/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 --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:03:40,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:03:40,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:03:40,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:03:40,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:03:40,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:03:40,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:03:40,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:03:40,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:03:40,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:03:40,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:03:40,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:03:40,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:03:40,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:03:40,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:03:40,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:03:40,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:03:40,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:03:40,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:03:40,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:03:40,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:03:40,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:03:40,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:03:40,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:03:40,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:03:40,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:03:40,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:03:40,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:03:40,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:03:40,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:03:40,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:03:40,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:03:40,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:03:40,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:03:40,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:03:40,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:03:40,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:03:40,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:03:40,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:03:40,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:03:40,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:03:40,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 21:03:40,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:03:40,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:03:40,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:03:40,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:03:40,606 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:03:40,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:03:40,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:03:40,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:03:40,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:03:40,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:03:40,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:03:40,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:03:40,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:03:40,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:03:40,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:03:40,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:03:40,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:03:40,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:03:40,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:03:40,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:03:40,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:03:40,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:03:40,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:03:40,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:03:40,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:03:40,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:03:40,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:03:40,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:03:40,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:03:40,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:03:40,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:03:40,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:03:40,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:03:40,918 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:03:40,918 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:03:40,919 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-07-19 21:03:40,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6831dc2b0/5d53d464864f48a4a9faacaf61339792/FLAG7f98ddff0 [2020-07-19 21:03:41,496 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:03:41,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-07-19 21:03:41,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6831dc2b0/5d53d464864f48a4a9faacaf61339792/FLAG7f98ddff0 [2020-07-19 21:03:41,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6831dc2b0/5d53d464864f48a4a9faacaf61339792 [2020-07-19 21:03:41,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:03:41,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:03:41,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:03:41,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:03:41,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:03:41,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:03:41" (1/1) ... [2020-07-19 21:03:41,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:41, skipping insertion in model container [2020-07-19 21:03:41,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:03:41" (1/1) ... [2020-07-19 21:03:41,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:03:41,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:03:42,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:03:42,411 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:03:42,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:03:42,538 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:03:42,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42 WrapperNode [2020-07-19 21:03:42,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:03:42,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:03:42,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:03:42,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:03:42,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... [2020-07-19 21:03:42,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... [2020-07-19 21:03:42,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... [2020-07-19 21:03:42,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... [2020-07-19 21:03:42,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... [2020-07-19 21:03:42,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... [2020-07-19 21:03:42,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... [2020-07-19 21:03:42,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:03:42,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:03:42,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:03:42,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:03:42,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:03:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:03:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:03:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 21:03:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 21:03:42,699 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 21:03:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 21:03:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 21:03:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-19 21:03:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 21:03:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 21:03:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 21:03:42,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 21:03:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 21:03:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-19 21:03:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 21:03:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 21:03:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 21:03:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 21:03:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 21:03:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 21:03:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 21:03:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 21:03:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 21:03:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 21:03:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 21:03:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 21:03:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 21:03:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 21:03:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 21:03:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 21:03:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 21:03:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 21:03:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 21:03:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 21:03:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 21:03:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 21:03:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 21:03:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 21:03:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 21:03:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-19 21:03:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 21:03:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 21:03:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 21:03:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 21:03:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 21:03:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:03:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 21:03:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 21:03:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 21:03:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 21:03:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 21:03:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 21:03:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:03:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 21:03:42,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 21:03:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:03:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 21:03:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 21:03:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:03:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 21:03:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 21:03:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 21:03:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:03:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 