java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:19:33,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:19:33,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:19:33,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:19:33,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:19:33,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:19:33,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:19:33,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:19:33,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:19:33,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:19:33,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:19:33,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:19:33,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:19:33,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:19:33,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:19:33,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:19:33,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:19:33,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:19:33,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:19:33,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:19:33,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:19:33,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:19:33,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:19:33,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:19:33,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:19:33,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:19:33,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:19:33,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:19:33,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:19:33,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:19:33,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:19:33,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:19:33,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:19:33,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:19:33,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:19:33,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:19:33,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:19:33,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:19:33,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:19:33,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:19:33,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:19:33,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:19:33,410 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:19:33,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:19:33,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:19:33,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:19:33,412 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:19:33,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:19:33,412 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:19:33,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:19:33,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:19:33,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:19:33,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:19:33,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:19:33,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:19:33,414 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:19:33,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:19:33,415 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:19:33,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:19:33,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:19:33,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:19:33,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:19:33,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:19:33,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:19:33,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:19:33,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:19:33,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:19:33,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:19:33,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:19:33,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:19:33,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:19:33,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:19:33,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:19:33,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:19:33,723 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:19:33,723 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:19:33,724 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-10-13 23:19:33,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1824d5cc1/e7b27dae72c74d6187eb3f90cc06d69b/FLAGc2fa914d8 [2019-10-13 23:19:34,376 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:19:34,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-10-13 23:19:34,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1824d5cc1/e7b27dae72c74d6187eb3f90cc06d69b/FLAGc2fa914d8 [2019-10-13 23:19:34,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1824d5cc1/e7b27dae72c74d6187eb3f90cc06d69b [2019-10-13 23:19:34,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:19:34,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:19:34,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:34,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:19:34,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:19:34,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1dcce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34, skipping insertion in model container [2019-10-13 23:19:34,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,680 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:19:34,729 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:19:35,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:35,172 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:19:35,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:35,336 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:19:35,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35 WrapperNode [2019-10-13 23:19:35,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:35,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:19:35,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:19:35,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:19:35,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... [2019-10-13 23:19:35,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:19:35,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:19:35,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:19:35,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:19:35,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:19:35,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:19:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:19:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:19:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:19:35,506 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:19:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:19:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:19:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:19:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:19:35,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:19:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:19:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:19:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:19:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:19:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:19:35,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:19:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:19:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:19:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:19:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:19:35,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:19:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:19:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:19:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:19:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:19:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:19:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:19:35,511 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:19:35,511 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:19:35,511 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2019-10-13 23:19:35,511 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2019-10-13 23:19:35,511 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2019-10-13 23:19:35,511 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2019-10-13 23:19:35,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2019-10-13 23:19:35,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2019-10-13 23:19:35,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:19:35,512 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2019-10-13 23:19:35,512 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2019-10-13 23:19:35,512 