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_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 06:06:32,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 06:06:32,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 06:06:32,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 06:06:32,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 06:06:32,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 06:06:32,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 06:06:32,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 06:06:32,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 06:06:32,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 06:06:32,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 06:06:32,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 06:06:32,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 06:06:32,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 06:06:32,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 06:06:32,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 06:06:32,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 06:06:32,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 06:06:32,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 06:06:32,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 06:06:32,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 06:06:32,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 06:06:32,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 06:06:32,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 06:06:32,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 06:06:32,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 06:06:32,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 06:06:32,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 06:06:32,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 06:06:32,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 06:06:32,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 06:06:32,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 06:06:32,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 06:06:32,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 06:06:32,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 06:06:32,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 06:06:32,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 06:06:32,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 06:06:32,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 06:06:32,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 06:06:32,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 06:06:32,352 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 [2019-09-08 06:06:32,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 06:06:32,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 06:06:32,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 06:06:32,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 06:06:32,369 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 06:06:32,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 06:06:32,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 06:06:32,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 06:06:32,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 06:06:32,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 06:06:32,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 06:06:32,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 06:06:32,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 06:06:32,371 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 06:06:32,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 06:06:32,371 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 06:06:32,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 06:06:32,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 06:06:32,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 06:06:32,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 06:06:32,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 06:06:32,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:06:32,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 06:06:32,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 06:06:32,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 06:06:32,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 06:06:32,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 06:06:32,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 06:06:32,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 06:06:32,401 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 06:06:32,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 06:06:32,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 06:06:32,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 06:06:32,419 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 06:06:32,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2019-09-08 06:06:32,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26495b72b/e18312126a284ae29eb98e370e37dc09/FLAG88bdd0c86 [2019-09-08 06:06:32,997 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 06:06:32,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2019-09-08 06:06:33,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26495b72b/e18312126a284ae29eb98e370e37dc09/FLAG88bdd0c86 [2019-09-08 06:06:33,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26495b72b/e18312126a284ae29eb98e370e37dc09 [2019-09-08 06:06:33,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 06:06:33,313 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 06:06:33,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 06:06:33,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 06:06:33,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 06:06:33,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:06:33" (1/1) ... [2019-09-08 06:06:33,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e135cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:33, skipping insertion in model container [2019-09-08 06:06:33,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:06:33" (1/1) ... [2019-09-08 06:06:33,331 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 06:06:33,396 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 06:06:33,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:06:33,885 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 06:06:33,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:06:34,012 INFO L192 MainTranslator]: Completed translation [2019-09-08 06:06:34,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34 WrapperNode [2019-09-08 06:06:34,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 06:06:34,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 06:06:34,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 06:06:34,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 06:06:34,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (1/1) ... [2019-09-08 06:06:34,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (1/1) ... [2019-09-08 06:06:34,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (1/1) ... [2019-09-08 06:06:34,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (1/1) ... [2019-09-08 06:06:34,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (1/1) ... [2019-09-08 06:06:34,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (1/1) ... [2019-09-08 06:06:34,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (1/1) ... [2019-09-08 06:06:34,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 06:06:34,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 06:06:34,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 06:06:34,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 06:06:34,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (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 [2019-09-08 06:06:34,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 06:06:34,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 06:06:34,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 06:06:34,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 06:06:34,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 06:06:34,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 06:06:34,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 06:06:34,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 06:06:34,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 06:06:34,212 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 