/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:08:48,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:08:48,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:08:48,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:08:48,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:08:48,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:08:48,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:08:48,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:08:48,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:08:48,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:08:48,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:08:48,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:08:48,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:08:48,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:08:48,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:08:48,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:08:48,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:08:48,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:08:48,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:08:48,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:08:48,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:08:48,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:08:48,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:08:48,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:08:48,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:08:48,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:08:48,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:08:48,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:08:48,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:08:48,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:08:48,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:08:48,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:08:48,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:08:48,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:08:48,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:08:48,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:08:48,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:08:48,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:08:48,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:08:48,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:08:48,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:08:48,473 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 [2019-11-06 22:08:48,496 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:08:48,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:08:48,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:08:48,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:08:48,498 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:08:48,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:08:48,498 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:08:48,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:08:48,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:08:48,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:08:48,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:08:48,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:08:48,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:08:48,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:08:48,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:08:48,500 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:08:48,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:08:48,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:08:48,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:08:48,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:08:48,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:08:48,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:08:48,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:08:48,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:08:48,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:08:48,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:08:48,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:08:48,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:08:48,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:08:48,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:08:48,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:08:48,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:08:48,798 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:08:48,798 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:08:48,799 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-11-06 22:08:48,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca66a95ae/8504e79d1cfd49f8be64fbc61e0b2ec6/FLAG20b9b186a [2019-11-06 22:08:49,424 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:08:49,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-11-06 22:08:49,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca66a95ae/8504e79d1cfd49f8be64fbc61e0b2ec6/FLAG20b9b186a [2019-11-06 22:08:49,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca66a95ae/8504e79d1cfd49f8be64fbc61e0b2ec6 [2019-11-06 22:08:49,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:08:49,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:08:49,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:08:49,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:08:49,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:08:49,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:49" (1/1) ... [2019-11-06 22:08:49,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f25b16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:49, skipping insertion in model container [2019-11-06 22:08:49,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:49" (1/1) ... [2019-11-06 22:08:49,756 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:08:49,827 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:08:50,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:08:50,300 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:08:50,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:08:50,434 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:08:50,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50 WrapperNode [2019-11-06 22:08:50,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:08:50,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:08:50,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:08:50,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:08:50,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (1/1) ... [2019-11-06 22:08:50,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (1/1) ... [2019-11-06 22:08:50,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (1/1) ... [2019-11-06 22:08:50,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (1/1) ... [2019-11-06 22:08:50,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (1/1) ... [2019-11-06 22:08:50,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (1/1) ... [2019-11-06 22:08:50,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (1/1) ... [2019-11-06 22:08:50,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:08:50,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:08:50,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:08:50,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:08:50,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (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 [2019-11-06 22:08:50,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:08:50,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:08:50,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:08:50,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:08:50,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:08:50,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:08:50,620 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:08:50,620 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:08:50,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:08:50,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:08:50,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-11-06 22:08:50,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:08:50,622 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-06 22:08:50,622 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:08:50,623 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:08:50,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:08:50,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:08:50,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:08:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:08:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 22:08:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-11-06 22:08:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-06 22:08:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:08:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:08:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:08:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:08:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:08:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:08:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:08:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 22:08:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:08:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:08:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:08:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:08:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:08:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:08:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:08:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:08:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:08:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:08:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:08:50,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:08:50,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:08:50,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:08:50,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:08:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:08:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:08:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:08:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:08:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:08:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:08:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:08:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:08:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:08:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:08:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:08:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:08:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-06 22:08:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-11-06 22:08:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:08:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:08:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:08:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:08:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:08:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:08:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:08:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 22:08:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:08:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:08:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:08:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:08:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:08:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:08:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:08:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 22:08:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-11-06 22:08:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:08:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-06 22:08:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:08:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:08:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:08:50,640 