-21 10:37:01,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... [2020-07-21 10:37:01,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... [2020-07-21 10:37:01,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... [2020-07-21 10:37:01,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... [2020-07-21 10:37:01,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... [2020-07-21 10:37:01,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:37:01,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:37:01,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:37:01,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:37:01,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:37:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:37:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:37:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:37:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:37:01,264 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:37:01,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:37:01,265 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:37:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:37:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 10:37:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:37:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:37:01,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:37:01,267 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:37:01,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:37:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:37:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:37:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:37:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:37:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:37:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 10:37:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:37:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:37:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 10:37:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:37:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:37:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:37:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:37:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:37:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 10:37:01,274 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 10:37:01,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:37:01,274 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:37:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:37:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:37:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:37:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:37:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:37:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:37:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:37:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:37:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:37:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:37:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:37:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:37:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 10:37:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:37:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:37:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:37:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:37:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:37:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:37:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:37:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:37:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:37:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:37:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:37:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:37:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:37:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:37:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:37:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:37:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:37:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:37:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:37:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:37:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:37:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:37:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:37:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:37:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:37:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:37:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:37:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:37:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 10:37:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:37:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:37:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:37:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:37:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:37:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 10:37:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 10:37:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:37:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:37:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 10:37:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:37:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:37:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:37:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:37:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:37:02,465 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:37:02,466 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:37:02,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:02 BoogieIcfgContainer [2020-07-21 10:37:02,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:37:02,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:37:02,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:37:02,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:37:02,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:37:00" (1/3) ... [2020-07-21 10:37:02,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f96aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:02, skipping insertion in model container [2020-07-21 10:37:02,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:37:01" (2/3) ... [2020-07-21 10:37:02,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f96aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:37:02, skipping insertion in model container [2020-07-21 10:37:02,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:37:02" (3/3) ... [2020-07-21 10:37:02,481 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-07-21 10:37:02,492 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:37:02,501 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:37:02,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:37:02,544 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:37:02,545 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:37:02,545 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:37:02,545 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:37:02,545 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:37:02,546 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:37:02,546 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:37:02,546 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:37:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-07-21 10:37:02,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:37:02,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:02,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:02,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:02,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:02,591 INFO L82 PathProgramCache]: Analyzing trace with hash -48518306, now seen corresponding path program 1 times [2020-07-21 10:37:02,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:02,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426333554] [2020-07-21 10:37:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:02,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:37:02,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:02,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:02,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426333554] [2020-07-21 10:37:02,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:02,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:37:02,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988927804] [2020-07-21 10:37:02,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:37:02,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:02,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:37:02,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:37:02,929 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 2 states. [2020-07-21 10:37:02,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:02,974 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2020-07-21 10:37:02,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:37:02,976 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 10:37:02,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:02,989 INFO L225 Difference]: With dead ends: 258 [2020-07-21 10:37:02,990 INFO L226 Difference]: Without dead ends: 129 [2020-07-21 10:37:02,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:37:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-07-21 10:37:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-07-21 10:37:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-07-21 10:37:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2020-07-21 10:37:03,054 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2020-07-21 10:37:03,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:03,055 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2020-07-21 10:37:03,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:37:03,055 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2020-07-21 10:37:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 10:37:03,059 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:03,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:03,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:03,274 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:03,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:03,276 INFO L82 PathProgramCache]: Analyzing trace with hash 224052050, now seen corresponding path program 1 times [2020-07-21 10:37:03,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:03,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762476399] [2020-07-21 10:37:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:03,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:37:03,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:03,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:03,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762476399] [2020-07-21 10:37:03,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:03,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:03,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745807723] [2020-07-21 10:37:03,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:03,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:03,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:03,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:03,587 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 3 states. [2020-07-21 10:37:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:03,609 INFO L93 Difference]: Finished difference Result 203 states and 239 transitions. [2020-07-21 10:37:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:03,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 10:37:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:03,616 INFO L225 Difference]: With dead ends: 203 [2020-07-21 10:37:03,616 INFO L226 Difference]: Without dead ends: 120 [2020-07-21 10:37:03,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-21 10:37:03,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-21 10:37:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-21 10:37:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-07-21 10:37:03,639 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2020-07-21 10:37:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:03,639 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-07-21 10:37:03,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:03,640 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-07-21 10:37:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 10:37:03,647 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:03,647 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] [2020-07-21 