/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_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:39:12,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:39:12,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:39:12,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:39:12,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:39:12,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:39:12,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:39:12,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:39:12,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:39:12,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:39:12,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:39:12,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:39:12,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:39:12,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:39:12,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:39:12,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:39:12,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:39:12,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:39:12,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:39:12,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:39:12,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:39:12,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:39:12,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:39:12,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:39:12,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:39:12,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:39:12,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:39:12,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:39:12,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:39:12,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:39:12,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:39:12,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:39:12,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:39:12,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:39:12,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:39:12,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:39:12,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:39:12,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:39:12,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:39:12,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:39:12,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:39:12,440 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 10:39:12,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:39:12,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:39:12,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:39:12,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:39:12,456 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:39:12,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:39:12,456 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:39:12,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:39:12,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:39:12,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:39:12,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:39:12,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:39:12,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:39:12,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:39:12,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:39:12,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:39:12,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:39:12,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:39:12,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:39:12,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:39:12,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:39:12,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:39:12,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:39:12,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:39:12,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:39:12,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:39:12,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:39:12,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:39:12,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:39:12,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:39:12,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:39:12,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:39:12,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:39:12,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:39:12,771 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:39:12,772 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-07-07 10:39:12,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ed1c285/17381762587f4f2cb9f1e3e0bc2112b5/FLAG969125ccc [2020-07-07 10:39:13,338 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:39:13,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-07-07 10:39:13,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ed1c285/17381762587f4f2cb9f1e3e0bc2112b5/FLAG969125ccc [2020-07-07 10:39:13,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ed1c285/17381762587f4f2cb9f1e3e0bc2112b5 [2020-07-07 10:39:13,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:39:13,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:39:13,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:39:13,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:39:13,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:39:13,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:39:13" (1/1) ... [2020-07-07 10:39:13,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a32e275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:13, skipping insertion in model container [2020-07-07 10:39:13,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:39:13" (1/1) ... [2020-07-07 10:39:13,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:39:13,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:39:14,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:39:14,212 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:39:14,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:39:14,309 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:39:14,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14 WrapperNode [2020-07-07 10:39:14,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:39:14,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:39:14,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:39:14,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:39:14,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (1/1) ... [2020-07-07 10:39:14,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (1/1) ... [2020-07-07 10:39:14,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (1/1) ... [2020-07-07 10:39:14,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (1/1) ... [2020-07-07 10:39:14,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (1/1) ... [2020-07-07 10:39:14,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (1/1) ... [2020-07-07 10:39:14,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (1/1) ... [2020-07-07 10:39:14,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:39:14,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:39:14,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:39:14,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:39:14,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (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 10:39:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:39:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:39:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:39:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:39:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:39:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:39:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:39:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:39:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:39:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:39:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:39:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:39:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:39:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:39:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-07 