/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=LOWLEXORDER -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 0.1.25-5644d1e-m [2020-08-18 18:30:59,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 18:30:59,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 18:30:59,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 18:30:59,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 18:30:59,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 18:30:59,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 18:30:59,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 18:30:59,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 18:30:59,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 18:30:59,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 18:30:59,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 18:30:59,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 18:30:59,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 18:30:59,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 18:30:59,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 18:30:59,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 18:30:59,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 18:30:59,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 18:30:59,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 18:30:59,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 18:30:59,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 18:30:59,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 18:30:59,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 18:30:59,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 18:30:59,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 18:30:59,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 18:30:59,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 18:30:59,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 18:30:59,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 18:30:59,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 18:30:59,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 18:30:59,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 18:30:59,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 18:30:59,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 18:30:59,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 18:30:59,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 18:30:59,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 18:30:59,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 18:30:59,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 18:30:59,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 18:30:59,383 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 [2020-08-18 18:30:59,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 18:30:59,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 18:30:59,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 18:30:59,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 18:30:59,408 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 18:30:59,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 18:30:59,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 18:30:59,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 18:30:59,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 18:30:59,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 18:30:59,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 18:30:59,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 18:30:59,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 18:30:59,409 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 18:30:59,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 18:30:59,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 18:30:59,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 18:30:59,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 18:30:59,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 18:30:59,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 18:30:59,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 18:30:59,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 18:30:59,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 18:30:59,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 18:30:59,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 18:30:59,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 18:30:59,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 18:30:59,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 18:30:59,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 18:30:59,413 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=LOWLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=LOWLEXORDER; [2020-08-18 18:30:59,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 18:30:59,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 18:30:59,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 18:30:59,713 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 18:30:59,714 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 18:30:59,715 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-08-18 18:30:59,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b9695696/5f4d85c538ba48a1a595ad8d720cf223/FLAG2b68825cd [2020-08-18 18:31:00,243 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 18:31:00,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-08-18 18:31:00,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b9695696/5f4d85c538ba48a1a595ad8d720cf223/FLAG2b68825cd [2020-08-18 18:31:00,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b9695696/5f4d85c538ba48a1a595ad8d720cf223 [2020-08-18 18:31:00,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 18:31:00,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 18:31:00,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 18:31:00,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 18:31:00,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 18:31:00,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:31:00" (1/1) ... [2020-08-18 18:31:00,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ab6a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:00, skipping insertion in model container [2020-08-18 18:31:00,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:31:00" (1/1) ... [2020-08-18 18:31:00,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 18:31:00,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 18:31:01,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:31:01,153 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 18:31:01,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:31:01,264 INFO L208 MainTranslator]: Completed translation [2020-08-18 18:31:01,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01 WrapperNode [2020-08-18 18:31:01,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 18:31:01,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 18:31:01,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 18:31:01,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 18:31:01,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (1/1) ... [2020-08-18 18:31:01,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (1/1) ... [2020-08-18 18:31:01,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (1/1) ... [2020-08-18 18:31:01,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (1/1) ... [2020-08-18 18:31:01,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (1/1) ... [2020-08-18 18:31:01,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (1/1) ... [2020-08-18 18:31:01,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (1/1) ... [2020-08-18 18:31:01,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 18:31:01,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 18:31:01,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 18:31:01,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 18:31:01,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (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 [2020-08-18 18:31:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 18:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 18:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 18:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 18:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 18:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 18:31:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 18:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 18:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 18:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 18:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 18:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 18:31:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 18:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 18:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 18:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 18:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 18:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 18:31:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 18:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 18:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 18:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 18:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 18:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 18:31:01,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 18:31:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 18:31:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 18:31:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 18:31:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 18:31:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 18:31:01,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 18:31:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 18:31:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 18:31:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 18:31:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 18:31:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 18:31:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 18:31:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 18:31:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 