21:03:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:03:43,775 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:03:43,775 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 21:03:43,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:03:43 BoogieIcfgContainer [2020-07-19 21:03:43,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:03:43,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:03:43,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:03:43,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:03:43,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:03:41" (1/3) ... [2020-07-19 21:03:43,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f490a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:03:43, skipping insertion in model container [2020-07-19 21:03:43,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:03:42" (2/3) ... [2020-07-19 21:03:43,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f490a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:03:43, skipping insertion in model container [2020-07-19 21:03:43,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:03:43" (3/3) ... [2020-07-19 21:03:43,789 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-07-19 21:03:43,799 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:03:43,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:03:43,821 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:03:43,847 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:03:43,847 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:03:43,847 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:03:43,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:03:43,848 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:03:43,848 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:03:43,848 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:03:43,849 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:03:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-07-19 21:03:43,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 21:03:43,881 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:43,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:43,882 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:43,888 INFO L82 PathProgramCache]: Analyzing trace with hash -589768967, now seen corresponding path program 1 times [2020-07-19 21:03:43,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:43,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121904288] [2020-07-19 21:03:43,898 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:03:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,562 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:03:44,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121904288] [2020-07-19 21:03:44,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:03:44,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:03:44,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068165261] [2020-07-19 21:03:44,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:03:44,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:44,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:03:44,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:03:44,692 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2020-07-19 21:03:45,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:45,995 INFO L93 Difference]: Finished difference Result 343 states and 441 transitions. [2020-07-19 21:03:45,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:03:45,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 21:03:45,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:46,012 INFO L225 Difference]: With dead ends: 343 [2020-07-19 21:03:46,012 INFO L226 Difference]: Without dead ends: 185 [2020-07-19 21:03:46,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:03:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-07-19 21:03:46,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2020-07-19 21:03:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-07-19 21:03:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2020-07-19 21:03:46,122 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 46 [2020-07-19 21:03:46,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:46,123 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2020-07-19 21:03:46,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:03:46,124 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2020-07-19 21:03:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 21:03:46,134 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:46,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:46,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:03:46,136 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:46,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:46,137 INFO L82 PathProgramCache]: Analyzing trace with hash -211037911, now seen corresponding path program 1 times [2020-07-19 21:03:46,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:46,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684111167] [2020-07-19 21:03:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:03:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,543 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:03:46,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684111167] [2020-07-19 21:03:46,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:03:46,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:03:46,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161724974] [2020-07-19 21:03:46,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 21:03:46,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:46,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 21:03:46,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 21:03:46,589 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand 4 states. [2020-07-19 21:03:47,012 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:03:47,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:47,890 INFO L93 Difference]: Finished difference Result 270 states and 324 transitions. [2020-07-19 21:03:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:03:47,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 21:03:47,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:47,905 INFO L225 Difference]: With dead ends: 270 [2020-07-19 21:03:47,906 INFO L226 Difference]: Without dead ends: 169 [2020-07-19 21:03:47,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:03:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-07-19 21:03:47,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2020-07-19 21:03:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-19 21:03:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2020-07-19 21:03:47,985 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 47 [2020-07-19 21:03:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:47,986 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2020-07-19 21:03:47,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 21:03:47,986 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2020-07-19 21:03:47,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 21:03:47,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:47,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:47,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:03:47,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:47,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:47,993 INFO L82 PathProgramCache]: Analyzing trace with hash 607971640, now seen corresponding path program 1 times [2020-07-19 21:03:47,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:47,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871521915] [2020-07-19 21:03:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:03:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,357 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:03:48,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871521915] [2020-07-19 21:03:48,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:03:48,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:03:48,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058794446] [2020-07-19 21:03:48,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:03:48,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:48,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:03:48,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:03:48,449 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand 8 states. [2020-07-19 21:03:48,828 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:49,161 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:03:49,408 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:49,660 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:50,382 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:03:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:52,415 INFO L93 Difference]: Finished difference Result 476 states and 582 transitions. [2020-07-19 21:03:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 21:03:52,415 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-19 21:03:52,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:52,421 INFO L225 Difference]: With dead ends: 476 [2020-07-19 21:03:52,421 INFO L226 Difference]: Without dead ends: 360 [2020-07-19 21:03:52,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:03:52,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-07-19 21:03:52,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 298. [2020-07-19 21:03:52,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-19 21:03:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2020-07-19 21:03:52,505 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 51 [2020-07-19 21:03:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:52,506 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2020-07-19 21:03:52,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:03:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2020-07-19 21:03:52,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 21:03:52,508 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:52,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:52,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:03:52,508 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:52,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1795694260, now seen corresponding path program 1 times [2020-07-19 21:03:52,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:52,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122446915] [2020-07-19 21:03:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:03:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,844 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:03:52,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122446915] [2020-07-19 21:03:52,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:03:52,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 21:03:52,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106899809] [2020-07-19 21:03:52,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 21:03:52,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:52,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 