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_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:17:06,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:17:06,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:17:06,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:17:06,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:17:06,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:17:06,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:17:06,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:17:06,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:17:06,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:17:06,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:17:06,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:17:06,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:17:06,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:17:06,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:17:06,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:17:06,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:17:06,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:17:06,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:17:06,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:17:06,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:17:06,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:17:06,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:17:06,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:17:06,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:17:06,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:17:06,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:17:06,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:17:06,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:17:06,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:17:06,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:17:06,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:17:06,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:17:06,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:17:06,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:17:06,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:17:06,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:17:06,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:17:06,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:17:06,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:17:06,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:17:06,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:17:06,456 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:17:06,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:17:06,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:17:06,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:17:06,459 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:17:06,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:17:06,459 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:17:06,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:17:06,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:17:06,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:17:06,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:17:06,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:17:06,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:17:06,460 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:17:06,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:17:06,461 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:17:06,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:17:06,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:17:06,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:17:06,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:17:06,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:17:06,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:17:06,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:17:06,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:17:06,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:17:06,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:17:06,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:17:06,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:17:06,463 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 [2019-10-07 15:17:06,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:17:06,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:17:06,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:17:06,779 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:17:06,780 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:17:06,781 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-10-07 15:17:06,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e3f7a88f/0199f52cb3ad4bbab3fb10b8b8b54e20/FLAG2a4cbb50e [2019-10-07 15:17:07,420 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:17:07,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2019-10-07 15:17:07,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e3f7a88f/0199f52cb3ad4bbab3fb10b8b8b54e20/FLAG2a4cbb50e [2019-10-07 15:17:07,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e3f7a88f/0199f52cb3ad4bbab3fb10b8b8b54e20 [2019-10-07 15:17:07,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:17:07,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:17:07,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:17:07,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:17:07,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:17:07,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:17:07" (1/1) ... [2019-10-07 15:17:07,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee1dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:07, skipping insertion in model container [2019-10-07 15:17:07,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:17:07" (1/1) ... [2019-10-07 15:17:07,783 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:17:07,840 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:17:08,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:17:08,353 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:17:08,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:17:08,509 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:17:08,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08 WrapperNode [2019-10-07 15:17:08,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:17:08,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:17:08,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:17:08,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:17:08,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (1/1) ... [2019-10-07 15:17:08,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (1/1) ... [2019-10-07 15:17:08,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (1/1) ... [2019-10-07 15:17:08,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (1/1) ... [2019-10-07 15:17:08,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (1/1) ... [2019-10-07 15:17:08,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (1/1) ... [2019-10-07 15:17:08,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (1/1) ... [2019-10-07 15:17:08,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:17:08,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:17:08,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:17:08,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:17:08,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (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 [2019-10-07 15:17:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:17:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:17:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:17:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:17:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:17:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:17:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:17:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:17:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:17:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:17:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:17:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:17:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:17:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:17:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:17:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:17:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 15:17:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 15:17:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:17:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:17:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:17:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:17:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:17:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:17:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:17:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:17:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:17:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:17:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:17:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:17:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:17:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:17:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:17:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:17:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:17:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:17:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:17:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:17:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:17:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:17:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:17:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:17:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:17:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:17:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:17:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:17:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:17:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:17:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:17:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:17:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:17:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 15:17:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:17:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:17:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:17:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:17:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:17:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:17:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:17:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:17:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:17:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:17:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:17:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:17:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:17:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:17:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:17:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 