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_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:18:11,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:18:11,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:18:11,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:18:11,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:18:11,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:18:11,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:18:11,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:18:11,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:18:11,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:18:11,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:18:11,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:18:11,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:18:11,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:18:11,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:18:11,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:18:11,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:18:11,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:18:11,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:18:11,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:18:11,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:18:11,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:18:11,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:18:11,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:18:11,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:18:11,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:18:11,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:18:11,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:18:11,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:18:11,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:18:11,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:18:11,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:18:11,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:18:11,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:18:11,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:18:11,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:18:11,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:18:11,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:18:11,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:18:11,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:18:11,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:18:11,562 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 23:18:11,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:18:11,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:18:11,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:18:11,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:18:11,578 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:18:11,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:18:11,579 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:18:11,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:18:11,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:18:11,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:18:11,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:18:11,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:18:11,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:18:11,580 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:18:11,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:18:11,580 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:18:11,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:18:11,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:18:11,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:18:11,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:18:11,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:18:11,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:11,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:18:11,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:18:11,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:18:11,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:18:11,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:18:11,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:18:11,583 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 23:18:11,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:18:11,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:18:11,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:18:11,877 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:18:11,878 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:18:11,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c [2019-10-13 23:18:11,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0ebf96e/4c0e5d1030e9437c9c9d98950dfaf627/FLAGe255855c7 [2019-10-13 23:18:12,532 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:18:12,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c [2019-10-13 23:18:12,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0ebf96e/4c0e5d1030e9437c9c9d98950dfaf627/FLAGe255855c7 [2019-10-13 23:18:12,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0ebf96e/4c0e5d1030e9437c9c9d98950dfaf627 [2019-10-13 23:18:12,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:18:12,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:18:12,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:12,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:18:12,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:18:12,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e62f75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12, skipping insertion in model container [2019-10-13 23:18:12,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,861 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:18:12,904 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:18:13,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:13,332 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:18:13,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:13,506 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:18:13,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13 WrapperNode [2019-10-13 23:18:13,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:13,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:18:13,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:18:13,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:18:13,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (1/1) ... [2019-10-13 23:18:13,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (1/1) ... [2019-10-13 23:18:13,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (1/1) ... [2019-10-13 23:18:13,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (1/1) ... [2019-10-13 23:18:13,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (1/1) ... [2019-10-13 23:18:13,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (1/1) ... [2019-10-13 23:18:13,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (1/1) ... [2019-10-13 23:18:13,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:18:13,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:18:13,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:18:13,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:18:13,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (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 23:18:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:18:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:18:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:18:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:18:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:18:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:18:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:18:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:18:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:18:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:18:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:18:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:18:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:18:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:18:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:18:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:18:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:18:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:18:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:18:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:18:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:18:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:18:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:18:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:18:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:18:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:18:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:18:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:18:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:18:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:18:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:18:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:18:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:18:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:18:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:18:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:18:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:18:15,875 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:18:15,876 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:18:15,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:15 BoogieIcfgContainer [2019-10-13 23:18:15,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:18:15,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:18:15,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:18:15,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:18:15,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:18:12" (1/3) ... [2019-10-13 23:18:15,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5111e0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:15, skipping insertion in model container [2019-10-13 23:18:15,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:13" (2/3) ... [2019-10-13 23:18:15,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5111e0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:15, skipping insertion in model container [2019-10-13 23:18:15,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:15" (3/3) ... [2019-10-13 23:18:15,888 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2019-10-13 23:18:15,898 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:18:15,908 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:18:15,920 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:18:15,962 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:18:15,962 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:18:15,962 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:18:15,962 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:18:15,963 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:18:15,963 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:18:15,964 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:18:15,964 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:18:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-10-13 23:18:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:18:16,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:16,013 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 23:18:16,015 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:16,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1523300376, now seen corresponding path program 1 times [2019-10-13 23:18:16,032 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:16,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493506153] [2019-10-13 23:18:16,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:16,444 