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_spec5_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:42:02,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:42:02,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:42:02,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:42:02,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:42:02,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:42:02,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:42:02,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:42:02,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:42:02,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:42:02,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:42:02,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:42:02,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:42:02,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:42:02,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:42:02,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:42:02,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:42:02,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:42:02,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:42:02,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:42:02,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:42:02,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:42:02,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:42:02,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:42:02,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:42:02,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:42:02,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:42:02,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:42:02,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:42:02,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:42:02,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:42:02,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:42:02,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:42:02,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:42:02,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:42:02,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:42:02,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:42:02,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:42:02,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:42:02,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:42:02,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:42:02,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:42:02,379 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:42:02,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:42:02,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:42:02,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:42:02,381 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:42:02,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:42:02,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:42:02,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:42:02,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:42:02,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:42:02,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:42:02,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:42:02,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:42:02,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:42:02,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:42:02,383 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:42:02,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:42:02,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:42:02,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:42:02,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:42:02,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:42:02,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:02,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:42:02,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:42:02,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:42:02,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:42:02,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:42:02,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:42:02,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:42:02,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:42:02,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:42:02,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:42:02,684 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:42:02,684 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:42:02,685 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2019-10-13 19:42:02,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8eda421/1443667e6a2e4332b9ae5337f7086dcf/FLAGc0053e06b [2019-10-13 19:42:03,301 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:42:03,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2019-10-13 19:42:03,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8eda421/1443667e6a2e4332b9ae5337f7086dcf/FLAGc0053e06b [2019-10-13 19:42:03,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8eda421/1443667e6a2e4332b9ae5337f7086dcf [2019-10-13 19:42:03,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:42:03,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:42:03,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:03,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:42:03,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:42:03,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:03" (1/1) ... [2019-10-13 19:42:03,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283ca1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:03, skipping insertion in model container [2019-10-13 19:42:03,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:03" (1/1) ... [2019-10-13 19:42:03,607 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:42:03,671 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:42:04,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:04,113 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:42:04,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:04,237 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:42:04,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04 WrapperNode [2019-10-13 19:42:04,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:04,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:42:04,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:42:04,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:42:04,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... [2019-10-13 19:42:04,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... [2019-10-13 19:42:04,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... [2019-10-13 19:42:04,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... [2019-10-13 19:42:04,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... [2019-10-13 19:42:04,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... [2019-10-13 19:42:04,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... [2019-10-13 19:42:04,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:42:04,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:42:04,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:42:04,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:42:04,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:42:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:42:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:42:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:42:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:42:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:42:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:42:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:42:04,417 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:42:04,417 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:42:04,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:42:04,418 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 19:42:04,421 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:42:04,421 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:42:04,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:42:04,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:42:04,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:42:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:42:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 19:42:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:42:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:42:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:42:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:42:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:42:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:42:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:42:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:42:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:42:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:42:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:42:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:42:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:42:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:42:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:42:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:42:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:42:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:42:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:42:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:42:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:42:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:42:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:42:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:42:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:42:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:42:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:42:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:42:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 19:42:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:42:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:42:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:42:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:42:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:42:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:42:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:42:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:42:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:42:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:42:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:42:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:42:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:42:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:42:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:42:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:42:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 19:42:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:42:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:42:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:42:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:42:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:42:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:42:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:42:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:42:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:42:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:42:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:42:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:42:05,575 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:42:05,576 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:42:05,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:05 BoogieIcfgContainer [2019-10-13 