/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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:41:55,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:41:55,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:41:55,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:41:55,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:41:55,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:41:55,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:41:55,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:41:55,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:41:55,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:41:55,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:41:55,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:41:55,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:41:55,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:41:55,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:41:55,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:41:55,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:41:55,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:41:55,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:41:55,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:41:55,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:41:55,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:41:55,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:41:55,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:41:55,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:41:55,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:41:55,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:41:55,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:41:55,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:41:55,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:41:55,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:41:55,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:41:55,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:41:55,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:41:55,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:41:55,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:41:55,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:41:55,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:41:55,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:41:55,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:41:55,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:41:55,315 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 10:41:55,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:41:55,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:41:55,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:41:55,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:41:55,354 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:41:55,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:41:55,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:41:55,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:41:55,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:41:55,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:41:55,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:41:55,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:41:55,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:41:55,361 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:41:55,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:41:55,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:41:55,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:41:55,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:41:55,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:41:55,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:41:55,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:41:55,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:41:55,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:41:55,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:41:55,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:41:55,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:41:55,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:55,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:41:55,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:41:55,366 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 [2020-07-20 10:41:55,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:41:55,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:41:55,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:41:55,720 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:41:55,720 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:41:55,721 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-07-20 10:41:55,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248e266e7/6c6d8d116a674396aa8fab2321f81e7d/FLAGde1ec0fe4 [2020-07-20 10:41:56,300 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:41:56,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-07-20 10:41:56,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248e266e7/6c6d8d116a674396aa8fab2321f81e7d/FLAGde1ec0fe4 [2020-07-20 10:41:56,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248e266e7/6c6d8d116a674396aa8fab2321f81e7d [2020-07-20 10:41:56,604 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:41:56,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:41:56,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:41:56,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:41:56,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:41:56,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:41:56" (1/1) ... [2020-07-20 10:41:56,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337a95a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:56, skipping insertion in model container [2020-07-20 10:41:56,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:41:56" (1/1) ... [2020-07-20 10:41:56,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:41:56,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:41:56,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:41:56,981 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:41:57,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:41:57,226 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:41:57,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57 WrapperNode [2020-07-20 10:41:57,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:41:57,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:41:57,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:41:57,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:41:57,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (1/1) ... [2020-07-20 10:41:57,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (1/1) ... [2020-07-20 10:41:57,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (1/1) ... [2020-07-20 10:41:57,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (1/1) ... [2020-07-20 10:41:57,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (1/1) ... [2020-07-20 10:41:57,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (1/1) ... [2020-07-20 10:41:57,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (1/1) ... [2020-07-20 10:41:57,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:41:57,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:41:57,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:41:57,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:41:57,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (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 10:41:57,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:41:57,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:41:57,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:41:57,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:41:57,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:41:57,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:41:57,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:41:57,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:41:57,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:41:57,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:41:57,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:41:57,450 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:41:57,451 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:41:57,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:41:57,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:41:57,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:41:57,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:41:57,453 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:41:57,453 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:41:57,453 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 10:41:57,453 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:41:57,453 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:41:57,453 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:41:57,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:41:57,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:41:57,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:41:57,455 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 10:41:57,455 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 10:41:57,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:41:57,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:41:57,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:41:57,455 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:41:57,456 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:41:57,456 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:41:57,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:41:57,456 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:41:57,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:41:57,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:41:57,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:41:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:41:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:41:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:41:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:41:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:41:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:41:57,457 