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_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:22:46,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:22:46,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:22:46,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:22:46,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:22:46,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:22:46,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:22:46,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:22:46,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:22:46,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:22:46,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:22:46,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:22:46,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:22:46,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:22:46,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:22:46,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:22:46,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:22:46,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:22:46,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:22:46,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:22:46,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:22:46,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:22:46,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:22:46,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:22:46,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:22:46,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:22:46,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:22:46,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:22:46,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:22:46,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:22:46,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:22:46,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:22:46,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:22:46,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:22:46,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:22:46,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:22:46,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:22:46,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:22:46,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:22:46,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:22:46,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:22:46,389 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 15:22:46,414 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:22:46,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:22:46,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:22:46,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:22:46,416 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:22:46,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:22:46,417 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:22:46,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:22:46,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:22:46,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:22:46,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:22:46,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:22:46,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:22:46,419 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:22:46,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:22:46,419 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:22:46,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:22:46,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:22:46,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:22:46,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:22:46,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:22:46,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:22:46,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:22:46,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:22:46,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:22:46,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:22:46,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:22:46,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:22:46,422 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 15:22:46,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:22:46,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:22:46,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:22:46,720 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:22:46,721 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:22:46,721 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-07 15:22:46,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba8587b1/90692a7aaf3c4098916a17aa1e454564/FLAG4b790393f [2019-10-07 15:22:47,349 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:22:47,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2019-10-07 15:22:47,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba8587b1/90692a7aaf3c4098916a17aa1e454564/FLAG4b790393f [2019-10-07 15:22:47,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dba8587b1/90692a7aaf3c4098916a17aa1e454564 [2019-10-07 15:22:47,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:22:47,660 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:22:47,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:22:47,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:22:47,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:22:47,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:22:47" (1/1) ... [2019-10-07 15:22:47,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:47, skipping insertion in model container [2019-10-07 15:22:47,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:22:47" (1/1) ... [2019-10-07 15:22:47,673 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:22:47,727 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:22:48,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:22:48,188 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:22:48,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:22:48,388 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:22:48,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48 WrapperNode [2019-10-07 15:22:48,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:22:48,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:22:48,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:22:48,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:22:48,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (1/1) ... [2019-10-07 15:22:48,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (1/1) ... [2019-10-07 15:22:48,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (1/1) ... [2019-10-07 15:22:48,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (1/1) ... [2019-10-07 15:22:48,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (1/1) ... [2019-10-07 15:22:48,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (1/1) ... [2019-10-07 15:22:48,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (1/1) ... [2019-10-07 15:22:48,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:22:48,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:22:48,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:22:48,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:22:48,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (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 15:22:48,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:22:48,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:22:48,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:22:48,583 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:22:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:22:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:22:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:22:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:22:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:22:48,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:22:48,585 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:22:48,585 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:22:48,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:22:48,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:22:48,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:22:48,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:22:48,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:22:48,586 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:22:48,586 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:22:48,586 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:22:48,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:22:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:22:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:22:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:22:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:22:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:22:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:22:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:22:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:22:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:22:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:22:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:22:48,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:22:48,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:22:48,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:22:48,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:22:48,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:22:48,589 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:22:48,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:22:48,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:22:48,590 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:22:48,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:22:48,590 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:22:48,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:22:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:22:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:22:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:22:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:22:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:22:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:22:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:22:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:22:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:22:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:22:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:22:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:22:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:22:48,592 