10:39:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:39:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:39:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:39:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:39:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:39:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:39:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:39:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:39:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:39:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:39:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:39:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:39:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:39:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:39:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:39:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:39:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:39:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:39:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:39:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:39:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:39:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:39:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:39:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:39:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:39:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:39:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:39:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:39:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:39:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:39:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:39:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:39:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:39:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:39:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:39:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:39:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:39:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:39:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:39:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:39:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:39:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:39:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:39:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:39:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:39:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:39:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:39:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:39:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:39:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:39:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:39:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:39:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:39:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:39:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:39:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:39:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:39:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:39:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:39:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-07 10:39:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:39:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:39:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:39:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:39:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:39:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:39:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:39:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:39:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:39:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:39:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:39:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:39:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:39:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:39:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:39:15,691 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:39:15,695 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:39:15,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:39:15 BoogieIcfgContainer [2020-07-07 10:39:15,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:39:15,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:39:15,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:39:15,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:39:15,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:39:13" (1/3) ... [2020-07-07 10:39:15,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3356fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:39:15, skipping insertion in model container [2020-07-07 10:39:15,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:39:14" (2/3) ... [2020-07-07 10:39:15,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3356fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:39:15, skipping insertion in model container [2020-07-07 10:39:15,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:39:15" (3/3) ... [2020-07-07 10:39:15,715 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-07-07 10:39:15,725 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:39:15,736 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:39:15,751 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:39:15,785 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:39:15,785 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:39:15,785 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:39:15,785 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:39:15,786 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:39:15,786 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:39:15,786 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:39:15,786 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:39:15,813 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-07-07 10:39:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:39:15,825 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:15,826 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] [2020-07-07 10:39:15,826 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:15,831 INFO L82 PathProgramCache]: Analyzing trace with hash -749162492, now seen corresponding path program 1 times [2020-07-07 10:39:15,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:15,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844932741] [2020-07-07 10:39:15,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,519 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:16,637 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 10:39:16,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844932741] [2020-07-07 10:39:16,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:16,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:39:16,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058979116] [2020-07-07 10:39:16,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:39:16,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:16,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:39:16,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:39:16,662 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-07-07 10:39:17,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:17,756 INFO L93 Difference]: Finished difference Result 287 states and 378 transitions. [2020-07-07 10:39:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:39:17,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:39:17,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:17,772 INFO L225 Difference]: With dead ends: 287 [2020-07-07 10:39:17,773 INFO L226 Difference]: Without dead ends: 155 [2020-07-07 10:39:17,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 10:39:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-07-07 10:39:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2020-07-07 10:39:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-07 10:39:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2020-07-07 10:39:17,865 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2020-07-07 10:39:17,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:17,866 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2020-07-07 10:39:17,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:39:17,866 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2020-07-07 10:39:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:39:17,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:17,869 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] [2020-07-07 10:39:17,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:39:17,870 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:17,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1435333190, now seen corresponding path program 1 times [2020-07-07 10:39:17,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:17,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992791185] [2020-07-07 10:39:17,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,207 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:18,271 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 10:39:18,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992791185] [2020-07-07 10:39:18,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:18,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:39:18,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323216921] [2020-07-07 10:39:18,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:39:18,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:18,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:39:18,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:39:18,276 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 4 states. [2020-07-07 10:39:18,680 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:19,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:19,436 INFO L93 Difference]: Finished difference Result 220 states and 269 transitions. [2020-07-07 