21:03:52,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:03:52,974 INFO L87 Difference]: Start difference. First operand 298 states and 356 transitions. Second operand 12 states. [2020-07-19 21:03:53,463 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:53,793 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:03:54,049 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:54,302 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:54,863 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:03:55,705 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:56,133 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:03:56,504 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:03:56,757 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 21:03:57,040 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:57,416 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:03:57,783 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:03:58,161 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:04:00,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:00,229 INFO L93 Difference]: Finished difference Result 1213 states and 1632 transitions. [2020-07-19 21:04:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 21:04:00,230 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-07-19 21:04:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:00,239 INFO L225 Difference]: With dead ends: 1213 [2020-07-19 21:04:00,240 INFO L226 Difference]: Without dead ends: 939 [2020-07-19 21:04:00,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-19 21:04:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-07-19 21:04:00,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 842. [2020-07-19 21:04:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-07-19 21:04:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1054 transitions. [2020-07-19 21:04:00,468 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1054 transitions. Word has length 57 [2020-07-19 21:04:00,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:00,468 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1054 transitions. [2020-07-19 21:04:00,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 21:04:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1054 transitions. [2020-07-19 21:04:00,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-19 21:04:00,472 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:00,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:04:00,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:04:00,472 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:00,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:00,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2070558330, now seen corresponding path program 1 times [2020-07-19 21:04:00,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:00,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722646135] [2020-07-19 21:04:00,474 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,730 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:04:00,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722646135] [2020-07-19 21:04:00,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:04:00,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 21:04:00,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749174885] [2020-07-19 21:04:00,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:04:00,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:00,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:04:00,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:04:00,843 INFO L87 Difference]: Start difference. First operand 842 states and 1054 transitions. Second operand 6 states. [2020-07-19 21:04:01,193 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:02,989 INFO L93 Difference]: Finished difference Result 1979 states and 2649 transitions. [2020-07-19 21:04:02,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:04:02,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-19 21:04:02,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:02,999 INFO L225 Difference]: With dead ends: 1979 [2020-07-19 21:04:02,999 INFO L226 Difference]: Without dead ends: 1161 [2020-07-19 21:04:03,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:04:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-07-19 21:04:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1074. [2020-07-19 21:04:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1074 states. [2020-07-19 21:04:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1340 transitions. [2020-07-19 21:04:03,317 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1340 transitions. Word has length 61 [2020-07-19 21:04:03,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:03,317 INFO L479 AbstractCegarLoop]: Abstraction has 1074 states and 1340 transitions. [2020-07-19 21:04:03,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:04:03,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1340 transitions. [2020-07-19 21:04:03,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 21:04:03,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:03,323 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 21:04:03,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 21:04:03,324 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:03,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:03,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1347234794, now seen corresponding path program 1 times [2020-07-19 21:04:03,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:03,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223634359] [2020-07-19 21:04:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,710 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 21:04:03,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223634359] [2020-07-19 21:04:03,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301528719] [2020-07-19 21:04:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 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 [2020-07-19 21:04:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:04,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-19 21:04:04,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:04:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:04:04,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:04:04,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2020-07-19 21:04:04,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167042783] [2020-07-19 21:04:04,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 21:04:04,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:04,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 21:04:04,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:04:04,179 INFO L87 Difference]: Start difference. First operand 1074 states and 1340 transitions. Second operand 12 states. [2020-07-19 21:04:04,852 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-19 21:04:05,453 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:07,756 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:08,125 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:11,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:11,267 INFO L93 Difference]: Finished difference Result 2802 states and 3781 transitions. [2020-07-19 21:04:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-19 21:04:11,268 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2020-07-19 21:04:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:11,281 INFO L225 Difference]: With dead ends: 2802 [2020-07-19 21:04:11,281 INFO L226 Difference]: Without dead ends: 2029 [2020-07-19 21:04:11,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2020-07-19 21:04:11,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2020-07-19 21:04:11,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 1871. [2020-07-19 21:04:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1871 states. [2020-07-19 21:04:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2367 transitions. [2020-07-19 21:04:11,683 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2367 transitions. Word has length 88 [2020-07-19 21:04:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:11,683 INFO L479 AbstractCegarLoop]: Abstraction has 1871 states and 2367 transitions. [2020-07-19 21:04:11,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 21:04:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2367 transitions. [2020-07-19 21:04:11,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-19 21:04:11,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:11,689 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 21:04:11,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-19 21:04:11,905 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:11,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:11,905 INFO L82 PathProgramCache]: Analyzing trace with hash 321074684, now seen corresponding path program 1 times [2020-07-19 21:04:11,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:11,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564264292] [2020-07-19 21:04:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,183 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 21:04:12,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564264292] [2020-07-19 21:04:12,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059041194] [2020-07-19 21:04:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:12,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 21:04:12,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:04:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-19 21:04:12,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:04:12,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2020-07-19 21:04:12,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57750838] [2020-07-19 21:04:12,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:04:12,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:12,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:04:12,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:04:12,887 INFO L87 Difference]: Start difference. First operand 1871 states and 2367 transitions. Second operand 6 states. [2020-07-19 21:04:13,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:13,353 INFO L93 Difference]: Finished difference Result 1914 states and 2421 transitions. [2020-07-19 21:04:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 21:04:13,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-19 21:04:13,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:13,365 INFO L225 Difference]: With dead ends: 1914 [2020-07-19 21:04:13,365 INFO L226 Difference]: Without dead ends: 1911 [2020-07-19 21:04:13,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-19 21:04:13,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2020-07-19 21:04:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1871. [2020-07-19 21:04:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1871 states. [2020-07-19 21:04:13,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2355 transitions. [2020-07-19 21:04:13,723 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2355 