/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 00:10:23,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 00:10:23,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 00:10:23,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 00:10:23,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 00:10:23,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 00:10:23,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 00:10:23,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 00:10:23,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 00:10:23,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 00:10:23,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 00:10:23,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 00:10:23,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:10:23,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:10:23,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:10:23,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:10:23,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:10:23,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:10:23,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:10:23,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:10:23,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:10:23,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:10:23,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:10:23,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:10:23,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 00:10:23,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 00:10:23,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 00:10:23,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 00:10:23,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 00:10:23,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 00:10:23,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 00:10:23,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 00:10:23,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 00:10:23,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 00:10:23,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 00:10:23,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 00:10:23,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 00:10:23,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 00:10:23,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:10:23,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:10:23,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:10:23,367 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 00:10:23,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:10:23,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:10:23,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:10:23,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:10:23,395 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:10:23,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:10:23,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 00:10:23,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:10:23,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 00:10:23,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:10:23,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:10:23,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:10:23,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:10:23,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 00:10:23,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:10:23,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:10:23,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:10:23,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:10:23,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:10:23,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:10:23,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:10:23,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:10:23,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:10:23,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:10:23,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:10:23,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:10:23,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:10:23,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:10:23,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:10:23,400 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; [2020-08-19 00:10:23,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:10:23,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:10:23,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:10:23,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:10:23,749 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:10:23,750 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-19 00:10:23,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea99d1a4b/8f1dcb7092664d6bb87030ab8299913a/FLAGff7e5b07d [2020-08-19 00:10:24,263 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:10:24,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-19 00:10:24,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea99d1a4b/8f1dcb7092664d6bb87030ab8299913a/FLAGff7e5b07d [2020-08-19 00:10:24,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea99d1a4b/8f1dcb7092664d6bb87030ab8299913a [2020-08-19 00:10:24,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:10:24,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:10:24,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:10:24,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:10:24,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:10:24,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:10:24" (1/1) ... [2020-08-19 00:10:24,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7abdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:24, skipping insertion in model container [2020-08-19 00:10:24,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:10:24" (1/1) ... [2020-08-19 00:10:24,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:10:24,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:10:25,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:10:25,039 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:10:25,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:10:25,270 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:10:25,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25 WrapperNode [2020-08-19 00:10:25,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:10:25,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:10:25,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:10:25,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:10:25,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... [2020-08-19 00:10:25,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... [2020-08-19 00:10:25,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... [2020-08-19 00:10:25,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... [2020-08-19 00:10:25,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... [2020-08-19 00:10:25,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... [2020-08-19 00:10:25,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... [2020-08-19 00:10:25,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:10:25,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:10:25,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:10:25,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:10:25,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-19 00:10:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:10:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:10:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 00:10:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 00:10:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 00:10:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 00:10:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 00:10:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 00:10:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 00:10:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 00:10:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 00:10:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 00:10:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 00:10:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 00:10:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-19 00:10:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 00:10:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 00:10:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 00:10:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 00:10:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:10:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 00:10:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 00:10:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 00:10:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 00:10:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 00:10:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 00:10:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 00:10:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 00:10:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 00:10:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 00:10:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 00:10:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 00:10:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 00:10:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 00:10:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 00:10:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 00:10:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 00:10:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 00:10:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:10:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:10:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 00:10:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 00:10:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 00:10:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 00:10:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 00:10:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 00:10:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 00:10:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 00:10:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 00:10:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 00:10:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 00:10:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 00:10:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 