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_spec1_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:15:29,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:15:29,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:15:29,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:15:29,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:15:29,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:15:29,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:15:29,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:15:29,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:15:29,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:15:29,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:15:29,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:15:29,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:15:29,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:15:29,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:15:29,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:15:29,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:15:29,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:15:29,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:15:29,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:15:29,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:15:29,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:15:29,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:15:29,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:15:29,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:15:29,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:15:29,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:15:29,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:15:29,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:15:29,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:15:29,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:15:29,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:15:29,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:15:29,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:15:29,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:15:29,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:15:29,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:15:29,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:15:29,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:15:29,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:15:29,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:15:29,321 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 15:15:29,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:15:29,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:15:29,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:15:29,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:15:29,348 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:15:29,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:15:29,349 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:15:29,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:15:29,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:15:29,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:15:29,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:15:29,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:15:29,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:15:29,351 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:15:29,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:15:29,352 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:15:29,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:15:29,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:15:29,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:15:29,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:15:29,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:15:29,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:15:29,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:15:29,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:15:29,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:15:29,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:15:29,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:15:29,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:15:29,355 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 15:15:29,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:15:29,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:15:29,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:15:29,643 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:15:29,644 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:15:29,644 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-07 15:15:29,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8874cc51c/b3ca8e7afbc648899ab18642625fbbb9/FLAG77375d14e [2019-10-07 15:15:30,260 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:15:30,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-07 15:15:30,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8874cc51c/b3ca8e7afbc648899ab18642625fbbb9/FLAG77375d14e [2019-10-07 15:15:30,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8874cc51c/b3ca8e7afbc648899ab18642625fbbb9 [2019-10-07 15:15:30,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:15:30,533 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:15:30,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:15:30,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:15:30,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:15:30,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:15:30" (1/1) ... [2019-10-07 15:15:30,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c65c842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:30, skipping insertion in model container [2019-10-07 15:15:30,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:15:30" (1/1) ... [2019-10-07 15:15:30,547 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:15:30,599 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:15:31,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:15:31,124 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:15:31,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:15:31,270 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:15:31,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31 WrapperNode [2019-10-07 15:15:31,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:15:31,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:15:31,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:15:31,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:15:31,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (1/1) ... [2019-10-07 15:15:31,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (1/1) ... [2019-10-07 15:15:31,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (1/1) ... [2019-10-07 15:15:31,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (1/1) ... [2019-10-07 15:15:31,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (1/1) ... [2019-10-07 15:15:31,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (1/1) ... [2019-10-07 15:15:31,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (1/1) ... [2019-10-07 15:15:31,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:15:31,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:15:31,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:15:31,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:15:31,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (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 15:15:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:15:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:15:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:15:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:15:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:15:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:15:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:15:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:15:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 15:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:15:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:15:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:15:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:15:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:15:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:15:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:15:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:15:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:15:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:15:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:15:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:15:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:15:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 15:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:15:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:15:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:15:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:15:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:15:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:15:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:15:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:15:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:15:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:15:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:15:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:15:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:15:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:15:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:15:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:15:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:15:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:15:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:15:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:15:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:15:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:15:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:15:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:15:33,031 