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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:20:52,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:20:52,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:20:52,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:20:52,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:20:52,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:20:52,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:20:52,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:20:52,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:20:52,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:20:52,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:20:52,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:20:52,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:20:52,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:20:52,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:20:52,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:20:52,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:20:52,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:20:52,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:20:52,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:20:52,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:20:52,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:20:52,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:20:52,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:20:52,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:20:52,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:20:52,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:20:52,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:20:52,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:20:52,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:20:52,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:20:52,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:20:52,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:20:52,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:20:52,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:20:52,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:20:52,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:20:52,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:20:52,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:20:52,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:20:52,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:20:52,300 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 15:20:52,315 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:20:52,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:20:52,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:20:52,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:20:52,317 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:20:52,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:20:52,317 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:20:52,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:20:52,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:20:52,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:20:52,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:20:52,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:20:52,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:20:52,318 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:20:52,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:20:52,319 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:20:52,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:20:52,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:20:52,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:20:52,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:20:52,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:20:52,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:20:52,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:20:52,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:20:52,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:20:52,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:20:52,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:20:52,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:20:52,322 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 15:20:52,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:20:52,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:20:52,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:20:52,695 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:20:52,696 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:20:52,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-10-07 15:20:52,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1d4bb8d/427a2e520c8c4991b416138b15f70e01/FLAG68bf2ff4c [2019-10-07 15:20:53,353 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:20:53,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-10-07 15:20:53,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1d4bb8d/427a2e520c8c4991b416138b15f70e01/FLAG68bf2ff4c [2019-10-07 15:20:53,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1d4bb8d/427a2e520c8c4991b416138b15f70e01 [2019-10-07 15:20:53,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:20:53,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:20:53,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:53,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:20:53,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:20:53,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:53" (1/1) ... [2019-10-07 15:20:53,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e20f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:53, skipping insertion in model container [2019-10-07 15:20:53,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:53" (1/1) ... [2019-10-07 15:20:53,661 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:20:53,738 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:20:54,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:54,302 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:20:54,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:54,437 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:20:54,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54 WrapperNode [2019-10-07 15:20:54,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:54,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:20:54,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:20:54,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:20:54,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (1/1) ... [2019-10-07 15:20:54,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:20:54,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:20:54,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:20:54,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:20:54,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (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 15:20:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:20:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:20:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:20:54,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:20:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:20:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:20:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:20:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:20:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:20:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:20:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:20:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:20:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:20:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:20:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:20:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:20:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:20:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:20:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:20:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:20:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:20:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:20:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:20:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:20:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:20:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:20:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:20:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:20:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:20:54,622 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:20:54,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:54,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:54,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:54,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:20:54,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:20:54,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:20:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:20:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:20:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:20:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:20:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:20:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:20:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:20:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:20:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:20:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:20:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:20:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:20:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:20:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:20:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:20:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:20:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:20:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:20:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:20:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:20:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:20:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:20:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:20:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:20:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:20:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:20:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:20:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:20:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:20:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:20:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:20:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:20:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:20:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:20:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:20:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:20:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:20:54,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:20:54,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:20:54,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:54,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:20:54,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:54,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:54,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:20:54,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:20:54,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:20:54,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:20:54,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:20:54,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:20:54,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:20:56,328 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:20:56,329 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:20:56,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:56 BoogieIcfgContainer [2019-10-07 15:20:56,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:20:56,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:20:56,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:20:56,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:20:56,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:20:53" (1/3) ... [2019-10-07 15:20:56,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efcf2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:56, skipping insertion in model container [2019-10-07 15:20:56,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:54" (2/3) ... [2019-10-07 15:20:56,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efcf2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:56, skipping insertion