15:17:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:17:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:17:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:17:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:17:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:17:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:17:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:17:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:17:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:17:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:17:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:17:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:17:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:17:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:17:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:17:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:17:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:17:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:17:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:17:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:17:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:17:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:17:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:17:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:17:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:17:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:17:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:17:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:17:10,306 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:17:10,306 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:17:10,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:17:10 BoogieIcfgContainer [2019-10-07 15:17:10,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:17:10,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:17:10,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:17:10,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:17:10,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:17:07" (1/3) ... [2019-10-07 15:17:10,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6ff76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:17:10, skipping insertion in model container [2019-10-07 15:17:10,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:08" (2/3) ... [2019-10-07 15:17:10,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6ff76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:17:10, skipping insertion in model container [2019-10-07 15:17:10,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:17:10" (3/3) ... [2019-10-07 15:17:10,316 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2019-10-07 15:17:10,328 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:17:10,338 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:17:10,352 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:17:10,386 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:17:10,386 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:17:10,387 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:17:10,387 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:17:10,387 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:17:10,388 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:17:10,388 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:17:10,388 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:17:10,413 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-10-07 15:17:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-07 15:17:10,424 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:10,426 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:10,428 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:10,437 INFO L82 PathProgramCache]: Analyzing trace with hash 60094482, now seen corresponding path program 1 times [2019-10-07 15:17:10,448 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:10,449 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:10,449 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:10,450 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:10,924 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:10,925 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:10,926 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:17:10,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:17:10,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:17:10,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:17:10,948 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2019-10-07 15:17:10,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:10,990 INFO L93 Difference]: Finished difference Result 216 states and 259 transitions. [2019-10-07 15:17:10,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:17:10,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-07 15:17:10,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:11,005 INFO L225 Difference]: With dead ends: 216 [2019-10-07 15:17:11,005 INFO L226 Difference]: Without dead ends: 110 [2019-10-07 15:17:11,009 INFO L606 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 [2019-10-07 15:17:11,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-07 15:17:11,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-07 15:17:11,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-07 15:17:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2019-10-07 15:17:11,074 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 46 [2019-10-07 15:17:11,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:11,076 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2019-10-07 15:17:11,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:17:11,076 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2019-10-07 15:17:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 15:17:11,083 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:11,084 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:11,084 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:11,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:11,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1957286119, now seen corresponding path program 1 times [2019-10-07 15:17:11,086 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:11,086 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:11,086 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:11,086 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:11,229 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:11,230 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:11,230 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:17:11,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:11,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:11,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:17:11,233 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand 3 states. [2019-10-07 15:17:11,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:11,257 INFO L93 Difference]: Finished difference Result 174 states and 198 transitions. [2019-10-07 15:17:11,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:11,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-07 15:17:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:11,265 INFO L225 Difference]: With dead ends: 174 [2019-10-07 15:17:11,265 INFO L226 Difference]: Without dead ends: 102 [2019-10-07 15:17:11,267 INFO L606 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 [2019-10-07 15:17:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-10-07 15:17:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-10-07 15:17:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-07 15:17:11,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2019-10-07 15:17:11,296 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 47 [2019-10-07 15:17:11,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:11,297 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2019-10-07 15:17:11,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:11,297 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2019-10-07 15:17:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-07 15:17:11,299 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:11,299 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:11,300 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:11,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:11,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1775341699, now seen corresponding path program 1 times [2019-10-07 15:17:11,300 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:11,300 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:11,301 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:11,301 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:11,492 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:11,492 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:11,493 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:17:11,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:17:11,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:17:11,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:17:11,494 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand 7 states. [2019-10-07 15:17:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:11,830 INFO L93 Difference]: Finished difference Result 179 states and 204 transitions. [2019-10-07 15:17:11,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:17:11,831 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2019-10-07 15:17:11,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:11,833 INFO L225 Difference]: With dead ends: 179 [2019-10-07 15:17:11,833 INFO L226 Difference]: Without dead ends: 102 [2019-10-07 15:17:11,835 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:17:11,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-10-07 15:17:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-10-07 15:17:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-07 15:17:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2019-10-07 15:17:11,847 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 49 [2019-10-07 15:17:11,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:11,847 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2019-10-07 15:17:11,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:17:11,847 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2019-10-07 15:17:11,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-07 15:17:11,850 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:11,850 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:11,850 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:11,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:11,851 INFO L82 PathProgramCache]: Analyzing trace with hash 8463179, now seen corresponding path program 1 times [2019-10-07 15:17:11,851 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:11,851 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:11,851 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:11,851 