/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:32:00,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:32:00,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:32:00,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:32:00,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:32:00,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:32:00,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:32:00,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:32:00,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:32:00,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:32:00,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:32:00,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:32:00,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:32:00,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:32:00,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:32:00,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:32:00,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:32:00,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:32:00,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:32:00,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:32:00,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:32:00,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:32:00,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:32:00,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:32:00,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:32:00,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:32:00,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:32:00,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:32:00,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:32:00,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:32:00,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:32:00,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:32:00,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:32:00,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:32:00,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:32:00,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:32:00,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:32:00,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:32:00,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:32:00,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:32:00,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:32:00,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:32:00,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:32:00,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:32:01,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:32:01,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:32:01,000 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:32:01,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:32:01,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:32:01,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:32:01,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:32:01,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:32:01,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:32:01,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:32:01,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:32:01,004 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:32:01,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:32:01,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:32:01,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:32:01,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:32:01,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:32:01,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:32:01,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:32:01,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:32:01,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:32:01,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:32:01,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:32:01,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:32:01,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:32:01,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:32:01,008 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:32:01,008 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:32:01,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:32:01,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:32:01,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:32:01,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:32:01,354 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:32:01,355 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-07-17 11:32:01,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dea19712/8370f556312349f3af8e5ac010bd2668/FLAGaad7f40ce [2020-07-17 11:32:01,935 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:32:01,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-07-17 11:32:01,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dea19712/8370f556312349f3af8e5ac010bd2668/FLAGaad7f40ce [2020-07-17 11:32:02,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dea19712/8370f556312349f3af8e5ac010bd2668 [2020-07-17 11:32:02,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:32:02,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:32:02,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:32:02,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:32:02,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:32:02,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:02,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a32e275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02, skipping insertion in model container [2020-07-17 11:32:02,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:02,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:32:02,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:32:02,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:32:02,826 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:32:02,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:32:02,947 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:32:02,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02 WrapperNode [2020-07-17 11:32:02,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:32:02,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:32:02,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:32:02,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:32:02,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:02,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:02,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:02,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:03,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:03,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:03,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... [2020-07-17 11:32:03,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:32:03,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:32:03,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:32:03,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:32:03,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:32:03,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:32:03,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:32:03,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:32:03,111 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:32:03,111 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:32:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:32:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:32:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:32:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:32:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 11:32:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:32:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:32:03,114 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:32:03,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:32:03,115 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:32:03,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:32:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:32:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:32:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:32:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:32:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:32:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:32:03,117 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-17 11:32:03,117 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:32:03,117 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:32:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:32:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:32:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:32:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:32:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 11:32:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 11:32:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:32:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:32:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:32:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:32:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:32:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:32:03,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:32:03,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:32:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:32:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:32:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:32:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:32:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:32:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:32:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:32:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:32:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:32:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 11:32:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:32:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:32:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:32:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:32:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:32:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:32:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:32:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:32:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:32:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:32:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:32:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:32:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:32:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:32:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:32:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:32:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:32:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 11:32:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:32:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:32:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:32:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 11:32:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-17 11:32:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:32:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:32:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:32:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:32:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:32:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:32:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:32:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:32:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:32:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:32:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:32:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:32:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:32:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:32:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:32:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:32:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:32:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:32:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:32:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:32:04,212 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:32:04,212 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:32:04,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:32:04 BoogieIcfgContainer [2020-07-17 11:32:04,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:32:04,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:32:04,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:32:04,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:32:04,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:32:02" (1/3) ... [2020-07-17 11:32:04,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5da5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:32:04, skipping insertion in model container [2020-07-17 11:32:04,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:02" (2/3) ... [2020-07-17 11:32:04,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5da5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:32:04, skipping insertion in model container [2020-07-17 11:32:04,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:32:04" (3/3) ... [2020-07-17 11:32:04,226 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2020-07-17 11:32:04,238 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:32:04,246 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:32:04,258 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:32:04,282 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:32:04,282 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:32:04,282 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:32:04,282 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:32:04,282 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:32:04,283 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:32:04,283 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:32:04,283 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:32:04,307 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-07-17 11:32:04,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:32:04,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:04,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:04,319 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:04,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:04,326 INFO L82 PathProgramCache]: Analyzing trace with hash 578570237, now seen corresponding path program 1 times [2020-07-17 11:32:04,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:04,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113344929] [2020-07-17 11:32:04,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:04,973 