/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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:08:38,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:08:38,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:08:38,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:08:38,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:08:38,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:08:38,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:08:38,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:08:38,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:08:38,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:08:38,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:08:38,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:08:38,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:08:38,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:08:38,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:08:38,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:08:38,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:08:38,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:08:38,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:08:38,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:08:38,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:08:38,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:08:38,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:08:38,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:08:38,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:08:38,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:08:38,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:08:38,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:08:38,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:08:38,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:08:38,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:08:38,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:08:38,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:08:38,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:08:38,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:08:38,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:08:38,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:08:38,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:08:38,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:08:38,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:08:38,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:08:38,442 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 22:08:38,470 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:08:38,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:08:38,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:08:38,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:08:38,472 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:08:38,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:08:38,473 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:08:38,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:08:38,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:08:38,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:08:38,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:08:38,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:08:38,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:08:38,474 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:08:38,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:08:38,474 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:08:38,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:08:38,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:08:38,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:08:38,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:08:38,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:08:38,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:08:38,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:08:38,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:08:38,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:08:38,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:08:38,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:08:38,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:08:38,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:08:38,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:08:38,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:08:38,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:08:38,793 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:08:38,793 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:08:38,794 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-11-06 22:08:38,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3868273dd/99010b3eb8374142b1f99ba8fdcd0271/FLAGf378103b1 [2019-11-06 22:08:39,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:08:39,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-11-06 22:08:39,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3868273dd/99010b3eb8374142b1f99ba8fdcd0271/FLAGf378103b1 [2019-11-06 22:08:39,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3868273dd/99010b3eb8374142b1f99ba8fdcd0271 [2019-11-06 22:08:39,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:08:39,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:08:39,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:08:39,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:08:39,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:08:39,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:39" (1/1) ... [2019-11-06 22:08:39,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9f84e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:39, skipping insertion in model container [2019-11-06 22:08:39,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:39" (1/1) ... [2019-11-06 22:08:39,814 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:08:39,876 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:08:40,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:08:40,307 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:08:40,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:08:40,505 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:08:40,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40 WrapperNode [2019-11-06 22:08:40,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:08:40,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:08:40,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:08:40,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:08:40,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (1/1) ... [2019-11-06 22:08:40,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (1/1) ... [2019-11-06 22:08:40,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (1/1) ... [2019-11-06 22:08:40,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (1/1) ... [2019-11-06 22:08:40,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (1/1) ... [2019-11-06 22:08:40,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (1/1) ... [2019-11-06 22:08:40,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (1/1) ... [2019-11-06 22:08:40,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:08:40,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:08:40,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:08:40,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:08:40,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (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 22:08:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:08:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:08:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:08:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:08:40,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:08:40,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:08:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-11-06 22:08:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:08:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-06 22:08:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:08:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:08:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:08:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:08:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:08:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:08:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 22:08:40,702 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-06 22:08:40,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:08:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:08:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:08:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:08:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:08:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:08:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:08:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:08:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:08:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:08:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:08:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:08:40,705 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:08:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:08:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:08:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:08:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:08:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 22:08:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:08:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:08:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:08:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:08:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:08:40,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:08:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:08:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:08:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:08:40,708 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:08:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:08:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:08:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:08:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:08:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:08:40,709 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:08:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:08:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 