/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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:43:52,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:43:52,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:43:52,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:43:52,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:43:52,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:43:52,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:43:52,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:43:52,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:43:52,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:43:52,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:43:52,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:43:52,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:43:52,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:43:52,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:43:52,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:43:52,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:43:52,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:43:52,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:43:52,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:43:52,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:43:52,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:43:52,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:43:52,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:43:52,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:43:52,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:43:52,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:43:52,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:43:52,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:43:52,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:43:52,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:43:52,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:43:52,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:43:52,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:43:52,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:43:52,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:43:52,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:43:52,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:43:52,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:43:52,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:43:52,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:43:52,131 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 [2020-07-07 10:43:52,154 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:43:52,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:43:52,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:43:52,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:43:52,156 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:43:52,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:43:52,157 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:43:52,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:43:52,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:43:52,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:43:52,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:43:52,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:43:52,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:43:52,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:43:52,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:43:52,159 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:43:52,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:43:52,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:43:52,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:43:52,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:43:52,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:43:52,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:43:52,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:43:52,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:43:52,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:43:52,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:43:52,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:43:52,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:43:52,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:43:52,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:43:52,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:43:52,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:43:52,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:43:52,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:43:52,458 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:43:52,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-07-07 10:43:52,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05864894b/01ec34c1db3449949d19ae5eb8c44c0c/FLAGc916ad8b1 [2020-07-07 10:43:53,062 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:43:53,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-07-07 10:43:53,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05864894b/01ec34c1db3449949d19ae5eb8c44c0c/FLAGc916ad8b1 [2020-07-07 10:43:53,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05864894b/01ec34c1db3449949d19ae5eb8c44c0c [2020-07-07 10:43:53,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:43:53,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:43:53,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:43:53,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:43:53,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:43:53,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391171d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53, skipping insertion in model container [2020-07-07 10:43:53,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:43:53,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:43:53,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:43:53,673 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:43:53,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:43:53,895 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:43:53,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53 WrapperNode [2020-07-07 10:43:53,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:43:53,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:43:53,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:43:53,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:43:53,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (1/1) ... [2020-07-07 10:43:53,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:43:53,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:43:53,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:43:53,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:43:53,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (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 [2020-07-07 10:43:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:43:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:43:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:43:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:43:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:43:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:43:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:43:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:43:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:43:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:43:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:43:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:43:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:43:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:43:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:43:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 10:43:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:43:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:43:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:43:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:43:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:43:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:43:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:43:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:43:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:43:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:43:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 10:43:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:43:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:43:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:43:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:43:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:43:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:43:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:43:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:43:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:43:54,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 10:43:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:43:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:43:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:43:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:43:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:43:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:43:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:43:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:43:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:43:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:43:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:43:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:43:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:43:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:43:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:43:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:43:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:43:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:43:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:43:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:43:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:43:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:43:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:43:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:43:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:43:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:43:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 10:43:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:43:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:43:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:43:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:43:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:43:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:43:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:43:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:43:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 