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:11,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:11,954 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:11,954 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:11,954 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:17:11,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:17:11,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:17:11,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:17:11,955 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand 5 states. [2019-10-07 15:17:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:12,451 INFO L93 Difference]: Finished difference Result 263 states and 308 transitions. [2019-10-07 15:17:12,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:17:12,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-10-07 15:17:12,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:12,458 INFO L225 Difference]: With dead ends: 263 [2019-10-07 15:17:12,458 INFO L226 Difference]: Without dead ends: 186 [2019-10-07 15:17:12,463 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:17:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2019-10-07 15:17:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 171. [2019-10-07 15:17:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-07 15:17:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 189 transitions. [2019-10-07 15:17:12,501 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 189 transitions. Word has length 62 [2019-10-07 15:17:12,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:12,502 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 189 transitions. [2019-10-07 15:17:12,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:17:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 189 transitions. [2019-10-07 15:17:12,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-07 15:17:12,506 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:12,506 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:12,506 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:12,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:12,507 INFO L82 PathProgramCache]: Analyzing trace with hash 756721838, now seen corresponding path program 1 times [2019-10-07 15:17:12,507 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:12,510 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:12,510 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:12,511 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:12,667 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:12,668 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:12,668 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 15:17:12,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:17:12,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:17:12,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 15:17:12,669 INFO L87 Difference]: Start difference. First operand 171 states and 189 transitions. Second operand 6 states. [2019-10-07 15:17:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:12,871 INFO L93 Difference]: Finished difference Result 446 states and 508 transitions. [2019-10-07 15:17:12,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:17:12,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2019-10-07 15:17:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:12,876 INFO L225 Difference]: With dead ends: 446 [2019-10-07 15:17:12,876 INFO L226 Difference]: Without dead ends: 300 [2019-10-07 15:17:12,877 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:17:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-10-07 15:17:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 290. [2019-10-07 15:17:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-10-07 15:17:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 318 transitions. [2019-10-07 15:17:12,927 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 318 transitions. Word has length 71 [2019-10-07 15:17:12,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:12,927 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 318 transitions. [2019-10-07 15:17:12,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:17:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 318 transitions. [2019-10-07 15:17:12,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-07 15:17:12,929 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:12,929 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:12,930 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:12,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:12,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1633920219, now seen corresponding path program 1 times [2019-10-07 15:17:12,930 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:12,931 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:12,931 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:12,931 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:13,011 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:13,012 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:13,012 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:17:13,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:13,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:13,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:17:13,013 INFO L87 Difference]: Start difference. First operand 290 states and 318 transitions. Second operand 3 states. [2019-10-07 15:17:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:13,063 INFO L93 Difference]: Finished difference Result 436 states and 502 transitions. [2019-10-07 15:17:13,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:13,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2019-10-07 15:17:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:13,067 INFO L225 Difference]: With dead ends: 436 [2019-10-07 15:17:13,068 INFO L226 Difference]: Without dead ends: 433 [2019-10-07 15:17:13,068 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:17:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-07 15:17:13,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-07 15:17:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-07 15:17:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 497 transitions. [2019-10-07 15:17:13,106 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 497 transitions. Word has length 74 [2019-10-07 15:17:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:13,107 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 497 transitions. [2019-10-07 15:17:13,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 497 transitions. [2019-10-07 15:17:13,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-07 15:17:13,116 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:13,117 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 15:17:13,117 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:13,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:13,117 INFO L82 PathProgramCache]: Analyzing trace with hash 201450369, now seen corresponding path program 1 times [2019-10-07 15:17:13,118 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:13,118 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:13,118 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:13,118 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:13,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:17:13,305 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:13,305 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:13,305 INFO L95 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 [2019-10-07 15:17:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:13,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 15:17:13,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:17:13,635 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:17:13,980 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:17:13,980 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 7] total 15 [2019-10-07 15:17:13,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:17:13,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:17:13,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2019-10-07 15:17:13,982 INFO L87 Difference]: Start difference. First operand 433 states and 497 transitions. Second operand 6 states. [2019-10-07 15:17:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:14,357 INFO L93 Difference]: Finished difference Result 702 states and 819 transitions. [2019-10-07 15:17:14,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:17:14,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2019-10-07 15:17:14,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:14,361 INFO L225 Difference]: With dead ends: 702 [2019-10-07 15:17:14,361 INFO L226 Difference]: Without dead ends: 413 [2019-10-07 15:17:14,362 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2019-10-07 15:17:14,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-07 15:17:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 398. [2019-10-07 15:17:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-07 15:17:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 444 transitions. [2019-10-07 15:17:14,391 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 444 transitions. Word has length 122 [2019-10-07 15:17:14,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:14,391 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 444 transitions. [2019-10-07 15:17:14,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:17:14,392 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 444 transitions. [2019-10-07 15:17:14,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-07 15:17:14,394 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:14,394 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 15:17:14,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:14,600 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:14,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:14,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1954551727, now seen corresponding path program 1 times [2019-10-07 15:17:14,601 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:14,602 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:14,602 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:14,602 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:17:14,716 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:14,716 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:14,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 15:17:14,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:14,981 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:17:15,196 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:17:15,196 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-07 15:17:15,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:15,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:15,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:17:15,198 INFO L87 Difference]: Start difference. First operand 398 states and 444 transitions. Second operand 3 states. [2019-10-07 15:17:15,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:15,269 INFO L93 Difference]: Finished difference Result 728 states and 814 transitions. [2019-10-07 