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:15:33,032 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:15:33,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:15:33 BoogieIcfgContainer [2019-10-07 15:15:33,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:15:33,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:15:33,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:15:33,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:15:33,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:15:30" (1/3) ... [2019-10-07 15:15:33,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7326b12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:15:33, skipping insertion in model container [2019-10-07 15:15:33,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:15:31" (2/3) ... [2019-10-07 15:15:33,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7326b12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:15:33, skipping insertion in model container [2019-10-07 15:15:33,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:15:33" (3/3) ... [2019-10-07 15:15:33,042 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2019-10-07 15:15:33,052 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:15:33,062 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:15:33,074 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:15:33,102 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:15:33,102 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:15:33,102 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:15:33,102 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:15:33,103 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:15:33,103 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:15:33,103 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:15:33,103 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:15:33,126 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-10-07 15:15:33,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 15:15:33,135 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:33,136 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] [2019-10-07 15:15:33,138 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:33,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:33,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1144410370, now seen corresponding path program 1 times [2019-10-07 15:15:33,154 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:33,154 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:33,155 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:33,155 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:33,525 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 15:15:33,526 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:33,527 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:33,535 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:15:33,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:15:33,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:15:33,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:15:33,557 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-10-07 15:15:33,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:33,612 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2019-10-07 15:15:33,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:15:33,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-07 15:15:33,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:33,636 INFO L225 Difference]: With dead ends: 241 [2019-10-07 15:15:33,636 INFO L226 Difference]: Without dead ends: 121 [2019-10-07 15:15:33,643 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 15:15:33,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-07 15:15:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-07 15:15:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-07 15:15:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-10-07 15:15:33,694 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 42 [2019-10-07 15:15:33,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:33,695 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-10-07 15:15:33,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:15:33,695 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-10-07 15:15:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-07 15:15:33,699 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:33,699 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] [2019-10-07 15:15:33,700 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:33,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:33,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1234064028, now seen corresponding path program 1 times [2019-10-07 15:15:33,700 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:33,701 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:33,701 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:33,701 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:33,812 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 15:15:33,812 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:33,813 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:33,813 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:15:33,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:15:33,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:15:33,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:15:33,817 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 3 states. [2019-10-07 15:15:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:33,851 INFO L93 Difference]: Finished difference Result 195 states and 222 transitions. [2019-10-07 15:15:33,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:15:33,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-07 15:15:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:33,857 INFO L225 Difference]: With dead ends: 195 [2019-10-07 15:15:33,858 INFO L226 Difference]: Without dead ends: 113 [2019-10-07 15:15:33,860 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 15:15:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-07 15:15:33,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-07 15:15:33,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-07 15:15:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2019-10-07 15:15:33,887 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 43 [2019-10-07 15:15:33,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:33,888 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2019-10-07 15:15:33,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:15:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2019-10-07 15:15:33,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-07 15:15:33,896 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:33,897 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 15:15:33,897 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:33,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:33,897 INFO L82 PathProgramCache]: Analyzing trace with hash -25820174, now seen corresponding path program 1 times [2019-10-07 15:15:33,898 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:33,898 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:33,898 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:33,898 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:34,123 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 15:15:34,123 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:34,124 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:34,124 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:15:34,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:15:34,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:15:34,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:15:34,125 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 7 states. [2019-10-07 15:15:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:34,451 INFO L93 Difference]: Finished difference Result 204 states and 233 transitions. [2019-10-07 15:15:34,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:15:34,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-07 15:15:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:34,453 INFO L225 Difference]: With dead ends: 204 [2019-10-07 15:15:34,453 INFO L226 Difference]: Without dead ends: 113 [2019-10-07 15:15:34,454 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:15:34,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-07 15:15:34,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-07 15:15:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-07 15:15:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2019-10-07 15:15:34,468 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 46 [2019-10-07 15:15:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:34,469 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2019-10-07 15:15:34,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:15:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2019-10-07 15:15:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-07 15:15:34,471 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:34,472 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] [2019-10-07 15:15:34,472 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:34,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:34,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1368748269, now seen corresponding path program 1 times [2019-10-07 15:15:34,473 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:34,473 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:34,473 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:34,473 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:34,591 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 15:15:34,592 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:34,592 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:34,592 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:15:34,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:15:34,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:15:34,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:15:34,595 