22:08:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:08:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:08:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:08:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:08:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:08:40,711 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-06 22:08:40,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:08:40,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:08:40,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:08:40,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:08:40,711 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:08:40,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:08:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 22:08:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-11-06 22:08:40,712 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:08:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-06 22:08:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:08:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:08:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:08:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:08:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:08:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:08:40,715 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:08:40,715 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:08:40,715 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:08:40,715 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:08:40,715 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:08:40,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:08:40,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:08:40,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:08:40,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:08:40,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:08:40,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:08:40,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:08:40,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:08:40,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:08:40,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:08:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:08:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:08:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:08:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:08:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:08:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:08:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:08:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:08:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:08:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:08:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:08:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:08:40,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:08:40,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:08:41,983 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:08:41,983 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:08:41,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:41 BoogieIcfgContainer [2019-11-06 22:08:41,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:08:41,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:08:41,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:08:41,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:08:41,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:39" (1/3) ... [2019-11-06 22:08:41,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73045c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:41, skipping insertion in model container [2019-11-06 22:08:41,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:40" (2/3) ... [2019-11-06 22:08:41,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73045c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:41, skipping insertion in model container [2019-11-06 22:08:41,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:41" (3/3) ... [2019-11-06 22:08:41,996 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2019-11-06 22:08:42,007 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:08:42,017 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:08:42,028 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:08:42,070 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:08:42,070 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:08:42,070 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:08:42,070 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:08:42,071 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:08:42,072 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:08:42,072 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:08:42,072 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:08:42,101 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2019-11-06 22:08:42,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:08:42,112 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:42,113 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 22:08:42,115 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:42,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:42,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1456889578, now seen corresponding path program 1 times [2019-11-06 22:08:42,129 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:42,130 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818263921] [2019-11-06 22:08:42,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,841 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:43,008 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 22:08:43,009 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818263921] [2019-11-06 22:08:43,011 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:43,011 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:08:43,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351226068] [2019-11-06 22:08:43,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:08:43,020 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:43,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:08:43,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:08:43,039 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 4 states. [2019-11-06 22:08:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:44,291 INFO L93 Difference]: Finished difference Result 367 states and 468 transitions. [2019-11-06 22:08:44,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:08:44,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:08:44,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:44,309 INFO L225 Difference]: With dead ends: 367 [2019-11-06 22:08:44,309 INFO L226 Difference]: Without dead ends: 201 [2019-11-06 22:08:44,314 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 22:08:44,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2019-11-06 22:08:44,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 167. [2019-11-06 22:08:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-06 22:08:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 197 transitions. [2019-11-06 22:08:44,443 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 197 transitions. Word has length 59 [2019-11-06 22:08:44,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:44,443 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 197 transitions. [2019-11-06 22:08:44,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:08:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 197 transitions. [2019-11-06 22:08:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-06 22:08:44,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:44,456 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 22:08:44,456 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:44,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:44,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1129690590, now seen corresponding path program 1 times [2019-11-06 22:08:44,457 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:44,457 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794024586] [2019-11-06 22:08:44,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,823 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:44,900 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 22:08:44,900 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794024586] [2019-11-06 22:08:44,901 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:44,901 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:08:44,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176397360] [2019-11-06 22:08:44,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:08:44,914 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:44,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:08:44,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:08:44,919 INFO L87 Difference]: Start difference. First operand 167 states and 197 transitions. Second operand 5 states. [2019-11-06 22:08:45,497 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:46,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:46,606 INFO L93 Difference]: Finished difference Result 308 states and 376 transitions. [2019-11-06 22:08:46,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:08:46,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-11-06 22:08:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:46,616 INFO L225 Difference]: With dead ends: 308 [2019-11-06 22:08:46,616 INFO L226 Difference]: Without dead ends: 191 [2019-11-06 22:08:46,618 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 22:08:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-11-06 22:08:46,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2019-11-06 22:08:46,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-06 22:08:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2019-11-06 22:08:46,665 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 60 [2019-11-06 22:08:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:46,665 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2019-11-06 22:08:46,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:08:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2019-11-06 22:08:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-06 22:08:46,667 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:46,667 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 22:08:46,667 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:46,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:46,668 INFO L82 PathProgramCache]: Analyzing trace