15:17:15,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:15,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-07 15:17:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:15,273 INFO L225 Difference]: With dead ends: 728 [2019-10-07 15:17:15,273 INFO L226 Difference]: Without dead ends: 355 [2019-10-07 15:17:15,275 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 244 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:17:15,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-07 15:17:15,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2019-10-07 15:17:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-07 15:17:15,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 384 transitions. [2019-10-07 15:17:15,296 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 384 transitions. Word has length 122 [2019-10-07 15:17:15,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:15,296 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 384 transitions. [2019-10-07 15:17:15,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:15,296 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 384 transitions. [2019-10-07 15:17:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 15:17:15,298 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:15,299 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 15:17:15,503 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:15,504 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:15,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2040046191, now seen corresponding path program 1 times [2019-10-07 15:17:15,504 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:15,504 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:15,504 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:15,505 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 15:17:15,792 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:15,792 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:15,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-07 15:17:15,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:16,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:16,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:16,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:16,377 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:16,377 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:16,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:17,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:17,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:17,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:17,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:17,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:17,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:17,985 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 15:17:17,985 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:17:17,985 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14, 12] total 34 [2019-10-07 15:17:17,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:17:17,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:17:17,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=958, Unknown=0, NotChecked=0, Total=1122 [2019-10-07 15:17:17,987 INFO L87 Difference]: Start difference. First operand 355 states and 384 transitions. Second operand 12 states. [2019-10-07 15:17:19,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:19,667 INFO L93 Difference]: Finished difference Result 823 states and 930 transitions. [2019-10-07 15:17:19,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 15:17:19,667 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 125 [2019-10-07 15:17:19,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:19,672 INFO L225 Difference]: With dead ends: 823 [2019-10-07 15:17:19,672 INFO L226 Difference]: Without dead ends: 493 [2019-10-07 15:17:19,674 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 224 SyntacticMatches, 12 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=305, Invalid=1765, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 15:17:19,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-07 15:17:19,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 427. [2019-10-07 15:17:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-10-07 15:17:19,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 465 transitions. [2019-10-07 15:17:19,701 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 465 transitions. Word has length 125 [2019-10-07 15:17:19,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:19,702 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 465 transitions. [2019-10-07 15:17:19,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:17:19,702 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 465 transitions. [2019-10-07 15:17:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 15:17:19,704 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:19,704 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 15:17:19,909 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:19,910 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:19,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:19,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1724913290, now seen corresponding path program 1 times [2019-10-07 15:17:19,911 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:19,911 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:19,911 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:19,911 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:19,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:17:20,182 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:20,182 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:20,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 50 conjunts are in the unsatisfiable core [2019-10-07 15:17:20,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:20,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:20,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:20,901 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:20,901 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:21,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,499 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 15:17:21,851 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:17:21,883 INFO L162 IcfgInterpreter]: Started Sifa with 98 locations of interest [2019-10-07 15:17:21,883 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:17:21,889 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:17:21,896 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:17:21,896 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:17:31,551 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:17:33,200 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:17:33,326 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:17:33,502 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:17:33,637 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:17:33,889 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:34,109 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:34,309 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:34,512 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:34,871 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:17:35,017 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:35,207 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:35,310 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:35,446 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:35,564 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:17:35,572 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:17:35,907 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-07 15:17:35,908 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:17:36,022 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:36,144 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:36,277 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:36,392 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:36,536 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:36,660 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:36,780 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:36,891 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:37,018 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:37,259 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-07 15:17:37,370 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:37,501 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:37,617 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:37,860 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:38,060 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:38,181 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:38,294 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:38,397 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:38,528 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:38,668 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:38,895 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:39,096 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:39,215 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:39,318 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:39,438 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:39,560 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:39,760 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:39,881 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:40,090 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:40,247 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:40,349 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:17:40,569 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:40,709 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:40,822 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:40,947 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:41,065 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:41,196 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:41,351 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:41,461 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:41,573 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:41,697 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:41,889 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:42,028 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:42,189 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:42,396 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:17:42,508 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:42,634 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:42,748 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:42,860 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:42,985 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,105 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:43,228 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:43,359 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,472 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,583 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,713 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:43,840 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:43,955 