10:43:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:43:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:43:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 10:43:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:43:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:43:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:43:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:43:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:43:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:43:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:43:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:43:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:43:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:43:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:43:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:43:54,953 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:43:54,954 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:43:54,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:43:54 BoogieIcfgContainer [2020-07-07 10:43:54,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:43:54,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:43:54,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:43:54,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:43:54,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:43:53" (1/3) ... [2020-07-07 10:43:54,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3896207b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:43:54, skipping insertion in model container [2020-07-07 10:43:54,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:43:53" (2/3) ... [2020-07-07 10:43:54,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3896207b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:43:54, skipping insertion in model container [2020-07-07 10:43:54,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:43:54" (3/3) ... [2020-07-07 10:43:54,967 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-07-07 10:43:54,977 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:43:54,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:43:54,999 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:43:55,022 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:43:55,023 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:43:55,023 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:43:55,023 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:43:55,023 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:43:55,024 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:43:55,024 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:43:55,024 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:43:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-07-07 10:43:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:43:55,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:55,057 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] [2020-07-07 10:43:55,057 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:55,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:55,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1926070200, now seen corresponding path program 1 times [2020-07-07 10:43:55,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:55,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208183229] [2020-07-07 10:43:55,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,721 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:55,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208183229] [2020-07-07 10:43:55,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:55,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:43:55,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035378062] [2020-07-07 10:43:55,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:43:55,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:55,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:43:55,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:43:55,821 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-07-07 10:43:56,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:43:56,788 INFO L93 Difference]: Finished difference Result 259 states and 341 transitions. [2020-07-07 10:43:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:43:56,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-07 10:43:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:43:56,803 INFO L225 Difference]: With dead ends: 259 [2020-07-07 10:43:56,804 INFO L226 Difference]: Without dead ends: 140 [2020-07-07 10:43:56,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:43:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-07 10:43:56,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 110. [2020-07-07 10:43:56,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-07 10:43:56,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2020-07-07 10:43:56,892 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 52 [2020-07-07 10:43:56,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:43:56,893 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2020-07-07 10:43:56,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:43:56,893 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2020-07-07 10:43:56,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 10:43:56,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:56,897 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] [2020-07-07 10:43:56,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:43:56,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:56,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:56,898 INFO L82 PathProgramCache]: Analyzing trace with hash 475112747, now seen corresponding path program 1 times [2020-07-07 10:43:56,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:56,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286852356] [2020-07-07 10:43:56,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,249 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:57,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:57,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286852356] [2020-07-07 10:43:57,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:57,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:43:57,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328990553] [2020-07-07 10:43:57,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:43:57,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:57,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:43:57,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:43:57,337 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 4 states. [2020-07-07 10:43:57,740 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:43:58,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:43:58,402 INFO L93 Difference]: Finished difference Result 192 states and 232 transitions. [2020-07-07 10:43:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:43:58,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-07 10:43:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:43:58,407 INFO L225 Difference]: With dead ends: 192 [2020-07-07 10:43:58,407 INFO L226 Difference]: Without dead ends: 124 [2020-07-07 10:43:58,408 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 [2020-07-07 10:43:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-07 10:43:58,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-07-07 10:43:58,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-07 10:43:58,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-07-07 10:43:58,442 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 53 [2020-07-07 10:43:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:43:58,442 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-07-07 10:43:58,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:43:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-07-07 10:43:58,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 10:43:58,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:43:58,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:43:58,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:43:58,445 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:43:58,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:43:58,446 INFO L82 PathProgramCache]: Analyzing trace with hash 40226853, now seen corresponding path program 1 times [2020-07-07 10:43:58,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:43:58,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549037608] [2020-07-07 10:43:58,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:43:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,730 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:43:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:43:58,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:43:58,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549037608] [2020-07-07 10:43:58,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:43:58,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:43:58,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886036990] [2020-07-07 10:43:58,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:43:58,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:43:58,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:43:58,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:43:58,847 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 8 states. [2020-07-07 10:43:59,239 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:43:59,533 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:43:59,775 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:00,018 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:00,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:00,902 INFO L93 Difference]: Finished difference Result 201 states and 246 transitions. [2020-07-07 10:44:00,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:44:00,903 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-07 10:44:00,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:00,906 INFO L225 Difference]: With dead ends: 201 [2020-07-07 10:44:00,906 INFO L226 Difference]: Without dead ends: 124 [2020-07-07 10:44:00,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:44:00,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-07 10:44:00,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 101. [2020-07-07 10:44:00,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-07 10:44:00,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-07-07 10:44:00,933 