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:08:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:08:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:08:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:08:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:08:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:08:50,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:08:50,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:08:50,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:08:50,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:08:50,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:08:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:08:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:08:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:08:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:08:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:08:50,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:08:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:08:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:08:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:08:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:08:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:08:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:08:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:08:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:08:51,993 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:08:51,993 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:08:51,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:51 BoogieIcfgContainer [2019-11-06 22:08:51,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:08:51,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:08:51,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:08:52,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:08:52,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:49" (1/3) ... [2019-11-06 22:08:52,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58214edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:52, skipping insertion in model container [2019-11-06 22:08:52,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50" (2/3) ... [2019-11-06 22:08:52,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58214edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:52, skipping insertion in model container [2019-11-06 22:08:52,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:51" (3/3) ... [2019-11-06 22:08:52,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2019-11-06 22:08:52,015 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:08:52,025 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:08:52,036 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:08:52,061 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:08:52,061 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:08:52,061 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:08:52,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:08:52,062 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:08:52,062 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:08:52,062 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:08:52,062 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:08:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2019-11-06 22:08:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:08:52,104 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:52,105 INFO L410 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] [2019-11-06 22:08:52,107 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:52,113 INFO L82 PathProgramCache]: Analyzing trace with hash -304783320, now seen corresponding path program 1 times [2019-11-06 22:08:52,122 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:52,123 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811860965] [2019-11-06 22:08:52,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,873 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:53,008 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811860965] [2019-11-06 22:08:53,009 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:53,009 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:08:53,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733326096] [2019-11-06 22:08:53,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:08:53,015 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:53,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:08:53,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:08:53,030 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2019-11-06 22:08:54,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:54,409 INFO L93 Difference]: Finished difference Result 382 states and 489 transitions. [2019-11-06 22:08:54,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:08:54,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:08:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:54,429 INFO L225 Difference]: With dead ends: 382 [2019-11-06 22:08:54,430 INFO L226 Difference]: Without dead ends: 210 [2019-11-06 22:08:54,434 INFO L630 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 [2019-11-06 22:08:54,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2019-11-06 22:08:54,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 173. [2019-11-06 22:08:54,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-06 22:08:54,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2019-11-06 22:08:54,591 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2019-11-06 22:08:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:54,592 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2019-11-06 22:08:54,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:08:54,593 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2019-11-06 22:08:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-06 22:08:54,605 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:54,605 INFO L410 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] [2019-11-06 22:08:54,606 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:54,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:54,606 INFO L82 PathProgramCache]: Analyzing trace with hash -511503066, now seen corresponding path program 1 times [2019-11-06 22:08:54,606 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:54,607 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993566360] [2019-11-06 22:08:54,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:54,960 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:55,036 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993566360] [2019-11-06 22:08:55,037 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:55,037 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:08:55,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378943959] [2019-11-06 22:08:55,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:08:55,039 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:55,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:08:55,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:08:55,040 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand 5 states. [2019-11-06 22:08:55,556 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:56,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:56,769 INFO L93 Difference]: Finished difference Result 317 states and 389 transitions. [2019-11-06 22:08:56,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:08:56,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-11-06 22:08:56,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:56,776 INFO L225 Difference]: With dead ends: 317 [2019-11-06 22:08:56,777 INFO L226 Difference]: Without dead ends: 200 [2019-11-06 22:08:56,779 INFO L630 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 [2019-11-06 22:08:56,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2019-11-06 22:08:56,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2019-11-06 22:08:56,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-06 22:08:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2019-11-06 22:08:56,859 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2019-11-06 22:08:56,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:56,859 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2019-11-06 22:08:56,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:08:56,860 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2019-11-06 22:08:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-06 22:08:56,863 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:56,863 INFO L410 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] [2019-11-06 22:08:56,864 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:56,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1192401668, now seen corresponding path program 1 times [2019-11-06 22:08:56,864 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:56,865 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782892404] [2019-11-06 22:08:56,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,216 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:57,323 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782892404] [2019-11-06 22:08:57,323 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:57,323 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:57,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016433619] [2019-11-06 22:08:57,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:57,325 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:57,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:57,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:57,326 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand 9 states. [2019-11-06 22:08:57,849 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:58,193 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:58,475 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:58,757 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:59,782 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:02,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:02,280 INFO L93 Difference]: Finished difference Result 549 states and 680 transitions. [2019-11-06 22:09:02,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 22:09:02,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-11-06 22:09:02,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:02,286 INFO L225 Difference]: With dead ends: 549 [2019-11-06 22:09:02,286 INFO L226 Difference]: Without dead ends: 413 [2019-11-06 22:09:02,287 INFO L630 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 [2019-11-06 22:09:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-11-06 22:09:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 344. [2019-11-06 22:09:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2019-11-06 22:09:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2019-11-06 22:09:02,372 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2019-11-06 22:09:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:02,372 INFO L462 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2019-11-06 22:09:02,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:09:02,372 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2019-11-06 22:09:02,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-06 22:09:02,374 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:02,374 INFO L410 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] [2019-11-06 22:09:02,374 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:02,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1231670033, now seen corresponding path program 1 times [2019-11-06 22:09:02,375 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:02,375 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755825658] [2019-11-06 22:09:02,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,755 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:09:02,857 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755825658] [2019-11-06 22:09:02,857 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:02,857 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:09:02,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166498096] [2019-11-06 