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:44,130 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:44,391 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:17:44,507 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:44,637 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:44,749 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:44,864 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:44,991 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:45,226 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:45,363 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:45,494 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:45,607 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:45,722 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:45,858 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:45,970 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:46,081 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:46,202 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:46,330 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:46,447 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:46,602 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:46,825 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:46,942 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:47,077 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:47,304 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:47,421 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:47,546 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:47,762 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:17:47,874 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:48,006 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:48,203 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:17:48,317 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:48,455 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:48,702 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:48,984 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:49,224 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:49,385 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:49,495 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:49,620 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:49,729 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:49,843 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:49,961 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,093 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,209 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,334 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,451 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,562 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,708 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,823 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:50,932 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:51,059 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:51,282 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:51,394 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:51,571 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:51,775 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:17:51,888 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:52,015 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,210 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:17:52,320 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:52,448 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,659 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:17:52,774 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:52,912 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:53,122 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:17:53,239 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:53,365 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:53,578 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:17:53,692 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:53,825 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:54,042 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:17:54,160 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:54,292 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:17:54,417 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:54,531 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:54,655 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:54,769 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:54,878 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:55,006 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:55,115 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:55,232 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:55,354 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:55,564 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:17:55,679 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:55,807 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,010 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:17:56,121 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:56,246 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,364 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:56,481 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:56,611 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:56,821 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:17:56,934 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,058 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:57,188 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:57,301 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:57,427 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:57,544 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:57,663 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:57,790 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:57,899 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:58,012 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:58,131 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:58,352 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:17:58,463 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:58,588 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:58,790 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:17:58,912 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:17:59,039 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:17:59,165 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:59,274 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:59,394 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:59,510 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:59,620 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:59,742 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:59,865 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:17:59,974 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:00,101 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:00,218 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:00,331 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:00,450 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:00,564 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:00,683 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:00,801 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:01,003 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:18:01,117 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:18:01,245 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:01,447 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:18:01,558 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:18:01,683 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:01,793 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:18:01,906 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:18:02,029 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:02,233 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:18:02,343 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:18:02,467 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:02,668 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:18:02,779 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:02,920 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:02,924 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 550 for LOIs [2019-10-07 15:18:03,027 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:03,246 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:03,371 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:18:03,474 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:18:03,592 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:03,784 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 552 [2019-10-07 15:18:03,893 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:18:04,011 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:04,115 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:18:04,221 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:18:04,342 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:04,347 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 548 for LOIs [2019-10-07 15:18:04,664 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:18:04,797 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:04,903 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:05,024 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:05,129 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:05,233 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:05,355 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:05,467 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:18:05,576 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:18:05,701 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:18:05,813 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:18:05,923 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:18:06,056 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 574 [2019-10-07 15:18:06,166 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:18:06,278 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:18:06,414 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 15:18:06,536 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:06,642 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:06,779 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 580 [2019-10-07 15:18:06,924 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:07,269 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 612 [2019-10-07 15:18:07,463 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:07,641 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:07,817 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:07,977 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:08,135 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:08,295 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:08,455 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:08,616 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:08,791 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:08,953 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:09,114 