19:42:05,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:42:05,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:42:05,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:42:05,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:42:05,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:42:03" (1/3) ... [2019-10-13 19:42:05,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44da5cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:05, skipping insertion in model container [2019-10-13 19:42:05,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:04" (2/3) ... [2019-10-13 19:42:05,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44da5cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:05, skipping insertion in model container [2019-10-13 19:42:05,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:05" (3/3) ... [2019-10-13 19:42:05,587 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2019-10-13 19:42:05,598 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:42:05,607 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:42:05,619 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:42:05,659 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:42:05,659 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:42:05,659 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:42:05,659 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:42:05,660 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:42:05,660 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:42:05,660 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:42:05,660 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:42:05,681 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-10-13 19:42:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 19:42:05,692 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:05,693 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:05,696 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:05,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1391539258, now seen corresponding path program 1 times [2019-10-13 19:42:05,711 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:05,712 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451031769] [2019-10-13 19:42:05,712 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:05,712 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:05,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,373 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:06,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451031769] [2019-10-13 19:42:06,508 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:06,508 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:42:06,508 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320531697] [2019-10-13 19:42:06,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:42:06,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:06,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:42:06,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:06,530 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 4 states. [2019-10-13 19:42:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:07,929 INFO L93 Difference]: Finished difference Result 340 states and 436 transitions. [2019-10-13 19:42:07,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:42:07,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 19:42:07,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:07,948 INFO L225 Difference]: With dead ends: 340 [2019-10-13 19:42:07,948 INFO L226 Difference]: Without dead ends: 188 [2019-10-13 19:42:07,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-13 19:42:08,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 153. [2019-10-13 19:42:08,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-13 19:42:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 180 transitions. [2019-10-13 19:42:08,051 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 180 transitions. Word has length 59 [2019-10-13 19:42:08,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:08,052 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 180 transitions. [2019-10-13 19:42:08,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:42:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 180 transitions. [2019-10-13 19:42:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 19:42:08,056 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:08,056 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:08,057 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:08,057 INFO L82 PathProgramCache]: Analyzing trace with hash 404948371, now seen corresponding path program 1 times [2019-10-13 19:42:08,058 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:08,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432519955] [2019-10-13 19:42:08,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:08,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:08,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,514 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:08,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432519955] [2019-10-13 19:42:08,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:08,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:42:08,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557039118] [2019-10-13 19:42:08,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:42:08,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:08,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:42:08,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:42:08,580 INFO L87 Difference]: Start difference. First operand 153 states and 180 transitions. Second operand 5 states. [2019-10-13 19:42:09,116 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:10,223 INFO L93 Difference]: Finished difference Result 275 states and 336 transitions. [2019-10-13 19:42:10,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:42:10,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 19:42:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:10,227 INFO L225 Difference]: With dead ends: 275 [2019-10-13 19:42:10,227 INFO L226 Difference]: Without dead ends: 178 [2019-10-13 19:42:10,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:42:10,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-10-13 19:42:10,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 144. [2019-10-13 19:42:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-13 19:42:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-13 19:42:10,268 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 60 [2019-10-13 19:42:10,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:10,268 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-13 19:42:10,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:42:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-13 19:42:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:42:10,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:10,271 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:10,271 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:10,272 INFO L82 PathProgramCache]: Analyzing trace with hash 539093391, now seen corresponding path program 1 times [2019-10-13 19:42:10,272 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:10,272 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877260323] [2019-10-13 19:42:10,272 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:10,272 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:10,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,621 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:10,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877260323] [2019-10-13 19:42:10,772 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:10,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:10,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609047073] [2019-10-13 19:42:10,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:10,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:10,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:10,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:10,776 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 9 states. [2019-10-13 19:42:11,336 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:11,706 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:42:11,999 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:12,299 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:13,330 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:15,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:15,641 INFO L93 Difference]: Finished difference Result 485 states and 599 transitions. [2019-10-13 19:42:15,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:42:15,642 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-13 19:42:15,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:15,648 INFO L225 Difference]: With dead ends: 485 [2019-10-13 19:42:15,648 INFO L226 Difference]: Without dead ends: 369 [2019-10-13 19:42:15,650 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:42:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2019-10-13 19:42:15,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 304. [2019-10-13 19:42:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-10-13 19:42:15,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 368 transitions. [2019-10-13 19:42:15,735 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 368 transitions. Word has length 65 [2019-10-13 19:42:15,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:15,736 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 368 transitions. [2019-10-13 19:42:15,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 368 transitions. [2019-10-13 19:42:15,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:42:15,738 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:15,738 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:15,739 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:15,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:15,739 INFO L82 PathProgramCache]: Analyzing trace with hash -652418830, now seen corresponding path program 1 times [2019-10-13 19:42:15,739 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:15,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951092731] [2019-10-13 19:42:15,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:15,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:15,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,116 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:42:16,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951092731] [2019-10-13 19:42:16,205 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:16,205 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:16,205 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277446460] [2019-10-13 19:42:16,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:16,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:16,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:16,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:16,206 INFO L87 Difference]: Start difference. First operand 304 states and 368 transitions. Second operand 9 states. [2019-10-13 19:42:16,950 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:17,768 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:18,915 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:19,176 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:19,524 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:19,828 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:20,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:20,703 INFO L93 Difference]: Finished difference Result 795 states and 1028 transitions. [2019-10-13 19:42:20,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:42:20,704 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-13 19:42:20,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:20,710 INFO L225 Difference]: With dead ends: 795 [2019-10-13 19:42:20,711 INFO L226 Difference]: Without dead ends: 519 [2019-10-13 19:42:20,713 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:42:20,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-10-13 19:42:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 