22:09:02,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:09:02,860 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:02,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:09:02,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:09:02,862 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 9 states. [2019-11-06 22:09:03,323 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:04,113 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:05,247 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:05,503 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:05,829 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:06,170 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:07,234 INFO L93 Difference]: Finished difference Result 891 states and 1152 transitions. [2019-11-06 22:09:07,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:09:07,235 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-11-06 22:09:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:07,241 INFO L225 Difference]: With dead ends: 891 [2019-11-06 22:09:07,241 INFO L226 Difference]: Without dead ends: 575 [2019-11-06 22:09:07,243 INFO L630 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 [2019-11-06 22:09:07,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-11-06 22:09:07,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 507. [2019-11-06 22:09:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2019-11-06 22:09:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2019-11-06 22:09:07,348 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 70 [2019-11-06 22:09:07,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:07,348 INFO L462 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2019-11-06 22:09:07,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:09:07,349 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2019-11-06 22:09:07,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-06 22:09:07,351 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:07,351 INFO L410 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, 1] [2019-11-06 22:09:07,351 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:07,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:07,351 INFO L82 PathProgramCache]: Analyzing trace with hash 853087743, now seen corresponding path program 1 times [2019-11-06 22:09:07,352 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:07,352 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060183848] [2019-11-06 22:09:07,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,636 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:09:07,797 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060183848] [2019-11-06 22:09:07,797 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:07,797 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:09:07,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892410393] [2019-11-06 22:09:07,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:09:07,799 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:07,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:09:07,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:09:07,800 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand 9 states. [2019-11-06 22:09:09,173 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:09,443 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:09:09,718 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:10,002 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:11,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:11,015 INFO L93 Difference]: Finished difference Result 1079 states and 1378 transitions. [2019-11-06 22:09:11,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:09:11,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2019-11-06 22:09:11,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:11,027 INFO L225 Difference]: With dead ends: 1079 [2019-11-06 22:09:11,027 INFO L226 Difference]: Without dead ends: 600 [2019-11-06 22:09:11,029 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:09:11,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-06 22:09:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2019-11-06 22:09:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2019-11-06 22:09:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2019-11-06 22:09:11,139 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2019-11-06 22:09:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:11,140 INFO L462 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2019-11-06 22:09:11,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:09:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2019-11-06 22:09:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-06 22:09:11,142 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:11,142 INFO L410 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, 1] [2019-11-06 22:09:11,143 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:11,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1502717507, now seen corresponding path program 1 times [2019-11-06 22:09:11,144 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:11,144 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325088861] [2019-11-06 22:09:11,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,438 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:09:11,606 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325088861] [2019-11-06 22:09:11,607 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:11,607 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:09:11,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506245736] [2019-11-06 22:09:11,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:09:11,608 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:11,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:09:11,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:09:11,609 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 11 states. [2019-11-06 22:09:12,169 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:12,451 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:12,722 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:13,687 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:14,024 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:14,335 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:15,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:15,623 INFO L93 Difference]: Finished difference Result 1102 states and 1402 transitions. [2019-11-06 22:09:15,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:09:15,624 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2019-11-06 22:09:15,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:15,629 INFO L225 Difference]: With dead ends: 1102 [2019-11-06 22:09:15,629 INFO L226 Difference]: Without dead ends: 610 [2019-11-06 22:09:15,631 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:09:15,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2019-11-06 22:09:15,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 528. [2019-11-06 22:09:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-11-06 22:09:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2019-11-06 22:09:15,718 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2019-11-06 22:09:15,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:15,719 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2019-11-06 22:09:15,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:09:15,719 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2019-11-06 22:09:15,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-06 22:09:15,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:15,721 INFO L410 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, 1] [2019-11-06 22:09:15,721 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:15,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:15,722 INFO L82 PathProgramCache]: Analyzing trace with hash -733547492, now seen corresponding path program 1 times [2019-11-06 22:09:15,722 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:15,722 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167784140] [2019-11-06 22:09:15,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,061 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:09:16,236 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167784140] [2019-11-06 22:09:16,237 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:16,237 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:09:16,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101758254] [2019-11-06 22:09:16,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:09:16,238 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:16,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:09:16,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:09:16,240 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand 7 states. [2019-11-06 22:09:16,822 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:17,379 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:19,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:19,904 INFO L93 Difference]: Finished difference Result 1603 states and 2056 transitions. [2019-11-06 22:09:19,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:09:19,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-11-06 22:09:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:19,912 INFO L225 Difference]: With dead ends: 1603 [2019-11-06 22:09:19,912 INFO L226 Difference]: Without dead ends: 1103 [2019-11-06 22:09:19,915 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:09:19,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2019-11-06 22:09:20,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1025. [2019-11-06 22:09:20,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2019-11-06 22:09:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1239 transitions. [2019-11-06 22:09:20,160 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1239 transitions. Word has length 113 [2019-11-06 22:09:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:20,161 INFO L462 AbstractCegarLoop]: Abstraction has 1025 states and 1239 transitions. [2019-11-06 22:09:20,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:09:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1239 transitions. [2019-11-06 22:09:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-06 22:09:20,169 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:20,169 INFO L410 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, 1, 1, 1, 1, 1] [2019-11-06 22:09:20,170 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:20,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:20,170 INFO L82 PathProgramCache]: Analyzing trace with hash 216342370, now seen corresponding path program 1 times [2019-11-06 22:09:20,171 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:20,171 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322572662] [2019-11-06 22:09:20,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,576 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:09:20,761 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322572662] [2019-11-06 22:09:20,761 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:20,761 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:09:20,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824660436] [2019-11-06 22:09:20,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:09:20,762 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:20,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:09:20,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:09:20,763 INFO L87 Difference]: Start difference. First operand 1025 states and 1239 transitions. Second operand 12 states. [2019-11-06 22:09:21,735 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:22,443 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:23,211 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:23,585 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:23,854 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:09:24,162 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:24,460 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191