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 57 [2020-07-07 10:44:00,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:00,933 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-07-07 10:44:00,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:44:00,934 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-07-07 10:44:00,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-07 10:44:00,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:00,936 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] [2020-07-07 10:44:00,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:44:00,936 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:00,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:00,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1164680110, now seen corresponding path program 1 times [2020-07-07 10:44:00,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:00,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609472184] [2020-07-07 10:44:00,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,210 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:44:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:44:01,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609472184] [2020-07-07 10:44:01,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:44:01,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:44:01,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449398258] [2020-07-07 10:44:01,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:44:01,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:44:01,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:44:01,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:44:01,307 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 8 states. [2020-07-07 10:44:01,669 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:44:02,760 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:03,052 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:03,289 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:03,528 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:44:04,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:04,035 INFO L93 Difference]: Finished difference Result 299 states and 390 transitions. [2020-07-07 10:44:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 10:44:04,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-07-07 10:44:04,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:04,044 INFO L225 Difference]: With dead ends: 299 [2020-07-07 10:44:04,044 INFO L226 Difference]: Without dead ends: 222 [2020-07-07 10:44:04,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:44:04,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-07-07 10:44:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 176. [2020-07-07 10:44:04,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-07-07 10:44:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 207 transitions. [2020-07-07 10:44:04,092 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 207 transitions. Word has length 65 [2020-07-07 10:44:04,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:04,093 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 207 transitions. [2020-07-07 10:44:04,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:44:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 207 transitions. [2020-07-07 10:44:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-07 10:44:04,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:04,096 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] [2020-07-07 10:44:04,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:44:04,096 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:04,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1251292780, now seen corresponding path program 1 times [2020-07-07 10:44:04,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:04,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633224066] [2020-07-07 10:44:04,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,358 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:44:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:44:04,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633224066] [2020-07-07 10:44:04,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:44:04,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:44:04,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733179460] [2020-07-07 10:44:04,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:44:04,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:44:04,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:44:04,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:44:04,455 INFO L87 Difference]: Start difference. First operand 176 states and 207 transitions. Second operand 6 states. [2020-07-07 10:44:04,771 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:44:05,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:05,250 INFO L93 Difference]: Finished difference Result 289 states and 355 transitions. [2020-07-07 10:44:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 10:44:05,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-07-07 10:44:05,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:05,252 INFO L225 Difference]: With dead ends: 289 [2020-07-07 10:44:05,253 INFO L226 Difference]: Without dead ends: 137 [2020-07-07 10:44:05,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:44:05,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-07-07 10:44:05,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2020-07-07 10:44:05,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-07 10:44:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 140 transitions. [2020-07-07 10:44:05,284 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 140 transitions. Word has length 69 [2020-07-07 10:44:05,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:05,285 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 140 transitions. [2020-07-07 10:44:05,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:44:05,285 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 140 transitions. [2020-07-07 10:44:05,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-07 10:44:05,286 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:05,287 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] [2020-07-07 10:44:05,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:44:05,287 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:05,288 INFO L82 PathProgramCache]: Analyzing trace with hash 558485620, now seen corresponding path program 1 times [2020-07-07 10:44:05,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:05,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146899060] [2020-07-07 10:44:05,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:44:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:44:05,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:44:05,446 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:44:05,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:44:05,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:44:05 BoogieIcfgContainer [2020-07-07 10:44:05,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:44:05,592 INFO L168 Benchmark]: Toolchain (without parser) took 12282.03 ms. Allocated memory was 138.4 MB in the beginning and 433.6 MB in the end (delta: 295.2 MB). Free memory was 102.4 MB in the beginning and 310.5 MB in the end (delta: -208.1 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:05,593 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 10:44:05,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.57 ms. Allocated memory was 138.4 MB in the beginning and 204.5 MB in the end (delta: 66.1 MB). Free memory was 102.2 MB in the beginning and 172.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:05,595 INFO L168 Benchmark]: Boogie Preprocessor took 82.97 ms. Allocated memory is still 204.5 MB. Free memory was 172.8 MB in the beginning and 169.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:05,596 INFO L168 Benchmark]: RCFGBuilder took 979.41 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 168.3 MB in the beginning and 200.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:05,597 INFO L168 Benchmark]: TraceAbstraction took 10630.45 ms. Allocated memory was 237.0 MB in the beginning and 433.6 MB in the end (delta: 196.6 MB). Free memory was 200.7 MB in the beginning and 310.5 MB in the end (delta: -109.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:05,600 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 584.57 ms. Allocated memory was 138.4 MB in the beginning and 204.5 MB in the end (delta: 66.1 MB). Free memory was 102.2 MB in the beginning and 172.8 MB in the end (delta: -70.6 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.97 ms. Allocated memory is still 204.5 MB. Free memory was 172.8 MB in the beginning and 169.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 979.41 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 168.3 MB in the beginning and 200.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10630.45 ms. Allocated memory was 237.0 MB in the beginning and 433.6 MB in the end (delta: 196.6 MB). Free memory was 200.7 MB in the beginning and 310.5 MB in the end (delta: -109.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L811] int retValue_acc ; [L812] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L816] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L818] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L822] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L823] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L523] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L525] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L535] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L535] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=-2, waterLevel=2] [L566] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L590] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L619] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L637] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L876] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L876] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L882] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L882] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L886] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L886] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L892] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 444 SDtfs, 684 SDslu, 242 SDs, 0 SdLazy, 1325 SolverSat, 410 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred 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, 5 MinimizatonAttempts, 134 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 82382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...