in model container [2019-10-07 15:20:56,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:56" (3/3) ... [2019-10-07 15:20:56,339 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2019-10-07 15:20:56,349 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:20:56,361 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:20:56,373 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:20:56,408 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:20:56,408 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:20:56,409 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:20:56,409 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:20:56,409 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:20:56,409 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:20:56,409 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:20:56,409 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:20:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-10-07 15:20:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:20:56,446 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:56,448 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] [2019-10-07 15:20:56,450 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:56,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:56,457 INFO L82 PathProgramCache]: Analyzing trace with hash 859758513, now seen corresponding path program 1 times [2019-10-07 15:20:56,466 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:56,467 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:56,467 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:56,467 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:56,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:56,845 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:56,846 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:56,850 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:20:56,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:20:56,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:20:56,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:20:56,873 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2019-10-07 15:20:56,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:56,935 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-10-07 15:20:56,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:20:56,937 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:20:56,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:56,950 INFO L225 Difference]: With dead ends: 224 [2019-10-07 15:20:56,951 INFO L226 Difference]: Without dead ends: 114 [2019-10-07 15:20:56,956 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 15:20:56,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-07 15:20:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-07 15:20:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-07 15:20:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-10-07 15:20:57,014 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 52 [2019-10-07 15:20:57,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:57,015 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-10-07 15:20:57,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:20:57,015 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-10-07 15:20:57,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-07 15:20:57,019 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:57,019 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] [2019-10-07 15:20:57,019 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:57,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:57,020 INFO L82 PathProgramCache]: Analyzing trace with hash 194581830, now seen corresponding path program 1 times [2019-10-07 15:20:57,020 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:57,020 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:57,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,021 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:57,256 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:57,256 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:57,256 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:20:57,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:20:57,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:20:57,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:20:57,261 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 7 states. [2019-10-07 15:20:57,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:57,670 INFO L93 Difference]: Finished difference Result 203 states and 238 transitions. [2019-10-07 15:20:57,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:20:57,671 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-07 15:20:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:57,676 INFO L225 Difference]: With dead ends: 203 [2019-10-07 15:20:57,676 INFO L226 Difference]: Without dead ends: 114 [2019-10-07 15:20:57,679 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:20:57,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-07 15:20:57,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-07 15:20:57,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-07 15:20:57,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2019-10-07 15:20:57,713 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 55 [2019-10-07 15:20:57,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:57,718 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2019-10-07 15:20:57,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:20:57,719 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2019-10-07 15:20:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-07 15:20:57,727 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:57,729 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] [2019-10-07 15:20:57,730 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:57,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:57,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1019805163, now seen corresponding path program 1 times [2019-10-07 15:20:57,731 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:57,731 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:57,731 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,731 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:57,901 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:57,902 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:57,902 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:20:57,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:20:57,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:20:57,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:20:57,907 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand 3 states. [2019-10-07 15:20:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:57,940 INFO L93 Difference]: Finished difference Result 182 states and 206 transitions. [2019-10-07 15:20:57,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:20:57,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-10-07 15:20:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:57,945 INFO L225 Difference]: With dead ends: 182 [2019-10-07 15:20:57,946 INFO L226 Difference]: Without dead ends: 106 [2019-10-07 15:20:57,948 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 15:20:57,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-07 15:20:57,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-07 15:20:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-07 15:20:57,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-10-07 15:20:57,980 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 66 [2019-10-07 15:20:57,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:57,983 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-10-07 15:20:57,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:20:57,983 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-10-07 15:20:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-07 15:20:57,988 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:57,989 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] [2019-10-07 15:20:57,989 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:57,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1392855685, now seen corresponding path program 1 times [2019-10-07 15:20:57,990 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:57,990 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:57,990 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,990 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:57,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:58,157 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,158 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:58,159 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:20:58,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:20:58,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:20:58,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:20:58,161 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-10-07 15:20:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:58,642 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2019-10-07 15:20:58,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:20:58,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-10-07 15:20:58,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:58,645 INFO L225 Difference]: With dead ends: 275 [2019-10-07 15:20:58,645 INFO L226 Difference]: Without dead ends: 194 [2019-10-07 15:20:58,648 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 15:20:58,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-10-07 15:20:58,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 179. [2019-10-07 15:20:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-07 15:20:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-10-07 15:20:58,676 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 68 [2019-10-07 15:20:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:58,677 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-10-07 15:20:58,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:20:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-10-07 15:20:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 15:20:58,678 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:58,678 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] [2019-10-07 15:20:58,679 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:58,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1888393877, now seen corresponding path program 1 times [2019-10-07 15:20:58,679 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:58,680 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:58,918 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:58,918 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:58,918 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:20:58,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:20:58,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:20:58,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:20:58,920 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 12 states. [2019-10-07 15:20:59,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:59,801 INFO L93 Difference]: Finished difference Result 475 states and 543 transitions. [2019-10-07 15:20:59,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:20:59,802 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2019-10-07 15:20:59,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:59,807 INFO L225 Difference]: With dead ends: 475 [2019-10-07 15:20:59,807 INFO L226 Difference]: Without dead ends: 321 [2019-10-07 15:20:59,808 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:20:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-10-07 15:20:59,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2019-10-07 15:20:59,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-10-07 15:20:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 352 transitions. [2019-10-07 15:20:59,840 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 352 transitions. Word has length 77 [2019-10-07 15:20:59,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:59,841 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 352 transitions. [2019-10-07 15:20:59,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:20:59,841 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 352 transitions. [2019-10-07 15:20:59,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 15:20:59,842 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:59,843 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] [2019-10-07 15:20:59,843 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:59,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:59,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1194579199, now seen corresponding path program 1 times [2019-10-07 15:20:59,844 