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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:40:31,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:40:31,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:40:31,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:40:31,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:40:31,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:40:31,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:40:31,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:40:31,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:40:31,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:40:31,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:40:31,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:40:31,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:40:31,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:40:31,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:40:31,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:40:31,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:40:31,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:40:31,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:40:31,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:40:31,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:40:31,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:40:31,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:40:31,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:40:31,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:40:31,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:40:31,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:40:31,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:40:31,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:40:31,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:40:31,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:40:31,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:40:31,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:40:31,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:40:31,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:40:31,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:40:31,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:40:31,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:40:31,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:40:31,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:40:31,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:40:31,458 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 [2019-10-14 23:40:31,479 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:40:31,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:40:31,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:40:31,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:40:31,482 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:40:31,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:40:31,482 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:40:31,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:40:31,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:40:31,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:40:31,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:40:31,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:40:31,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:40:31,485 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:40:31,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:40:31,485 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:40:31,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:40:31,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:40:31,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:40:31,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:40:31,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:40:31,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:40:31,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:40:31,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:40:31,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:40:31,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:40:31,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:40:31,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:40:31,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:40:31,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:40:31,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:40:31,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:40:31,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:40:31,775 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:40:31,777 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2019-10-14 23:40:31,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/685d6907a/551f56cc7fdb4ccda5cd9a2d009b1fd1/FLAGcaeb87b8b [2019-10-14 23:40:32,377 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:40:32,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2019-10-14 23:40:32,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/685d6907a/551f56cc7fdb4ccda5cd9a2d009b1fd1/FLAGcaeb87b8b [2019-10-14 23:40:32,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/685d6907a/551f56cc7fdb4ccda5cd9a2d009b1fd1 [2019-10-14 23:40:32,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:40:32,679 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:40:32,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:32,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:40:32,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:40:32,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e20f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:32, skipping insertion in model container [2019-10-14 23:40:32,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:40:32" (1/1) ... [2019-10-14 23:40:32,697 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:40:32,768 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:40:33,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:33,176 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:40:33,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:40:33,309 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:40:33,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33 WrapperNode [2019-10-14 23:40:33,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:40:33,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:40:33,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:40:33,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:40:33,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (1/1) ... [2019-10-14 23:40:33,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (1/1) ... [2019-10-14 23:40:33,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (1/1) ... [2019-10-14 23:40:33,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (1/1) ... [2019-10-14 23:40:33,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (1/1) ... [2019-10-14 23:40:33,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (1/1) ... [2019-10-14 23:40:33,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (1/1) ... [2019-10-14 23:40:33,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:40:33,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:40:33,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:40:33,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:40:33,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (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 [2019-10-14 23:40:33,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:40:33,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:40:33,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:33,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:33,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:33,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:40:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:40:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:40:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:40:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:40:33,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:40:33,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:40:33,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:40:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:40:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:40:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:40:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:40:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:40:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:40:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:40:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:40:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:40:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:40:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:40:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:40:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:40:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:40:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:40:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:40:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:40:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:40:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:40:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:40:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:40:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:40:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:40:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:40:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:40:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:40:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:40:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:40:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:40:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:40:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:40:33,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:40:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:40:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:40:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:40:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:40:