java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:18:06,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:18:06,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:18:06,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:18:06,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:18:06,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:18:06,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:18:06,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:18:06,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:18:06,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:18:06,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:18:06,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:18:06,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:18:06,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:18:06,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:18:06,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:18:06,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:18:06,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:18:06,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:18:06,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:18:06,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:18:06,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:18:06,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:18:06,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:18:06,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:18:06,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:18:06,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:18:06,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:18:06,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:18:06,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:18:06,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:18:06,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:18:06,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:18:06,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:18:06,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:18:06,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:18:06,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:18:06,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:18:06,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:18:06,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:18:06,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:18:06,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:18:06,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:18:06,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:18:06,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:18:06,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:18:06,542 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:18:06,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:18:06,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:18:06,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:18:06,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:18:06,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:18:06,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:18:06,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:18:06,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:18:06,544 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:18:06,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:18:06,545 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:18:06,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:18:06,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:18:06,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:18:06,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:18:06,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:18:06,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:06,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:18:06,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:18:06,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:18:06,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:18:06,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:18:06,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:18:06,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:18:06,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:18:06,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:18:06,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:18:06,885 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:18:06,885 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:18:06,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2019-10-13 23:18:06,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f74301f/51309275623e4e0e8ee47c58f8be4bad/FLAG2c8a3d652 [2019-10-13 23:18:07,485 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:18:07,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2019-10-13 23:18:07,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f74301f/51309275623e4e0e8ee47c58f8be4bad/FLAG2c8a3d652 [2019-10-13 23:18:07,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76f74301f/51309275623e4e0e8ee47c58f8be4bad [2019-10-13 23:18:07,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:18:07,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:18:07,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:07,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:18:07,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:18:07,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:07" (1/1) ... [2019-10-13 23:18:07,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225cf470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:07, skipping insertion in model container [2019-10-13 23:18:07,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:07" (1/1) ... [2019-10-13 23:18:07,882 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:18:07,943 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:18:08,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:08,439 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:18:08,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:08,589 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:18:08,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08 WrapperNode [2019-10-13 23:18:08,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:08,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:18:08,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:18:08,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:18:08,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:18:08,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:18:08,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:18:08,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:18:08,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:18:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:18:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:18:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:18:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:18:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:18:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:18:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:18:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:18:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:18:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:18:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:18:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:18:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:18:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:18:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:18:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:18:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:18:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:18:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:18:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:18:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:18:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:18:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:18:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:18:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:18:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:18:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:18:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:18:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:18:08,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:18:08,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:18:08,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:18:08,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:18:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:18:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:18:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:18:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:18:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:18:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:18:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:18:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:18:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:18:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:18:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:18:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:18:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:18:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:18:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:18:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:18:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:18:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:18:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:18:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:18:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:18:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:18:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:18:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:18:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:18:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:18:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:18:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:18:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:18:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:18:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:18:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:18:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:18:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:18:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:18:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:18:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:18:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:18:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:18:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:18:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:18:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:18:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:18:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:18:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:18:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:18:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:18:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:18:10,333 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:18:10,334 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:18:10,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:10 BoogieIcfgContainer [2019-10-13 23:18:10,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:18:10,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:18:10,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:18:10,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:18:10,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:18:07" (1/3) ... [2019-10-13 23:18:10,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12693b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:10, skipping insertion in model container [2019-10-13 23:18:10,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08" (2/3) ... [2019-10-13 23:18:10,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12693b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:10, skipping insertion in model container [2019-10-13 23:18:10,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:10" (3/3) ... [2019-10-13 23:18:10,345 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2019-10-13 23:18:10,355 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:18:10,364 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:18:10,375 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:18:10,411 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:18:10,411 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:18:10,411 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:18:10,411 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:18:10,412 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:18:10,412 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:18:10,412 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:18:10,412 