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:59,844 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,844 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,844 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:20:59,988 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:59,988 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:59,988 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:20:59,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:20:59,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:20:59,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:20:59,990 INFO L87 Difference]: Start difference. First operand 309 states and 352 transitions. Second operand 7 states. [2019-10-07 15:21:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:00,594 INFO L93 Difference]: Finished difference Result 617 states and 725 transitions. [2019-10-07 15:21:00,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:21:00,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-10-07 15:21:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:00,598 INFO L225 Difference]: With dead ends: 617 [2019-10-07 15:21:00,598 INFO L226 Difference]: Without dead ends: 333 [2019-10-07 15:21:00,600 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:21:00,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-10-07 15:21:00,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 306. [2019-10-07 15:21:00,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-07 15:21:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 343 transitions. [2019-10-07 15:21:00,630 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 343 transitions. Word has length 77 [2019-10-07 15:21:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:00,630 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 343 transitions. [2019-10-07 15:21:00,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:21:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 343 transitions. [2019-10-07 15:21:00,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-07 15:21:00,632 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:00,633 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] [2019-10-07 15:21:00,633 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:00,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:00,633 INFO L82 PathProgramCache]: Analyzing trace with hash 592950339, now seen corresponding path program 1 times [2019-10-07 15:21:00,634 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:00,634 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:00,634 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:00,634 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:00,792 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:00,792 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:00,793 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:21:00,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:21:00,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:21:00,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:21:00,794 INFO L87 Difference]: Start difference. First operand 306 states and 343 transitions. Second operand 9 states. [2019-10-07 15:21:01,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:01,652 INFO L93 Difference]: Finished difference Result 931 states and 1073 transitions. [2019-10-07 15:21:01,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:21:01,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2019-10-07 15:21:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:01,658 INFO L225 Difference]: With dead ends: 931 [2019-10-07 15:21:01,658 INFO L226 Difference]: Without dead ends: 707 [2019-10-07 15:21:01,660 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:21:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-07 15:21:01,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 610. [2019-10-07 15:21:01,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-10-07 15:21:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 691 transitions. [2019-10-07 15:21:01,708 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 691 transitions. Word has length 80 [2019-10-07 15:21:01,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:01,709 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 691 transitions. [2019-10-07 15:21:01,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:21:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 691 transitions. [2019-10-07 15:21:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 15:21:01,711 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:01,711 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:01,711 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:01,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:01,712 INFO L82 PathProgramCache]: Analyzing trace with hash 183080203, now seen corresponding path program 1 times [2019-10-07 15:21:01,712 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:01,712 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,712 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:21:01,905 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:01,905 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:21:01,905 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 15:21:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:02,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:21:02,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:21:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:21:02,369 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:21:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 15:21:02,760 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:21:02,791 INFO L162 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-10-07 15:21:02,791 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:21:02,799 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:21:02,809 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:21:02,810 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:21:10,328 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:21:12,122 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:21:12,249 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:12,380 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:12,496 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:21:12,830 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:13,112 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:13,348 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:13,626 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:14,038 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:21:14,219 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:14,419 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:14,595 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:14,702 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:14,813 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:21:14,822 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:21:15,136 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-07 15:21:15,137 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:21:15,276 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:15,391 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:15,522 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:15,651 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:15,793 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:15,927 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:16,056 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:16,165 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:16,329 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:16,610 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-07 15:21:16,730 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:16,934 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:17,071 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:17,216 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:17,337 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:17,441 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:17,671 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:17,897 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,017 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:18,333 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:18,542 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,687 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:18,799 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:18,908 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:19,028 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:19,361 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:19,678 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:19,881 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:21:20,000 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:20,138 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:20,280 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:20,441 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:20,708 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:20,818 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:20,945 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:21,054 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:21,177 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:21,296 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:21,427 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,539 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,664 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:21,937 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:22,048 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:22,196 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,414 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:22,526 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:22,648 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:22,762 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:22,874 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:23,005 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,117 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,234 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,363 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:23,497 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,608 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:23,730 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:23,954 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:21:24,066 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,223 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:24,346 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,458 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:24,587 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:24,820 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:24,930 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:25,055 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:25,257 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:25,370 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:25,508 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:25,618 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:25,729 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:25,848 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:25,993 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:26,106 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:26,230 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:26,468 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:26,581 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:26,711 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:26,912 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:27,045 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:27,167 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:27,364 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:21:27,485 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:27,618 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:27,813 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:21:27,927 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:28,058 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:28,272 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:28,382 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:28,503 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:28,724 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:28,835 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:28,965 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:29,075 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:29,187 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:29,307 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:29,526 