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand 5 states. [2019-10-07 15:15:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:35,098 INFO L93 Difference]: Finished difference Result 294 states and 344 transitions. [2019-10-07 15:15:35,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:15:35,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-10-07 15:15:35,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:35,102 INFO L225 Difference]: With dead ends: 294 [2019-10-07 15:15:35,102 INFO L226 Difference]: Without dead ends: 203 [2019-10-07 15:15:35,109 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 15:15:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-10-07 15:15:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2019-10-07 15:15:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-10-07 15:15:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 205 transitions. [2019-10-07 15:15:35,152 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 205 transitions. Word has length 59 [2019-10-07 15:15:35,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:35,152 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 205 transitions. [2019-10-07 15:15:35,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:15:35,153 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 205 transitions. [2019-10-07 15:15:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-07 15:15:35,154 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:35,154 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] [2019-10-07 15:15:35,155 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:35,155 INFO L82 PathProgramCache]: Analyzing trace with hash -508188684, now seen corresponding path program 1 times [2019-10-07 15:15:35,155 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:35,156 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:35,156 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:35,156 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:35,311 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 15:15:35,311 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:35,311 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:35,312 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 15:15:35,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:15:35,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:15:35,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 15:15:35,313 INFO L87 Difference]: Start difference. First operand 186 states and 205 transitions. Second operand 6 states. [2019-10-07 15:15:35,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:35,508 INFO L93 Difference]: Finished difference Result 500 states and 568 transitions. [2019-10-07 15:15:35,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:15:35,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-10-07 15:15:35,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:35,513 INFO L225 Difference]: With dead ends: 500 [2019-10-07 15:15:35,514 INFO L226 Difference]: Without dead ends: 336 [2019-10-07 15:15:35,515 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 15:15:35,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-07 15:15:35,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 326. [2019-10-07 15:15:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-07 15:15:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 359 transitions. [2019-10-07 15:15:35,554 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 359 transitions. Word has length 68 [2019-10-07 15:15:35,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:35,555 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 359 transitions. [2019-10-07 15:15:35,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:15:35,555 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 359 transitions. [2019-10-07 15:15:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-07 15:15:35,557 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:35,557 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 15:15:35,557 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:35,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:35,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1063035098, now seen corresponding path program 1 times [2019-10-07 15:15:35,558 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:35,558 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:35,558 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:35,558 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:35,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:35,665 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 15:15:35,665 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:35,666 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:15:35,666 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:15:35,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:15:35,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:15:35,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:15:35,667 INFO L87 Difference]: Start difference. First operand 326 states and 359 transitions. Second operand 7 states. [2019-10-07 15:15:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:36,236 INFO L93 Difference]: Finished difference Result 356 states and 404 transitions. [2019-10-07 15:15:36,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:15:36,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2019-10-07 15:15:36,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:36,240 INFO L225 Difference]: With dead ends: 356 [2019-10-07 15:15:36,240 INFO L226 Difference]: Without dead ends: 353 [2019-10-07 15:15:36,241 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:15:36,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-10-07 15:15:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 326. [2019-10-07 15:15:36,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-07 15:15:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 358 transitions. [2019-10-07 15:15:36,268 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 358 transitions. Word has length 71 [2019-10-07 15:15:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:36,269 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 358 transitions. [2019-10-07 15:15:36,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:15:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 358 transitions. [2019-10-07 15:15:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-07 15:15:36,271 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:36,271 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:36,272 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:36,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:36,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1507615519, now seen corresponding path program 1 times [2019-10-07 15:15:36,272 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:36,272 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:36,273 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:36,273 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:15:36,458 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:36,458 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:15:36,459 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 15:15:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:36,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 15:15:36,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:15:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:15:36,764 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:15:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:15:37,341 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:15:37,341 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 23 [2019-10-07 15:15:37,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:15:37,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:15:37,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2019-10-07 15:15:37,343 INFO L87 Difference]: Start difference. First operand 326 states and 358 transitions. Second operand 11 states. [2019-10-07 15:15:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:38,048 INFO L93 Difference]: Finished difference Result 749 states and 855 transitions. [2019-10-07 15:15:38,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:15:38,049 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2019-10-07 15:15:38,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:38,052 INFO L225 Difference]: With dead ends: 749 [2019-10-07 15:15:38,053 INFO L226 Difference]: Without dead ends: 445 [2019-10-07 15:15:38,055 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2019-10-07 15:15:38,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-07 15:15:38,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 437. [2019-10-07 15:15:38,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-07 15:15:38,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 483 transitions. [2019-10-07 15:15:38,087 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 483 transitions. Word has length 84 [2019-10-07 15:15:38,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:38,088 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 483 transitions. [2019-10-07 15:15:38,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:15:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 483 transitions. [2019-10-07 15:15:38,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 15:15:38,091 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:38,092 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:38,304 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:15:38,305 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:38,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:38,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1609686826, now seen corresponding path program 1 times [2019-10-07 15:15:38,305 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:38,306 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:38,306 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:38,306 