transitions. Word has length 143 [2020-07-19 21:04:13,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:13,724 INFO L479 AbstractCegarLoop]: Abstraction has 1871 states and 2355 transitions. [2020-07-19 21:04:13,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:04:13,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2355 transitions. [2020-07-19 21:04:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-19 21:04:13,729 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:13,729 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 21:04:13,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:13,944 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:13,944 INFO L82 PathProgramCache]: Analyzing trace with hash 451157407, now seen corresponding path program 1 times [2020-07-19 21:04:13,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:13,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770362517] [2020-07-19 21:04:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,209 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-19 21:04:14,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770362517] [2020-07-19 21:04:14,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756646998] [2020-07-19 21:04:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:14,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 21:04:14,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:04:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 21:04:14,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:04:14,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-19 21:04:14,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094973348] [2020-07-19 21:04:14,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:04:14,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:14,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:04:14,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:04:14,651 INFO L87 Difference]: Start difference. First operand 1871 states and 2355 transitions. Second operand 6 states. [2020-07-19 21:04:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:15,044 INFO L93 Difference]: Finished difference Result 3774 states and 4996 transitions. [2020-07-19 21:04:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:04:15,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2020-07-19 21:04:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:15,057 INFO L225 Difference]: With dead ends: 3774 [2020-07-19 21:04:15,057 INFO L226 Difference]: Without dead ends: 1927 [2020-07-19 21:04:15,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:04:15,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2020-07-19 21:04:15,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1911. [2020-07-19 21:04:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2020-07-19 21:04:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2403 transitions. [2020-07-19 21:04:15,447 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2403 transitions. Word has length 147 [2020-07-19 21:04:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:15,447 INFO L479 AbstractCegarLoop]: Abstraction has 1911 states and 2403 transitions. [2020-07-19 21:04:15,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:04:15,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2403 transitions. [2020-07-19 21:04:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-19 21:04:15,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:15,453 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 21:04:15,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:15,661 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:15,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:15,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1455245859, now seen corresponding path program 1 times [2020-07-19 21:04:15,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:15,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540086227] [2020-07-19 21:04:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:15,960 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-19 21:04:16,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540086227] [2020-07-19 21:04:16,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372469581] [2020-07-19 21:04:16,167 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:16,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 21:04:16,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:04:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 21:04:16,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:04:16,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2020-07-19 21:04:16,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570939598] [2020-07-19 21:04:16,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:04:16,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:16,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:04:16,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:04:16,413 INFO L87 Difference]: Start difference. First operand 1911 states and 2403 transitions. Second operand 5 states. [2020-07-19 21:04:16,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:16,718 INFO L93 Difference]: Finished difference Result 3420 states and 4400 transitions. [2020-07-19 21:04:16,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:04:16,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-19 21:04:16,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:16,726 INFO L225 Difference]: With dead ends: 3420 [2020-07-19 21:04:16,727 INFO L226 Difference]: Without dead ends: 1533 [2020-07-19 21:04:16,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:04:16,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-07-19 21:04:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2020-07-19 21:04:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1533 states. [2020-07-19 21:04:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1901 transitions. [2020-07-19 21:04:17,066 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1901 transitions. Word has length 147 [2020-07-19 21:04:17,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:17,066 INFO L479 AbstractCegarLoop]: Abstraction has 1533 states and 1901 transitions. [2020-07-19 21:04:17,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:04:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1901 transitions. [2020-07-19 21:04:17,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-19 21:04:17,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:17,072 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 21:04:17,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:17,286 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:17,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:17,286 INFO L82 PathProgramCache]: Analyzing trace with hash 154971906, now seen corresponding path program 1 times [2020-07-19 21:04:17,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:17,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909416608] [2020-07-19 21:04:17,287 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,614 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-19 21:04:17,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909416608] [2020-07-19 21:04:17,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142165132] [2020-07-19 21:04:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:18,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 21:04:18,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:04:18,113 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:04:18,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:04:18,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-19 21:04:18,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304932286] [2020-07-19 21:04:18,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 21:04:18,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:18,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 21:04:18,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:04:18,116 INFO L87 Difference]: Start difference. First operand 1533 states and 1901 transitions. Second operand 14 states. [2020-07-19 21:04:18,632 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:19,330 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:20,078 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-19 21:04:20,363 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:04:20,630 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:04:21,095 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-19 21:04:21,436 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 21:04:21,713 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 21:04:23,661 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:24,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:24,664 INFO L93 Difference]: Finished difference Result 3150 states and 4180 transitions. [2020-07-19 21:04:24,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-19 21:04:24,664 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2020-07-19 21:04:24,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:24,675 INFO L225 Difference]: With dead ends: 3150 [2020-07-19 21:04:24,675 INFO L226 Difference]: Without dead ends: 1796 [2020-07-19 21:04:24,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 206 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=335, Invalid=855, Unknown=0, NotChecked=0, Total=1190 [2020-07-19 21:04:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2020-07-19 21:04:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1401. [2020-07-19 21:04:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1401 states. [2020-07-19 21:04:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1732 transitions. [2020-07-19 21:04:24,936 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1732 transitions. Word has length 151 [2020-07-19 21:04:24,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:24,937 INFO L479 AbstractCegarLoop]: Abstraction has 1401 states and 1732 transitions. [2020-07-19 21:04:24,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 21:04:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1732 transitions. [2020-07-19 21:04:24,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-19 21:04:24,942 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:24,942 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:04:25,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 21:04:25,159 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:25,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:25,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1326265885, now seen corresponding path program 2 times [2020-07-19 21:04:25,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:25,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266919042] [2020-07-19 21:04:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,515 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 25 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-19 21:04:25,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266919042] [2020-07-19 21:04:25,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450169413] [2020-07-19 