00:10:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 00:10:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 00:10:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-19 00:10:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 00:10:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 00:10:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 00:10:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 00:10:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 00:10:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 00:10:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 00:10:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 00:10:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 00:10:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 00:10:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 00:10:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 00:10:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 00:10:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:10:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 00:10:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 00:10:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 00:10:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 00:10:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 00:10:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 00:10:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 00:10:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 00:10:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 00:10:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 00:10:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 00:10:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 00:10:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 00:10:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 00:10:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 00:10:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 00:10:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 00:10:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:10:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 00:10:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:10:26,619 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:10:26,620 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 00:10:26,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:10:26 BoogieIcfgContainer [2020-08-19 00:10:26,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:10:26,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:10:26,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:10:26,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:10:26,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:10:24" (1/3) ... [2020-08-19 00:10:26,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a99bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:10:26, skipping insertion in model container [2020-08-19 00:10:26,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:10:25" (2/3) ... [2020-08-19 00:10:26,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a99bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:10:26, skipping insertion in model container [2020-08-19 00:10:26,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:10:26" (3/3) ... [2020-08-19 00:10:26,633 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-08-19 00:10:26,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:10:26,652 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:10:26,666 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:10:26,691 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:10:26,691 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:10:26,691 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:10:26,692 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:10:26,692 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:10:26,692 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:10:26,692 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:10:26,692 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:10:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-08-19 00:10:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-19 00:10:26,727 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:10:26,728 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] [2020-08-19 00:10:26,729 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:10:26,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:10:26,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-08-19 00:10:26,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:10:26,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468857690] [2020-08-19 00:10:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:10:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,416 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:10:27,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:10:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:10:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:10:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:10:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:10:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 00:10:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 00:10:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 00:10:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:27,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:10:27,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468857690] [2020-08-19 00:10:27,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:10:27,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 00:10:27,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751921851] [2020-08-19 00:10:27,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 00:10:27,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:10:27,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 00:10:27,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 00:10:27,588 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-08-19 00:10:28,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:10:28,662 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2020-08-19 00:10:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 00:10:28,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-19 00:10:28,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:10:28,679 INFO L225 Difference]: With dead ends: 281 [2020-08-19 00:10:28,679 INFO L226 Difference]: Without dead ends: 152 [2020-08-19 00:10:28,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 00:10:28,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-08-19 00:10:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-08-19 00:10:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-08-19 00:10:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-08-19 00:10:28,807 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-08-19 00:10:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:10:28,809 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-08-19 00:10:28,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 00:10:28,809 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-08-19 00:10:28,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-19 00:10:28,818 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:10:28,818 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] [2020-08-19 00:10:28,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:10:28,819 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:10:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:10:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash -548767927, now seen corresponding path program 1 times [2020-08-19 00:10:28,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:10:28,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598120736] [2020-08-19 00:10:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:10:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,157 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:10:29,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:10:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:10:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:10:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:10:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:10:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 00:10:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 00:10:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 00:10:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:29,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:10:29,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598120736] [2020-08-19 00:10:29,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:10:29,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 00:10:29,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328702569] [2020-08-19 00:10:29,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 00:10:29,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:10:29,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 00:10:29,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 00:10:29,248 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-08-19 00:10:29,764 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 00:10:30,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:10:30,526 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-08-19 00:10:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 00:10:30,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-19 00:10:30,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:10:30,530 INFO L225 Difference]: With dead ends: 205 [2020-08-19 00:10:30,530 INFO L226 Difference]: Without dead ends: 136 [2020-08-19 00:10:30,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:10:30,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-19 00:10:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-08-19 00:10:30,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-19 00:10:30,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-08-19 00:10:30,569 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-08-19 00:10:30,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:10:30,570 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-08-19 00:10:30,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 00:10:30,570 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-08-19 00:10:30,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-19 00:10:30,572 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:10:30,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:10:30,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:10:30,573 