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:40:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:40:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:40:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:40:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:40:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:40:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:40:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:40:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:40:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:40:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:40:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:40:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:40:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:40:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:40:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:40:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:40:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:40:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:40:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:40:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:40:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:40:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:40:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:40:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:40:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:40:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:40:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:40:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:40:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:40:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:40:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:40:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:40:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:40:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:40:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-14 23:40:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:40:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:40:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:40:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:40:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:40:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:40:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:40:34,597 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:40:34,597 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:40:34,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:34 BoogieIcfgContainer [2019-10-14 23:40:34,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:40:34,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:40:34,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:40:34,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:40:34,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:40:32" (1/3) ... [2019-10-14 23:40:34,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d32917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:34, skipping insertion in model container [2019-10-14 23:40:34,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:40:33" (2/3) ... [2019-10-14 23:40:34,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d32917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:40:34, skipping insertion in model container [2019-10-14 23:40:34,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:40:34" (3/3) ... [2019-10-14 23:40:34,608 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2019-10-14 23:40:34,620 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:40:34,629 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:40:34,642 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:40:34,670 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:40:34,670 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:40:34,671 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:40:34,671 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:40:34,671 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:40:34,671 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:40:34,671 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:40:34,672 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:40:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2019-10-14 23:40:34,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 23:40:34,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:34,707 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] [2019-10-14 23:40:34,709 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:34,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:34,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1951083148, now seen corresponding path program 1 times [2019-10-14 23:40:34,725 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:34,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055590140] [2019-10-14 23:40:34,726 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:34,726 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:34,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,457 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:35,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055590140] [2019-10-14 23:40:35,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:35,569 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:40:35,569 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121998067] [2019-10-14 23:40:35,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:40:35,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:35,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:40:35,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:40:35,593 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 4 states. [2019-10-14 23:40:36,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:36,712 INFO L93 Difference]: Finished difference Result 308 states and 391 transitions. [2019-10-14 23:40:36,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:40:36,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-14 23:40:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:36,730 INFO L225 Difference]: With dead ends: 308 [2019-10-14 23:40:36,730 INFO L226 Difference]: Without dead ends: 170 [2019-10-14 23:40:36,735 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 [2019-10-14 23:40:36,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-10-14 23:40:36,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 139. [2019-10-14 23:40:36,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-14 23:40:36,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 161 transitions. [2019-10-14 23:40:36,824 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 161 transitions. Word has length 59 [2019-10-14 23:40:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:36,824 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 161 transitions. [2019-10-14 23:40:36,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:40:36,825 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 161 transitions. [2019-10-14 23:40:36,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:40:36,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:36,829 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] [2019-10-14 23:40:36,829 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1220523940, now seen corresponding path program 1 times [2019-10-14 23:40:36,830 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:36,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550936957] [2019-10-14 23:40:36,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:36,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:36,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,171 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:37,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550936957] [2019-10-14 23:40:37,261 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:37,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:40:37,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581826746] [2019-10-14 23:40:37,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:40:37,273 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:37,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:40:37,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:40:37,280 INFO L87 Difference]: Start difference. First operand 139 states and 161 transitions. Second operand 5 states. [2019-10-14 23:40:37,809 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:38,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:38,731 INFO L93 Difference]: Finished difference Result 244 states and 293 transitions. [2019-10-14 23:40:38,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:40:38,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-14 23:40:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:38,734 INFO L225 Difference]: With dead ends: 244 [2019-10-14 23:40:38,735 INFO L226 Difference]: Without dead ends: 160 [2019-10-14 23:40:38,736 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 [2019-10-14 23:40:38,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-14 23:40:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 130. [2019-10-14 23:40:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-14 23:40:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2019-10-14 23:40:38,775 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 60 [2019-10-14 23:40:38,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:38,775 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2019-10-14 23:40:38,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:40:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2019-10-14 23:40:38,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-14 23:40:38,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:38,778 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] [2019-10-14 23:40:38,778 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:38,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:38,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1125066517, now seen corresponding path program 1 times [2019-10-14 23:40:38,779 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:38,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055107778] [2019-10-14 