18:31:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 18:31:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 18:31:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 18:31:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 18:31:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 18:31:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 18:31:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 18:31:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 18:31:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 18:31:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 18:31:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 18:31:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 18:31:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 18:31:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 18:31:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 18:31:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 18:31:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 18:31:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 18:31:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 18:31:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 18:31:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 18:31:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 18:31:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 18:31:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 18:31:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 18:31:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 18:31:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 18:31:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 18:31:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 18:31:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 18:31:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 18:31:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 18:31:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 18:31:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 18:31:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 18:31:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 18:31:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 18:31:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 18:31:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 18:31:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 18:31:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 18:31:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 18:31:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 18:31:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 18:31:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 18:31:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 18:31:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 18:31:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 18:31:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 18:31:02,511 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 18:31:02,511 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 18:31:02,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:31:02 BoogieIcfgContainer [2020-08-18 18:31:02,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 18:31:02,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 18:31:02,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 18:31:02,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 18:31:02,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 06:31:00" (1/3) ... [2020-08-18 18:31:02,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc6b6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:31:02, skipping insertion in model container [2020-08-18 18:31:02,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:31:01" (2/3) ... [2020-08-18 18:31:02,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc6b6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:31:02, skipping insertion in model container [2020-08-18 18:31:02,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:31:02" (3/3) ... [2020-08-18 18:31:02,530 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-08-18 18:31:02,540 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 18:31:02,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 18:31:02,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 18:31:02,586 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 18:31:02,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 18:31:02,587 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 18:31:02,587 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 18:31:02,587 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 18:31:02,588 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 18:31:02,588 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 18:31:02,588 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 18:31:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-08-18 18:31:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 18:31:02,619 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:02,620 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] [2020-08-18 18:31:02,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:02,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:02,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times [2020-08-18 18:31:02,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:02,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864737393] [2020-08-18 18:31:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,232 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:03,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 18:31:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 18:31:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 18:31:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:03,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:03,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864737393] [2020-08-18 18:31:03,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:03,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 18:31:03,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051436930] [2020-08-18 18:31:03,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 18:31:03,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:03,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 18:31:03,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 18:31:03,343 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2020-08-18 18:31:04,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:04,416 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-08-18 18:31:04,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 18:31:04,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 18:31:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:04,432 INFO L225 Difference]: With dead ends: 272 [2020-08-18 18:31:04,433 INFO L226 Difference]: Without dead ends: 148 [2020-08-18 18:31:04,438 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 [2020-08-18 18:31:04,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-18 18:31:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-08-18 18:31:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-18 18:31:04,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-08-18 18:31:04,520 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-08-18 18:31:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:04,520 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-08-18 18:31:04,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 18:31:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-08-18 18:31:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 18:31:04,524 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:04,525 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] [2020-08-18 18:31:04,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 18:31:04,525 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:04,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:04,526 INFO L82 PathProgramCache]: Analyzing trace with hash 883286197, now seen corresponding path program 1 times [2020-08-18 18:31:04,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:04,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762401330] [2020-08-18 18:31:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,890 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:04,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 18:31:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 18:31:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 18:31:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:04,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762401330] [2020-08-18 18:31:04,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:04,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 18:31:04,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021617124] [2020-08-18 18:31:04,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 18:31:04,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:04,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 18:31:04,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 18:31:04,963 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-08-18 18:31:05,419 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 18:31:06,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:06,125 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-08-18 18:31:06,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 18:31:06,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 18:31:06,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:06,130 INFO L225 Difference]: With dead ends: 195 [2020-08-18 18:31:06,130 INFO L226 Difference]: Without dead ends: 132 [2020-08-18 18:31:06,131 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 [2020-08-18 18:31:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-08-18 18:31:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-08-18 18:31:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-08-18 18:31:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-08-18 18:31:06,172 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-08-18 18:31:06,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:06,172 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-08-18 