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 23:18:16,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493506153] [2019-10-13 23:18:16,446 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:16,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:18:16,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826689750] [2019-10-13 23:18:16,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:18:16,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:16,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:18:16,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:16,469 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-10-13 23:18:16,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:16,510 INFO L93 Difference]: Finished difference Result 238 states and 285 transitions. [2019-10-13 23:18:16,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:18:16,512 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:18:16,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:16,525 INFO L225 Difference]: With dead ends: 238 [2019-10-13 23:18:16,526 INFO L226 Difference]: Without dead ends: 121 [2019-10-13 23:18:16,530 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 23:18:16,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-13 23:18:16,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-13 23:18:16,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-13 23:18:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-10-13 23:18:16,589 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 52 [2019-10-13 23:18:16,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:16,590 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-10-13 23:18:16,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:18:16,590 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-10-13 23:18:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:18:16,594 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:16,594 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 23:18:16,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:16,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:16,595 INFO L82 PathProgramCache]: Analyzing trace with hash 517446173, now seen corresponding path program 1 times [2019-10-13 23:18:16,596 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:16,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002865574] [2019-10-13 23:18:16,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:16,822 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 23:18:16,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002865574] [2019-10-13 23:18:16,823 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:16,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:18:16,824 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566216269] [2019-10-13 23:18:16,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:18:16,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:16,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:18:16,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:16,829 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 3 states. [2019-10-13 23:18:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:16,879 INFO L93 Difference]: Finished difference Result 184 states and 209 transitions. [2019-10-13 23:18:16,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:18:16,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:18:16,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:16,885 INFO L225 Difference]: With dead ends: 184 [2019-10-13 23:18:16,885 INFO L226 Difference]: Without dead ends: 113 [2019-10-13 23:18:16,888 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 23:18:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-13 23:18:16,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-13 23:18:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-13 23:18:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2019-10-13 23:18:16,918 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 53 [2019-10-13 23:18:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:16,918 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2019-10-13 23:18:16,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:18:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2019-10-13 23:18:16,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 23:18:16,928 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:16,928 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] [2019-10-13 23:18:16,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:16,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:16,932 INFO L82 PathProgramCache]: Analyzing trace with hash -289649399, now seen corresponding path program 1 times [2019-10-13 23:18:16,932 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:16,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091995486] [2019-10-13 23:18:16,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:17,115 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 23:18:17,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091995486] [2019-10-13 23:18:17,115 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:17,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:17,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442036018] [2019-10-13 23:18:17,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:17,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:17,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:17,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:17,117 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 7 states. [2019-10-13 23:18:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:17,703 INFO L93 Difference]: Finished difference Result 339 states and 398 transitions. [2019-10-13 23:18:17,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:18:17,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-13 23:18:17,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:17,707 INFO L225 Difference]: With dead ends: 339 [2019-10-13 23:18:17,707 INFO L226 Difference]: Without dead ends: 251 [2019-10-13 23:18:17,708 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 23:18:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-10-13 23:18:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 229. [2019-10-13 23:18:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-10-13 23:18:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 266 transitions. [2019-10-13 23:18:17,740 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 266 transitions. Word has length 57 [2019-10-13 23:18:17,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:17,741 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 266 transitions. [2019-10-13 23:18:17,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:17,741 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 266 transitions. [2019-10-13 23:18:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-13 23:18:17,743 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:17,743 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 23:18:17,743 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:17,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:17,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1104635173, now seen corresponding path program 1 times [2019-10-13 23:18:17,744 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:17,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878580900] [2019-10-13 23:18:17,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:17,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:17,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:17,858 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 23:18:17,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878580900] [2019-10-13 23:18:17,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:17,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:17,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523285264] [2019-10-13 23:18:17,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:17,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:17,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:17,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:17,864 INFO L87 Difference]: Start difference. First operand 229 states and 266 transitions. Second operand 7 states. [2019-10-13 23:18:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:18,540 INFO L93 Difference]: Finished difference Result 583 states and 731 transitions. [2019-10-13 23:18:18,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:18:18,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-10-13 23:18:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:18,545 INFO L225 Difference]: With dead ends: 583 [2019-10-13 23:18:18,545 INFO L226 Difference]: Without dead ends: 379 [2019-10-13 23:18:18,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:18:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-13 23:18:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 334. [2019-10-13 23:18:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-10-13 23:18:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 390 transitions. [2019-10-13 23:18:18,603 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 390 transitions. Word has length 61 [2019-10-13 23:18:18,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:18,604 INFO L462 AbstractCegarLoop]: Abstraction has 334 states and 390 transitions. [2019-10-13 23:18:18,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 390 transitions. [2019-10-13 23:18:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 23:18:18,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:18,606 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, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:18,606 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:18,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:18,607 INFO L82 PathProgramCache]: Analyzing trace with hash -484079058, now seen corresponding path program 1 times [2019-10-13 23:18:18,607 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:18,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950362530] [2019-10-13 23:18:18,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:18,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:18,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:18,872 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 23:18:18,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950362530] [2019-10-13 23:18:18,873 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:18,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:18:18,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730184970] [2019-10-13 23:18:18,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:18:18,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:18,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:18:18,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:18:18,875 INFO L87 Difference]: Start difference. First operand 334 states and 390 transitions. Second operand 12 states. [2019-10-13 23:18:19,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:19,881 INFO L93 Difference]: Finished difference Result 1027 states and 1239 transitions. [2019-10-13 23:18:19,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:18:19,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2019-10-13 23:18:19,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:19,887 INFO L225 Difference]: With dead ends: 1027 [2019-10-13 23:18:19,887 INFO L226 Difference]: Without dead ends: 718 [2019-10-13 23:18:19,889 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 23:18:19,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2019-10-13 23:18:19,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 540. [2019-10-13 23:18:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2019-10-13 23:18:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 636 transitions. [2019-10-13 23:18:19,939 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 636 transitions. Word has length 87 [2019-10-13 