with hash -651026134, now seen corresponding path program 1 times [2019-11-06 22:08:46,668 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:46,668 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958313111] [2019-11-06 22:08:46,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,046 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:47,179 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 22:08:47,180 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958313111] [2019-11-06 22:08:47,180 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:47,180 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:47,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384384922] [2019-11-06 22:08:47,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:47,181 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:47,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:47,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:47,182 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand 9 states. [2019-11-06 22:08:47,579 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:47,959 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 22:08:48,232 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:48,507 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:50,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:50,030 INFO L93 Difference]: Finished difference Result 321 states and 395 transitions. [2019-11-06 22:08:50,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:08:50,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-11-06 22:08:50,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:50,036 INFO L225 Difference]: With dead ends: 321 [2019-11-06 22:08:50,036 INFO L226 Difference]: Without dead ends: 191 [2019-11-06 22:08:50,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:08:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-11-06 22:08:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2019-11-06 22:08:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-06 22:08:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2019-11-06 22:08:50,077 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 65 [2019-11-06 22:08:50,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:50,078 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2019-11-06 22:08:50,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2019-11-06 22:08:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-06 22:08:50,079 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:50,080 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] [2019-11-06 22:08:50,080 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:50,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1717523051, now seen corresponding path program 1 times [2019-11-06 22:08:50,080 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:50,081 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768369332] [2019-11-06 22:08:50,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,374 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:50,481 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 22:08:50,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768369332] [2019-11-06 22:08:50,482 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:50,482 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:08:50,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551607824] [2019-11-06 22:08:50,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:08:50,483 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:50,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:08:50,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:08:50,484 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand 7 states. [2019-11-06 22:08:50,895 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:52,607 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:53,297 INFO L93 Difference]: Finished difference Result 439 states and 543 transitions. [2019-11-06 22:08:53,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:08:53,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-11-06 22:08:53,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:53,302 INFO L225 Difference]: With dead ends: 439 [2019-11-06 22:08:53,302 INFO L226 Difference]: Without dead ends: 309 [2019-11-06 22:08:53,303 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-11-06 22:08:53,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-11-06 22:08:53,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 263. [2019-11-06 22:08:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-11-06 22:08:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 298 transitions. [2019-11-06 22:08:53,356 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 298 transitions. Word has length 83 [2019-11-06 22:08:53,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:53,356 INFO L462 AbstractCegarLoop]: Abstraction has 263 states and 298 transitions. [2019-11-06 22:08:53,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:08:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 298 transitions. [2019-11-06 22:08:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-06 22:08:53,358 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:53,358 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] [2019-11-06 22:08:53,358 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:53,359 INFO L82 PathProgramCache]: Analyzing trace with hash 119397721, now seen corresponding path program 1 times [2019-11-06 22:08:53,359 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:53,359 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741829839] [2019-11-06 22:08:53,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,675 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:53,836 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 22:08:53,837 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741829839] [2019-11-06 22:08:53,837 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:53,837 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:53,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492346040] [2019-11-06 22:08:53,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:53,838 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:53,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:53,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:53,839 INFO L87 Difference]: Start difference. First operand 263 states and 298 transitions. Second operand 9 states. [2019-11-06 22:08:54,270 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:55,027 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:56,035 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:56,323 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:56,735 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:56,992 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:57,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:57,677 INFO L93 Difference]: Finished difference Result 543 states and 648 transitions. [2019-11-06 22:08:57,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:08:57,678 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2019-11-06 22:08:57,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:57,683 INFO L225 Difference]: With dead ends: 543 [2019-11-06 22:08:57,683 INFO L226 Difference]: Without dead ends: 308 [2019-11-06 22:08:57,684 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:08:57,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-11-06 22:08:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 262. [2019-11-06 22:08:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-11-06 22:08:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 295 transitions. [2019-11-06 22:08:57,733 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 295 transitions. Word has length 97 [2019-11-06 22:08:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:57,734 INFO L462 AbstractCegarLoop]: Abstraction has 262 states and 295 transitions. [2019-11-06 22:08:57,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 295 transitions. [2019-11-06 22:08:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-06 22:08:57,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:57,736 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 22:08:57,736 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:57,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:57,736 INFO L82 PathProgramCache]: Analyzing trace with hash 299468705, now seen corresponding path program 1 times [2019-11-06 22:08:57,737 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:57,737 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135260687] [2019-11-06 22:08:57,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:57,987 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:58,112 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 22:08:58,113 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135260687] [2019-11-06 22:08:58,113 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:58,113 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:58,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610718825] [2019-11-06 22:08:58,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:58,114 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:58,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:58,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:58,115 INFO L87 Difference]: Start difference. First operand 262 states and 295 transitions. Second operand 9 states. [2019-11-06 22:08:59,225 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:59,479 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:08:59,742 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:00,007 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:00,980 INFO L93 Difference]: Finished difference Result 543 states and 653 transitions. [2019-11-06 22:09:00,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:09:00,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2019-11-06 22:09:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:00,988 INFO L225 Difference]: With dead ends: 543 [2019-11-06 22:09:00,989 INFO L226 Difference]: Without dead ends: 309 [2019-11-06 22:09:00,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:09:00,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-11-06 22:09:01,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 267. [2019-11-06 22:09:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-11-06 22:09:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 300 transitions. [2019-11-06 22:09:01,059 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 300 transitions. Word