06:06:34,212 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-08 06:06:34,212 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-08 06:06:34,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-08 06:06:34,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-08 06:06:34,214 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-08 06:06:34,214 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-08 06:06:34,216 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-08 06:06:34,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-08 06:06:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-08 06:06:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-08 06:06:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-08 06:06:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-08 06:06:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-08 06:06:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-08 06:06:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 06:06:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 06:06:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 06:06:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 06:06:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-08 06:06:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 06:06:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-08 06:06:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-08 06:06:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 06:06:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-08 06:06:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 06:06:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-08 06:06:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-08 06:06:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-08 06:06:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-08 06:06:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-08 06:06:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-08 06:06:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-08 06:06:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-08 06:06:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 06:06:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 06:06:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 06:06:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 06:06:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 06:06:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 06:06:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 06:06:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 06:06:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 06:06:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 06:06:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 06:06:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 06:06:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 06:06:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 06:06:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 06:06:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 06:06:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 06:06:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 06:06:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 06:06:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 06:06:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-08 06:06:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-08 06:06:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-08 06:06:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-08 06:06:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-08 06:06:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-08 06:06:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 06:06:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-08 06:06:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-08 06:06:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-08 06:06:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-08 06:06:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-08 06:06:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-08 06:06:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-08 06:06:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-08 06:06:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-08 06:06:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-08 06:06:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-08 06:06:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-08 06:06:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-08 06:06:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-08 06:06:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-08 06:06:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-08 06:06:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-08 06:06:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 06:06:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 06:06:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 06:06:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 06:06:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 06:06:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-08 06:06:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 06:06:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-08 06:06:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 06:06:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-08 06:06:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 06:06:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 06:06:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 06:06:35,452 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 06:06:35,452 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-08 06:06:35,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:06:35 BoogieIcfgContainer [2019-09-08 06:06:35,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 06:06:35,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 06:06:35,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 06:06:35,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 06:06:35,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:06:33" (1/3) ... [2019-09-08 06:06:35,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ac5a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:06:35, skipping insertion in model container [2019-09-08 06:06:35,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:06:34" (2/3) ... [2019-09-08 06:06:35,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ac5a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:06:35, skipping insertion in model container [2019-09-08 06:06:35,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:06:35" (3/3) ... [2019-09-08 06:06:35,462 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2019-09-08 06:06:35,472 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 06:06:35,481 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 06:06:35,498 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 06:06:35,532 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 06:06:35,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 06:06:35,533 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 06:06:35,533 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 06:06:35,533 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 06:06:35,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 06:06:35,534 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 06:06:35,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 06:06:35,534 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 06:06:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-09-08 06:06:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 06:06:35,568 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:35,569 INFO L399 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] [2019-09-08 06:06:35,572 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:35,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:35,579 INFO L82 PathProgramCache]: Analyzing trace with hash 733672736, now seen corresponding path program 1 times [2019-09-08 06:06:35,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:35,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:35,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:35,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:35,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:35,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:35,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 