/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 16:07:00,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 16:07:00,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 16:07:00,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 16:07:00,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 16:07:00,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 16:07:00,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 16:07:00,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 16:07:00,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 16:07:00,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 16:07:00,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 16:07:00,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 16:07:00,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 16:07:00,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 16:07:00,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 16:07:00,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 16:07:00,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 16:07:00,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 16:07:00,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 16:07:00,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 16:07:00,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 16:07:00,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 16:07:00,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 16:07:00,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 16:07:00,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 16:07:00,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 16:07:00,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 16:07:00,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 16:07:00,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 16:07:00,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 16:07:00,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 16:07:00,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 16:07:00,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 16:07:00,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 16:07:00,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 16:07:00,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 16:07:00,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 16:07:00,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 16:07:00,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 16:07:00,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 16:07:00,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 16:07:00,658 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 16:07:00,693 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 16:07:00,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 16:07:00,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 16:07:00,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 16:07:00,696 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 16:07:00,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 16:07:00,696 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 16:07:00,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 16:07:00,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 16:07:00,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 16:07:00,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 16:07:00,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 16:07:00,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 16:07:00,698 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 16:07:00,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 16:07:00,699 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 16:07:00,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 16:07:00,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 16:07:00,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 16:07:00,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 16:07:00,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 16:07:00,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:07:00,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 16:07:00,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 16:07:00,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 16:07:00,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 16:07:00,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 16:07:00,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 16:07:00,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 16:07:00,702 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 [2020-08-18 16:07:01,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 16:07:01,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 16:07:01,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 16:07:01,030 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 16:07:01,031 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 16:07:01,032 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-08-18 16:07:01,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30e9c26f2/34886acc3ab040ab9faf01d16f2d1b3e/FLAGec6ab71e2 [2020-08-18 16:07:01,580 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 16:07:01,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-08-18 16:07:01,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30e9c26f2/34886acc3ab040ab9faf01d16f2d1b3e/FLAGec6ab71e2 [2020-08-18 16:07:01,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30e9c26f2/34886acc3ab040ab9faf01d16f2d1b3e [2020-08-18 16:07:01,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 16:07:01,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 16:07:01,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 16:07:01,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 16:07:01,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 16:07:01,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:07:01" (1/1) ... [2020-08-18 16:07:01,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7331a2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:01, skipping insertion in model container [2020-08-18 16:07:01,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:07:01" (1/1) ... [2020-08-18 16:07:01,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 16:07:02,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 16:07:02,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:07:02,678 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 16:07:02,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:07:02,830 INFO L208 MainTranslator]: Completed translation [2020-08-18 16:07:02,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02 WrapperNode [2020-08-18 16:07:02,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 16:07:02,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 16:07:02,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 16:07:02,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 16:07:02,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (1/1) ... [2020-08-18 16:07:02,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (1/1) ... [2020-08-18 16:07:02,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (1/1) ... [2020-08-18 16:07:02,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (1/1) ... [2020-08-18 16:07:02,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (1/1) ... [2020-08-18 16:07:02,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (1/1) ... [2020-08-18 16:07:02,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (1/1) ... [2020-08-18 16:07:02,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 16:07:02,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 16:07:02,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 16:07:02,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 16:07:02,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (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 16:07:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 16:07:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 16:07:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 16:07:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 16:07:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 16:07:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 16:07:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 16:07:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 16:07:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 16:07:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 16:07:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 16:07:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 16:07:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 16:07:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 16:07:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 16:07:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 16:07:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 16:07:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 16:07:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 16:07:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 16:07:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-18 16:07:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 16:07:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 16:07:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 16:07:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 16:07:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 16:07:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 16:07:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 16:07:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 16:07:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 16:07:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 16:07:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 16:07:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 16:07:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 16:07:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 16:07:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 16:07:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 16:07:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 16:07:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 16:07:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 16:07:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 16:07:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 16:07:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 16:07:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 16:07:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 16:07:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 16:07:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 16:07:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 16:07:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 16:07:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 16:07:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 16:07:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 16:07:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 16:07:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 16:07:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 16:07:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 