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:05,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113344929] [2020-07-17 11:32:05,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:05,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:32:05,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595279499] [2020-07-17 11:32:05,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:32:05,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:05,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:32:05,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:32:05,165 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 3 states. [2020-07-17 11:32:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:06,352 INFO L93 Difference]: Finished difference Result 300 states and 394 transitions. [2020-07-17 11:32:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:32:06,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-17 11:32:06,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:06,375 INFO L225 Difference]: With dead ends: 300 [2020-07-17 11:32:06,376 INFO L226 Difference]: Without dead ends: 162 [2020-07-17 11:32:06,385 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 [2020-07-17 11:32:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-07-17 11:32:06,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 129. [2020-07-17 11:32:06,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-07-17 11:32:06,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2020-07-17 11:32:06,513 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2020-07-17 11:32:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:06,513 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2020-07-17 11:32:06,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:32:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2020-07-17 11:32:06,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-17 11:32:06,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:06,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:06,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:32:06,519 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:06,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:06,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1188326363, now seen corresponding path program 1 times [2020-07-17 11:32:06,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:06,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767587133] [2020-07-17 11:32:06,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,864 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:06,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767587133] [2020-07-17 11:32:06,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:06,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:32:06,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154091177] [2020-07-17 11:32:06,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:32:06,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:06,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:32:06,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:32:06,916 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 4 states. [2020-07-17 11:32:07,381 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:32:08,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:08,142 INFO L93 Difference]: Finished difference Result 229 states and 281 transitions. [2020-07-17 11:32:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:32:08,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-17 11:32:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:08,147 INFO L225 Difference]: With dead ends: 229 [2020-07-17 11:32:08,147 INFO L226 Difference]: Without dead ends: 146 [2020-07-17 11:32:08,149 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 [2020-07-17 11:32:08,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-17 11:32:08,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2020-07-17 11:32:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-17 11:32:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-07-17 11:32:08,186 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2020-07-17 11:32:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:08,187 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-07-17 11:32:08,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:32:08,187 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-07-17 11:32:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-17 11:32:08,190 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:08,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:08,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:32:08,190 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:08,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1564710697, now seen corresponding path program 1 times [2020-07-17 11:32:08,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:08,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542205751] [2020-07-17 11:32:08,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,586 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:08,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542205751] [2020-07-17 11:32:08,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:08,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:08,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132762640] [2020-07-17 11:32:08,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:08,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:08,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:08,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:08,715 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 8 states. [2020-07-17 11:32:09,104 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:09,412 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:32:09,687 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:09,915 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:11,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:11,067 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2020-07-17 11:32:11,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 11:32:11,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-17 11:32:11,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:11,072 INFO L225 Difference]: With dead ends: 242 [2020-07-17 11:32:11,073 INFO L226 Difference]: Without dead ends: 146 [2020-07-17 11:32:11,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:32:11,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-17 11:32:11,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2020-07-17 11:32:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-17 11:32:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2020-07-17 11:32:11,109 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 58 [2020-07-17 11:32:11,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:11,109 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2020-07-17 11:32:11,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2020-07-17 11:32:11,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-17 11:32:11,112 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:11,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:11,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:32:11,113 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:11,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:11,114 INFO L82 PathProgramCache]: Analyzing trace with hash -203175812, now seen corresponding path program 1 times [2020-07-17 11:32:11,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:11,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104814846] [2020-07-17 11:32:11,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,428 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:11,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104814846] [2020-07-17 11:32:11,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:11,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:11,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781911682] [2020-07-17 11:32:11,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:11,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:11,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:11,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:11,526 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 8 states. [2020-07-17 11:32:11,993 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:13,525 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:13,803 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:14,029 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:14,424 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:14,814 INFO L93 Difference]: Finished difference Result 363 states and 474 transitions. [2020-07-17 11:32:14,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 11:32:14,817 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2020-07-17 11:32:14,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:14,821 INFO L225 Difference]: With dead ends: 363 [2020-07-17 11:32:14,821 INFO L226 Difference]: Without dead ends: 267 [2020-07-17 11:32:14,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:32:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-07-17 11:32:14,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 216. [2020-07-17 11:32:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-17 11:32:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2020-07-17 11:32:14,883 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 71 [2020-07-17 11:32:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:14,883 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2020-07-17 11:32:14,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2020-07-17 11:32:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-17 11:32:14,886 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:14,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:14,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:32:14,887 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1511330786, now seen corresponding path program 1 times [2020-07-17 11:32:14,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:14,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459812460] [2020-07-17 11:32:14,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:15,074 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:32:15,074 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:32:15,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:32:15,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:32:15 BoogieIcfgContainer [2020-07-17 11:32:15,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:32:15,208 INFO L168 Benchmark]: Toolchain (without parser) took 12915.54 ms. Allocated memory was 146.3 MB in the beginning and 423.1 MB in the end (delta: 276.8 MB). Free memory was 102.7 MB in the beginning and 193.2 MB in the end (delta: -90.5 MB). Peak memory consumption was 186.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:15,209 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 11:32:15,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.90 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 170.7 MB in the end (delta: -68.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:15,213 INFO L168 Benchmark]: Boogie Preprocessor took 89.84 ms. Allocated memory is still 203.9 MB. Free memory was 170.7 MB in the beginning and 166.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:15,216 INFO L168 Benchmark]: RCFGBuilder took 1179.10 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 195.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:15,218 INFO L168 Benchmark]: TraceAbstraction took 10987.17 ms. Allocated memory was 237.5 MB in the beginning and 423.1 MB in the end (delta: 185.6 MB). Free memory was 195.6 MB in the beginning and 193.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 188.0 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:15,223 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.90 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 170.7 MB in the end (delta: -68.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.84 ms. Allocated memory is still 203.9 MB. Free memory was 170.7 MB in the beginning and 166.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.10 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 195.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10987.17 ms. Allocated memory was 237.5 MB in the beginning and 423.1 MB in the end (delta: 185.6 MB). Free memory was 195.6 MB in the beginning and 193.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 188.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L145] int cleanupTimeShifts = 4; [L286] int pumpRunning = 0; [L287] int systemActive = 1; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=167, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=141, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L224] int retValue_acc ; [L225] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L229] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L230] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L231] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L273] int retValue_acc ; [L276] retValue_acc = 1 [L277] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L231] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L231] tmp = valid_product() [L233] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L235] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L236] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L215] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L483] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L485] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L491] tmp = __VERIFIER_nondet_int() [L493] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L495] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L495] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND FALSE !(\read(tmp___2)) [L519] tmp___1 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L528] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L301] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L349] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L326] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L341] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L309] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L913] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L913] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L919] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L919] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L923] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L401] int retValue_acc ; [L404] retValue_acc = pumpRunning [L405] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L923] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L929] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 452 SDtfs, 663 SDslu, 242 SDs, 0 SdLazy, 1496 SolverSat, 429 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 136 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 309 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 65518 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...