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:41:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:41:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:41:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:41:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:41:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:41:57,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:41:57,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:41:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:41:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:41:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:41:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:41:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:41:57,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:41:57,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:41:57,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:41:57,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:41:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:41:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:41:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:41:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:41:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 10:41:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 10:41:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:41:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:41:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:41:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:41:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:41:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:41:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:41:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 10:41:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:41:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:41:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:41:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:41:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:41:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:41:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:41:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:41:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:41:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:41:57,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:41:57,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:41:58,471 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:41:58,472 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:41:58,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:41:58 BoogieIcfgContainer [2020-07-20 10:41:58,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:41:58,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:41:58,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:41:58,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:41:58,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:41:56" (1/3) ... [2020-07-20 10:41:58,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f01769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:41:58, skipping insertion in model container [2020-07-20 10:41:58,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:41:57" (2/3) ... [2020-07-20 10:41:58,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f01769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:41:58, skipping insertion in model container [2020-07-20 10:41:58,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:41:58" (3/3) ... [2020-07-20 10:41:58,489 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-07-20 10:41:58,499 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:41:58,509 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:41:58,522 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:41:58,543 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:41:58,543 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:41:58,543 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:41:58,543 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:41:58,544 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:41:58,544 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:41:58,544 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:41:58,544 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:41:58,567 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-07-20 10:41:58,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:41:58,578 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:58,579 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 10:41:58,580 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:58,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:58,586 INFO L82 PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times [2020-07-20 10:41:58,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:58,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278094950] [2020-07-20 10:41:58,596 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 [2020-07-20 10:41:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:58,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:41:58,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:58,948 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 10:41:58,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:58,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278094950] [2020-07-20 10:41:58,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:58,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:41:58,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169682450] [2020-07-20 10:41:58,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:41:58,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:58,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:41:58,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:41:58,975 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 2 states. [2020-07-20 10:41:59,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:59,018 INFO L93 Difference]: Finished difference Result 230 states and 287 transitions. [2020-07-20 10:41:59,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:41:59,019 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 10:41:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:59,033 INFO L225 Difference]: With dead ends: 230 [2020-07-20 10:41:59,033 INFO L226 Difference]: Without dead ends: 115 [2020-07-20 10:41:59,038 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 10:41:59,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-07-20 10:41:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-07-20 10:41:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-20 10:41:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-07-20 10:41:59,094 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-07-20 10:41:59,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:59,094 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-07-20 10:41:59,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:41:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-07-20 10:41:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 10:41:59,099 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:59,099 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 10:41:59,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:59,314 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash 883286197, now seen corresponding path program 1 times [2020-07-20 10:41:59,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:59,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738317793] [2020-07-20 10:41:59,317 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 [2020-07-20 10:41:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:59,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:41:59,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:41:59,563 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 10:41:59,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:41:59,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738317793] [2020-07-20 10:41:59,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:41:59,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:41:59,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302946841] [2020-07-20 10:41:59,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:41:59,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:41:59,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:41:59,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:41:59,567 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 3 states. [2020-07-20 10:41:59,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:41:59,588 INFO L93 Difference]: Finished difference Result 169 states and 197 transitions. [2020-07-20 10:41:59,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:41:59,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 10:41:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:41:59,591 INFO L225 Difference]: With dead ends: 169 [2020-07-20 10:41:59,591 INFO L226 Difference]: Without dead ends: 106 [2020-07-20 10:41:59,592 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 10:41:59,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-07-20 10:41:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-07-20 10:41:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-20 10:41:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-07-20 10:41:59,606 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-07-20 10:41:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:41:59,606 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-07-20 10:41:59,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:41:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-07-20 10:41:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 10:41:59,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:41:59,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:41:59,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:41:59,825 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:41:59,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:41:59,825 INFO L82 PathProgramCache]: Analyzing trace with hash -2055351283, now seen corresponding path program 1 times [2020-07-20 10:41:59,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:41:59,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306824180] [2020-07-20 10:41:59,826 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 [2020-07-20 10:41:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:41:59,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:42:00,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:00,028 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 10:42:00,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:00,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306824180] [2020-07-20 10:42:00,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:00,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:00,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198219869] [2020-07-20 10:42:00,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:00,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:00,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:00,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:00,031 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 3 states. [2020-07-20 10:42:00,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:00,060 INFO L93 Difference]: Finished difference