16:07:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 16:07:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 16:07:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 16:07:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 16:07:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 16:07:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 16:07:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 16:07:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 16:07:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 16:07:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 16:07:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 16:07:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 16:07:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 16:07:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 16:07:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-18 16:07:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 16:07:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 16:07:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 16:07:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 16:07:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 16:07:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 16:07:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 16:07:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 16:07:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 16:07:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 16:07:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 16:07:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 16:07:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 16:07:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 16:07:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 16:07:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 16:07:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 16:07:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 16:07:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 16:07:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 16:07:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 16:07:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 16:07:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 16:07:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 16:07:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 16:07:04,204 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 16:07:04,204 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 16:07:04,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:07:04 BoogieIcfgContainer [2020-08-18 16:07:04,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 16:07:04,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 16:07:04,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 16:07:04,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 16:07:04,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 04:07:01" (1/3) ... [2020-08-18 16:07:04,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adcb56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:07:04, skipping insertion in model container [2020-08-18 16:07:04,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:07:02" (2/3) ... [2020-08-18 16:07:04,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adcb56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:07:04, skipping insertion in model container [2020-08-18 16:07:04,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:07:04" (3/3) ... [2020-08-18 16:07:04,218 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-08-18 16:07:04,229 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 16:07:04,237 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 16:07:04,251 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 16:07:04,277 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 16:07:04,277 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 16:07:04,277 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 16:07:04,277 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 16:07:04,277 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 16:07:04,278 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 16:07:04,278 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 16:07:04,278 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 16:07:04,301 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2020-08-18 16:07:04,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 16:07:04,313 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:07:04,314 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 16:07:04,314 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:07:04,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:07:04,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1986683117, now seen corresponding path program 1 times [2020-08-18 16:07:04,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:07:04,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114020991] [2020-08-18 16:07:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:07:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,006 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 16:07:05,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:07:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:07:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:07:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:07:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:07:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 16:07:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 16:07:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 16:07:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:05,098 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 16:07:05,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114020991] [2020-08-18 16:07:05,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:07:05,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 16:07:05,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839671121] [2020-08-18 16:07:05,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 16:07:05,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:07:05,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 16:07:05,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 16:07:05,130 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 3 states. [2020-08-18 16:07:06,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:07:06,390 INFO L93 Difference]: Finished difference Result 338 states and 441 transitions. [2020-08-18 16:07:06,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 16:07:06,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 16:07:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:07:06,407 INFO L225 Difference]: With dead ends: 338 [2020-08-18 16:07:06,407 INFO L226 Difference]: Without dead ends: 183 [2020-08-18 16:07:06,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 16:07:06,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-18 16:07:06,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 146. [2020-08-18 16:07:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-08-18 16:07:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2020-08-18 16:07:06,507 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 52 [2020-08-18 16:07:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:07:06,507 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2020-08-18 16:07:06,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 16:07:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2020-08-18 16:07:06,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 16:07:06,512 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:07:06,512 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 16:07:06,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 16:07:06,512 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:07:06,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:07:06,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1294331280, now seen corresponding path program 1 times [2020-08-18 16:07:06,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:07:06,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119084506] [2020-08-18 16:07:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:07:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,852 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 16:07:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:07:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:07:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:07:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:07:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:07:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 16:07:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 16:07:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 16:07:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:06,898 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 16:07:06,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119084506] [2020-08-18 16:07:06,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:07:06,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 16:07:06,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342477484] [2020-08-18 16:07:06,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 16:07:06,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:07:06,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 16:07:06,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 16:07:06,902 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 4 states. [2020-08-18 16:07:07,307 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 16:07:08,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:07:08,209 INFO L93 Difference]: Finished difference Result 261 states and 320 transitions. [2020-08-18 16:07:08,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 16:07:08,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 16:07:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:07:08,214 INFO L225 Difference]: With dead ends: 261 [2020-08-18 16:07:08,214 INFO L226 Difference]: Without dead ends: 167 [2020-08-18 16:07:08,216 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 16:07:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-08-18 16:07:08,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 137. [2020-08-18 16:07:08,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-08-18 16:07:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2020-08-18 16:07:08,258 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 53 [2020-08-18 16:07:08,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:07:08,258 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2020-08-18 16:07:08,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 16:07:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2020-08-18 16:07:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-18 16:07:08,261 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:07:08,261 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 16:07:08,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 