23:40:38,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:38,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:38,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,126 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:39,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055107778] [2019-10-14 23:40:39,330 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:39,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:39,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326119045] [2019-10-14 23:40:39,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:39,331 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:39,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:39,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:39,332 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand 9 states. [2019-10-14 23:40:39,822 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:40,165 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:40:40,440 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:40,717 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:41,747 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:43,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:43,521 INFO L93 Difference]: Finished difference Result 435 states and 529 transitions. [2019-10-14 23:40:43,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:40:43,522 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-10-14 23:40:43,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:43,528 INFO L225 Difference]: With dead ends: 435 [2019-10-14 23:40:43,528 INFO L226 Difference]: Without dead ends: 333 [2019-10-14 23:40:43,529 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:40:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-10-14 23:40:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 268. [2019-10-14 23:40:43,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2019-10-14 23:40:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 318 transitions. [2019-10-14 23:40:43,589 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 318 transitions. Word has length 64 [2019-10-14 23:40:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:43,590 INFO L462 AbstractCegarLoop]: Abstraction has 268 states and 318 transitions. [2019-10-14 23:40:43,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 318 transitions. [2019-10-14 23:40:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:40:43,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:43,594 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] [2019-10-14 23:40:43,594 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:43,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:43,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1836372268, now seen corresponding path program 1 times [2019-10-14 23:40:43,595 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:43,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752773448] [2019-10-14 23:40:43,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:43,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:43,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,916 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:40:44,009 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752773448] [2019-10-14 23:40:44,009 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:44,010 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:44,010 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729197766] [2019-10-14 23:40:44,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:44,011 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:44,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:44,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:44,011 INFO L87 Difference]: Start difference. First operand 268 states and 318 transitions. Second operand 9 states. [2019-10-14 23:40:44,520 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:45,218 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:46,244 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:46,509 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:46,825 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:47,126 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:47,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:47,625 INFO L93 Difference]: Finished difference Result 679 states and 862 transitions. [2019-10-14 23:40:47,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:40:47,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-14 23:40:47,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:47,631 INFO L225 Difference]: With dead ends: 679 [2019-10-14 23:40:47,631 INFO L226 Difference]: Without dead ends: 439 [2019-10-14 23:40:47,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:40:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2019-10-14 23:40:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 379. [2019-10-14 23:40:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-14 23:40:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 451 transitions. [2019-10-14 23:40:47,715 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 451 transitions. Word has length 70 [2019-10-14 23:40:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:47,716 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 451 transitions. [2019-10-14 23:40:47,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 451 transitions. [2019-10-14 23:40:47,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-14 23:40:47,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:47,720 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] [2019-10-14 23:40:47,720 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:47,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1329110427, now seen corresponding path program 1 times [2019-10-14 23:40:47,721 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:47,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727529923] [2019-10-14 23:40:47,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:47,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:47,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,041 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:48,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727529923] [2019-10-14 23:40:48,224 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:48,224 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:48,224 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968385957] [2019-10-14 23:40:48,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:48,225 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:48,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:48,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:48,226 INFO L87 Difference]: Start difference. First operand 379 states and 451 transitions. Second operand 9 states. [2019-10-14 23:40:48,739 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:40:49,821 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:50,088 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:40:50,385 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:50,663 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:52,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:52,045 INFO L93 Difference]: Finished difference Result 1185 states and 1563 transitions. [2019-10-14 23:40:52,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:40:52,046 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2019-10-14 23:40:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:52,052 INFO L225 Difference]: With dead ends: 1185 [2019-10-14 23:40:52,053 INFO L226 Difference]: Without dead ends: 834 [2019-10-14 23:40:52,055 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:52,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2019-10-14 23:40:52,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 717. [2019-10-14 23:40:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-10-14 23:40:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 858 transitions. [2019-10-14 23:40:52,187 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 858 transitions. Word has length 102 [2019-10-14 23:40:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:52,188 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 858 transitions. [2019-10-14 23:40:52,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:52,188 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 858 transitions. [2019-10-14 23:40:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-14 23:40:52,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:52,192 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] [2019-10-14 23:40:52,192 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:52,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:52,193 INFO L82 PathProgramCache]: Analyzing trace with hash 359529404, now seen corresponding path program 1 times [2019-10-14 23:40:52,193 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:52,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764365138] [2019-10-14 23:40:52,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:52,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:52,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,486 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:52,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764365138] [2019-10-14 23:40:52,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:52,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:40:52,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443749887] [2019-10-14 23:40:52,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:40:52,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:52,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:40:52,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:40:52,635 INFO L87 Difference]: Start difference. First operand 717 states and 858 transitions. Second operand 9 states. [2019-10-14 23:40:53,772 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:54,050 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:40:54,348 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:54,640 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:55,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:55,337 INFO L93 Difference]: Finished difference