06:06:35,928 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 06:06:35,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 06:06:35,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 06:06:35,956 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-09-08 06:06:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:36,038 INFO L93 Difference]: Finished difference Result 306 states and 381 transitions. [2019-09-08 06:06:36,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 06:06:36,039 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-08 06:06:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:36,054 INFO L225 Difference]: With dead ends: 306 [2019-09-08 06:06:36,054 INFO L226 Difference]: Without dead ends: 153 [2019-09-08 06:06:36,059 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 06:06:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-08 06:06:36,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-08 06:06:36,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-08 06:06:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 182 transitions. [2019-09-08 06:06:36,133 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 182 transitions. Word has length 46 [2019-09-08 06:06:36,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:36,133 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 182 transitions. [2019-09-08 06:06:36,134 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 06:06:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 182 transitions. [2019-09-08 06:06:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-08 06:06:36,145 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:36,145 INFO L399 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] [2019-09-08 06:06:36,146 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:36,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:36,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1141201306, now seen corresponding path program 1 times [2019-09-08 06:06:36,146 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:36,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:36,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:36,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:36,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:36,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:36,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:06:36,324 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:06:36,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:06:36,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:06:36,326 INFO L87 Difference]: Start difference. First operand 153 states and 182 transitions. Second operand 3 states. [2019-09-08 06:06:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:36,368 INFO L93 Difference]: Finished difference Result 245 states and 291 transitions. [2019-09-08 06:06:36,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:06:36,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-08 06:06:36,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:36,373 INFO L225 Difference]: With dead ends: 245 [2019-09-08 06:06:36,373 INFO L226 Difference]: Without dead ends: 144 [2019-09-08 06:06:36,376 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:06:36,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-08 06:06:36,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-08 06:06:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-08 06:06:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2019-09-08 06:06:36,406 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 47 [2019-09-08 06:06:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:36,406 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2019-09-08 06:06:36,406 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:06:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2019-09-08 06:06:36,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 06:06:36,412 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:36,412 INFO L399 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] [2019-09-08 06:06:36,412 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:36,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1705860394, now seen corresponding path program 1 times [2019-09-08 06:06:36,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:36,413 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:36,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:36,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:36,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:36,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:36,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 06:06:36,574 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 06:06:36,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 06:06:36,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:36,574 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand 7 states. [2019-09-08 06:06:37,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:37,199 INFO L93 Difference]: Finished difference Result 434 states and 530 transitions. [2019-09-08 06:06:37,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 06:06:37,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-08 06:06:37,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:37,207 INFO L225 Difference]: With dead ends: 434 [2019-09-08 06:06:37,212 INFO L226 Difference]: Without dead ends: 314 [2019-09-08 06:06:37,214 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-08 06:06:37,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-09-08 06:06:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2019-09-08 06:06:37,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-09-08 06:06:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 368 transitions. [2019-09-08 06:06:37,293 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 368 transitions. Word has length 52 [2019-09-08 06:06:37,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:37,293 INFO L475 AbstractCegarLoop]: Abstraction has 302 states and 368 transitions. [2019-09-08 06:06:37,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 06:06:37,294 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 368 transitions. [2019-09-08 06:06:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-08 06:06:37,295 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:37,296 INFO L399 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] [2019-09-08 06:06:37,296 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:37,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:37,296 INFO L82 PathProgramCache]: Analyzing trace with hash -986744431, now seen corresponding path program 1 times [2019-09-08 06:06:37,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:37,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:37,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:37,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:37,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:37,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:37,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:06:37,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:06:37,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:06:37,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:06:37,429 INFO L87 Difference]: Start difference. First operand 302 states and 368 transitions. Second operand 6 states. [2019-09-08 06:06:37,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:37,694 INFO L93 Difference]: Finished difference Result 843 states and 1052 transitions. [2019-09-08 06:06:37,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:06:37,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-08 06:06:37,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:37,707 INFO L225 Difference]: With dead ends: 843 [2019-09-08 06:06:37,708 INFO L226 Difference]: Without dead ends: 565 [2019-09-08 06:06:37,713 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-08 06:06:37,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-09-08 06:06:37,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2019-09-08 06:06:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-09-08 06:06:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 686 transitions. [2019-09-08 06:06:37,774 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 686 transitions. Word has length 57 [2019-09-08 