21:04:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:26,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-19 21:04:26,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:04:26,348 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-19 21:04:26,349 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 21:04:26,445 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-19 21:04:26,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:04:26,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 18 [2020-07-19 21:04:26,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014551724] [2020-07-19 21:04:26,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-19 21:04:26,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:26,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-19 21:04:26,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2020-07-19 21:04:26,453 INFO L87 Difference]: Start difference. First operand 1401 states and 1732 transitions. Second operand 18 states. [2020-07-19 21:04:27,891 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:28,183 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:04:30,256 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-19 21:04:30,604 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-19 21:04:30,858 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-19 21:04:31,321 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 189 [2020-07-19 21:04:31,802 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 186 [2020-07-19 21:04:33,724 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 189 [2020-07-19 21:04:33,994 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-19 21:04:34,509 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 189 [2020-07-19 21:04:34,795 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-19 21:04:35,098 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-07-19 21:04:36,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:36,103 INFO L93 Difference]: Finished difference Result 4120 states and 5642 transitions. [2020-07-19 21:04:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-07-19 21:04:36,104 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 204 [2020-07-19 21:04:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:36,121 INFO L225 Difference]: With dead ends: 4120 [2020-07-19 21:04:36,121 INFO L226 Difference]: Without dead ends: 2894 [2020-07-19 21:04:36,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 278 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=454, Invalid=1526, Unknown=0, NotChecked=0, Total=1980 [2020-07-19 21:04:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2020-07-19 21:04:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2216. [2020-07-19 21:04:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-07-19 21:04:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 2724 transitions. [2020-07-19 21:04:36,712 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 2724 transitions. Word has length 204 [2020-07-19 21:04:36,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:36,713 INFO L479 AbstractCegarLoop]: Abstraction has 2216 states and 2724 transitions. [2020-07-19 21:04:36,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-19 21:04:36,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 2724 transitions. [2020-07-19 21:04:36,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-19 21:04:36,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:04:36,725 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:04:36,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:36,940 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:04:36,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:04:36,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1092218593, now seen corresponding path program 1 times [2020-07-19 21:04:36,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:04:36,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282070168] [2020-07-19 21:04:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 [2020-07-19 21:04:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,234 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-07-19 21:04:37,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282070168] [2020-07-19 21:04:37,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254461436] [2020-07-19 21:04:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b471065 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:04:37,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 21:04:37,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:04:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-19 21:04:37,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:04:37,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 13 [2020-07-19 21:04:37,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685498833] [2020-07-19 21:04:37,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:04:37,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:04:37,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:04:37,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:04:37,749 INFO L87 Difference]: Start difference. First operand 2216 states and 2724 transitions. Second operand 6 states. [2020-07-19 21:04:37,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:04:37,971 INFO L93 Difference]: Finished difference Result 3020 states and 3675 transitions. [2020-07-19 21:04:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:04:37,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2020-07-19 21:04:37,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:04:37,973 INFO L225 Difference]: With dead ends: 3020 [2020-07-19 21:04:37,973 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 21:04:37,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:04:37,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 21:04:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 21:04:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 21:04:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 21:04:37,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2020-07-19 21:04:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:04:37,984 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 21:04:37,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:04:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 21:04:37,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 21:04:38,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:04:38,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 21:04:40,722 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 271 [2020-07-19 21:04:43,564 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 242 [2020-07-19 21:04:45,059 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 273 [2020-07-19 21:04:45,332 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 265 [2020-07-19 21:04:46,786 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 264 [2020-07-19 21:04:47,423 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-07-19 21:04:47,900 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 11 [2020-07-19 21:04:48,023 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 1 [2020-07-19 21:04:48,296 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 11 [2020-07-19 21:04:48,626 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 13 [2020-07-19 21:04:49,059 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 21 [2020-07-19 21:04:49,442 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 22 [2020-07-19 21:04:49,604 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 1 [2020-07-19 21:04:49,858 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 25 [2020-07-19 21:04:50,009 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 1 [2020-07-19 21:04:50,221 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 1 [2020-07-19 21:04:51,380 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 194 DAG size of output: 26 [2020-07-19 21:04:51,543 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-07-19 21:04:52,034 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 24 [2020-07-19 21:04:52,442 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 24 [2020-07-19 21:04:52,814 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 15 [2020-07-19 21:04:53,017 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:04:53,171 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 1 [2020-07-19 21:04:53,868 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 24 [2020-07-19 21:04:54,367 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 18 [2020-07-19 21:04:55,095 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 20 [2020-07-19 21:04:55,594 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 13 [2020-07-19 21:04:55,917 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 26 [2020-07-19 21:04:56,075 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 1 [2020-07-19 21:04:56,901 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 19 [2020-07-19 21:04:57,129 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 8 [2020-07-19 21:04:57,285 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 1 [2020-07-19 21:04:57,443 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-07-19 21:04:57,752 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 13 [2020-07-19 21:04:58,144 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 25 [2020-07-19 21:04:58,504 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 10 [2020-07-19 21:04:58,733 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 25 [2020-07-19 21:04:59,116 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 22 [2020-07-19 21:04:59,498 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 22 [2020-07-19 21:04:59,804 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 13 [2020-07-19 21:04:59,961 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 1 [2020-07-19 21:05:00,342 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 22 [2020-07-19 21:05:01,600 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 174 DAG size of output: 22 [2020-07-19 21:05:02,611 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 202 DAG size of output: 28 [2020-07-19 21:05:03,148 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 16 [2020-07-19 21:05:03,483 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 13 [2020-07-19 21:05:03,618 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 1 [2020-07-19 21:05:04,010 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 22 [2020-07-19 21:05:04,236 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 25 [2020-07-19 21:05:04,410 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 1 [2020-07-19 21:05:04,719 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 22 [2020-07-19 21:05:05,199 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 13 [2020-07-19 21:05:05,588 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 22 [2020-07-19 21:05:05,999 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 13 [2020-07-19 21:05:06,297 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 11 [2020-07-19 21:05:06,724 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-07-19 21:05:07,233 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 24 [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point