23:18:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:19,940 INFO L462 AbstractCegarLoop]: Abstraction has 540 states and 636 transitions. [2019-10-13 23:18:19,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:18:19,940 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 636 transitions. [2019-10-13 23:18:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-13 23:18:19,942 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:19,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:19,943 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:19,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1670314107, now seen corresponding path program 1 times [2019-10-13 23:18:19,944 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:19,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888499003] [2019-10-13 23:18:19,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:19,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:19,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:20,128 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 23:18:20,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888499003] [2019-10-13 23:18:20,129 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:20,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:18:20,130 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477739848] [2019-10-13 23:18:20,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:18:20,131 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:20,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:18:20,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:18:20,132 INFO L87 Difference]: Start difference. First operand 540 states and 636 transitions. Second operand 9 states. [2019-10-13 23:18:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:21,006 INFO L93 Difference]: Finished difference Result 1638 states and 1994 transitions. [2019-10-13 23:18:21,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:18:21,006 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2019-10-13 23:18:21,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:21,014 INFO L225 Difference]: With dead ends: 1638 [2019-10-13 23:18:21,015 INFO L226 Difference]: Without dead ends: 1266 [2019-10-13 23:18:21,017 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 23:18:21,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2019-10-13 23:18:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1177. [2019-10-13 23:18:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1177 states. [2019-10-13 23:18:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1407 transitions. [2019-10-13 23:18:21,100 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1407 transitions. Word has length 90 [2019-10-13 23:18:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:21,101 INFO L462 AbstractCegarLoop]: Abstraction has 1177 states and 1407 transitions. [2019-10-13 23:18:21,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:18:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1407 transitions. [2019-10-13 23:18:21,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:18:21,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:21,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:21,104 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:21,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1429652080, now seen corresponding path program 1 times [2019-10-13 23:18:21,105 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:21,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684001691] [2019-10-13 23:18:21,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:21,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:21,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:18:21,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684001691] [2019-10-13 23:18:21,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007273540] [2019-10-13 23:18:21,291 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 23:18:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:21,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:18:21,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:18:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:18:21,682 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:18:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:18:22,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1180009610] [2019-10-13 23:18:22,200 INFO L162 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-10-13 23:18:22,201 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:18:22,210 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:18:22,218 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:18:22,218 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:18:32,490 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:18:34,163 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:18:34,300 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:34,460 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:34,584 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:34,878 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:35,152 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:35,445 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:35,796 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:36,254 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:18:36,438 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:36,656 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:36,853 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:36,976 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:37,126 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:37,136 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:18:37,397 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-13 23:18:37,399 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:18:37,520 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:37,625 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:37,759 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:37,894 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:38,016 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:38,159 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:38,280 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:38,392 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:38,560 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:38,780 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:18:38,884 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:39,122 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,264 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:39,382 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:39,510 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,622 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:39,887 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,993 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:40,215 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:40,556 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:40,877 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,232 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,553 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,874 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,987 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:42,207 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:42,362 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:42,475 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:42,613 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:42,864 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:42,989 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,128 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,242 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,355 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,482 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,615 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:43,730 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:43,864 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,003 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,119 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,405 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,587 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,712 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,837 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,975 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:45,090 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:45,224 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,339 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,454 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,633 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:45,765 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,881 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,012 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:46,221 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:18:46,336 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,467 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:46,582 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,697 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,823 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:47,095 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:47,212 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,346 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,566 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:47,690 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,814 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,927 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,042 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,172 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,299 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:48,414 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:48,550 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:48,775 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:48,889 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:49,058 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:49,264 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:49,380 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:49,506 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:49,720 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:49,834 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:49,961 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:50,167 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:18:50,281 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:50,416 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:50,631 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:50,744 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,869 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,080 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:51,197 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,327 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,440 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,554 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,676 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,902 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:52,017 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:52,142 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:52,358 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:52,471 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:52,596 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:52,709 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:52,824 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:52,945 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:53,179 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:53,315 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 568