18:31:06,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 18:31:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-08-18 18:31:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-18 18:31:06,175 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:06,175 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] [2020-08-18 18:31:06,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 18:31:06,176 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:06,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:06,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2055351283, now seen corresponding path program 1 times [2020-08-18 18:31:06,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:06,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483789011] [2020-08-18 18:31:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,526 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:06,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 18:31:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 18:31:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 18:31:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:06,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483789011] [2020-08-18 18:31:06,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:06,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 18:31:06,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114660773] [2020-08-18 18:31:06,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:31:06,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:06,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:31:06,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:31:06,648 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-08-18 18:31:07,015 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 18:31:07,315 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:07,543 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:07,812 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:08,542 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 18:31:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:10,027 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-08-18 18:31:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 18:31:10,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-18 18:31:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:10,033 INFO L225 Difference]: With dead ends: 375 [2020-08-18 18:31:10,033 INFO L226 Difference]: Without dead ends: 293 [2020-08-18 18:31:10,034 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 [2020-08-18 18:31:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-08-18 18:31:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-08-18 18:31:10,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-08-18 18:31:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-08-18 18:31:10,140 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-08-18 18:31:10,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:10,141 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-08-18 18:31:10,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:31:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-08-18 18:31:10,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 18:31:10,144 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:10,144 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] [2020-08-18 18:31:10,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 18:31:10,145 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:10,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:10,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1417899682, now seen corresponding path program 1 times [2020-08-18 18:31:10,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:10,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814286663] [2020-08-18 18:31:10,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,429 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 18:31:10,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:31:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:31:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 18:31:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:31:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:31:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 18:31:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 18:31:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 18:31:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:31:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:31:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 18:31:10,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814286663] [2020-08-18 18:31:10,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:31:10,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 18:31:10,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175397605] [2020-08-18 18:31:10,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:31:10,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:31:10,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:31:10,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:31:10,543 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-08-18 18:31:10,912 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 18:31:12,209 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:12,527 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:12,797 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 18:31:13,048 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 18:31:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:31:13,660 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-08-18 18:31:13,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 18:31:13,660 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 18:31:13,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:31:13,667 INFO L225 Difference]: With dead ends: 711 [2020-08-18 18:31:13,668 INFO L226 Difference]: Without dead ends: 503 [2020-08-18 18:31:13,670 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 [2020-08-18 18:31:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-08-18 18:31:13,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-08-18 18:31:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-08-18 18:31:13,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-08-18 18:31:13,783 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-08-18 18:31:13,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:31:13,784 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-08-18 18:31:13,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:31:13,784 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-08-18 18:31:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 18:31:13,788 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:31:13,789 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] [2020-08-18 18:31:13,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 18:31:13,789 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:31:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:31:13,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1714463836, now seen corresponding path program 1 times [2020-08-18 18:31:13,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:31:13,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394996196] [2020-08-18 18:31:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:31:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 18:31:13,852 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 18:31:13,852 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 18:31:13,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 18:31:13,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 06:31:13 BoogieIcfgContainer [2020-08-18 18:31:13,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 18:31:13,878 INFO L168 Benchmark]: Toolchain (without parser) took 13305.24 ms. Allocated memory was 138.4 MB in the beginning and 431.0 MB in the end (delta: 292.6 MB). Free memory was 100.2 MB in the beginning and 137.6 MB in the end (delta: -37.4 MB). Peak memory consumption was 255.1 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:13,878 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 18:31:13,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.92 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 169.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:13,880 INFO L168 Benchmark]: Boogie Preprocessor took 131.86 ms. Allocated memory is still 201.9 MB. Free memory was 169.5 MB in the beginning and 165.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:13,881 INFO L168 Benchmark]: RCFGBuilder took 1120.11 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 165.4 MB in the beginning and 196.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:13,882 INFO L168 Benchmark]: TraceAbstraction took 11353.83 ms. Allocated memory was 233.3 MB in the beginning and 431.0 MB in the end (delta: 197.7 MB). Free memory was 196.9 MB in the beginning and 137.6 MB in the end (delta: 59.3 MB). Peak memory consumption was 257.0 MB. Max. memory is 7.1 GB. [2020-08-18 18:31:13,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.92 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 169.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.86 ms. Allocated memory is still 201.9 MB. Free memory was 169.5 MB in the beginning and 165.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1120.11 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 165.4 MB in the beginning and 196.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11353.83 ms. Allocated memory was 233.3 MB in the beginning and 431.0 MB in the end (delta: 197.7 MB). Free memory was 196.9 MB in the beginning and 137.6 MB in the end (delta: 59.3 MB). Peak memory consumption was 257.0 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; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 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: 444 SDtfs, 588 SDslu, 377 SDs, 0 SdLazy, 1731 SolverSat, 371 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=437occurred 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, 1.5s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 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...