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:22:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:22:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:22:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:22:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:22:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:22:48,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:22:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:22:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:22:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:22:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:22:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:22:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:22:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:22:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:22:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:22:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:22:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:22:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:22:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:22:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:22:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:22:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:22:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:22:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:22:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:22:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:22:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:22:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:22:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:22:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:22:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:22:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:22:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:22:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:22:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:22:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:22:48,598 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:22:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:22:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:22:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:22:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:22:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:22:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:22:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:22:50,268 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:22:50,269 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:22:50,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:22:50 BoogieIcfgContainer [2019-10-07 15:22:50,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:22:50,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:22:50,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:22:50,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:22:50,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:22:47" (1/3) ... [2019-10-07 15:22:50,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5c25e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:22:50, skipping insertion in model container [2019-10-07 15:22:50,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:22:48" (2/3) ... [2019-10-07 15:22:50,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5c25e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:22:50, skipping insertion in model container [2019-10-07 15:22:50,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:22:50" (3/3) ... [2019-10-07 15:22:50,279 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-10-07 15:22:50,289 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:22:50,297 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:22:50,308 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:22:50,335 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:22:50,335 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:22:50,336 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:22:50,336 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:22:50,336 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:22:50,336 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:22:50,336 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:22:50,337 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:22:50,359 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2019-10-07 15:22:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:22:50,369 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:50,370 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 15:22:50,372 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:50,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:50,379 INFO L82 PathProgramCache]: Analyzing trace with hash 842087760, now seen corresponding path program 1 times [2019-10-07 15:22:50,387 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:50,387 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:50,388 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:50,388 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:50,744 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 15:22:50,745 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:50,746 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:50,746 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:22:50,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:22:50,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:22:50,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:22:50,778 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2019-10-07 15:22:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:50,838 INFO L93 Difference]: Finished difference Result 270 states and 327 transitions. [2019-10-07 15:22:50,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:22:50,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:22:50,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:50,854 INFO L225 Difference]: With dead ends: 270 [2019-10-07 15:22:50,855 INFO L226 Difference]: Without dead ends: 137 [2019-10-07 15:22:50,860 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 15:22:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-07 15:22:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-10-07 15:22:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-07 15:22:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2019-10-07 15:22:50,934 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 52 [2019-10-07 15:22:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:50,935 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2019-10-07 15:22:50,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:22:50,935 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2019-10-07 15:22:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-07 15:22:50,945 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:50,945 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 15:22:50,946 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:50,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:50,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1118537415, now seen corresponding path program 1 times [2019-10-07 15:22:50,946 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:50,947 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:50,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:50,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:51,177 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 15:22:51,178 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:51,179 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:51,179 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:22:51,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:22:51,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:22:51,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:22:51,184 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 7 states. [2019-10-07 15:22:51,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:51,610 INFO L93 Difference]: Finished difference Result 249 states and 296 transitions. [2019-10-07 15:22:51,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:22:51,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-07 15:22:51,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:51,614 INFO L225 Difference]: With dead ends: 249 [2019-10-07 15:22:51,614 INFO L226 Difference]: Without dead ends: 137 [2019-10-07 15:22:51,616 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 15:22:51,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-10-07 15:22:51,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-10-07 15:22:51,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-07 15:22:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 158 transitions. [2019-10-07 15:22:51,635 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 158 transitions. Word has length 55 [2019-10-07 15:22:51,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:51,637 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 158 transitions. [2019-10-07 15:22:51,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 158 transitions. [2019-10-07 15:22:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-07 15:22:51,641 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:51,641 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] [2019-10-07 15:22:51,642 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:51,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1433403420, now seen corresponding path program 1 times [2019-10-07 15:22:51,642 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:51,642 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:51,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:51,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:51,782 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 15:22:51,783 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:51,783 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:51,783 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:22:51,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:22:51,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:22:51,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:22:51,785 INFO L87 Difference]: Start difference. First operand 137 states and 158 transitions. Second operand 3 states. [2019-10-07 