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:38,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 15:15:38,633 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:38,633 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:15:38,633 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 15:15:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:38,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-07 15:15:38,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:15:38,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:39,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:39,137 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:15:39,138 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:15:39,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:40,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:40,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:40,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:40,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 15:15:40,751 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:15:40,752 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-07 15:15:40,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:15:40,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:15:40,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 15:15:40,754 INFO L87 Difference]: Start difference. First operand 437 states and 483 transitions. Second operand 14 states. [2019-10-07 15:15:42,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:15:42,961 INFO L93 Difference]: Finished difference Result 1131 states and 1322 transitions. [2019-10-07 15:15:42,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 15:15:42,962 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 130 [2019-10-07 15:15:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:15:42,967 INFO L225 Difference]: With dead ends: 1131 [2019-10-07 15:15:42,967 INFO L226 Difference]: Without dead ends: 716 [2019-10-07 15:15:42,970 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 237 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-07 15:15:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2019-10-07 15:15:43,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 683. [2019-10-07 15:15:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-10-07 15:15:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 778 transitions. [2019-10-07 15:15:43,015 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 778 transitions. Word has length 130 [2019-10-07 15:15:43,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:15:43,015 INFO L462 AbstractCegarLoop]: Abstraction has 683 states and 778 transitions. [2019-10-07 15:15:43,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:15:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 778 transitions. [2019-10-07 15:15:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:15:43,019 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:15:43,019 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:15:43,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:15:43,226 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:15:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:15:43,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1315888121, now seen corresponding path program 1 times [2019-10-07 15:15:43,226 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:15:43,226 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:43,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:43,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:15:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:15:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:15:43,587 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:15:43,588 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:15:43,588 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 15:15:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:15:43,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-07 15:15:43,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:15:43,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:43,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:15:44,118 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:15:44,462 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:44,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:15:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:15:45,020 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:15:45,059 INFO L162 IcfgInterpreter]: Started Sifa with 106 locations of interest [2019-10-07 15:15:45,059 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:15:45,065 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:15:45,071 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:15:45,071 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:15:54,754 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 15:15:56,358 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:15:56,540 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:15:56,673 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:15:56,800 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:15:57,016 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:57,206 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:57,428 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:57,653 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:57,954 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-07 15:15:58,141 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:58,273 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:58,394 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:58,520 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:58,670 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:15:58,678 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-07 15:15:58,915 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-07 15:15:59,019 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:15:59,122 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:15:59,277 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:15:59,428 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:15:59,535 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:15:59,669 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:15:59,819 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:15:59,948 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:00,064 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:00,284 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-07 15:16:00,523 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:00,631 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:00,840 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:01,047 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:01,198 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:01,505 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:01,832 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:02,139 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:02,452 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:02,579 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:02,790 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:03,099 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:03,305 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:03,424 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:03,559 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:03,665 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:03,784 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:03,977 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:04,109 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:04,250 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:04,357 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:04,463 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:04,577 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:04,701 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:04,809 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:04,948 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:05,174 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:05,280 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:05,399 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:05,592 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:05,699 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:05,841 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:05,950 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:06,056 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:06,173 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:06,281 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:06,391 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:06,517 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:06,637 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:06,752 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:06,871 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:07,063 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-07 15:16:07,170 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:07,356 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:07,463 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:07,571 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:07,705 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:07,940 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:08,045 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:08,175 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:08,365 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:08,471 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:08,599 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:08,707 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:08,813 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:08,926 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:09,185 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:09,294 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:09,414 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:09,637 