10:37:03,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:03,848 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:03,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:03,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1519728538, now seen corresponding path program 1 times [2020-07-21 10:37:03,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:03,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819534175] [2020-07-21 10:37:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:04,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:37:04,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:04,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:04,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:04,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819534175] [2020-07-21 10:37:04,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:04,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:37:04,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220814652] [2020-07-21 10:37:04,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:37:04,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:04,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:37:04,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:37:04,079 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 3 states. [2020-07-21 10:37:04,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:04,114 INFO L93 Difference]: Finished difference Result 216 states and 257 transitions. [2020-07-21 10:37:04,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:37:04,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 10:37:04,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:04,118 INFO L225 Difference]: With dead ends: 216 [2020-07-21 10:37:04,119 INFO L226 Difference]: Without dead ends: 120 [2020-07-21 10:37:04,120 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 [2020-07-21 10:37:04,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-21 10:37:04,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-21 10:37:04,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-21 10:37:04,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2020-07-21 10:37:04,141 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 58 [2020-07-21 10:37:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:04,142 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2020-07-21 10:37:04,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:37:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2020-07-21 10:37:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-21 10:37:04,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:04,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:04,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:04,359 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:04,360 INFO L82 PathProgramCache]: Analyzing trace with hash -531263457, now seen corresponding path program 1 times [2020-07-21 10:37:04,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:04,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862303191] [2020-07-21 10:37:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:37:04,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:37:04,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:37:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:37:04,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:37:04,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862303191] [2020-07-21 10:37:04,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:37:04,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:37:04,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064521748] [2020-07-21 10:37:04,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:37:04,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:37:04,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:37:04,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:37:04,619 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 6 states. [2020-07-21 10:37:04,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:37:04,848 INFO L93 Difference]: Finished difference Result 303 states and 367 transitions. [2020-07-21 10:37:04,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:37:04,848 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-07-21 10:37:04,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:37:04,852 INFO L225 Difference]: With dead ends: 303 [2020-07-21 10:37:04,853 INFO L226 Difference]: Without dead ends: 207 [2020-07-21 10:37:04,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:37:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-07-21 10:37:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2020-07-21 10:37:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-07-21 10:37:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 244 transitions. [2020-07-21 10:37:04,879 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 244 transitions. Word has length 71 [2020-07-21 10:37:04,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:37:04,880 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 244 transitions. [2020-07-21 10:37:04,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:37:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 244 transitions. [2020-07-21 10:37:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-21 10:37:04,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:37:04,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 10:37:05,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:05,096 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:37:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:37:05,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1135016507, now seen corresponding path program 1 times [2020-07-21 10:37:05,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:37:05,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037041539] [2020-07-21 10:37:05,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:05,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:37:05,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:37:05,696 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:37:05,697 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:37:05,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:37:06,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:37:06 BoogieIcfgContainer [2020-07-21 10:37:06,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:37:06,134 INFO L168 Benchmark]: Toolchain (without parser) took 5828.01 ms. Allocated memory was 139.5 MB in the beginning and 277.3 MB in the end (delta: 137.9 MB). Free memory was 103.5 MB in the beginning and 233.7 MB in the end (delta: -130.2 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:06,135 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 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. [2020-07-21 10:37:06,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.55 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 103.1 MB in the beginning and 176.0 MB in the end (delta: -72.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:06,137 INFO L168 Benchmark]: Boogie Preprocessor took 133.54 ms. Allocated memory is still 206.0 MB. Free memory was 176.0 MB in the beginning and 171.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:06,138 INFO L168 Benchmark]: RCFGBuilder took 1297.43 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 171.9 MB in the beginning and 196.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:06,139 INFO L168 Benchmark]: TraceAbstraction took 3657.97 ms. Allocated memory was 235.9 MB in the beginning and 277.3 MB in the end (delta: 41.4 MB). Free memory was 196.9 MB in the beginning and 233.7 MB in the end (delta: -36.8 MB). Peak memory consumption was 113.2 MB. Max. memory is 7.1 GB. [2020-07-21 10:37:06,142 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 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 730.55 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 103.1 MB in the beginning and 176.0 MB in the end (delta: -72.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.54 ms. Allocated memory is still 206.0 MB. Free memory was 176.0 MB in the beginning and 171.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1297.43 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 171.9 MB in the beginning and 196.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3657.97 ms. Allocated memory was 235.9 MB in the beginning and 277.3 MB in the end (delta: 41.4 MB). Free memory was 196.9 MB in the beginning and 233.7 MB in the end (delta: -36.8 MB). Peak memory consumption was 113.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 883]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L136] int cleanupTimeShifts = 4; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L675] int pumpRunning = 0; [L676] int systemActive = 1; VAL [\old(cleanupTimeShifts)=85, \old(head)=36, \old(head)=89, \old(methaneLevelCritical)=69, \old(pumpRunning)=27, \old(systemActive)=92, \old(waterLevel)=37, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L215] int retValue_acc ; [L216] 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] [L220] 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] [L221] 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] [L222] 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] [L914] int retValue_acc ; [L917] retValue_acc = 1 [L918] 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] [L222] 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] [L222] tmp = valid_product() [L224] 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] [L226] 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] [L227] 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] [L206] 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] [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] 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] [L615] 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] [L617] 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] [L623] tmp = __VERIFIER_nondet_int() [L625] 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] [L627] 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] [L65] COND TRUE waterLevel < 2 [L66] 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] [L627] 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] [L633] tmp___0 = __VERIFIER_nondet_int() [L635] 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] [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] 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] [L660] 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=1, waterLevel=2] [L683] 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=1, waterLevel=2] [L690] COND TRUE \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=1, waterLevel=2] [L692] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L741] 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=1, waterLevel=2] [L756] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L712] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L715] 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=1, waterLevel=2] [L730] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L692] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] 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=1, waterLevel=2] [L924] int tmp ; [L925] int tmp___0 ; [L926] 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=1, waterLevel=2] [L930] 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=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] 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=1, waterLevel=2] [L930] 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=1, waterLevel=2] [L930] tmp = isMethaneLevelCritical() [L932] 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=1, tmp=0, waterLevel=2] [L936] 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=1, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] 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=1, waterLevel=2] [L936] 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=1, tmp=0, waterLevel=2] [L936] tmp___0 = getWaterLevel() [L938] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L940] 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=1, waterLevel=2] [L807] int retValue_acc ; [L810] retValue_acc = pumpRunning [L811] 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=1, waterLevel=2] [L940] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L940] tmp___1 = isPumpRunning() [L942] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L946] 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=1, waterLevel=2] [L883] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 596 SDtfs, 183 SDslu, 641 SDs, 0 SdLazy, 91 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 309 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 26638 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2717 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...