06:06:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:37,777 INFO L475 AbstractCegarLoop]: Abstraction has 559 states and 686 transitions. [2019-09-08 06:06:37,777 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:06:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 686 transitions. [2019-09-08 06:06:37,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-08 06:06:37,783 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:37,783 INFO L399 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] [2019-09-08 06:06:37,783 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:37,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:37,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1925248939, now seen corresponding path program 1 times [2019-09-08 06:06:37,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:37,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:37,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:37,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:37,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:37,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:37,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 06:06:37,874 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 06:06:37,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 06:06:37,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:37,875 INFO L87 Difference]: Start difference. First operand 559 states and 686 transitions. Second operand 7 states. [2019-09-08 06:06:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:38,689 INFO L93 Difference]: Finished difference Result 1454 states and 1907 transitions. [2019-09-08 06:06:38,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 06:06:38,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-08 06:06:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:38,696 INFO L225 Difference]: With dead ends: 1454 [2019-09-08 06:06:38,697 INFO L226 Difference]: Without dead ends: 919 [2019-09-08 06:06:38,699 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-08 06:06:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2019-09-08 06:06:38,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 821. [2019-09-08 06:06:38,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-09-08 06:06:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 999 transitions. [2019-09-08 06:06:38,763 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 999 transitions. Word has length 61 [2019-09-08 06:06:38,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:38,764 INFO L475 AbstractCegarLoop]: Abstraction has 821 states and 999 transitions. [2019-09-08 06:06:38,764 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 06:06:38,764 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 999 transitions. [2019-09-08 06:06:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-08 06:06:38,766 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:38,766 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:38,767 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:38,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:38,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1051920088, now seen corresponding path program 1 times [2019-09-08 06:06:38,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:38,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:38,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:38,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:38,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:38,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:38,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:06:38,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:06:38,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:06:38,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:06:38,872 INFO L87 Difference]: Start difference. First operand 821 states and 999 transitions. Second operand 6 states. [2019-09-08 06:06:38,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:38,934 INFO L93 Difference]: Finished difference Result 1638 states and 2032 transitions. [2019-09-08 06:06:38,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:06:38,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-08 06:06:38,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:38,943 INFO L225 Difference]: With dead ends: 1638 [2019-09-08 06:06:38,943 INFO L226 Difference]: Without dead ends: 841 [2019-09-08 06:06:38,946 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:06:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-09-08 06:06:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2019-09-08 06:06:38,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2019-09-08 06:06:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1019 transitions. [2019-09-08 06:06:38,997 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1019 transitions. Word has length 89 [2019-09-08 06:06:38,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:38,998 INFO L475 AbstractCegarLoop]: Abstraction has 841 states and 1019 transitions. [2019-09-08 06:06:38,998 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:06:38,998 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1019 transitions. [2019-09-08 06:06:39,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-08 06:06:39,000 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:39,000 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:39,001 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:39,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:39,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1326679702, now seen corresponding path program 1 times [2019-09-08 06:06:39,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:39,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:39,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:39,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:39,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:39,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:39,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:39,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 06:06:39,110 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:06:39,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:06:39,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:39,111 INFO L87 Difference]: Start difference. First operand 841 states and 1019 transitions. Second operand 8 states. [2019-09-08 06:06:39,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:39,171 INFO L93 Difference]: Finished difference Result 1686 states and 2118 transitions. [2019-09-08 06:06:39,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:06:39,171 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-09-08 06:06:39,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:39,178 INFO L225 Difference]: With dead ends: 1686 [2019-09-08 06:06:39,178 INFO L226 Difference]: Without dead ends: 869 [2019-09-08 06:06:39,182 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:39,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2019-09-08 06:06:39,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 857. [2019-09-08 06:06:39,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2019-09-08 06:06:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1035 transitions. [2019-09-08 06:06:39,236 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1035 transitions. Word has length 89 [2019-09-08 06:06:39,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:39,236 INFO L475 AbstractCegarLoop]: Abstraction has 857 states and 1035 transitions. [2019-09-08 06:06:39,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:06:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1035 transitions. [2019-09-08 06:06:39,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-08 06:06:39,244 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:39,245 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:39,246 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:39,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:39,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1017987339, now seen corresponding path program 1 times [2019-09-08 06:06:39,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:39,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:39,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:39,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:39,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:06:39,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:39,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 