451. [2019-10-13 19:42:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-10-13 19:42:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 537 transitions. [2019-10-13 19:42:20,817 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 537 transitions. Word has length 70 [2019-10-13 19:42:20,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:20,818 INFO L462 AbstractCegarLoop]: Abstraction has 451 states and 537 transitions. [2019-10-13 19:42:20,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 537 transitions. [2019-10-13 19:42:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:42:20,821 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:20,821 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:20,821 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:20,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:20,822 INFO L82 PathProgramCache]: Analyzing trace with hash -918633805, now seen corresponding path program 1 times [2019-10-13 19:42:20,822 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:20,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199815595] [2019-10-13 19:42:20,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:20,823 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:20,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,112 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:21,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199815595] [2019-10-13 19:42:21,365 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:21,365 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:21,366 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764939238] [2019-10-13 19:42:21,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:21,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:21,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:21,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:21,369 INFO L87 Difference]: Start difference. First operand 451 states and 537 transitions. Second operand 9 states. [2019-10-13 19:42:21,748 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:23,019 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:23,294 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:42:23,613 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:23,911 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:42:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:25,270 INFO L93 Difference]: Finished difference Result 1362 states and 1793 transitions. [2019-10-13 19:42:25,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:42:25,271 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2019-10-13 19:42:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:25,279 INFO L225 Difference]: With dead ends: 1362 [2019-10-13 19:42:25,279 INFO L226 Difference]: Without dead ends: 939 [2019-10-13 19:42:25,281 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:42:25,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2019-10-13 19:42:25,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 811. [2019-10-13 19:42:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-10-13 19:42:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 969 transitions. [2019-10-13 19:42:25,506 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 969 transitions. Word has length 108 [2019-10-13 19:42:25,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:25,511 INFO L462 AbstractCegarLoop]: Abstraction has 811 states and 969 transitions. [2019-10-13 19:42:25,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:25,517 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 969 transitions. [2019-10-13 19:42:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:42:25,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:25,527 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:25,527 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:25,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:25,527 INFO L82 PathProgramCache]: Analyzing trace with hash -678093676, now seen corresponding path program 1 times [2019-10-13 19:42:25,528 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:25,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047830296] [2019-10-13 19:42:25,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:25,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:25,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,822 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:25,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047830296] [2019-10-13 19:42:25,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:25,967 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:25,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129081420] [2019-10-13 19:42:25,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:25,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:25,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:25,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:25,968 INFO L87 Difference]: Start difference. First operand 811 states and 969 transitions. Second operand 9 states. [2019-10-13 19:42:27,350 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:27,614 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:42:27,906 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:28,170 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:29,194 INFO L93 Difference]: Finished difference Result 1729 states and 2208 transitions. [2019-10-13 19:42:29,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:42:29,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2019-10-13 19:42:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:29,203 INFO L225 Difference]: With dead ends: 1729 [2019-10-13 19:42:29,203 INFO L226 Difference]: Without dead ends: 946 [2019-10-13 19:42:29,206 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:42:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2019-10-13 19:42:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 831. [2019-10-13 19:42:29,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2019-10-13 19:42:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 989 transitions. [2019-10-13 19:42:29,366 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 989 transitions. Word has length 108 [2019-10-13 19:42:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:29,367 INFO L462 AbstractCegarLoop]: Abstraction has 831 states and 989 transitions. [2019-10-13 19:42:29,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 989 transitions. [2019-10-13 19:42:29,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:42:29,371 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:29,371 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:29,371 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:29,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:29,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1250179026, now seen corresponding path program 1 times [2019-10-13 19:42:29,372 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:29,372 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497387513] [2019-10-13 19:42:29,372 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:29,372 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:29,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,660 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:29,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497387513] [2019-10-13 19:42:29,835 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:29,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:42:29,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682536947] [2019-10-13 19:42:29,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:42:29,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:29,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:42:29,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:42:29,838 INFO L87 Difference]: Start difference. First operand 831 states and 989 transitions. Second operand 11 states. [2019-10-13 19:42:30,754 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:31,023 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:31,294 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:32,226 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:32,532 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:32,804 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:33,916 INFO L93 Difference]: Finished difference Result 1544 states and 1934 transitions. [2019-10-13 19:42:33,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:42:33,917 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-10-13 19:42:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:33,923 INFO L225 Difference]: With dead ends: 1544 [2019-10-13 19:42:33,923 INFO L226 Difference]: Without dead ends: 741 [2019-10-13 19:42:33,926 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:42:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2019-10-13 19:42:34,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 664. [2019-10-13 19:42:34,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-10-13 19:42:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 775 transitions. [2019-10-13 19:42:34,043 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 775 transitions. Word has length 108 [2019-10-13 19:42:34,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:34,046 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 775 transitions. [2019-10-13 19:42:34,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:42:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 775 transitions. [2019-10-13 19:42:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 19:42:34,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:34,052 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:34,052 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:34,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1890897259, now seen corresponding path program 1 times [2019-10-13 19:42:34,053 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:34,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186225252] [2019-10-13 19:42:34,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:34,058 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:34,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,460 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:34,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186225252] [2019-10-13 19:42:34,647 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:34,647 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:42:34,647 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558595855] [2019-10-13 19:42:34,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:42:34,648 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:34,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:42:34,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:42:34,648 INFO L87 Difference]: Start difference. First operand 664 states and 775 transitions. Second operand 12 states. [2019-10-13 19:42:35,231 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:35,949 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:36,756 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:37,118 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:37,394 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:42:37,715 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:37,999 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:40,357 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:40,703 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:41,381 INFO L93 Difference]: Finished difference Result 1955 states and 2469 transitions. [2019-10-13 19:42:41,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-13 19:42:41,382 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 112 [2019-10-13 19:42:41,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:41,393 INFO L225 Difference]: With dead ends: 1955 [2019-10-13 19:42:41,394 INFO L226 Difference]: Without dead ends: 1505 [2019-10-13 19:42:41,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 19:42:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states.