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:19:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:19:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:19:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:19:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:19:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:19:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:19:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:19:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:19:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:19:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:19:35,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:19:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:19:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:19:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:19:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:19:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:19:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:19:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:19:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:19:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:19:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:19:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:19:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:19:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:19:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:19:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:19:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:19:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:19:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:19:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:19:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:19:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:19:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:19:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:19:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:19:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:19:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:19:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:19:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:19:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:19:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:19:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:19:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:19:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:19:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:19:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:19:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:19:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:19:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:19:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:19:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:19:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:19:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:19:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:19:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:19:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:19:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:19:35,522 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:19:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:19:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:19:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:19:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2019-10-13 23:19:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:19:35,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2019-10-13 23:19:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2019-10-13 23:19:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:19:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2019-10-13 23:19:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2019-10-13 23:19:35,524 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:19:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2019-10-13 23:19:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2019-10-13 23:19:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2019-10-13 23:19:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:19:35,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:19:35,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:19:37,381 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:19:37,382 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:19:37,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:37 BoogieIcfgContainer [2019-10-13 23:19:37,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:19:37,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:19:37,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:19:37,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:19:37,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:19:34" (1/3) ... [2019-10-13 23:19:37,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d56746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:37, skipping insertion in model container [2019-10-13 23:19:37,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:35" (2/3) ... [2019-10-13 23:19:37,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d56746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:37, skipping insertion in model container [2019-10-13 23:19:37,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:37" (3/3) ... [2019-10-13 23:19:37,399 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2019-10-13 23:19:37,412 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:19:37,424 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:19:37,436 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:19:37,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:19:37,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:19:37,477 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:19:37,478 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:19:37,481 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:19:37,481 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:19:37,482 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:19:37,482 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:19:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2019-10-13 23:19:37,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 23:19:37,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:37,539 INFO L380 BasicCegarLoop]: trace histogram [6, 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] [2019-10-13 23:19:37,541 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:37,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:37,556 INFO L82 PathProgramCache]: Analyzing trace with hash 405742149, now seen corresponding path program 1 times [2019-10-13 23:19:37,565 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:37,565 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507374592] [2019-10-13 23:19:37,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:19:38,057 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507374592] [2019-10-13 23:19:38,058 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:19:38,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546516424] [2019-10-13 23:19:38,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:19:38,066 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:19:38,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:38,084 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2019-10-13 23:19:38,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:38,167 INFO L93 Difference]: Finished difference Result 348 states and 438 transitions. [2019-10-13 23:19:38,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:19:38,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 76 [2019-10-13 23:19:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:38,202 INFO L225 Difference]: With dead ends: 348 [2019-10-13 23:19:38,202 INFO L226 Difference]: Without dead ends: 183 [2019-10-13 23:19:38,219 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:38,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-10-13 23:19:38,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-10-13 23:19:38,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-10-13 23:19:38,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 224 transitions. [2019-10-13 23:19:38,349 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 224 transitions. Word has length 76 [2019-10-13 23:19:38,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:38,351 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 224 transitions. [2019-10-13 23:19:38,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:19:38,352 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 224 transitions. [2019-10-13 23:19:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-13 23:19:38,366 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:38,366 INFO L380 BasicCegarLoop]: trace histogram [6, 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] [2019-10-13 23:19:38,367 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:38,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1660428068, now seen corresponding path program 1 times [2019-10-13 23:19:38,370 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:38,370 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812887972] [2019-10-13 23:19:38,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:19:38,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812887972] [2019-10-13 23:19:38,614 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:19:38,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243780744] [2019-10-13 23:19:38,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:38,619 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:38,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:38,620 INFO L87 Difference]: Start difference. First operand 183 states and 224 transitions. Second operand 3 states. [2019-10-13 23:19:38,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:38,665 INFO L93 Difference]: Finished difference Result 294 states and 359 transitions. [2019-10-13 23:19:38,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:38,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-13 23:19:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:38,670 INFO L225 Difference]: With dead ends: 294 [2019-10-13 23:19:38,670 INFO L226 Difference]: Without dead ends: 175 [2019-10-13 23:19:38,672 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:38,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-13 23:19:38,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-13 23:19:38,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-13 23:19:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 213 transitions. [2019-10-13 23:19:38,692 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 213 transitions. Word has length 77 [2019-10-13 23:19:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:38,693 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 213 transitions. [2019-10-13 23:19:38,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 213 transitions. [2019-10-13 23:19:38,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-13 23:19:38,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:38,696 INFO L380 BasicCegarLoop]: trace histogram [6, 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] [2019-10-13 23:19:38,696 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:38,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:38,696 INFO L82 PathProgramCache]: Analyzing trace with hash -2063576827, now seen corresponding path program 1 times [2019-10-13 23:19:38,697 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:38,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168363404] [2019-10-13 23:19:38,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:19:38,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168363404] [2019-10-13 23:19:38,948 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,948 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:19:38,949 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774187877] [2019-10-13 