06:06:39,432 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 06:06:39,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 06:06:39,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 06:06:39,433 INFO L87 Difference]: Start difference. First operand 857 states and 1035 transitions. Second operand 4 states. [2019-09-08 06:06:39,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:39,843 INFO L93 Difference]: Finished difference Result 2779 states and 3518 transitions. [2019-09-08 06:06:39,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 06:06:39,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-09-08 06:06:39,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:39,862 INFO L225 Difference]: With dead ends: 2779 [2019-09-08 06:06:39,862 INFO L226 Difference]: Without dead ends: 1946 [2019-09-08 06:06:39,869 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 06:06:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2019-09-08 06:06:40,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1915. [2019-09-08 06:06:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2019-09-08 06:06:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2371 transitions. [2019-09-08 06:06:40,051 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2371 transitions. Word has length 89 [2019-09-08 06:06:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:40,051 INFO L475 AbstractCegarLoop]: Abstraction has 1915 states and 2371 transitions. [2019-09-08 06:06:40,051 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 06:06:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2371 transitions. [2019-09-08 06:06:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 06:06:40,057 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:40,058 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:40,058 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:40,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1174397627, now seen corresponding path program 1 times [2019-09-08 06:06:40,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:40,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:40,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:40,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:40,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:06:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:06:40,985 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 06:06:41,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:06:41 BoogieIcfgContainer [2019-09-08 06:06:41,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 06:06:41,230 INFO L168 Benchmark]: Toolchain (without parser) took 7914.03 ms. Allocated memory was 130.5 MB in the beginning and 352.8 MB in the end (delta: 222.3 MB). Free memory was 84.0 MB in the beginning and 312.3 MB in the end (delta: -228.3 MB). Peak memory consumption was 238.5 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:41,231 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 06:06:41,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.15 ms. Allocated memory was 130.5 MB in the beginning and 199.2 MB in the end (delta: 68.7 MB). Free memory was 83.8 MB in the beginning and 163.0 MB in the end (delta: -79.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:41,234 INFO L168 Benchmark]: Boogie Preprocessor took 115.23 ms. Allocated memory is still 199.2 MB. Free memory was 163.0 MB in the beginning and 159.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:41,235 INFO L168 Benchmark]: RCFGBuilder took 1324.72 ms. Allocated memory was 199.2 MB in the beginning and 218.1 MB in the end (delta: 18.9 MB). Free memory was 159.1 MB in the beginning and 187.0 MB in the end (delta: -27.9 MB). Peak memory consumption was 94.6 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:41,240 INFO L168 Benchmark]: TraceAbstraction took 5770.49 ms. Allocated memory was 218.1 MB in the beginning and 352.8 MB in the end (delta: 134.7 MB). Free memory was 187.0 MB in the beginning and 312.3 MB in the end (delta: -125.3 MB). Peak memory consumption was 254.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:06:41,246 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.15 ms. Allocated memory was 130.5 MB in the beginning and 199.2 MB in the end (delta: 68.7 MB). Free memory was 83.8 MB in the beginning and 163.0 MB in the end (delta: -79.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.23 ms. Allocated memory is still 199.2 MB. Free memory was 163.0 MB in the beginning and 159.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1324.72 ms. Allocated memory was 199.2 MB in the beginning and 218.1 MB in the end (delta: 18.9 MB). Free memory was 159.1 MB in the beginning and 187.0 MB in the end (delta: -27.9 MB). Peak memory consumption was 94.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5770.49 ms. Allocated memory was 218.1 MB in the beginning and 352.8 MB in the end (delta: 134.7 MB). Free memory was 187.0 MB in the beginning and 312.3 MB in the end (delta: -125.3 MB). Peak memory consumption was 254.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: 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; [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L884] int retValue_acc ; [L885] 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] [L889] 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] [L890] 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] [L891] 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] [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] 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] [L891] 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] [L891] tmp = valid_product() [L893] 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] [L895] 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] [L896] 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] [L878] 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] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] 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] [L422] 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] [L424] 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] [L430] tmp = __VERIFIER_nondet_int() [L432] 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] [L434] 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] [L926] COND TRUE waterLevel < 2 [L927] 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] [L434] 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] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \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=1, waterLevel=2] [L444] CALL changeMethaneLevel() 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] [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L444] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L469] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L505] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L579] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L553] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L527] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L988] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L682] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L532] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L536] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L536] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L571] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L597] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L507] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L513] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L777] int tmp ; [L778] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L782] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L786] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L790] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L806] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 255 locations, 1 error locations. UNSAFE Result, 5.6s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1554 SDtfs, 849 SDslu, 3714 SDs, 0 SdLazy, 1038 SolverSat, 133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1915occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 159 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 60344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...