15:22:51,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:51,799 INFO L93 Difference]: Finished difference Result 228 states and 264 transitions. [2019-10-07 15:22:51,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:22:51,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-10-07 15:22:51,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:51,801 INFO L225 Difference]: With dead ends: 228 [2019-10-07 15:22:51,802 INFO L226 Difference]: Without dead ends: 129 [2019-10-07 15:22:51,803 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 15:22:51,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-07 15:22:51,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-07 15:22:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-07 15:22:51,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2019-10-07 15:22:51,819 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 70 [2019-10-07 15:22:51,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:51,820 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2019-10-07 15:22:51,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:22:51,820 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2019-10-07 15:22:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-07 15:22:51,823 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:51,823 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] [2019-10-07 15:22:51,823 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:51,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:51,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1054835444, now seen corresponding path program 1 times [2019-10-07 15:22:51,824 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:51,824 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:51,824 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:51,824 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:51,967 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 15:22:51,968 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:51,969 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:51,970 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:22:51,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:22:51,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:22:51,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:22:51,971 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand 5 states. [2019-10-07 15:22:52,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:52,520 INFO L93 Difference]: Finished difference Result 337 states and 398 transitions. [2019-10-07 15:22:52,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:22:52,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-07 15:22:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:52,523 INFO L225 Difference]: With dead ends: 337 [2019-10-07 15:22:52,524 INFO L226 Difference]: Without dead ends: 233 [2019-10-07 15:22:52,525 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 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 15:22:52,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-10-07 15:22:52,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 218. [2019-10-07 15:22:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-10-07 15:22:52,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 241 transitions. [2019-10-07 15:22:52,557 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 241 transitions. Word has length 72 [2019-10-07 15:22:52,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:52,558 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 241 transitions. [2019-10-07 15:22:52,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:22:52,558 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 241 transitions. [2019-10-07 15:22:52,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 15:22:52,559 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:52,559 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:22:52,560 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:52,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:52,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1642495861, now seen corresponding path program 1 times [2019-10-07 15:22:52,560 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:52,560 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:52,561 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:52,561 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:52,694 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 15:22:52,695 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:52,695 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:52,695 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:22:52,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:22:52,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:22:52,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:22:52,696 INFO L87 Difference]: Start difference. First operand 218 states and 241 transitions. Second operand 7 states. [2019-10-07 15:22:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:53,374 INFO L93 Difference]: Finished difference Result 425 states and 483 transitions. [2019-10-07 15:22:53,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:22:53,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-10-07 15:22:53,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:53,377 INFO L225 Difference]: With dead ends: 425 [2019-10-07 15:22:53,378 INFO L226 Difference]: Without dead ends: 232 [2019-10-07 15:22:53,379 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:22:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-07 15:22:53,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2019-10-07 15:22:53,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-07 15:22:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 238 transitions. [2019-10-07 15:22:53,401 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 238 transitions. Word has length 82 [2019-10-07 15:22:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:53,402 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 238 transitions. [2019-10-07 15:22:53,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:22:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 238 transitions. [2019-10-07 15:22:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-07 15:22:53,404 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:53,404 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:22:53,404 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:53,404 INFO L82 PathProgramCache]: Analyzing trace with hash 960203345, now seen corresponding path program 1 times [2019-10-07 15:22:53,405 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:53,405 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:53,405 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:53,405 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:53,598 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 15:22:53,598 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:53,599 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:53,599 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:22:53,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:22:53,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:22:53,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:22:53,600 INFO L87 Difference]: Start difference. First operand 217 states and 238 transitions. Second operand 12 states. [2019-10-07 15:22:54,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:54,479 INFO L93 Difference]: Finished difference Result 556 states and 634 transitions. [2019-10-07 15:22:54,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:22:54,479 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2019-10-07 15:22:54,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:54,484 INFO L225 Difference]: With dead ends: 556 [2019-10-07 15:22:54,484 INFO L226 Difference]: Without dead ends: 364 [2019-10-07 15:22:54,485 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 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 15:22:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-07 15:22:54,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 355. [2019-10-07 15:22:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-07 15:22:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 401 transitions. [2019-10-07 15:22:54,519 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 401 transitions. Word has length 95 [2019-10-07 15:22:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:54,519 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 401 transitions. [2019-10-07 15:22:54,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:22:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 401 transitions. [2019-10-07 15:22:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-07 15:22:54,521 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:54,521 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:22:54,522 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:54,522 INFO L82 PathProgramCache]: Analyzing trace with hash -696143968, now seen corresponding path program 1 times [2019-10-07 15:22:54,522 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:54,522 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:54,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:54,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:54,779 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 15:22:54,780 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:54,781 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:22:54,781 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:22:54,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:22:54,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:22:54,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:22:54,783 INFO L87 Difference]: Start difference. First operand 355 states and 401 transitions. Second operand 9 states. [2019-10-07 15:22:55,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:22:55,735 INFO L93 Difference]: Finished difference Result 1095 states and 1273 transitions. [2019-10-07 15:22:55,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:22:55,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-07 15:22:55,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:22:55,741 INFO L225 Difference]: With dead ends: 1095 [2019-10-07 15:22:55,741 INFO L226 Difference]: Without dead ends: 827 [2019-10-07 15:22:55,743 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 15:22:55,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-10-07 15:22:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 725. [2019-10-07 15:22:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-10-07 