23:19:38,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:19:38,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:19:38,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:19:38,951 INFO L87 Difference]: Start difference. First operand 175 states and 213 transitions. Second operand 9 states. [2019-10-13 23:19:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:40,371 INFO L93 Difference]: Finished difference Result 499 states and 622 transitions. [2019-10-13 23:19:40,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 23:19:40,372 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2019-10-13 23:19:40,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:40,377 INFO L225 Difference]: With dead ends: 499 [2019-10-13 23:19:40,378 INFO L226 Difference]: Without dead ends: 363 [2019-10-13 23:19:40,380 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:19:40,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-13 23:19:40,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 351. [2019-10-13 23:19:40,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-13 23:19:40,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 437 transitions. [2019-10-13 23:19:40,443 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 437 transitions. Word has length 81 [2019-10-13 23:19:40,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:40,444 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 437 transitions. [2019-10-13 23:19:40,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:19:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 437 transitions. [2019-10-13 23:19:40,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 23:19:40,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:40,447 INFO L380 BasicCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:40,447 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:40,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:40,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1406139330, now seen corresponding path program 1 times [2019-10-13 23:19:40,448 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:40,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448530221] [2019-10-13 23:19:40,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:40,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:40,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 23:19:40,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448530221] [2019-10-13 23:19:40,629 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:40,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:40,632 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463573507] [2019-10-13 23:19:40,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:40,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:40,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:40,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:40,635 INFO L87 Difference]: Start difference. First operand 351 states and 437 transitions. Second operand 7 states. [2019-10-13 23:19:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:41,633 INFO L93 Difference]: Finished difference Result 928 states and 1262 transitions. [2019-10-13 23:19:41,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:19:41,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2019-10-13 23:19:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:41,641 INFO L225 Difference]: With dead ends: 928 [2019-10-13 23:19:41,641 INFO L226 Difference]: Without dead ends: 616 [2019-10-13 23:19:41,646 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:19:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-13 23:19:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 559. [2019-10-13 23:19:41,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-10-13 23:19:41,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 709 transitions. [2019-10-13 23:19:41,762 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 709 transitions. Word has length 86 [2019-10-13 23:19:41,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:41,762 INFO L462 AbstractCegarLoop]: Abstraction has 559 states and 709 transitions. [2019-10-13 23:19:41,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 709 transitions. [2019-10-13 23:19:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:19:41,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:41,766 INFO L380 BasicCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:41,767 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:41,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1497411186, now seen corresponding path program 1 times [2019-10-13 23:19:41,768 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:41,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286150750] [2019-10-13 23:19:41,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:41,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:41,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:19:42,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286150750] [2019-10-13 23:19:42,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:42,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:19:42,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613044230] [2019-10-13 23:19:42,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:19:42,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:42,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:19:42,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:19:42,086 INFO L87 Difference]: Start difference. First operand 559 states and 709 transitions. Second operand 14 states. [2019-10-13 23:19:43,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:43,937 INFO L93 Difference]: Finished difference Result 1584 states and 2094 transitions. [2019-10-13 23:19:43,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 23:19:43,938 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 114 [2019-10-13 23:19:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:43,948 INFO L225 Difference]: With dead ends: 1584 [2019-10-13 23:19:43,948 INFO L226 Difference]: Without dead ends: 1064 [2019-10-13 23:19:43,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:19:43,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2019-10-13 23:19:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1042. [2019-10-13 23:19:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-10-13 23:19:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1358 transitions. [2019-10-13 23:19:44,061 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1358 transitions. Word has length 114 [2019-10-13 23:19:44,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:44,062 INFO L462 AbstractCegarLoop]: Abstraction has 1042 states and 1358 transitions. [2019-10-13 23:19:44,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:19:44,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1358 transitions. [2019-10-13 23:19:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-13 23:19:44,071 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:44,071 INFO L380 BasicCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:44,073 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:44,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:44,074 INFO L82 PathProgramCache]: Analyzing trace with hash 600472367, now seen corresponding path program 1 times [2019-10-13 23:19:44,074 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:44,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200320459] [2019-10-13 23:19:44,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:44,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:44,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:19:44,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200320459] [2019-10-13 23:19:44,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:44,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:19:44,293 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401539284] [2019-10-13 23:19:44,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:19:44,295 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:44,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:19:44,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:19:44,295 INFO L87 Difference]: Start difference. First operand 1042 states and 1358 transitions. Second operand 9 states. [2019-10-13 23:19:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:45,818 INFO L93 Difference]: Finished difference Result 3312 states and 4435 transitions. [2019-10-13 23:19:45,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:19:45,819 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2019-10-13 23:19:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:45,836 INFO L225 Difference]: With dead ends: 3312 [2019-10-13 23:19:45,837 INFO L226 Difference]: Without dead ends: 2517 [2019-10-13 23:19:45,841 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:45,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2019-10-13 23:19:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2187. [2019-10-13 23:19:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2187 states. [2019-10-13 23:19:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 2862 transitions. [2019-10-13 23:19:46,047 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 2862 transitions. Word has length 117 [2019-10-13 23:19:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:46,048 INFO L462 AbstractCegarLoop]: Abstraction has 2187 states and 2862 transitions. [2019-10-13 23:19:46,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:19:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 2862 transitions. [2019-10-13 23:19:46,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:19:46,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:46,053 INFO L380 BasicCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:46,054 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:46,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:46,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1485618468, now seen corresponding path program 1 times [2019-10-13 23:19:46,054 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:46,056 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697560942] [2019-10-13 23:19:46,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:46,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:46,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:19:46,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697560942] [2019-10-13 23:19:46,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574574501] [2019-10-13 