/usr/bin/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_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:35:52,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:35:52,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:35:52,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:35:52,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:35:52,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:35:52,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:35:52,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:35:52,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:35:52,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:35:52,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:35:52,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:35:52,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:35:52,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:35:52,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:35:52,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:35:52,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:35:52,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:35:52,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:35:52,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:35:52,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:35:52,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:35:52,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:35:52,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:35:52,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:35:52,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:35:52,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:35:52,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:35:52,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:35:52,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:35:52,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:35:52,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:35:52,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:35:52,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:35:52,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:35:52,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:35:52,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:35:52,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:35:52,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:35:52,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:35:52,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:35:52,379 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 [2019-11-07 04:35:52,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:35:52,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:35:52,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:35:52,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:35:52,416 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:35:52,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:35:52,417 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:35:52,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:35:52,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:35:52,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:35:52,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:35:52,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:35:52,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:35:52,420 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:35:52,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:35:52,420 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:35:52,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:35:52,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:35:52,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:35:52,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:35:52,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:35:52,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:35:52,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:35:52,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:35:52,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:35:52,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:35:52,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:35:52,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:35:52,423 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 [2019-11-07 04:35:52,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:35:52,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:35:52,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:35:52,740 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:35:52,740 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:35:52,741 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2019-11-07 04:35:52,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bf60d76/62589be465d5461c88746ffa8647f32d/FLAG59ef45605 [2019-11-07 04:35:53,328 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:35:53,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2019-11-07 04:35:53,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bf60d76/62589be465d5461c88746ffa8647f32d/FLAG59ef45605 [2019-11-07 04:35:53,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bf60d76/62589be465d5461c88746ffa8647f32d [2019-11-07 04:35:53,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:35:53,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:35:53,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:35:53,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:35:53,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:35:53,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:35:53" (1/1) ... [2019-11-07 04:35:53,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60853342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:53, skipping insertion in model container [2019-11-07 04:35:53,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:35:53" (1/1) ... [2019-11-07 04:35:53,614 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:35:53,665 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:35:54,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:35:54,207 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:35:54,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:35:54,328 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:35:54,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54 WrapperNode [2019-11-07 04:35:54,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:35:54,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:35:54,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:35:54,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:35:54,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... [2019-11-07 04:35:54,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... [2019-11-07 04:35:54,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... [2019-11-07 04:35:54,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... [2019-11-07 04:35:54,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... [2019-11-07 04:35:54,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... [2019-11-07 04:35:54,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... [2019-11-07 04:35:54,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:35:54,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:35:54,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:35:54,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:35:54,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:35:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:35:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:35:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:35:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:35:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:35:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:35:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:35:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:35:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:35:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:35:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:35:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:35:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:35:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:35:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:35:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:35:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:35:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:35:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:35:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:35:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:35:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:35:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:35:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:35:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-11-07 