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:18:10,441 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-10-13 23:18:10,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:18:10,456 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:10,457 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:10,460 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:10,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:10,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1682700886, now seen corresponding path program 1 times [2019-10-13 23:18:10,475 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:10,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124184684] [2019-10-13 23:18:10,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:10,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:10,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:10,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124184684] [2019-10-13 23:18:10,849 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:10,850 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:18:10,850 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912970095] [2019-10-13 23:18:10,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:18:10,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:10,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:18:10,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:10,872 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-10-13 23:18:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:10,910 INFO L93 Difference]: Finished difference Result 238 states and 291 transitions. [2019-10-13 23:18:10,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:18:10,912 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:18:10,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:10,924 INFO L225 Difference]: With dead ends: 238 [2019-10-13 23:18:10,925 INFO L226 Difference]: Without dead ends: 121 [2019-10-13 23:18:10,929 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:10,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-13 23:18:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-13 23:18:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-13 23:18:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2019-10-13 23:18:10,982 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 52 [2019-10-13 23:18:10,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:10,983 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2019-10-13 23:18:10,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:18:10,983 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2019-10-13 23:18:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:18:10,987 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:10,987 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:10,988 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:10,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:10,988 INFO L82 PathProgramCache]: Analyzing trace with hash -21681295, now seen corresponding path program 1 times [2019-10-13 23:18:10,989 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:10,989 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135778058] [2019-10-13 23:18:10,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:10,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:10,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:11,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:11,130 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135778058] [2019-10-13 23:18:11,130 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:11,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:18:11,130 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028579326] [2019-10-13 23:18:11,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:18:11,135 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:11,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:18:11,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:11,135 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 3 states. [2019-10-13 23:18:11,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:11,161 INFO L93 Difference]: Finished difference Result 189 states and 219 transitions. [2019-10-13 23:18:11,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:18:11,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:18:11,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:11,172 INFO L225 Difference]: With dead ends: 189 [2019-10-13 23:18:11,172 INFO L226 Difference]: Without dead ends: 113 [2019-10-13 23:18:11,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-13 23:18:11,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-13 23:18:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-13 23:18:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2019-10-13 23:18:11,191 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 53 [2019-10-13 23:18:11,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:11,192 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2019-10-13 23:18:11,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:18:11,192 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2019-10-13 23:18:11,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 23:18:11,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:11,195 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:11,195 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:11,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:11,196 INFO L82 PathProgramCache]: Analyzing trace with hash 257553692, now seen corresponding path program 1 times [2019-10-13 23:18:11,196 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:11,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281041569] [2019-10-13 23:18:11,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:11,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:11,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:11,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281041569] [2019-10-13 23:18:11,395 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:11,395 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:11,395 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998494714] [2019-10-13 23:18:11,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:11,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:11,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:11,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:11,399 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 7 states. [2019-10-13 23:18:11,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:11,877 INFO L93 Difference]: Finished difference Result 338 states and 404 transitions. [2019-10-13 23:18:11,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:18:11,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 23:18:11,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:11,883 INFO L225 Difference]: With dead ends: 338 [2019-10-13 23:18:11,883 INFO L226 Difference]: Without dead ends: 250 [2019-10-13 23:18:11,886 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:18:11,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-10-13 23:18:11,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 242. [2019-10-13 23:18:11,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-10-13 23:18:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 289 transitions. [2019-10-13 23:18:11,959 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 289 transitions. Word has length 56 [2019-10-13 23:18:11,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:11,960 INFO L462 AbstractCegarLoop]: Abstraction has 242 states and 289 transitions. [2019-10-13 23:18:11,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 289 transitions. [2019-10-13 23:18:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-13 23:18:11,967 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:11,968 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:11,968 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:11,970 INFO L82 PathProgramCache]: Analyzing trace with hash 824193073, now seen corresponding path program 1 times [2019-10-13 23:18:11,970 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:11,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052270702] [2019-10-13 23:18:11,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:11,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:11,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:18:12,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052270702] [2019-10-13 23:18:12,152 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:12,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:12,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631078957] [2019-10-13 23:18:12,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:12,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:12,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:12,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:12,154 INFO L87 Difference]: Start difference. First operand 242 states and 289 transitions. Second operand 7 states. [2019-10-13 23:18:12,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:12,795 INFO L93 Difference]: Finished difference Result 624 states and 814 transitions. [2019-10-13 23:18:12,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:18:12,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-10-13 23:18:12,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:12,803 INFO L225 Difference]: With dead ends: 624 [2019-10-13 23:18:12,803 INFO L226 Difference]: Without dead ends: 407 [2019-10-13 23:18:12,805 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:18:12,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-10-13 23:18:12,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 357. [2019-10-13 23:18:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-10-13 23:18:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 426 transitions. [2019-10-13 23:18:12,875 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 426 transitions. Word has length 61 [2019-10-13 23:18:12,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:12,876 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 426 transitions. [2019-10-13 23:18:12,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 426 transitions. [2019-10-13 23:18:12,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 23:18:12,879 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:12,880 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:12,880 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:12,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:12,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1521081775, now seen corresponding path program 1 times [2019-10-13 23:18:12,881 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:12,881 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531202524] [2019-10-13 23:18:12,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:12,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:12,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:13,150 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531202524] [2019-10-13 23:18:13,151 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:13,151 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:18:13,151 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293970717] [2019-10-13 23:18:13,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:18:13,152 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:13,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:18:13,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:18:13,153 INFO L87 Difference]: Start difference. First operand 357 states and 426 transitions. Second operand 12 states. [2019-10-13 23:18:14,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:14,094 INFO L93 Difference]: Finished difference Result 1089 states and 1322 transitions. [2019-10-13 23:18:14,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:18:14,094 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2019-10-13 23:18:14,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:14,099 INFO L225 Difference]: With dead ends: 1089 [2019-10-13 23:18:14,100 INFO L226 Difference]: Without dead ends: 757 [2019-10-13 23:18:14,101 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:18:14,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2019-10-13 23:18:14,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 735. [2019-10-13 23:18:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2019-10-13 23:18:14,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 881 transitions. [2019-10-13 23:18:14,155 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 881 transitions. Word has length 78 [2019-10-13 23:18:14,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:14,156 INFO L462 AbstractCegarLoop]: Abstraction has 735 states and 881 transitions. [2019-10-13 23:18:14,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:18:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 881 transitions. [2019-10-13 23:18:14,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-13 23:18:14,158 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:14,158 