Result 266 states and 320 transitions. [2020-07-20 10:42:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:00,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-20 10:42:00,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:00,063 INFO L225 Difference]: With dead ends: 266 [2020-07-20 10:42:00,063 INFO L226 Difference]: Without dead ends: 184 [2020-07-20 10:42:00,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:00,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-07-20 10:42:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2020-07-20 10:42:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-07-20 10:42:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 213 transitions. [2020-07-20 10:42:00,092 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 213 transitions. Word has length 58 [2020-07-20 10:42:00,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:00,092 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 213 transitions. [2020-07-20 10:42:00,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:00,092 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 213 transitions. [2020-07-20 10:42:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 10:42:00,095 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:00,095 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 10:42:00,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:00,311 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:00,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1417899682, now seen corresponding path program 1 times [2020-07-20 10:42:00,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:00,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866543113] [2020-07-20 10:42:00,313 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 [2020-07-20 10:42:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:00,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 10:42:00,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:00,543 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 10:42:00,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:00,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866543113] [2020-07-20 10:42:00,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:00,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:42:00,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269304147] [2020-07-20 10:42:00,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:42:00,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:00,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:42:00,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:42:00,546 INFO L87 Difference]: Start difference. First operand 178 states and 213 transitions. Second operand 6 states. [2020-07-20 10:42:00,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:00,808 INFO L93 Difference]: Finished difference Result 471 states and 589 transitions. [2020-07-20 10:42:00,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:42:00,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 10:42:00,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:00,813 INFO L225 Difference]: With dead ends: 471 [2020-07-20 10:42:00,813 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 10:42:00,815 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 10:42:00,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 10:42:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2020-07-20 10:42:00,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-07-20 10:42:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 384 transitions. [2020-07-20 10:42:00,849 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 384 transitions. Word has length 63 [2020-07-20 10:42:00,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:00,849 INFO L479 AbstractCegarLoop]: Abstraction has 313 states and 384 transitions. [2020-07-20 10:42:00,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:42:00,850 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 384 transitions. [2020-07-20 10:42:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 10:42:00,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:00,853 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 10:42:01,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:01,069 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:01,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:01,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1714463836, now seen corresponding path program 1 times [2020-07-20 10:42:01,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:01,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291634185] [2020-07-20 10:42:01,071 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 [2020-07-20 10:42:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:01,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:01,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:01,699 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:42:01,699 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:42:01,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:02,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:42:02 BoogieIcfgContainer [2020-07-20 10:42:02,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:42:02,074 INFO L168 Benchmark]: Toolchain (without parser) took 5464.79 ms. Allocated memory was 144.7 MB in the beginning and 250.6 MB in the end (delta: 105.9 MB). Free memory was 101.9 MB in the beginning and 109.0 MB in the end (delta: -7.1 MB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:02,076 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 10:42:02,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.66 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 172.7 MB in the end (delta: -71.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:02,078 INFO L168 Benchmark]: Boogie Preprocessor took 139.93 ms. Allocated memory is still 201.9 MB. Free memory was 172.7 MB in the beginning and 167.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:02,080 INFO L168 Benchmark]: RCFGBuilder took 1112.15 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 167.8 MB in the beginning and 200.4 MB in the end (delta: -32.6 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:02,081 INFO L168 Benchmark]: TraceAbstraction took 3587.05 ms. Allocated memory was 233.8 MB in the beginning and 250.6 MB in the end (delta: 16.8 MB). Free memory was 199.0 MB in the beginning and 109.0 MB in the end (delta: 90.0 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:02,088 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 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 619.66 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 172.7 MB in the end (delta: -71.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.93 ms. Allocated memory is still 201.9 MB. Free memory was 172.7 MB in the beginning and 167.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1112.15 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 167.8 MB in the beginning and 200.4 MB in the end (delta: -32.6 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3587.05 ms. Allocated memory was 233.8 MB in the beginning and 250.6 MB in the end (delta: 16.8 MB). Free memory was 199.0 MB in the beginning and 109.0 MB in the end (delta: 90.0 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=89, \old(head)=55, \old(head)=74, \old(methaneLevelCritical)=51, \old(pumpRunning)=68, \old(systemActive)=86, \old(waterLevel)=56, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] int retValue_acc ; [L881] 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] [L885] 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] [L886] 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] [L887] 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] [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] 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] [L887] 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] [L887] tmp = valid_product() [L889] 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] [L891] 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] [L892] 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] [L874] 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] [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] 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] [L551] 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] [L553] 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] [L559] tmp = __VERIFIER_nondet_int() [L561] 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] [L563] 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] [L466] COND TRUE waterLevel < 2 [L467] 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] [L563] 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] [L569] tmp___0 = __VERIFIER_nondet_int() [L571] 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] [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] 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] [L591] 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] [L749] 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] [L756] 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] [L591] 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] [L598] 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] [L620] 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] [L627] 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] [L635] 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] [L45] int tmp ; [L46] int tmp___0 ; [L47] 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] [L51] 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] [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] 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] [L51] 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] [L51] tmp = isMethaneLevelCritical() [L53] 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] [L57] 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] [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] 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] [L57] 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] [L57] tmp___0 = getWaterLevel() [L59] 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] [L61] 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] [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] 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] [L61] 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] [L61] tmp___1 = isPumpRunning() [L63] 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] [L67] 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] [L532] __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, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 567 SDtfs, 156 SDslu, 624 SDs, 0 SdLazy, 80 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2709 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...