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:09,286 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:09,450 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:09,617 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:09,785 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:09,950 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:10,115 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:10,275 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:10,457 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 601 [2019-10-07 15:18:10,597 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 601 [2019-10-07 15:18:10,803 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 608 [2019-10-07 15:18:10,917 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 575 [2019-10-07 15:18:11,212 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:18:11,589 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 599 [2019-10-07 15:18:11,709 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:18:11,824 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:18:11,956 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:18:12,282 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 15:18:12,524 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:18:12,685 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:12,974 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:13,290 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:13,420 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:13,703 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:14,015 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:14,129 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:14,409 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:14,722 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:14,837 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:15,115 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:15,429 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:15,543 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:15,832 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:16,153 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:16,263 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:16,549 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:16,868 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:16,977 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:17,267 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:17,589 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:17,698 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:17,982 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:18,307 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:18,421 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:18,696 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:19,023 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:19,135 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:19,421 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:19,744 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:19,852 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:20,126 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:20,449 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:20,564 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:20,837 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:21,161 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:21,274 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:21,554 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:21,868 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:21,983 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:22,258 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:22,565 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:22,676 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:22,964 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:23,278 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:23,387 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:23,659 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:23,967 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:24,078 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:24,358 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:24,672 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:24,778 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:25,059 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:25,368 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:25,477 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:25,755 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:26,244 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:26,353 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:26,642 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:26,958 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:27,074 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:27,357 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:27,674 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:27,782 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:28,067 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:28,390 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:28,501 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:28,781 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:29,101 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:29,208 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:29,489 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:29,810 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:29,918 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:30,203 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:30,511 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:30,629 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:30,904 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:31,213 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:31,324 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:31,603 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:31,916 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:32,023 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:32,309 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:32,627 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:32,735 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:33,020 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:33,342 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:33,456 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:33,731 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:34,051 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:34,159 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:34,449 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:34,767 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:34,874 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:35,159 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:35,477 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:35,585 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:35,874 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:36,195 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:36,302 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:36,578 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:36,887 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:36,998 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:37,288 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:37,607 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:37,716 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:37,999 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:38,315 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:38,421 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:38,705 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:18:39,029 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:18:39,408 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 587 [2019-10-07 15:18:39,829 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 589 [2019-10-07 15:18:40,305 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 625 DAG size of output: 625 [2019-10-07 15:18:40,709 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 615 [2019-10-07 15:18:41,078 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 610 DAG size of output: 610 [2019-10-07 15:18:41,449 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 610 DAG size of output: 610 [2019-10-07 15:18:41,784 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 601 [2019-10-07 15:18:42,106 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 603 [2019-10-07 15:18:42,430 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 603 [2019-10-07 15:18:42,749 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 623 DAG size of output: 619 [2019-10-07 15:18:42,973 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 608 [2019-10-07 15:18:43,284 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:18:43,285 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:18:43,290 INFO L168 Benchmark]: Toolchain (without parser) took 95524.28 ms. Allocated memory was 145.8 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 102.4 MB in the beginning and 227.9 MB in the end (delta: -125.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2019-10-07 15:18:43,290 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:18:43,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.97 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.2 MB in the beginning and 170.8 MB in the end (delta: -68.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:43,291 INFO L168 Benchmark]: Boogie Preprocessor took 99.08 ms. Allocated memory is still 202.9 MB. Free memory was 170.8 MB in the beginning and 166.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:43,291 INFO L168 Benchmark]: RCFGBuilder took 1698.21 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 145.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:43,291 INFO L168 Benchmark]: TraceAbstraction took 92979.35 ms. Allocated memory was 236.5 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 145.8 MB in the beginning and 227.9 MB in the end (delta: -82.1 MB). Peak memory consumption was 987.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:43,292 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.97 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.2 MB in the beginning and 170.8 MB in the end (delta: -68.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.08 ms. Allocated memory is still 202.9 MB. Free memory was 170.8 MB in the beginning and 166.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1698.21 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 145.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 92979.35 ms. Allocated memory was 236.5 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 145.8 MB in the beginning and 227.9 MB in the end (delta: -82.1 MB). Peak memory consumption was 987.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true;: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...