16:07:08,262 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:07:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:07:08,262 INFO L82 PathProgramCache]: Analyzing trace with hash 89991443, now seen corresponding path program 1 times [2020-08-18 16:07:08,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:07:08,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297089206] [2020-08-18 16:07:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:07:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,557 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 16:07:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:07:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:07:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:07:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:07:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:07:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 16:07:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 16:07:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 16:07:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:08,727 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 16:07:08,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297089206] [2020-08-18 16:07:08,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:07:08,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 16:07:08,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208659857] [2020-08-18 16:07:08,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 16:07:08,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:07:08,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 16:07:08,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 16:07:08,735 INFO L87 Difference]: Start difference. First operand 137 states and 161 transitions. Second operand 8 states. [2020-08-18 16:07:09,040 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 16:07:09,354 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 16:07:09,623 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 16:07:09,845 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 16:07:10,616 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 16:07:12,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:07:12,708 INFO L93 Difference]: Finished difference Result 476 states and 591 transitions. [2020-08-18 16:07:12,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 16:07:12,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-18 16:07:12,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:07:12,714 INFO L225 Difference]: With dead ends: 476 [2020-08-18 16:07:12,714 INFO L226 Difference]: Without dead ends: 363 [2020-08-18 16:07:12,716 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 16:07:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-08-18 16:07:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 294. [2020-08-18 16:07:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-08-18 16:07:12,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 357 transitions. [2020-08-18 16:07:12,837 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 357 transitions. Word has length 58 [2020-08-18 16:07:12,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:07:12,838 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 357 transitions. [2020-08-18 16:07:12,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 16:07:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 357 transitions. [2020-08-18 16:07:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 16:07:12,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:07:12,849 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 16:07:12,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 16:07:12,851 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:07:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:07:12,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1771452602, now seen corresponding path program 1 times [2020-08-18 16:07:12,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:07:12,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774659874] [2020-08-18 16:07:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:07:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,214 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 16:07:13,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:07:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:07:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 16:07:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:07:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:07:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 16:07:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 16:07:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 16:07:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 16:07:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:07:13,335 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 16:07:13,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774659874] [2020-08-18 16:07:13,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:07:13,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 16:07:13,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729899878] [2020-08-18 16:07:13,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 16:07:13,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:07:13,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 16:07:13,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 16:07:13,338 INFO L87 Difference]: Start difference. First operand 294 states and 357 transitions. Second operand 8 states. [2020-08-18 16:07:13,717 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 16:07:15,079 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 16:07:15,488 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 16:07:15,756 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 16:07:15,996 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 16:07:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:07:16,999 INFO L93 Difference]: Finished difference Result 913 states and 1199 transitions. [2020-08-18 16:07:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 16:07:17,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 16:07:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:07:17,008 INFO L225 Difference]: With dead ends: 913 [2020-08-18 16:07:17,008 INFO L226 Difference]: Without dead ends: 643 [2020-08-18 16:07:17,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-18 16:07:17,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-08-18 16:07:17,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 569. [2020-08-18 16:07:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-08-18 16:07:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 703 transitions. [2020-08-18 16:07:17,132 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 703 transitions. Word has length 63 [2020-08-18 16:07:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:07:17,133 INFO L479 AbstractCegarLoop]: Abstraction has 569 states and 703 transitions. [2020-08-18 16:07:17,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 16:07:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 703 transitions. [2020-08-18 16:07:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 16:07:17,136 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:07:17,137 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 16:07:17,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 16:07:17,137 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:07:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:07:17,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1282483756, now seen corresponding path program 1 times [2020-08-18 16:07:17,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:07:17,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584754413] [2020-08-18 16:07:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:07:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 16:07:17,192 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 16:07:17,192 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 16:07:17,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 16:07:17,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 04:07:17 BoogieIcfgContainer [2020-08-18 16:07:17,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 16:07:17,222 INFO L168 Benchmark]: Toolchain (without parser) took 15262.14 ms. Allocated memory was 147.8 MB in the beginning and 451.4 MB in the end (delta: 303.6 MB). Free memory was 103.0 MB in the beginning and 243.1 MB in the end (delta: -140.2 MB). Peak memory consumption was 163.4 MB. Max. memory is 7.1 GB. [2020-08-18 16:07:17,223 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 121.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-18 16:07:17,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 871.17 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 102.5 MB in the beginning and 172.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-08-18 16:07:17,224 INFO L168 Benchmark]: Boogie Preprocessor took 128.96 ms. Allocated memory is still 206.6 MB. Free memory was 172.4 MB in the beginning and 167.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-18 16:07:17,225 INFO L168 Benchmark]: RCFGBuilder took 1248.69 ms. Allocated memory was 206.6 MB in the beginning and 232.8 MB in the end (delta: 26.2 MB). Free memory was 167.6 MB in the beginning and 187.5 MB in the end (delta: -19.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. [2020-08-18 16:07:17,226 INFO L168 Benchmark]: TraceAbstraction took 13008.89 ms. Allocated memory was 232.8 MB in the beginning and 451.4 MB in the end (delta: 218.6 MB). Free memory was 187.5 MB in the beginning and 243.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 163.0 MB. Max. memory is 7.1 GB. [2020-08-18 16:07:17,230 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 121.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 871.17 ms. Allocated memory was 147.8 MB in the beginning and 206.6 MB in the end (delta: 58.7 MB). Free memory was 102.5 MB in the beginning and 172.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.96 ms. Allocated memory is still 206.6 MB. Free memory was 172.4 MB in the beginning and 167.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1248.69 ms. Allocated memory was 206.6 MB in the beginning and 232.8 MB in the end (delta: 26.2 MB). Free memory was 167.6 MB in the beginning and 187.5 MB in the end (delta: -19.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13008.89 ms. Allocated memory was 232.8 MB in the beginning and 451.4 MB in the end (delta: 218.6 MB). Free memory was 187.5 MB in the beginning and 243.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 163.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 557 SDtfs, 890 SDslu, 392 SDs, 0 SdLazy, 2132 SolverSat, 558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s 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=569occurred 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, 210 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s 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...