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:29,637 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:29,765 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:29,968 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:30,078 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:30,206 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:30,316 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:30,427 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:30,547 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:30,674 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:30,786 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:30,930 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,062 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,174 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,300 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,412 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,524 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,647 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:31,846 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:31,956 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:32,083 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,283 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:21:32,394 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:32,523 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:32,789 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:21:32,900 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,024 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:33,228 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:21:33,343 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:33,466 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:33,674 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:33,783 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:33,904 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:34,170 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:34,279 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:34,399 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:34,511 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:34,621 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:34,739 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:35,202 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:35,336 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:35,460 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:35,652 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:35,763 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:35,894 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:36,082 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:36,193 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:36,313 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:36,508 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:21:36,620 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:36,742 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:36,950 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:37,063 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:37,189 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:37,387 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:37,496 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:37,616 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:37,734 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:37,844 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:37,962 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:38,161 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:38,280 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:38,404 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,606 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:21:38,718 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:38,845 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:39,056 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:39,168 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:39,290 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:39,494 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:39,605 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:39,725 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:39,933 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:40,043 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:40,164 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:40,361 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:21:40,472 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:40,598 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:40,708 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:40,818 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:40,936 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:41,136 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:41,248 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:41,372 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:41,563 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:21:41,674 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:41,800 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:41,997 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 562 [2019-10-07 15:21:42,107 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:21:42,228 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,422 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:21:42,536 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,662 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:42,875 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:21:42,990 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:43,122 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:21:43,125 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:21:43,441 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:43,561 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:43,663 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:43,785 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:43,962 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 548 [2019-10-07 15:21:44,185 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:44,288 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:44,508 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:44,514 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 548 for LOIs [2019-10-07 15:21:44,617 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:21:44,837 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:21:44,953 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:45,056 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:45,180 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,290 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:45,392 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:21:45,516 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:21:45,627 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:21:45,732 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:21:45,856 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:21:45,969 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:21:46,074 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:21:46,200 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:21:46,345 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:46,628 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:47,091 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 579 [2019-10-07 15:21:47,332 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2019-10-07 15:21:47,625 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:47,969 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:48,088 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:48,371 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:48,696 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:48,804 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:49,081 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:49,407 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:49,518 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:49,799 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:50,123 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:50,232 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:50,508 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:50,839 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:50,947 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:51,222 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:51,545 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:51,654 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:51,931 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:52,278 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:52,387 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:52,664 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:52,993 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:53,110 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:53,395 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:53,722 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:53,830 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:54,108 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:54,432 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:54,540 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:54,823 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:21:55,152 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:21:55,530 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:55,968 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:56,392 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:56,821 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:57,244 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:57,666 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:58,080 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:58,514 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:58,946 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:59,367 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:21:59,802 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:22:00,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:22:00,090 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: ε 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: ε 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.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 15:22:00,097 INFO L168 Benchmark]: Toolchain (without parser) took 66458.31 ms. Allocated memory was 142.6 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 99.3 MB in the beginning and 169.6 MB in the end (delta: -70.3 MB). Peak memory consumption was 964.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:00,097 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:22:00,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.93 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 99.1 MB in the beginning and 166.6 MB in the end (delta: -67.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:00,098 INFO L168 Benchmark]: Boogie Preprocessor took 111.87 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 162.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:00,098 INFO L168 Benchmark]: RCFGBuilder took 1779.99 ms. Allocated memory was 200.8 MB in the beginning and 229.1 MB in the end (delta: 28.3 MB). Free memory was 162.3 MB in the beginning and 144.6 MB in the end (delta: 17.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:00,099 INFO L168 Benchmark]: TraceAbstraction took 63762.83 ms. Allocated memory was 229.1 MB in the beginning and 1.2 GB in the end (delta: 947.9 MB). Free memory was 144.6 MB in the beginning and 169.6 MB in the end (delta: -25.0 MB). Peak memory consumption was 922.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:00,100 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.93 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 99.1 MB in the beginning and 166.6 MB in the end (delta: -67.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.87 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 162.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1779.99 ms. Allocated memory was 200.8 MB in the beginning and 229.1 MB in the end (delta: 28.3 MB). Free memory was 162.3 MB in the beginning and 144.6 MB in the end (delta: 17.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 63762.83 ms. Allocated memory was 229.1 MB in the beginning and 1.2 GB in the end (delta: 947.9 MB). Free memory was 144.6 MB in the beginning and 169.6 MB in the end (delta: -25.0 MB). Peak memory consumption was 922.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: 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...