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:14,159 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:14,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:14,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1245017963, now seen corresponding path program 1 times [2019-10-13 23:18:14,159 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:14,159 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997245747] [2019-10-13 23:18:14,160 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,160 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:14,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997245747] [2019-10-13 23:18:14,291 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:14,291 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:18:14,291 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551302311] [2019-10-13 23:18:14,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:18:14,292 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:14,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:18:14,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:18:14,293 INFO L87 Difference]: Start difference. First operand 735 states and 881 transitions. Second operand 9 states. [2019-10-13 23:18:15,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:15,209 INFO L93 Difference]: Finished difference Result 2333 states and 2884 transitions. [2019-10-13 23:18:15,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:18:15,210 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2019-10-13 23:18:15,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:15,223 INFO L225 Difference]: With dead ends: 2333 [2019-10-13 23:18:15,223 INFO L226 Difference]: Without dead ends: 1782 [2019-10-13 23:18:15,226 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:18:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2019-10-13 23:18:15,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1508. [2019-10-13 23:18:15,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1508 states. [2019-10-13 23:18:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1824 transitions. [2019-10-13 23:18:15,334 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1824 transitions. Word has length 81 [2019-10-13 23:18:15,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:15,335 INFO L462 AbstractCegarLoop]: Abstraction has 1508 states and 1824 transitions. [2019-10-13 23:18:15,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:18:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1824 transitions. [2019-10-13 23:18:15,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:18:15,338 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:15,339 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:18:15,339 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:15,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:15,339 INFO L82 PathProgramCache]: Analyzing trace with hash -897616276, now seen corresponding path program 1 times [2019-10-13 23:18:15,340 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:15,340 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775904177] [2019-10-13 23:18:15,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:15,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:15,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:18:15,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775904177] [2019-10-13 23:18:15,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041217114] [2019-10-13 23:18:15,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:18:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:15,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:18:15,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:18:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 35 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:18:15,857 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:18:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 23:18:16,276 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1855488941] [2019-10-13 23:18:16,309 INFO L162 IcfgInterpreter]: Started Sifa with 87 locations of interest [2019-10-13 23:18:16,310 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:18:16,318 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:18:16,327 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:18:16,327 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:18:23,831 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:18:25,367 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:18:25,521 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:25,753 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:25,983 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:26,371 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:26,641 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:26,905 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:27,131 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:27,512 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:18:27,755 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:27,919 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:28,049 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:28,183 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:28,295 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:28,304 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:18:28,501 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:18:28,610 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:28,789 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:29,006 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:29,136 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:29,242 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:29,424 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:29,562 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:29,785 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:30,016 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:18:30,152 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:30,307 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:30,416 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:30,520 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:30,653 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:30,769 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:30,992 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:31,099 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:31,323 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:31,449 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:31,669 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:31,990 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:32,197 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:32,318 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:32,634 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:32,850 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:32,998 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:33,210 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:33,331 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:33,464 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:33,576 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:33,702 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:33,964 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:34,076 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,203 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,315 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,427 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,547 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,701 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:34,835 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:34,961 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:35,180 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:35,293 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:35,543 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:35,833 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:35,945 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:36,105 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:36,224 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:18:36,340 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:18:36,481 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:18:36,599 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:36,716 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:36,951 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:37,099 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:37,216 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:37,343 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:37,476 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:37,593 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:37,876 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:38,072 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:38,189 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:38,317 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:18:38,538 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:38,650 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:38,774 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,007 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:39,119 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,256 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,372 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,484 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,605 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,839 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:39,968 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,096 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,319 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:40,435 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,569 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,823 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:40,938 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,061 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,275 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 566 [2019-10-13 23:18:41,390 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:41,531 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,738 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 568 [2019-10-13 23:18:41,853 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,990 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:42,213 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:42,327 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:42,452 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:42,664 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:42,777 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:42,909 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,022 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,142 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,267 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,498 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:43,611 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,747 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,956 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:44,070 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,203 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,316 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,429 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,551 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,784 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:44,900 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,032 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,345 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:45,458 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:45,586 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,792 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:45,906 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:46,035 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,256 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-13 23:18:46,372 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,498 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,700 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-13 23:18:46,815 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:46,942 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:47,159 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:47,272 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,397 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,617 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:47,729 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,855 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,966 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,078 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,208 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,561 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566