10:39:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:39:19,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:39:19,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:19,439 INFO L225 Difference]: With dead ends: 220 [2020-07-07 10:39:19,439 INFO L226 Difference]: Without dead ends: 139 [2020-07-07 10:39:19,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 10:39:19,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-07 10:39:19,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2020-07-07 10:39:19,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-07 10:39:19,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-07-07 10:39:19,474 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2020-07-07 10:39:19,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:19,474 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-07-07 10:39:19,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:39:19,474 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-07-07 10:39:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-07 10:39:19,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:19,477 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] [2020-07-07 10:39:19,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:39:19,477 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:19,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:19,477 INFO L82 PathProgramCache]: Analyzing trace with hash 325618258, now seen corresponding path program 1 times [2020-07-07 10:39:19,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:19,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167293278] [2020-07-07 10:39:19,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,747 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:19,857 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 10:39:19,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167293278] [2020-07-07 10:39:19,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:19,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:39:19,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716489856] [2020-07-07 10:39:19,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:39:19,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:19,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:39:19,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:39:19,859 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 8 states. [2020-07-07 10:39:20,257 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:20,566 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:39:20,792 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:21,017 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:22,088 INFO L93 Difference]: Finished difference Result 229 states and 283 transitions. [2020-07-07 10:39:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:39:22,089 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-07 10:39:22,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:22,092 INFO L225 Difference]: With dead ends: 229 [2020-07-07 10:39:22,092 INFO L226 Difference]: Without dead ends: 139 [2020-07-07 10:39:22,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 10:39:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-07 10:39:22,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2020-07-07 10:39:22,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-07 10:39:22,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2020-07-07 10:39:22,132 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 51 [2020-07-07 10:39:22,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:22,132 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2020-07-07 10:39:22,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:39:22,132 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2020-07-07 10:39:22,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-07 10:39:22,135 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:22,135 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] [2020-07-07 10:39:22,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:39:22,135 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:22,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:22,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1759847866, now seen corresponding path program 1 times [2020-07-07 10:39:22,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:22,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14174623] [2020-07-07 10:39:22,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,427 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:22,535 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 10:39:22,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14174623] [2020-07-07 10:39:22,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:22,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:39:22,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127138554] [2020-07-07 10:39:22,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:39:22,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:22,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:39:22,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:39:22,539 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 6 states. [2020-07-07 10:39:22,853 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:23,927 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:24,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:24,505 INFO L93 Difference]: Finished difference Result 321 states and 399 transitions. [2020-07-07 10:39:24,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:39:24,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-07 10:39:24,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:24,511 INFO L225 Difference]: With dead ends: 321 [2020-07-07 10:39:24,511 INFO L226 Difference]: Without dead ends: 231 [2020-07-07 10:39:24,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:39:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-07 10:39:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 190. [2020-07-07 10:39:24,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-07 10:39:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2020-07-07 10:39:24,557 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 64 [2020-07-07 10:39:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:24,558 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2020-07-07 10:39:24,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:39:24,558 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2020-07-07 10:39:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-07 10:39:24,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:24,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:24,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:39:24,561 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:24,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:24,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1017680522, now seen corresponding path program 1 times [2020-07-07 10:39:24,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:24,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633224066] [2020-07-07 10:39:24,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,829 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:24,941 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 10:39:24,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633224066] [2020-07-07 10:39:24,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:24,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:39:24,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648879067] [2020-07-07 10:39:24,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:39:24,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:24,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:39:24,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:39:24,946 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand 8 states. [2020-07-07 10:39:25,449 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:26,470 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:26,757 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:26,967 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:27,174 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:27,442 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:28,329 INFO L93 Difference]: Finished difference Result 565 states and 701 transitions. [2020-07-07 10:39:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 10:39:28,329 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-07-07 10:39:28,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:28,333 INFO L225 Difference]: With dead ends: 565 [2020-07-07 10:39:28,334 INFO L226 Difference]: Without dead ends: 399 [2020-07-07 10:39:28,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:39:28,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-07-07 10:39:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 335. [2020-07-07 10:39:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-07 10:39:28,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 384 transitions. [2020-07-07 10:39:28,415 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 384 transitions. Word has length 78 [2020-07-07 10:39:28,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:28,415 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 384 transitions. [2020-07-07 