04:35:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:35:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:35:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:35:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:35:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:35:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:35:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:35:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:35:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:35:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:35:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:35:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:35:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:35:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:35:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:35:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:35:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:35:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:35:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:35:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:35:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:35:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:35:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:35:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:35:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:35:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:35:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:35:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:35:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:35:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:35:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:35:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:35:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:35:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:35:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:35:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:35:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:35:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:35:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:35:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:35:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:35:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:35:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:35:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:35:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:35:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:35:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:35:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:35:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:35:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:35:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:35:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:35:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:35:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:35:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:35:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:35:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:35:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-11-07 04:35:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:35:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:35:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:35:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:35:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:35:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:35:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:35:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:35:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:35:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:35:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:35:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:35:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:35:56,144 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:35:56,146 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:35:56,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:35:56 BoogieIcfgContainer [2019-11-07 04:35:56,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:35:56,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:35:56,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:35:56,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:35:56,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:35:53" (1/3) ... [2019-11-07 04:35:56,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b35a66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:35:56, skipping insertion in model container [2019-11-07 04:35:56,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:54" (2/3) ... [2019-11-07 04:35:56,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b35a66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:35:56, skipping insertion in model container [2019-11-07 04:35:56,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:35:56" (3/3) ... [2019-11-07 04:35:56,161 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2019-11-07 04:35:56,174 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:35:56,184 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:35:56,196 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:35:56,230 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:35:56,230 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:35:56,230 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:35:56,230 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:35:56,232 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:35:56,232 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:35:56,232 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:35:56,232 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:35:56,256 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-11-07 04:35:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:35:56,266 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:56,267 INFO L410 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] [2019-11-07 04:35:56,270 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:56,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1748803141, now seen corresponding path program 1 times [2019-11-07 04:35:56,287 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:56,288 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037796592] [2019-11-07 04:35:56,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:56,705 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037796592] [2019-11-07 04:35:56,707 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:56,707 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:35:56,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980986868] [2019-11-07 04:35:56,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:35:56,716 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:56,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:35:56,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:35:56,731 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-11-07 04:35:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:56,785 INFO L93 Difference]: Finished difference Result 238 states and 287 transitions. [2019-11-07 04:35:56,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:35:56,787 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-11-07 04:35:56,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:56,800 INFO L225 Difference]: With dead ends: 238 [2019-11-07 04:35:56,800 INFO L226 Difference]: Without dead ends: 121 [2019-11-07 04:35:56,805 INFO L630 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 [2019-11-07 04:35:56,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-07 04:35:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-11-07 04:35:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-07 04:35:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2019-11-07 04:35:56,857 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 52 [2019-11-07 04:35:56,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:56,858 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2019-11-07 04:35:56,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:35:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2019-11-07 04:35:56,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-07 04:35:56,862 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:56,863 INFO L410 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] [2019-11-07 04:35:56,863 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:56,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:56,864 INFO L82 PathProgramCache]: Analyzing trace with hash 766058563, now seen corresponding path program 1 times [2019-11-07 04:35:56,864 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:56,864 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983480487] [2019-11-07 04:35:56,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:56,990 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983480487] [2019-11-07 04:35:56,990 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:56,990 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:35:56,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901540009] [2019-11-07 04:35:56,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:35:56,994 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:56,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:35:56,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:35:56,995 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand 3 states. [2019-11-07 04:35:57,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:57,034 INFO L93 Difference]: Finished difference Result 196 states and 226 transitions. [2019-11-07 04:35:57,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:35:57,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-11-07 04:35:57,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:57,039 INFO L225 Difference]: With dead ends: 196 [2019-11-07 04:35:57,039 INFO L226 Difference]: Without dead ends: 113 [2019-11-07 04:35:57,041 INFO L630 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 [2019-11-07 04:35:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-11-07 04:35:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-11-07 04:35:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-07 04:35:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2019-11-07 04:35:57,057 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 53 [2019-11-07 04:35:57,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:57,058 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2019-11-07 04:35:57,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:35:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2019-11-07 04:35:57,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-07 04:35:57,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:57,061 INFO L410 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] [2019-11-07 04:35:57,061 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:57,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:57,062 INFO L82 PathProgramCache]: Analyzing trace with hash -294668343, now seen corresponding path program 1 times [2019-11-07 04:35:57,062 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:57,062 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688892919] [2019-11-07 04:35:57,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:57,287 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688892919] [2019-11-07 04:35:57,287 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:57,288 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:35:57,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115696369] [2019-11-07 04:35:57,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:35:57,291 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:57,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:35:57,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:35:57,292 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand 7 states. [2019-11-07 04:35:57,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:57,653 INFO L93 Difference]: Finished difference Result 201 states and 232 transitions. [2019-11-07 04:35:57,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:35:57,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-11-07 04:35:57,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:57,657 INFO L225 Difference]: With dead ends: 201 [2019-11-07 04:35:57,657 INFO L226 Difference]: Without dead ends: 113 [2019-11-07 04:35:57,658 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:35:57,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-11-07 04:35:57,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-11-07 04:35:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-07 04:35:57,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2019-11-07 04:35:57,673 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 55 [2019-11-07 04:35:57,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:57,675 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2019-11-07 04:35:57,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:35:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2019-11-07 04:35:57,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-07 04:35:57,679 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:57,679 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:57,679 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:57,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:57,679 INFO L82 PathProgramCache]: Analyzing trace with hash 453653826, now seen corresponding path program 1 times [2019-11-07 04:35:57,680 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:57,680 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604456624] [2019-11-07 04:35:57,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:57,830 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604456624] [2019-11-07 04:35:57,830 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:57,831 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:35:57,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034787579] [2019-11-07 04:35:57,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:35:57,832 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:57,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:35:57,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:35:57,833 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 5 states. [2019-11-07 04:35:58,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:58,645 INFO L93 Difference]: Finished difference Result 297 states and 348 transitions. [2019-11-07 04:35:58,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:35:58,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-11-07 04:35:58,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:58,652 INFO L225 Difference]: With dead ends: 297 [2019-11-07 04:35:58,652 INFO L226 Difference]: Without dead ends: 209 [2019-11-07 04:35:58,654 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:35:58,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-11-07 04:35:58,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 194. [2019-11-07 04:35:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-11-07 04:35:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 215 transitions. [2019-11-07 04:35:58,686 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 215 transitions. Word has length 68 [2019-11-07 04:35:58,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:58,693 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 215 transitions. [2019-11-07 04:35:58,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:35:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 215 transitions. [2019-11-07 04:35:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 04:35:58,695 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:58,695 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:58,696 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:58,696 INFO L82 PathProgramCache]: Analyzing trace with hash 594371002, now seen corresponding path program 1 times [2019-11-07 04:35:58,696 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:58,696 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350982731] [2019-11-07 04:35:58,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:35:58,860 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350982731] [2019-11-07 04:35:58,861 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:58,861 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:35:58,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822354928] [2019-11-07 04:35:58,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:35:58,862 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:58,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:35:58,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:35:58,863 INFO L87 Difference]: Start difference. First operand 194 states and 215 transitions. Second operand 7 states. [2019-11-07 04:35:59,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:59,426 INFO L93 Difference]: Finished difference Result 377 states and 431 transitions. [2019-11-07 04:35:59,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:35:59,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-11-07 04:35:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:59,433 INFO L225 Difference]: With dead ends: 377 [2019-11-07 04:35:59,433 INFO L226 Difference]: Without dead ends: 208 [2019-11-07 04:35:59,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:35:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-11-07 04:35:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2019-11-07 04:35:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-07 04:35:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 212 transitions. [2019-11-07 04:35:59,470 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 212 transitions. Word has length 77 [2019-11-07 04:35:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:59,471 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 212 transitions. [2019-11-07 04:35:59,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:35:59,471 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 212 transitions. [2019-11-07 04:35:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-11-07 04:35:59,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:59,473 INFO L410 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] [2019-11-07 04:35:59,473 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:59,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:59,474 INFO L82 PathProgramCache]: Analyzing trace with hash -410100021, now seen corresponding path program 1 times [2019-11-07 04:35:59,474 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:59,474 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39019608] [2019-11-07 04:35:59,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:59,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:59,698 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39019608] [2019-11-07 04:35:59,698 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:59,698 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:35:59,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202270460] [2019-11-07 04:35:59,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:35:59,700 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:59,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:35:59,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:35:59,700 INFO L87 Difference]: Start difference. First operand 193 states and 212 transitions. Second operand 12 states. [2019-11-07 04:36:00,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:00,713 INFO L93 Difference]: Finished difference Result 498 states and 568 transitions. [2019-11-07 04:36:00,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:36:00,714 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-11-07 04:36:00,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:00,719 INFO L225 Difference]: With dead ends: 498 [2019-11-07 04:36:00,719 INFO L226 Difference]: Without dead ends: 330 [2019-11-07 04:36:00,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:36:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-07 04:36:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 321. [2019-11-07 04:36:00,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-11-07 04:36:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 363 transitions. [2019-11-07 04:36:00,752 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 363 transitions. Word has length 90 [2019-11-07 04:36:00,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:00,753 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 363 transitions. [2019-11-07 04:36:00,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:36:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 363 transitions. [2019-11-07 04:36:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-07 04:36:00,755 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:00,755 INFO L410 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] [2019-11-07 04:36:00,760 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:00,760 