23:19:46,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:19:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:46,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:19:46,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:19:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 23:19:46,568 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:19:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:19:46,978 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:19:46,978 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 4 [2019-10-13 23:19:46,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693206057] [2019-10-13 23:19:46,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:46,979 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:46,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:46,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:19:46,980 INFO L87 Difference]: Start difference. First operand 2187 states and 2862 transitions. Second operand 3 states. [2019-10-13 23:19:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:47,127 INFO L93 Difference]: Finished difference Result 4657 states and 6283 transitions. [2019-10-13 23:19:47,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:47,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-13 23:19:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:47,144 INFO L225 Difference]: With dead ends: 4657 [2019-10-13 23:19:47,145 INFO L226 Difference]: Without dead ends: 2509 [2019-10-13 23:19:47,153 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:19:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2019-10-13 23:19:47,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2509. [2019-10-13 23:19:47,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2509 states. [2019-10-13 23:19:47,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3269 transitions. [2019-10-13 23:19:47,311 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3269 transitions. Word has length 163 [2019-10-13 23:19:47,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:47,312 INFO L462 AbstractCegarLoop]: Abstraction has 2509 states and 3269 transitions. [2019-10-13 23:19:47,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:47,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3269 transitions. [2019-10-13 23:19:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 23:19:47,319 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:47,319 INFO L380 BasicCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:47,526 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:19:47,526 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:47,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:47,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1870702604, now seen corresponding path program 1 times [2019-10-13 23:19:47,527 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:47,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535461824] [2019-10-13 23:19:47,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:47,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:47,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 23:19:47,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535461824] [2019-10-13 23:19:47,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976655699] [2019-10-13 23:19:47,727 INFO L94 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 [2019-10-13 23:19:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:48,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:19:48,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:19:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 28 proven. 17 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 23:19:48,192 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:19:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 23:19:48,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1909941389] [2019-10-13 23:19:48,632 INFO L162 IcfgInterpreter]: Started Sifa with 116 locations of interest [2019-10-13 23:19:48,633 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:19:48,640 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:19:48,648 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:19:48,648 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:19:59,706 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 482 [2019-10-13 23:20:01,174 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:20:01,352 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 490 [2019-10-13 23:20:01,546 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 490 [2019-10-13 23:20:01,719 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 490 [2019-10-13 23:20:02,017 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:02,255 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:02,526 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:02,739 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:03,039 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 576 [2019-10-13 23:20:03,191 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:03,361 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:03,486 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:03,620 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:03,842 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-13 23:20:03,855 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 211 for LOIs [2019-10-13 23:20:04,101 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-13 23:20:04,102 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 582 for LOIs [2019-10-13 23:20:04,215 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-13 23:20:04,340 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-13 23:20:04,549 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:04,676 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-13 23:20:04,792 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-13 23:20:04,977 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:05,145 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:05,305 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:05,487 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:05,729 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 630 DAG size of output: 584 [2019-10-13 23:20:05,847 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:06,049 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:06,173 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:06,295 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:06,467 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:06,582 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:06,744 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:06,917 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:07,032 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:07,148 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:07,318 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:07,435 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:07,577 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:07,747 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:07,862 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:07,977 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:08,146 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:08,262 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:08,397 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:08,611 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:08,727 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:08,844 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:09,014 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:09,131 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:09,246 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:09,442 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:09,558 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:09,676 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-13 23:20:09,846 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-13 23:20:10,150 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:20:10,151 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: CallReturnSummary for callee select_one at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) 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: CallReturnSummary for callee select_one 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.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:102) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-13 23:20:10,159 INFO L168 Benchmark]: Toolchain (without parser) took 35492.45 ms. Allocated memory was 139.5 MB in the beginning and 960.5 MB in the end (delta: 821.0 MB). Free memory was 102.6 MB in the beginning and 546.4 MB in the end (delta: -443.8 MB). Peak memory consumption was 377.2 MB. Max. memory is 7.1 GB. [2019-10-13 23:20:10,167 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 23:20:10,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.72 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 167.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-10-13 23:20:10,168 INFO L168 Benchmark]: Boogie Preprocessor took 94.53 ms. Allocated memory is still 203.4 MB. Free memory was 167.1 MB in the beginning and 162.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-10-13 23:20:10,173 INFO L168 Benchmark]: RCFGBuilder took 1952.62 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 162.0 MB in the beginning and 131.6 MB in the end (delta: 30.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2019-10-13 23:20:10,174 INFO L168 Benchmark]: TraceAbstraction took 32770.79 ms. Allocated memory was 236.5 MB in the beginning and 960.5 MB in the end (delta: 724.0 MB). Free memory was 131.6 MB in the beginning and 546.4 MB in the end (delta: -414.8 MB). Peak memory consumption was 309.2 MB. Max. memory is 7.1 GB. [2019-10-13 23:20:10,182 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.72 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 167.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.53 ms. Allocated memory is still 203.4 MB. Free memory was 167.1 MB in the beginning and 162.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1952.62 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 162.0 MB in the beginning and 131.6 MB in the end (delta: 30.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32770.79 ms. Allocated memory was 236.5 MB in the beginning and 960.5 MB in the end (delta: 724.0 MB). Free memory was 131.6 MB in the beginning and 546.4 MB in the end (delta: -414.8 MB). Peak memory consumption was 309.2 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: CallReturnSummary for callee select_one de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee select_one: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...