L703(line 703) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point L702-2(lines 702 723) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point L724(lines 701 725) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 677 732) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 677 732) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point L708(lines 708 712) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point L708-1(lines 708 712) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 677 732) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point L765(lines 765 769) no Hoare annotation was computed. [2020-07-19 21:05:07,239 INFO L268 CegarLoopResult]: For program point L765-1(lines 765 769) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point L760(line 760) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 733 792) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point L759-2(lines 759 784) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point L785(lines 758 786) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 733 792) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point L778(line 778) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 733 792) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point L778-1(line 778) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2020-07-19 21:05:07,240 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2020-07-19 21:05:07,241 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2020-07-19 21:05:07,241 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2020-07-19 21:05:07,241 INFO L264 CegarLoopResult]: At program point L95(line 95) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) (or (= 0 ~systemActive~0) (not (<= 2 ~waterLevel~0)))) [2020-07-19 21:05:07,241 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 81 105) the Hoare annotation is: true [2020-07-19 21:05:07,241 INFO L268 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-07-19 21:05:07,241 INFO L264 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) (or (= 0 ~systemActive~0) (not (<= 2 ~waterLevel~0)))) [2020-07-19 21:05:07,241 INFO L268 CegarLoopResult]: For program point L91-1(line 91) no Hoare annotation was computed. [2020-07-19 21:05:07,242 INFO L268 CegarLoopResult]: For program point L89(lines 89 102) no Hoare annotation was computed. [2020-07-19 21:05:07,242 INFO L268 CegarLoopResult]: For program point L89-1(lines 81 105) no Hoare annotation was computed. [2020-07-19 21:05:07,242 INFO L271 CegarLoopResult]: At program point L87(line 87) the Hoare annotation is: true [2020-07-19 21:05:07,242 INFO L268 CegarLoopResult]: For program point L87-1(line 87) no Hoare annotation was computed. [2020-07-19 21:05:07,242 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 81 105) no Hoare annotation was computed. [2020-07-19 21:05:07,242 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 489 511) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-19 21:05:07,242 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 489 511) no Hoare annotation was computed. [2020-07-19 21:05:07,243 INFO L264 CegarLoopResult]: At program point L501(line 501) the Hoare annotation is: (or (and (= main_~tmp~7 ~waterLevel~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= main_~tmp~7 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|))) [2020-07-19 21:05:07,243 INFO L264 CegarLoopResult]: At program point L501-1(line 501) the Hoare annotation is: (or (and (= main_~tmp~7 ~waterLevel~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= main_~tmp~7 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|))) [2020-07-19 21:05:07,243 INFO L268 CegarLoopResult]: For program point L499(lines 499 506) no Hoare annotation was computed. [2020-07-19 21:05:07,243 INFO L268 CegarLoopResult]: For program point L499-1(lines 499 506) no Hoare annotation was computed. [2020-07-19 21:05:07,243 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-19 21:05:07,243 INFO L264 CegarLoopResult]: At program point L496(line 496) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-19 21:05:07,243 INFO L264 CegarLoopResult]: At program point L495(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-19 21:05:07,244 INFO L264 CegarLoopResult]: At program point L495-1(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-19 21:05:07,244 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 489 511) no Hoare annotation was computed. [2020-07-19 21:05:07,244 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 448 471) no Hoare annotation was computed. [2020-07-19 21:05:07,244 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 448 471) no Hoare annotation was computed. [2020-07-19 21:05:07,244 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 448 471) no Hoare annotation was computed. [2020-07-19 21:05:07,244 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-19 21:05:07,244 INFO L268 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-07-19 21:05:07,244 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-19 21:05:07,245 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-19 21:05:07,246 INFO L268 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-07-19 21:05:07,246 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 401 415) no Hoare annotation was computed. [2020-07-19 21:05:07,246 INFO L264 CegarLoopResult]: At program point L407(line 407) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (and (= |old(~systemActive~0)| ~systemActive~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (= 0 |old(~systemActive~0)|) (not (<= 2 ~waterLevel~0)))) [2020-07-19 21:05:07,246 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 401 415) the Hoare annotation is: (let ((.cse0 (= |old(~systemActive~0)| ~systemActive~0))) (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0))) (or (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (= 0 |old(~systemActive~0)|) (not (<= 2 ~waterLevel~0))))) [2020-07-19 21:05:07,246 INFO L268 CegarLoopResult]: For program point L405(lines 405 411) no Hoare annotation was computed. [2020-07-19 21:05:07,246 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 401 415) no Hoare annotation was computed. [2020-07-19 21:05:07,246 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 318 326) no Hoare annotation was computed. [2020-07-19 21:05:07,246 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 318 326) the Hoare annotation is: true [2020-07-19 21:05:07,247 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 318 326) no Hoare annotation was computed. [2020-07-19 21:05:07,247 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 382 400) the Hoare annotation is: true [2020-07-19 21:05:07,247 INFO L268 CegarLoopResult]: For program point L391(lines 391 395) no Hoare annotation was computed. [2020-07-19 21:05:07,247 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 382 400) no Hoare annotation was computed. [2020-07-19 21:05:07,247 INFO L271 CegarLoopResult]: At program point L389(line 389) the Hoare annotation is: true [2020-07-19 21:05:07,247 INFO L268 CegarLoopResult]: For program point L391-2(lines 391 395) no Hoare annotation was computed. [2020-07-19 21:05:07,247 INFO L268 CegarLoopResult]: For program point L389-1(line 389) no Hoare annotation was computed. [2020-07-19 21:05:07,247 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 382 400) no Hoare annotation was computed. [2020-07-19 21:05:07,247 INFO L268 CegarLoopResult]: For program point L346(lines 346 354) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point L346-2(lines 346 354) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 327 362) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point L334(lines 334 342) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point L334-2(lines 334 342) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 327 362) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point L357(line 357) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point L357-1(line 357) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 327 362) no Hoare annotation was computed. [2020-07-19 21:05:07,248 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 631 676) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 631 676) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 631 676) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point L958(lines 958 978) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point L958-1(lines 958 978) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 944 989) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 944 989) no Hoare annotation was computed. [2020-07-19 21:05:07,249 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 944 989) no Hoare annotation was computed. [2020-07-19 21:05:07,250 INFO L268 CegarLoopResult]: For program point L964(lines 964 971) no Hoare annotation was computed. [2020-07-19 21:05:07,250 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 479 488) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-19 21:05:07,250 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 479 488) no Hoare annotation was computed. [2020-07-19 21:05:07,250 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 479 488) no Hoare annotation was computed. [2020-07-19 21:05:07,250 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 307 317) the Hoare annotation is: true [2020-07-19 21:05:07,250 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 307 317) no Hoare annotation was computed. [2020-07-19 21:05:07,250 INFO L271 CegarLoopResult]: At program point L312(line 312) the Hoare annotation is: true [2020-07-19 21:05:07,250 INFO L268 CegarLoopResult]: For program point L312-1(line 312) no Hoare annotation was computed. [2020-07-19 21:05:07,250 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 307 317) no Hoare annotation was computed. [2020-07-19 21:05:07,251 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 299 306) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2020-07-19 21:05:07,251 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 299 306) no Hoare annotation was computed. [2020-07-19 21:05:07,251 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 299 306) no Hoare annotation was computed. [2020-07-19 21:05:07,251 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 592 605) no Hoare annotation was computed. [2020-07-19 21:05:07,251 INFO L268 CegarLoopResult]: For program point L596(lines 596 602) no Hoare annotation was computed. [2020-07-19 21:05:07,251 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 592 605) the Hoare annotation is: true [2020-07-19 21:05:07,251 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 592 605) no Hoare annotation was computed. [2020-07-19 21:05:07,251 INFO L268 CegarLoopResult]: For program point L256(lines 256 264) no Hoare annotation was computed. [2020-07-19 21:05:07,252 INFO L264 CegarLoopResult]: At program point L254(line 254) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2020-07-19 21:05:07,252 INFO L268 CegarLoopResult]: For program point L254-1(line 254) no Hoare annotation was computed. [2020-07-19 21:05:07,252 INFO L268 CegarLoopResult]: For program point L252(lines 252 269) no Hoare