has length 113 [2019-11-06 22:09:01,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:01,060 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 300 transitions. [2019-11-06 22:09:01,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:09:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 300 transitions. [2019-11-06 22:09:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-06 22:09:01,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:01,061 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 22:09:01,062 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2056336545, now seen corresponding path program 1 times [2019-11-06 22:09:01,062 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:01,063 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22458542] [2019-11-06 22:09:01,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,344 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:01,533 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 22:09:01,534 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22458542] [2019-11-06 22:09:01,534 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:01,534 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:09:01,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273439181] [2019-11-06 22:09:01,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:09:01,535 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:01,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:09:01,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:09:01,536 INFO L87 Difference]: Start difference. First operand 267 states and 300 transitions. Second operand 11 states. [2019-11-06 22:09:02,510 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:02,745 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:02,997 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:03,818 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:04,087 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:04,350 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:05,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:05,645 INFO L93 Difference]: Finished difference Result 553 states and 664 transitions. [2019-11-06 22:09:05,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:09:05,649 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2019-11-06 22:09:05,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:05,654 INFO L225 Difference]: With dead ends: 553 [2019-11-06 22:09:05,654 INFO L226 Difference]: Without dead ends: 314 [2019-11-06 22:09:05,656 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:09:05,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-11-06 22:09:05,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 271. [2019-11-06 22:09:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2019-11-06 22:09:05,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 304 transitions. [2019-11-06 22:09:05,725 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 304 transitions. Word has length 113 [2019-11-06 22:09:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:05,726 INFO L462 AbstractCegarLoop]: Abstraction has 271 states and 304 transitions. [2019-11-06 22:09:05,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:09:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 304 transitions. [2019-11-06 22:09:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-06 22:09:05,731 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:05,731 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 22:09:05,731 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:05,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1287166530, now seen corresponding path program 1 times [2019-11-06 22:09:05,732 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:05,733 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688843290] [2019-11-06 22:09:05,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,032 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:06,183 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 22:09:06,183 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688843290] [2019-11-06 22:09:06,183 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:06,184 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:09:06,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706235476] [2019-11-06 22:09:06,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:09:06,185 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:06,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:09:06,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:09:06,185 INFO L87 Difference]: Start difference. First operand 271 states and 304 transitions. Second operand 7 states. [2019-11-06 22:09:06,541 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:07,124 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:09,456 INFO L93 Difference]: Finished difference Result 745 states and 915 transitions. [2019-11-06 22:09:09,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:09:09,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-11-06 22:09:09,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:09,461 INFO L225 Difference]: With dead ends: 745 [2019-11-06 22:09:09,461 INFO L226 Difference]: Without dead ends: 502 [2019-11-06 22:09:09,462 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 22:09:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2019-11-06 22:09:09,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 460. [2019-11-06 22:09:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2019-11-06 22:09:09,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 532 transitions. [2019-11-06 22:09:09,544 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 532 transitions. Word has length 113 [2019-11-06 22:09:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:09,544 INFO L462 AbstractCegarLoop]: Abstraction has 460 states and 532 transitions. [2019-11-06 22:09:09,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:09:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 532 transitions. [2019-11-06 22:09:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-06 22:09:09,546 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:09,546 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 22:09:09,547 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:09,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:09,547 INFO L82 PathProgramCache]: Analyzing trace with hash -803017404, now seen corresponding path program 1 times [2019-11-06 22:09:09,547 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:09,548 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454678462] [2019-11-06 22:09:09,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:09,892 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:10,087 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 22:09:10,088 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454678462] [2019-11-06 22:09:10,088 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:10,088 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:09:10,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026112775] [2019-11-06 22:09:10,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:09:10,089 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:10,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:09:10,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:09:10,090 INFO L87 Difference]: Start difference. First operand 460 states and 532 transitions. Second operand 12 states. [2019-11-06 22:09:10,558 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:11,299 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:12,644 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:12,991 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:13,276 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:09:13,607 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:13,945 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:09:15,639 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:09:15,925 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:09:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:16,893 INFO L93 Difference]: Finished difference Result 1281 states and 1569 transitions. [2019-11-06 22:09:16,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-06 22:09:16,894 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2019-11-06 22:09:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:16,900 INFO L225 Difference]: With dead ends: 1281 [2019-11-06 22:09:16,900 INFO L226 Difference]: Without dead ends: 928 [2019-11-06 22:09:16,902 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 22:09:16,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2019-11-06 22:09:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 803. [2019-11-06 22:09:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-11-06 22:09:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 919 transitions. [2019-11-06 22:09:17,023 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 919 transitions. Word has length 117 [2019-11-06 22:09:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:17,023 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 919 transitions. [2019-11-06 22:09:17,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:09:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 919 transitions. [2019-11-06 22:09:17,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-11-06 22:09:17,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:17,027 INFO L410 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, 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, 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 22:09:17,027 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:17,028 INFO L82 PathProgramCache]: Analyzing trace with hash -394036424, now seen corresponding path program 1 times [2019-11-06 22:09:17,028 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:17,028 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699984477] [2019-11-06 22:09:17,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,360 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:09:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,683 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-06 22:09:17,684 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699984477] [2019-11-06 22:09:17,684 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355407108] [2019-11-06 22:09:17,684 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 [2019-11-06 22:09:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-06 22:09:17,953 INFO L279 TraceCheckSpWp]: Computing forward predicates...