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:09,755 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:09,882 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:10,083 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:10,189 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:10,306 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:10,507 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:10,613 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:10,774 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:11,004 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-07 15:16:11,109 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:11,238 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:11,441 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:11,546 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:11,661 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,088 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:12,218 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,334 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,439 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,544 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,656 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:12,982 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:13,098 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,213 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,403 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:13,507 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:13,624 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,009 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:14,127 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,256 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,486 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:14,591 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,706 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,810 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:14,915 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:15,028 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:15,247 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:15,357 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,477 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,689 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:15,796 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:15,916 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:16,023 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:16,130 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:16,245 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:16,437 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 560 [2019-10-07 15:16:16,545 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:16,665 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:16,849 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 562 [2019-10-07 15:16:16,957 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:17,086 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:17,283 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:17,392 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:17,507 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:17,697 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:17,802 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:17,919 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,024 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,141 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,254 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:18,634 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:18,816 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:18,979 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,176 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:19,283 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,402 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,511 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,619 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,735 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:19,922 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 560 [2019-10-07 15:16:20,029 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:20,148 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:20,341 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 562 [2019-10-07 15:16:20,454 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:20,578 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:20,776 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 562 [2019-10-07 15:16:20,890 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:21,008 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:21,194 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 562 [2019-10-07 15:16:21,301 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:21,422 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:16:21,620 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:21,724 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:21,841 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,033 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:22,138 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,254 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,359 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,463 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,576 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:22,781 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:22,888 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:23,010 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:23,203 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:23,309 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:23,430 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:23,537 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:23,643 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:23,758 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:23,948 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:16:24,055 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:16:24,173 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:24,368 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:24,473 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:24,588 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:24,777 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-07 15:16:24,881 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,021 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,132 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,237 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,362 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:25,573 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:25,680 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:25,807 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:26,001 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:16:26,109 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:26,230 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:26,234 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 544 for LOIs [2019-10-07 15:16:26,437 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:16:26,549 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:26,554 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 542 for LOIs [2019-10-07 15:16:26,853 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:16:27,188 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:16:27,349 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:16:27,544 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:16:27,669 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 15:16:27,896 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 603 [2019-10-07 15:16:28,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:16:28,160 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 15:16:28,167 INFO L168 Benchmark]: Toolchain (without parser) took 57634.06 ms. Allocated memory was 136.8 MB in the beginning and 1.1 GB in the end (delta: 913.8 MB). Free memory was 99.1 MB in the beginning and 612.6 MB in the end (delta: -513.5 MB). Peak memory consumption was 400.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:16:28,168 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 15:16:28,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.34 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 98.9 MB in the beginning and 170.7 MB in the end (delta: -71.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:16:28,169 INFO L168 Benchmark]: Boogie Preprocessor took 81.50 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 166.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:16:28,169 INFO L168 Benchmark]: RCFGBuilder took 1679.99 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 166.6 MB in the beginning and 146.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:16:28,170 INFO L168 Benchmark]: TraceAbstraction took 55130.71 ms. Allocated memory was 233.8 MB in the beginning and 1.1 GB in the end (delta: 816.8 MB). Free memory was 146.4 MB in the beginning and 612.6 MB in the end (delta: -466.2 MB). Peak memory consumption was 350.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:16:28,172 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.34 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 98.9 MB in the beginning and 170.7 MB in the end (delta: -71.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.50 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 166.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1679.99 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 166.6 MB in the beginning and 146.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55130.71 ms. Allocated memory was 233.8 MB in the beginning and 1.1 GB in the end (delta: 816.8 MB). Free memory was 146.4 MB in the beginning and 612.6 MB in the end (delta: -466.2 MB). Peak memory consumption was 350.7 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...