15:22:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 825 transitions. [2019-10-07 15:22:55,798 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 825 transitions. Word has length 98 [2019-10-07 15:22:55,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:22:55,798 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 825 transitions. [2019-10-07 15:22:55,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:22:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 825 transitions. [2019-10-07 15:22:55,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 15:22:55,801 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:22:55,801 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:22:55,801 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:22:55,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:22:55,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1941303312, now seen corresponding path program 1 times [2019-10-07 15:22:55,802 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:22:55,802 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:55,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:55,803 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:22:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:22:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 15:22:55,959 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:22:55,959 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:22:55,959 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 15:22:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:22:56,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:22:56,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:22:56,487 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:22:56,488 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:22:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 15:22:56,961 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:22:56,990 INFO L162 IcfgInterpreter]: Started Sifa with 121 locations of interest [2019-10-07 15:22:56,990 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:22:56,997 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:22:57,005 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:22:57,005 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:23:04,013 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:23:05,599 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:23:05,772 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:23:05,909 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:23:06,022 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:23:06,296 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:06,485 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:06,652 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:06,833 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:07,140 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:23:07,288 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:07,438 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:07,540 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:07,655 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:07,798 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:23:07,810 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:23:08,095 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:23:08,204 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:08,307 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:08,467 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:08,681 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:08,869 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:08,994 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:09,123 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:09,252 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:09,468 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-07 15:23:09,593 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:09,729 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:09,846 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:10,064 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:10,300 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:10,435 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:10,750 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:10,960 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:11,079 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:11,283 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:11,401 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:11,631 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:23:11,748 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:12,059 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:12,385 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:12,696 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:12,822 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:12,930 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:13,049 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:13,317 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:13,426 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:13,569 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:13,677 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:13,785 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:13,903 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:14,055 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:14,173 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:14,294 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:14,417 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:14,528 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:14,783 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:15,253 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:15,384 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:15,555 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:15,672 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:15,786 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:15,916 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:16,027 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:16,137 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:16,282 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:16,413 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:16,525 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:16,647 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:16,848 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:23:16,958 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:17,090 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:17,200 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:17,310 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:17,459 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:17,714 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:17,822 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:17,944 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:18,148 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:18,255 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:18,379 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:18,489 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:18,596 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:18,713 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:18,836 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:18,946 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:19,069 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:19,283 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:19,397 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:19,533 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:19,728 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:19,837 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:19,955 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:20,187 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:23:20,297 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:20,421 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:20,613 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:23:20,729 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:20,853 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:21,066 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:21,174 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:21,294 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:21,501 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:21,609 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:21,731 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:21,839 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:21,947 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:22,063 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:22,267 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:22,375 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:22,497 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:22,700 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:22,807 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:22,926 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:23,034 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:23,142 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:23,258 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:23,473 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:23,582 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:23,723 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:23,837 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:23,959 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:24,081 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:24,266 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:24,373 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:24,492 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:24,678 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:24,788 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:24,909 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:25,103 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:23:25,223 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:25,347 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:25,653 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:23:25,763 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:25,894 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:26,093 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-07 