Result 1536 states and 1964 transitions. [2019-10-14 23:40:55,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:40:55,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2019-10-14 23:40:55,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:55,345 INFO L225 Difference]: With dead ends: 1536 [2019-10-14 23:40:55,345 INFO L226 Difference]: Without dead ends: 847 [2019-10-14 23:40:55,347 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:40:55,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-10-14 23:40:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 737. [2019-10-14 23:40:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2019-10-14 23:40:55,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 878 transitions. [2019-10-14 23:40:55,510 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 878 transitions. Word has length 102 [2019-10-14 23:40:55,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:40:55,513 INFO L462 AbstractCegarLoop]: Abstraction has 737 states and 878 transitions. [2019-10-14 23:40:55,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:40:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 878 transitions. [2019-10-14 23:40:55,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-14 23:40:55,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:40:55,523 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] [2019-10-14 23:40:55,523 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:40:55,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:40:55,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1689858438, now seen corresponding path program 1 times [2019-10-14 23:40:55,524 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:40:55,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561907969] [2019-10-14 23:40:55,525 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:55,525 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:40:55,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:40:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,837 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:40:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:40:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:40:56,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561907969] [2019-10-14 23:40:56,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:40:56,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:40:56,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52037473] [2019-10-14 23:40:56,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:40:56,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:40:56,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:40:56,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:40:56,078 INFO L87 Difference]: Start difference. First operand 737 states and 878 transitions. Second operand 11 states. [2019-10-14 23:40:57,013 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:40:57,272 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:57,525 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:58,399 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:58,678 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:58,950 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:40:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:40:59,949 INFO L93 Difference]: Finished difference Result 1360 states and 1702 transitions. [2019-10-14 23:40:59,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:40:59,954 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2019-10-14 23:40:59,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:40:59,959 INFO L225 Difference]: With dead ends: 1360 [2019-10-14 23:40:59,959 INFO L226 Difference]: Without dead ends: 651 [2019-10-14 23:40:59,962 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:40:59,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2019-10-14 23:41:00,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 578. [2019-10-14 23:41:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2019-10-14 23:41:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 674 transitions. [2019-10-14 23:41:00,061 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 674 transitions. Word has length 102 [2019-10-14 23:41:00,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:00,062 INFO L462 AbstractCegarLoop]: Abstraction has 578 states and 674 transitions. [2019-10-14 23:41:00,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:41:00,062 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 674 transitions. [2019-10-14 23:41:00,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-14 23:41:00,064 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:00,065 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] [2019-10-14 23:41:00,067 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:00,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:00,068 INFO L82 PathProgramCache]: Analyzing trace with hash -764679949, now seen corresponding path program 1 times [2019-10-14 23:41:00,068 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:00,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497921160] [2019-10-14 23:41:00,068 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:00,068 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:00,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,450 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:00,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497921160] [2019-10-14 23:41:00,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:00,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:41:00,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470685256] [2019-10-14 23:41:00,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:41:00,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:00,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:41:00,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:41:00,665 INFO L87 Difference]: Start difference. First operand 578 states and 674 transitions. Second operand 12 states. [2019-10-14 23:41:01,253 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:01,917 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:02,634 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:02,998 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:03,277 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:41:03,608 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:03,887 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:05,287 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:05,596 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:06,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:06,196 INFO L93 Difference]: Finished difference Result 1691 states and 2129 transitions. [2019-10-14 23:41:06,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-14 23:41:06,197 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2019-10-14 23:41:06,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:06,205 INFO L225 Difference]: With dead ends: 1691 [2019-10-14 23:41:06,205 INFO L226 Difference]: Without dead ends: 1313 [2019-10-14 23:41:06,208 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-14 23:41:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2019-10-14 23:41:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1197. [2019-10-14 23:41:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2019-10-14 23:41:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1399 transitions. [2019-10-14 23:41:06,380 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1399 transitions. Word has length 106 [2019-10-14 23:41:06,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:06,381 INFO L462 AbstractCegarLoop]: Abstraction has 1197 states and 1399 transitions. [2019-10-14 23:41:06,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:41:06,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1399 transitions. [2019-10-14 23:41:06,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-14 23:41:06,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:06,385 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-14 23:41:06,385 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:06,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:06,385 INFO L82 PathProgramCache]: Analyzing trace with hash -60868023, now seen corresponding path program 1 times [2019-10-14 23:41:06,385 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:06,386 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142753836] [2019-10-14 23:41:06,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:06,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:06,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,689 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-14 23:41:06,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142753836] [2019-10-14 23:41:06,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429584925] [2019-10-14 23:41:06,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:41:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:07,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-14 23:41:07,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:41:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:41:07,376 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:41:07,376 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-14 23:41:07,376 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245241811] [2019-10-14 23:41:07,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-14 23:41:07,377 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:07,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-14 23:41:07,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:41:07,378 INFO L87 Difference]: Start difference. First operand 1197 states and 1399 transitions. Second operand 20 states. [2019-10-14 23:41:08,002 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:41:08,378 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-10-14 23:41:08,693 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:08,987 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:09,739 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-14 23:41:10,037 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-10-14 23:41:10,391 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 193