annotation was computed. [2020-07-19 21:05:07,252 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 248 272) no Hoare annotation was computed. [2020-07-19 21:05:07,252 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 248 272) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2020-07-19 21:05:07,252 INFO L264 CegarLoopResult]: At program point L267(line 267) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~pumpRunning~0)) (= 0 ~systemActive~0)) [2020-07-19 21:05:07,252 INFO L268 CegarLoopResult]: For program point L267-1(lines 248 272) no Hoare annotation was computed. [2020-07-19 21:05:07,252 INFO L264 CegarLoopResult]: At program point L262(line 262) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2020-07-19 21:05:07,253 INFO L264 CegarLoopResult]: At program point L258(line 258) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~3))))) [2020-07-19 21:05:07,253 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 214 220) no Hoare annotation was computed. [2020-07-19 21:05:07,253 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 214 220) the Hoare annotation is: true [2020-07-19 21:05:07,253 INFO L264 CegarLoopResult]: At program point testENTRY(lines 112 177) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-19 21:05:07,253 INFO L268 CegarLoopResult]: For program point L124(lines 124 128) no Hoare annotation was computed. [2020-07-19 21:05:07,253 INFO L268 CegarLoopResult]: For program point testFINAL(lines 112 177) no Hoare annotation was computed. [2020-07-19 21:05:07,253 INFO L264 CegarLoopResult]: At program point L170(lines 121 171) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|))) [2020-07-19 21:05:07,254 INFO L264 CegarLoopResult]: At program point L160(line 160) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (= 0 ~pumpRunning~0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (and .cse0 .cse1 .cse2) (and .cse1 .cse2 (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-19 21:05:07,254 INFO L268 CegarLoopResult]: For program point L158(lines 158 164) no Hoare annotation was computed. [2020-07-19 21:05:07,254 INFO L264 CegarLoopResult]: At program point L158-1(lines 152 165) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and .cse0 (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-19 21:05:07,254 INFO L268 CegarLoopResult]: For program point L123(lines 122 169) no Hoare annotation was computed. [2020-07-19 21:05:07,254 INFO L268 CegarLoopResult]: For program point L152(lines 152 165) no Hoare annotation was computed. [2020-07-19 21:05:07,254 INFO L264 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and .cse0 (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (<= 2 ~waterLevel~0) (not (= 0 ~systemActive~0))) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-19 21:05:07,254 INFO L268 CegarLoopResult]: For program point L142(lines 142 148) no Hoare annotation was computed. [2020-07-19 21:05:07,254 INFO L268 CegarLoopResult]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2020-07-19 21:05:07,255 INFO L264 CegarLoopResult]: At program point L167(lines 122 169) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (and .cse0 (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-19 21:05:07,255 INFO L264 CegarLoopResult]: At program point L134(line 134) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (and .cse0 (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-19 21:05:07,255 INFO L268 CegarLoopResult]: For program point L132(lines 132 138) no Hoare annotation was computed. [2020-07-19 21:05:07,255 INFO L268 CegarLoopResult]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2020-07-19 21:05:07,255 INFO L268 CegarLoopResult]: For program point testEXIT(lines 112 177) no Hoare annotation was computed. [2020-07-19 21:05:07,255 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 898 943) no Hoare annotation was computed. [2020-07-19 21:05:07,255 INFO L268 CegarLoopResult]: For program point L918(lines 918 925) no Hoare annotation was computed. [2020-07-19 21:05:07,255 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 898 943) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 898 943) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point L912(lines 912 932) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point L912-1(lines 912 932) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 273 280) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 273 280) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 273 280) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 606 614) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 606 614) the Hoare annotation is: true [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 606 614) no Hoare annotation was computed. [2020-07-19 21:05:07,256 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 560 582) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point L568(lines 568 576) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point L568-2(lines 568 576) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 560 582) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 560 582) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point L865(lines 843 866) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 795 897) no Hoare annotation was computed. [2020-07-19 21:05:07,257 INFO L268 CegarLoopResult]: For program point L824(lines 824 840) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L884(lines 884 891) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L845(lines 844 864) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L876(line 876) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L876-1(line 876) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L841(lines 841 882) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 795 897) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L860(line 860) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L860-1(line 860) no Hoare annotation was computed. [2020-07-19 21:05:07,258 INFO L268 CegarLoopResult]: For program point L819(lines 819 823) no Hoare annotation was computed. [2020-07-19 21:05:07,259 INFO L268 CegarLoopResult]: For program point L883(lines 883 894) no Hoare annotation was computed. [2020-07-19 21:05:07,259 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 795 897) no Hoare annotation was computed. [2020-07-19 21:05:07,259 INFO L268 CegarLoopResult]: For program point L846(lines 846 850) no Hoare annotation was computed. [2020-07-19 21:05:07,259 INFO L268 CegarLoopResult]: For program point L844-2(lines 844 864) no Hoare annotation was computed. [2020-07-19 21:05:07,259 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:05:07,259 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string59.offset| |old(#t~string59.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |#t~string72.offset| |old(#t~string72.offset)|) (= |#t~string68.offset| |old(#t~string68.offset)|) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |#t~string39.offset| |old(#t~string39.offset)|) (= |#t~string71.base| |old(#t~string71.base)|) (= |#t~string35.offset| |old(#t~string35.offset)|) (= |#t~string39.base| |old(#t~string39.base)|) (= |#t~string72.base| |old(#t~string72.base)|) (= |#t~string70.offset| |old(#t~string70.offset)|) (= |#t~string12.offset| |old(#t~string12.offset)|) (= ~head~0.offset |old(~head~0.offset)|) (= |#t~string33.base| |old(#t~string33.base)|) (= |#t~string24.base| |old(#t~string24.base)|) (= |#t~string58.offset| |old(#t~string58.offset)|) (= |#t~string18.offset| |old(#t~string18.offset)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string35.base| |old(#t~string35.base)|) (= |#t~string61.offset| |old(#t~string61.offset)|) (= |#t~string67.offset| |old(#t~string67.offset)|) (= |#t~string60.base| |old(#t~string60.base)|) (= |#t~string12.base| |old(#t~string12.base)|) (= |#t~string62.offset| |old(#t~string62.offset)|) (= |#t~string31.base| |old(#t~string31.base)|) (= |#t~string14.base| |old(#t~string14.base)|) (= |#t~string22.base| |old(#t~string22.base)|) (= |#t~string61.base| |old(#t~string61.base)|) (= |#t~string14.offset| |old(#t~string14.offset)|) (= |#t~string33.offset| |old(#t~string33.offset)|) (= |#t~string59.base| |old(#t~string59.base)|) (= ~systemActive~0 |old(~systemActive~0)|) (= |#t~string70.base| |old(#t~string70.base)|) (= |#t~string60.offset| |old(#t~string60.offset)|) (= |#t~string58.base| |old(#t~string58.base)|) (= |#t~string22.offset| |old(#t~string22.offset)|) (= |#t~string69.offset| |old(#t~string69.offset)|) (= |#t~string20.offset| |old(#t~string20.offset)|) (= |#t~string37.offset| |old(#t~string37.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string16.offset| |old(#t~string16.offset)|) (= |#t~string37.base| |old(#t~string37.base)|) (= |#t~string18.base| |old(#t~string18.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|) (= |#t~string62.base| |old(#t~string62.base)|) (= |#t~string63.base| |old(#t~string63.base)|) (= |#t~string20.base| |old(#t~string20.base)|) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (= |#t~string24.offset| |old(#t~string24.offset)|) (= |#t~string67.base| |old(#t~string67.base)|) (= |#t~string71.offset| |old(#t~string71.offset)|) (= |#t~string63.offset| |old(#t~string63.offset)|) (= |#t~string26.base| |old(#t~string26.base)|) (= |#t~string26.offset| |old(#t~string26.offset)|) (= |#valid| |old(#valid)|) (= |#t~string68.base| |old(#t~string68.base)|) (= |#t~string16.base| |old(#t~string16.base)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string31.offset| |old(#t~string31.offset)|) (= |#t~string69.base| |old(#t~string69.base)|)) [2020-07-19 21:05:07,259 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:05:07,260 INFO L268 CegarLoopResult]: For program point L289(lines 289 295) no Hoare annotation was computed. [2020-07-19 21:05:07,260 INFO L264 CegarLoopResult]: At program point L287(line 287) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-19 21:05:07,260 INFO L268 CegarLoopResult]: For program point L287-1(line 287) no Hoare annotation was computed. [2020-07-19 21:05:07,260 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 282 298) no Hoare annotation was computed. [2020-07-19 21:05:07,260 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 282 298) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-19 21:05:07,260 INFO L264 CegarLoopResult]: At program point L293(line 293) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-19 21:05:07,260 INFO L268 CegarLoopResult]: For program point L293-1(lines 282 298) no Hoare annotation was computed. [2020-07-19 21:05:07,260 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 583 591) the Hoare annotation is: true [2020-07-19 21:05:07,260 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 583 591) no Hoare annotation was computed. [2020-07-19 21:05:07,261 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 583 591) no Hoare annotation was computed. [2020-07-19 21:05:07,261 INFO L268 CegarLoopResult]: For program point L370-1(line 370) no Hoare annotation was computed. [2020-07-19 21:05:07,261 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 363 381) no Hoare annotation was computed. [2020-07-19 21:05:07,261 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 363 