10:39:28,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:39:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 384 transitions. [2020-07-07 10:39:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-07 10:39:28,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:28,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:28,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:39:28,418 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:28,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:28,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1476513266, now seen corresponding path program 1 times [2020-07-07 10:39:28,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:28,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616170226] [2020-07-07 10:39:28,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,683 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:28,783 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 10:39:28,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616170226] [2020-07-07 10:39:28,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:28,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 10:39:28,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144476257] [2020-07-07 10:39:28,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 10:39:28,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:28,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 10:39:28,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:39:28,786 INFO L87 Difference]: Start difference. First operand 335 states and 384 transitions. Second operand 9 states. [2020-07-07 10:39:29,170 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:30,181 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:30,391 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:30,638 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:30,876 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:31,124 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:32,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:32,029 INFO L93 Difference]: Finished difference Result 438 states and 552 transitions. [2020-07-07 10:39:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 10:39:32,030 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-07-07 10:39:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:32,034 INFO L225 Difference]: With dead ends: 438 [2020-07-07 10:39:32,034 INFO L226 Difference]: Without dead ends: 435 [2020-07-07 10:39:32,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-07 10:39:32,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-07-07 10:39:32,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 335. [2020-07-07 10:39:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-07 10:39:32,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 383 transitions. [2020-07-07 10:39:32,101 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 383 transitions. Word has length 82 [2020-07-07 10:39:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:32,102 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 383 transitions. [2020-07-07 10:39:32,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 10:39:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 383 transitions. [2020-07-07 10:39:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-07 10:39:32,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:32,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:32,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:39:32,104 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:32,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1573868364, now seen corresponding path program 1 times [2020-07-07 10:39:32,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:32,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949099688] [2020-07-07 10:39:32,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,326 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:32,441 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 10:39:32,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949099688] [2020-07-07 10:39:32,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:32,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 10:39:32,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201979453] [2020-07-07 10:39:32,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 10:39:32,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:32,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 10:39:32,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-07 10:39:32,443 INFO L87 Difference]: Start difference. First operand 335 states and 383 transitions. Second operand 9 states. [2020-07-07 10:39:33,322 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:33,541 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:39:33,765 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:33,994 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:34,844 INFO L93 Difference]: Finished difference Result 750 states and 926 transitions. [2020-07-07 10:39:34,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:39:34,845 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-07-07 10:39:34,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:34,849 INFO L225 Difference]: With dead ends: 750 [2020-07-07 10:39:34,849 INFO L226 Difference]: Without dead ends: 439 [2020-07-07 10:39:34,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:39:34,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-07-07 10:39:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 345. [2020-07-07 10:39:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-07 10:39:34,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2020-07-07 10:39:34,929 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 83 [2020-07-07 10:39:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:34,930 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2020-07-07 10:39:34,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 10:39:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2020-07-07 10:39:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-07 10:39:34,931 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:34,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:34,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 10:39:34,932 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:34,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1596500618, now seen corresponding path program 1 times [2020-07-07 10:39:34,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:34,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598218061] [2020-07-07 10:39:34,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,169 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:35,344 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 10:39:35,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598218061] [2020-07-07 10:39:35,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:35,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 10:39:35,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478596036] [2020-07-07 10:39:35,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 10:39:35,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:35,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 10:39:35,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:39:35,349 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 11 states. [2020-07-07 10:39:35,999 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:39:36,217 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:36,430 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:36,972 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:37,233 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:37,453 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:39:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:38,445 INFO L93 Difference]: Finished difference Result 774 states and 966 transitions. [2020-07-07 10:39:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 10:39:38,446 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-07-07 10:39:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:38,452 INFO L225 Difference]: With dead ends: 774 [2020-07-07 10:39:38,452 INFO L226 Difference]: Without dead ends: 453 [2020-07-07 10:39:38,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-07 10:39:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-07 10:39:38,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 353. [2020-07-07 10:39:38,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-07-07 10:39:38,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 401 transitions. [2020-07-07 10:39:38,510 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 401 transitions. Word has length 83 [2020-07-07 10:39:38,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:38,511 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 401 transitions. [2020-07-07 10:39:38,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 10:39:38,511 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 401 transitions. [2020-07-07 10:39:38,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-07 10:39:38,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:38,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:39:38,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 10:39:38,513 