15:23:26,204 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:26,326 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:26,527 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:26,635 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:26,752 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:26,950 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:27,059 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:27,179 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:27,288 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:27,411 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:27,527 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:27,891 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:28,000 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:28,120 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:28,240 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:28,350 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:28,473 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:28,681 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:28,790 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:28,908 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:29,120 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-07 15:23:29,230 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:29,352 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:29,545 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-07 15:23:29,656 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:29,782 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:23:29,985 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:30,093 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:30,350 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:30,693 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:30,807 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:30,926 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:31,134 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:31,241 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:31,362 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:31,554 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:31,662 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:31,781 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:31,893 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:32,001 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:32,118 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:32,358 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:32,641 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:32,874 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:32,994 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:33,104 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:33,224 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:33,428 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:33,540 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:33,658 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:33,854 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:23:33,962 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:34,081 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:34,188 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:34,297 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:34,413 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:34,533 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:34,648 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:34,770 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:34,883 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:34,994 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:35,115 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:35,227 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:35,339 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:35,466 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:35,655 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-07 15:23:35,767 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-07 15:23:35,891 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:35,895 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:23:36,205 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:36,371 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:23:36,473 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:23:36,591 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:36,771 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 548 [2019-10-07 15:23:36,987 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:37,089 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:23:37,305 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:37,312 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 548 for LOIs [2019-10-07 15:23:37,414 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:23:37,630 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:23:37,742 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:23:37,961 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:38,287 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:23:38,400 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:23:38,502 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:23:38,625 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:23:38,738 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:23:38,841 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:23:38,966 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:23:39,107 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:39,382 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:39,732 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 577 [2019-10-07 15:23:40,045 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 563 [2019-10-07 15:23:40,420 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:40,764 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:40,900 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:41,176 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:41,490 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:41,595 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:41,865 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:42,184 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:42,288 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:42,557 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:42,870 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:42,974 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:43,243 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:43,561 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:43,666 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:43,935 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:44,246 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:44,350 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:44,619 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:45,017 WARN L191 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:45,169 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:45,441 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:45,782 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:45,892 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:46,160 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:46,472 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:46,576 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:46,844 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:47,158 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:47,262 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:47,532 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:23:47,846 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2019-10-07 15:23:48,208 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:48,629 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:49,032 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:49,444 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:49,853 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:50,249 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:50,649 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:51,058 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:51,461 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:51,870 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:52,276 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:23:52,549 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:23:52,551 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 15:23:52,558 INFO L168 Benchmark]: Toolchain (without parser) took 64898.55 ms. Allocated memory was 138.9 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 102.3 MB in the beginning and 902.3 MB in the end (delta: -799.9 MB). Peak memory consumption was 227.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:52,558 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:23:52,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.60 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 170.3 MB in the end (delta: -68.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:52,559 INFO L168 Benchmark]: Boogie Preprocessor took 121.61 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 165.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:52,560 INFO L168 Benchmark]: RCFGBuilder took 1758.80 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.6 MB in the beginning and 140.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:52,560 INFO L168 Benchmark]: TraceAbstraction took 62285.23 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 930.1 MB). Free memory was 140.9 MB in the beginning and 902.3 MB in the end (delta: -761.3 MB). Peak memory consumption was 168.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:23:52,562 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 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.60 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 170.3 MB in the end (delta: -68.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.61 ms. Allocated memory is still 203.4 MB. Free memory was 170.3 MB in the beginning and 165.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1758.80 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.6 MB in the beginning and 140.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 62285.23 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 930.1 MB). Free memory was 140.9 MB in the beginning and 902.3 MB in the end (delta: -761.3 MB). Peak memory consumption was 168.8 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...