381) the Hoare annotation is: true [2020-07-19 21:05:07,261 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 363 381) no Hoare annotation was computed. [2020-07-19 21:05:07,261 INFO L268 CegarLoopResult]: For program point L372(lines 372 376) no Hoare annotation was computed. [2020-07-19 21:05:07,261 INFO L271 CegarLoopResult]: At program point L370(line 370) the Hoare annotation is: true [2020-07-19 21:05:07,261 INFO L268 CegarLoopResult]: For program point L372-2(lines 372 376) no Hoare annotation was computed. [2020-07-19 21:05:07,261 INFO L268 CegarLoopResult]: For program point L543-1(lines 539 550) no Hoare annotation was computed. [2020-07-19 21:05:07,262 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 539 550) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or .cse0 (= 0 ~systemActive~0) (not (<= 2 ~waterLevel~0))) (or (not (<= 1 ~waterLevel~0)) .cse0 (not (= 0 ~pumpRunning~0))))) [2020-07-19 21:05:07,262 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 539 550) no Hoare annotation was computed. [2020-07-19 21:05:07,262 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:05:07,262 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-19 21:05:07,262 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:05:07,262 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 190 213) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (= 0 ~systemActive~0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 2 |old(~waterLevel~0)|))) (or (and (= 0 ~pumpRunning~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-19 21:05:07,262 INFO L264 CegarLoopResult]: At program point L203(line 203) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (and (not .cse0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))))) [2020-07-19 21:05:07,262 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 190 213) no Hoare annotation was computed. [2020-07-19 21:05:07,263 INFO L264 CegarLoopResult]: At program point L201(lines 201 207) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse3 (= 0 ~pumpRunning~0))) (and (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 (not .cse1) .cse2) (and .cse3 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)))) (let ((.cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse1 (and .cse0 .cse4) (and .cse4 .cse3) (not (<= 2 |old(~waterLevel~0)|)))))) [2020-07-19 21:05:07,263 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 190 213) no Hoare annotation was computed. [2020-07-19 21:05:07,263 INFO L264 CegarLoopResult]: At program point L196(line 196) the Hoare annotation is: (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|)))) [2020-07-19 21:05:07,263 INFO L268 CegarLoopResult]: For program point L194(lines 193 212) no Hoare annotation was computed. [2020-07-19 21:05:07,263 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2020-07-19 21:05:07,263 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2020-07-19 21:05:07,263 INFO L271 CegarLoopResult]: At program point L443(lines 418 447) the Hoare annotation is: true [2020-07-19 21:05:07,263 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-19 21:05:07,264 INFO L268 CegarLoopResult]: For program point L432(lines 432 436) no Hoare annotation was computed. [2020-07-19 21:05:07,264 INFO L271 CegarLoopResult]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2020-07-19 21:05:07,264 INFO L268 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-07-19 21:05:07,264 INFO L271 CegarLoopResult]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2020-07-19 21:05:07,264 INFO L271 CegarLoopResult]: At program point L424(line 424) the Hoare annotation is: true [2020-07-19 21:05:07,264 INFO L268 CegarLoopResult]: For program point L424-1(line 424) no Hoare annotation was computed. [2020-07-19 21:05:07,264 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 551 559) the Hoare annotation is: true [2020-07-19 21:05:07,264 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 551 559) no Hoare annotation was computed. [2020-07-19 21:05:07,264 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 551 559) no Hoare annotation was computed. [2020-07-19 21:05:07,265 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 515 526) the Hoare annotation is: (or (= 0 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) [2020-07-19 21:05:07,265 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 515 526) no Hoare annotation was computed. [2020-07-19 21:05:07,265 INFO L268 CegarLoopResult]: For program point L519-1(lines 515 526) no Hoare annotation was computed. [2020-07-19 21:05:07,265 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 472 478) no Hoare annotation was computed. [2020-07-19 21:05:07,265 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 472 478) the Hoare annotation is: true [2020-07-19 21:05:07,265 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:05:07,265 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= 1 ~systemActive~0)) [2020-07-19 21:05:07,265 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 21:05:07,265 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:05:07,265 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 222 246) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0)) [2020-07-19 21:05:07,266 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 222 246) no Hoare annotation was computed. [2020-07-19 21:05:07,266 INFO L264 CegarLoopResult]: At program point L241(line 241) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0)) [2020-07-19 21:05:07,266 INFO L268 CegarLoopResult]: For program point L241-1(lines 222 246) no Hoare annotation was computed. [2020-07-19 21:05:07,266 INFO L264 CegarLoopResult]: At program point L236(line 236) the Hoare annotation is: (let ((.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= 0 ~pumpRunning~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (not (= 1 ~waterLevel~0)) .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2020-07-19 21:05:07,266 INFO L264 CegarLoopResult]: At program point L232(line 232) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0)) [2020-07-19 21:05:07,266 INFO L268 CegarLoopResult]: For program point L230(lines 230 238) no Hoare annotation was computed. [2020-07-19 21:05:07,266 INFO L264 CegarLoopResult]: At program point L228(line 228) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0)) [2020-07-19 21:05:07,267 INFO L268 CegarLoopResult]: For program point L228-1(line 228) no Hoare annotation was computed. [2020-07-19 21:05:07,267 INFO L268 CegarLoopResult]: For program point L226(lines 226 243) no Hoare annotation was computed. [2020-07-19 21:05:07,267 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 527 538) no Hoare annotation was computed. [2020-07-19 21:05:07,267 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 527 538) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2020-07-19 21:05:07,267 INFO L268 CegarLoopResult]: For program point L531-1(lines 527 538) no Hoare annotation was computed. [2020-07-19 21:05:07,267 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 616 623) no Hoare annotation was computed. [2020-07-19 21:05:07,267 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 620) no Hoare annotation was computed. [2020-07-19 21:05:07,267 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 616 623) the Hoare annotation is: true [2020-07-19 21:05:07,268 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 616 623) no Hoare annotation was computed. [2020-07-19 21:05:07,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:05:07 BoogieIcfgContainer [2020-07-19 21:05:07,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:05:07,286 INFO L168 Benchmark]: Toolchain (without parser) took 85454.69 ms. Allocated memory was 139.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 101.7 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-07-19 21:05:07,287 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 21:05:07,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.54 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.2 MB in the beginning and 173.6 MB in the end (delta: -72.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-07-19 21:05:07,288 INFO L168 Benchmark]: Boogie Preprocessor took 96.96 ms. Allocated memory is still 206.0 MB. Free memory was 173.6 MB in the beginning and 168.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-19 21:05:07,288 INFO L168 Benchmark]: RCFGBuilder took 1144.17 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 168.9 MB in the beginning and 192.8 MB in the end (delta: -23.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:05:07,289 INFO L168 Benchmark]: TraceAbstraction took 83503.07 ms. Allocated memory was 235.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 192.8 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-07-19 21:05:07,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.54 ms. Allocated memory was 139.5 MB in the beginning and 206.0 MB in the end (delta: 66.6 MB). Free memory was 101.2 MB in the beginning and 173.6 MB in the end (delta: -72.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.96 ms. Allocated memory is still 206.0 MB. Free memory was 173.6 MB in the beginning and 168.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1144.17 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 168.9 MB in the beginning and 192.8 MB in the end (delta: -23.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 83503.07 ms. Allocated memory was 235.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 192.8 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 620]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(1 == \old(systemActive))) || !(1 == \old(waterLevel)) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && 0 == splverifierCounter) && !(0 == systemActive)) || ((0 == splverifierCounter && 1 <= waterLevel) && 0 == pumpRunning)) || !(0 == \old(pumpRunning))) || !(1 == \old(systemActive))) || !(1 == \old(waterLevel)) - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 248 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 54.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 40.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 29.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2021 SDtfs, 4824 SDslu, 3499 SDs, 0 SdLazy, 9738 SolverSat, 3703 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1754 GetRequests, 1536 SyntacticMatches, 14 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2216occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 1598 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 67 LocationsWithAnnotation, 4809 PreInvPairs, 4957 NumberOfFragments, 1184 HoareAnnotationTreeSize, 4809 FomulaSimplifications, 1667668 FormulaSimplificationTreeSizeReduction, 9.3s HoareSimplificationTime, 67 FomulaSimplificationsInter, 96007 FormulaSimplificationTreeSizeReductionInter, 19.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 2430 NumberOfCodeBlocks, 2430 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2411 ConstructedInterpolants, 0 QuantifiedInterpolants, 817443 SizeOfPredicates, 19 NumberOfNonLiveVariables, 6279 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 612/698 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...