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:10:30,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:10:30,573 INFO L82 PathProgramCache]: Analyzing trace with hash 196992317, now seen corresponding path program 1 times [2020-08-19 00:10:30,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:10:30,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886759471] [2020-08-19 00:10:30,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:10:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:30,907 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:10:30,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:10:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:30,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:10:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:30,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:10:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:30,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:10:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:31,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:10:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:31,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 00:10:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:31,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 00:10:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 00:10:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:10:31,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886759471] [2020-08-19 00:10:31,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:10:31,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 00:10:31,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923143518] [2020-08-19 00:10:31,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:10:31,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:10:31,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:10:31,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:10:31,046 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 8 states. [2020-08-19 00:10:31,413 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 00:10:31,703 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:10:31,967 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:10:32,201 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:10:32,901 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 00:10:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:10:34,383 INFO L93 Difference]: Finished difference Result 387 states and 477 transitions. [2020-08-19 00:10:34,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 00:10:34,385 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-19 00:10:34,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:10:34,390 INFO L225 Difference]: With dead ends: 387 [2020-08-19 00:10:34,391 INFO L226 Difference]: Without dead ends: 300 [2020-08-19 00:10:34,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-19 00:10:34,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-08-19 00:10:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 234. [2020-08-19 00:10:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-08-19 00:10:34,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions. [2020-08-19 00:10:34,465 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 57 [2020-08-19 00:10:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:10:34,466 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 279 transitions. [2020-08-19 00:10:34,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:10:34,466 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions. [2020-08-19 00:10:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-19 00:10:34,469 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:10:34,469 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] [2020-08-19 00:10:34,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:10:34,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:10:34,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:10:34,470 INFO L82 PathProgramCache]: Analyzing trace with hash 925372224, now seen corresponding path program 1 times [2020-08-19 00:10:34,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:10:34,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815421309] [2020-08-19 00:10:34,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:10:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,728 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 00:10:34,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:10:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:10:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:10:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:10:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:10:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 00:10:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 00:10:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 00:10:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 00:10:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:10:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:10:34,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815421309] [2020-08-19 00:10:34,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:10:34,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 00:10:34,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774273490] [2020-08-19 00:10:34,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:10:34,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:10:34,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:10:34,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:10:34,813 INFO L87 Difference]: Start difference. First operand 234 states and 279 transitions. Second operand 8 states. [2020-08-19 00:10:35,188 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 00:10:36,401 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:10:36,722 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:10:36,982 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 00:10:37,198 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 00:10:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:10:37,806 INFO L93 Difference]: Finished difference Result 714 states and 935 transitions. [2020-08-19 00:10:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 00:10:37,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-19 00:10:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:10:37,812 INFO L225 Difference]: With dead ends: 714 [2020-08-19 00:10:37,813 INFO L226 Difference]: Without dead ends: 504 [2020-08-19 00:10:37,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-19 00:10:37,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-08-19 00:10:37,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 441. [2020-08-19 00:10:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-19 00:10:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 537 transitions. [2020-08-19 00:10:37,906 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 537 transitions. Word has length 63 [2020-08-19 00:10:37,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:10:37,907 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 537 transitions. [2020-08-19 00:10:37,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:10:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 537 transitions. [2020-08-19 00:10:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-19 00:10:37,910 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:10:37,910 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] [2020-08-19 00:10:37,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 00:10:37,910 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:10:37,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:10:37,911 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-08-19 00:10:37,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:10:37,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858292667] [2020-08-19 00:10:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:10:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 00:10:37,975 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 00:10:37,976 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 00:10:37,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 00:10:38,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 12:10:38 BoogieIcfgContainer [2020-08-19 00:10:38,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 00:10:38,005 INFO L168 Benchmark]: Toolchain (without parser) took 13410.40 ms. Allocated memory was 140.5 MB in the beginning and 463.5 MB in the end (delta: 323.0 MB). Free memory was 102.5 MB in the beginning and 310.4 MB in the end (delta: -207.9 MB). Peak memory consumption was 115.1 MB. Max. memory is 7.1 GB. [2020-08-19 00:10:38,006 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 00:10:38,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.33 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 174.0 MB in the end (delta: -71.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-08-19 00:10:38,008 INFO L168 Benchmark]: Boogie Preprocessor took 94.11 ms. Allocated memory is still 203.9 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-19 00:10:38,009 INFO L168 Benchmark]: RCFGBuilder took 1258.76 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 169.9 MB in the beginning and 197.3 MB in the end (delta: -27.4 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-08-19 00:10:38,010 INFO L168 Benchmark]: TraceAbstraction took 11377.52 ms. Allocated memory was 234.9 MB in the beginning and 463.5 MB in the end (delta: 228.6 MB). Free memory was 197.3 MB in the beginning and 310.4 MB in the end (delta: -113.1 MB). Peak memory consumption was 115.5 MB. Max. memory is 7.1 GB. [2020-08-19 00:10:38,014 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.33 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 174.0 MB in the end (delta: -71.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.11 ms. Allocated memory is still 203.9 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1258.76 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 169.9 MB in the beginning and 197.3 MB in the end (delta: -27.4 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11377.52 ms. Allocated memory was 234.9 MB in the beginning and 463.5 MB in the end (delta: 228.6 MB). Free memory was 197.3 MB in the beginning and 310.4 MB in the end (delta: -113.1 MB). Peak memory consumption was 115.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 636 SDslu, 358 SDs, 0 SdLazy, 1778 SolverSat, 351 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 61524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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...