INFO L82 PathProgramCache]: Analyzing trace with hash 378572654, now seen corresponding path program 1 times [2019-11-07 04:36:00,761 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:00,761 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503436979] [2019-11-07 04:36:00,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:01,009 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503436979] [2019-11-07 04:36:01,009 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:01,010 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:36:01,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435990391] [2019-11-07 04:36:01,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:36:01,012 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:01,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:36:01,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:36:01,012 INFO L87 Difference]: Start difference. First operand 321 states and 363 transitions. Second operand 9 states. [2019-11-07 04:36:01,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:01,927 INFO L93 Difference]: Finished difference Result 991 states and 1155 transitions. [2019-11-07 04:36:01,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:36:01,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2019-11-07 04:36:01,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:01,934 INFO L225 Difference]: With dead ends: 991 [2019-11-07 04:36:01,934 INFO L226 Difference]: Without dead ends: 752 [2019-11-07 04:36:01,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:36:01,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2019-11-07 04:36:01,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 655. [2019-11-07 04:36:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-11-07 04:36:01,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 747 transitions. [2019-11-07 04:36:01,988 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 747 transitions. Word has length 93 [2019-11-07 04:36:01,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:01,989 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 747 transitions. [2019-11-07 04:36:01,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:36:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 747 transitions. [2019-11-07 04:36:01,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-07 04:36:01,991 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:01,991 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:36:01,991 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:01,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:01,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1202406650, now seen corresponding path program 1 times [2019-11-07 04:36:01,992 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:01,992 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833140999] [2019-11-07 04:36:01,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 04:36:02,151 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833140999] [2019-11-07 04:36:02,151 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952110871] [2019-11-07 04:36:02,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:36:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:02,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 04:36:02,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:36:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 28 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:36:02,575 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:36:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 04:36:03,104 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [614110279] [2019-11-07 04:36:03,147 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2019-11-07 04:36:03,147 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:36:03,160 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:36:03,168 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:36:03,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:36:11,752 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-11-07 04:36:13,471 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:36:13,652 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:13,865 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:14,075 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:14,492 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:36:14,684 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:14,810 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:15,050 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:36:15,060 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-11-07 04:36:15,071 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-11-07 04:36:15,317 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:15,513 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:15,763 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:16,009 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:16,260 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:16,449 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:16,572 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:16,693 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:16,855 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:16,959 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:17,205 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:17,359 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:17,543 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:17,703 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:17,888 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:18,034 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:18,235 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:18,372 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:18,501 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:18,658 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:18,801 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:18,974 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:19,144 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:19,531 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 562 [2019-11-07 04:36:19,644 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:36:19,783 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:20,024 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 562 [2019-11-07 04:36:20,151 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:36:20,361 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:20,550 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:20,661 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:20,803 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:36:20,944 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:21,069 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:21,190 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:36:21,208 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-11-07 04:36:21,373 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:21,640 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:21,801 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:22,016 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:36:22,024 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-11-07 04:36:22,211 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-11-07 04:36:22,534 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:22,970 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 575 [2019-11-07 04:36:23,377 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-11-07 04:36:24,098 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-11-07 04:36:24,240 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-11-07 04:36:24,455 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 602 [2019-11-07 04:36:24,660 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 602 [2019-11-07 04:36:24,863 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 592 [2019-11-07 04:36:25,008 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:36:25,314 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 592 [2019-11-07 04:36:25,594 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 628 [2019-11-07 04:36:26,162 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 602 [2019-11-07 04:36:26,488 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 602 [2019-11-07 04:36:26,722 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 592 [2019-11-07 04:36:26,860 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:36:27,046 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 592 [2019-11-07 04:36:27,186 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 592 [2019-11-07 04:36:27,323 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:36:27,517 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 592 [2019-11-07 04:36:28,030 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 633 [2019-11-07 04:36:28,369 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 633 [2019-11-07 04:36:28,792 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 631 [2019-11-07 04:36:29,148 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 631 [2019-11-07 04:36:29,209 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 573 for LOIs [2019-11-07 04:36:29,221 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 571 for LOIs [2019-11-07 04:36:29,368 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 574 [2019-11-07 04:36:29,492 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-11-07 04:36:29,659 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-11-07 04:36:29,766 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 574 [2019-11-07 04:36:29,902 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-11-07 04:36:30,065 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-11-07 04:36:30,172 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 574 DAG size of output: 574 [2019-11-07 04:36:30,296 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-11-07 04:36:30,479 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580