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:38,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:38,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1672974679, now seen corresponding path program 1 times [2020-07-07 10:39:38,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:38,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616047598] [2020-07-07 10:39:38,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,769 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:39:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:39:38,885 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 10:39:38,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616047598] [2020-07-07 10:39:38,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:39:38,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 10:39:38,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906233385] [2020-07-07 10:39:38,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 10:39:38,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:39:38,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 10:39:38,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 10:39:38,888 INFO L87 Difference]: Start difference. First operand 353 states and 401 transitions. Second operand 7 states. [2020-07-07 10:39:39,290 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:39,744 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:39:41,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:39:41,515 INFO L93 Difference]: Finished difference Result 1077 states and 1388 transitions. [2020-07-07 10:39:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 10:39:41,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-07-07 10:39:41,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:39:41,522 INFO L225 Difference]: With dead ends: 1077 [2020-07-07 10:39:41,522 INFO L226 Difference]: Without dead ends: 748 [2020-07-07 10:39:41,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:39:41,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-07-07 10:39:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 649. [2020-07-07 10:39:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-07-07 10:39:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 771 transitions. [2020-07-07 10:39:41,652 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 771 transitions. Word has length 83 [2020-07-07 10:39:41,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:39:41,652 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 771 transitions. [2020-07-07 10:39:41,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 10:39:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 771 transitions. [2020-07-07 10:39:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-07 10:39:41,654 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:39:41,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:39:41,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 10:39:41,655 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:39:41,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:39:41,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1457224847, now seen corresponding path program 1 times [2020-07-07 10:39:41,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:39:41,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063034341] [2020-07-07 10:39:41,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:39:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:39:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:39:41,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:39:41,891 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:39:41,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 10:39:42,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:39:42 BoogieIcfgContainer [2020-07-07 10:39:42,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:39:42,076 INFO L168 Benchmark]: Toolchain (without parser) took 28364.09 ms. Allocated memory was 136.3 MB in the beginning and 640.2 MB in the end (delta: 503.8 MB). Free memory was 98.9 MB in the beginning and 438.6 MB in the end (delta: -339.7 MB). Peak memory consumption was 164.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:39:42,077 INFO L168 Benchmark]: CDTParser took 1.32 ms. Allocated memory is still 136.3 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 10:39:42,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.56 ms. Allocated memory was 136.3 MB in the beginning and 198.7 MB in the end (delta: 62.4 MB). Free memory was 98.7 MB in the beginning and 166.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2020-07-07 10:39:42,083 INFO L168 Benchmark]: Boogie Preprocessor took 93.53 ms. Allocated memory is still 198.7 MB. Free memory was 166.6 MB in the beginning and 162.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:39:42,084 INFO L168 Benchmark]: RCFGBuilder took 1298.17 ms. Allocated memory was 198.7 MB in the beginning and 228.6 MB in the end (delta: 29.9 MB). Free memory was 162.4 MB in the beginning and 193.7 MB in the end (delta: -31.3 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2020-07-07 10:39:42,087 INFO L168 Benchmark]: TraceAbstraction took 26366.30 ms. Allocated memory was 228.6 MB in the beginning and 640.2 MB in the end (delta: 411.6 MB). Free memory was 192.3 MB in the beginning and 438.6 MB in the end (delta: -246.4 MB). Peak memory consumption was 165.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:39:42,094 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32 ms. Allocated memory is still 136.3 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 600.56 ms. Allocated memory was 136.3 MB in the beginning and 198.7 MB in the end (delta: 62.4 MB). Free memory was 98.7 MB in the beginning and 166.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.53 ms. Allocated memory is still 198.7 MB. Free memory was 166.6 MB in the beginning and 162.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1298.17 ms. Allocated memory was 198.7 MB in the beginning and 228.6 MB in the end (delta: 29.9 MB). Free memory was 162.4 MB in the beginning and 193.7 MB in the end (delta: -31.3 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26366.30 ms. Allocated memory was 228.6 MB in the beginning and 640.2 MB in the end (delta: 411.6 MB). Free memory was 192.3 MB in the beginning and 438.6 MB in the end (delta: -246.4 MB). Peak memory consumption was 165.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: 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; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] int retValue_acc ; [L488] 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] [L492] 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] [L493] 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] [L494] 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] [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] 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] [L494] 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] [L494] tmp = valid_product() [L496] 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] [L498] 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] [L499] 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] [L478] 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] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] 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] [L776] 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] [L778] 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] [L784] tmp = __VERIFIER_nondet_int() [L786] 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] [L788] 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] [L850] COND TRUE waterLevel < 2 [L851] 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] [L788] 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] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \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=1, waterLevel=2] [L798] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L798] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L819] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L624] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L753] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L912] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L753] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L629] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L633] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L678] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L633] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L668] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L604] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L610] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L514] int tmp ; [L515] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L519] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L523] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L527] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L543] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1008 SDtfs, 1711 SDslu, 939 SDs, 0 SdLazy, 4709 SolverSat, 1070 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 220 SyntacticMatches, 3 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=649occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 580 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 186857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...