/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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:36:28,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:36:28,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:36:28,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:36:28,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:36:28,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:36:28,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:36:28,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:36:28,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:36:28,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:36:28,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:36:28,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:36:28,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:36:28,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:36:28,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:36:28,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:36:28,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:36:28,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:36:28,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:36:28,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:36:28,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:36:28,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:36:28,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:36:28,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:36:28,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:36:28,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:36:28,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:36:28,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:36:28,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:36:28,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:36:28,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:36:28,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:36:28,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:36:28,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:36:28,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:36:28,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:36:28,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:36:28,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:36:28,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:36:28,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:36:28,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:36:28,423 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 04:36:28,454 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:36:28,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:36:28,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:36:28,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:36:28,457 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:36:28,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:36:28,458 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:36:28,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:36:28,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:36:28,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:36:28,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:36:28,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:36:28,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:36:28,460 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:36:28,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:36:28,461 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:36:28,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:36:28,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:36:28,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:36:28,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:36:28,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:36:28,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:36:28,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:36:28,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:36:28,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:36:28,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:36:28,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:36:28,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:36:28,463 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 04:36:28,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:36:28,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:36:28,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:36:28,792 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:36:28,792 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:36:28,793 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-11-07 04:36:28,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d67253df/14cb2a6e39204d5a8e1f974ccf5e2d21/FLAGe8f37d7f6 [2019-11-07 04:36:29,397 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:36:29,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-11-07 04:36:29,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d67253df/14cb2a6e39204d5a8e1f974ccf5e2d21/FLAGe8f37d7f6 [2019-11-07 04:36:29,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d67253df/14cb2a6e39204d5a8e1f974ccf5e2d21 [2019-11-07 04:36:29,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:36:29,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:36:29,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:36:29,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:36:29,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:36:29,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:36:29" (1/1) ... [2019-11-07 04:36:29,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8cd29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:29, skipping insertion in model container [2019-11-07 04:36:29,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:36:29" (1/1) ... [2019-11-07 04:36:29,752 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:36:29,792 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:36:30,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:36:30,281 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:36:30,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:36:30,411 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:36:30,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30 WrapperNode [2019-11-07 04:36:30,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:36:30,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:36:30,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:36:30,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:36:30,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (1/1) ... [2019-11-07 04:36:30,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:36:30,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:36:30,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:36:30,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:36:30,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (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 04:36:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:36:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:36:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:36:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:36:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:36:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:36:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:36:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:36:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:36:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:36:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:36:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:36:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:36:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:36:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:36:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-07 04:36:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:36:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:36:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:36:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:36:30,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:36:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:36:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:36:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:36:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:36:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:36:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:36:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:36:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:36:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:36:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:36:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:36:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:36:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:36:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:36:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:36:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:36:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:36:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:36:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:36:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:36:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:36:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:36:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:36:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:36:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:36:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:36:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:36:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-07 04:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:36:30,559 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:36:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:36:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:36:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:36:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:36:30,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:36:32,172 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:36:32,172 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:36:32,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:36:32 BoogieIcfgContainer [2019-11-07 04:36:32,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:36:32,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:36:32,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:36:32,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:36:32,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:36:29" (1/3) ... [2019-11-07 04:36:32,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4084de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:36:32, skipping insertion in model container [2019-11-07 04:36:32,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:36:30" (2/3) ... [2019-11-07 04:36:32,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4084de52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:36:32, skipping insertion in model container [2019-11-07 04:36:32,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:36:32" (3/3) ... [2019-11-07 04:36:32,184 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-11-07 04:36:32,196 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:36:32,205 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:36:32,220 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:36:32,250 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:36:32,250 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:36:32,250 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:36:32,250 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:36:32,252 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:36:32,252 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:36:32,252 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:36:32,253 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:36:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-11-07 04:36:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:36:32,300 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:32,302 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 04:36:32,305 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:32,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1708035582, now seen corresponding path program 1 times [2019-11-07 04:36:32,322 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:32,322 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422670619] [2019-11-07 04:36:32,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:32,626 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 04:36:32,627 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422670619] [2019-11-07 04:36:32,628 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:32,628 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:36:32,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970191492] [2019-11-07 04:36:32,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:36:32,635 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:32,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:36:32,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:36:32,653 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-11-07 04:36:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:32,697 INFO L93 Difference]: Finished difference Result 232 states and 279 transitions. [2019-11-07 04:36:32,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:36:32,698 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-11-07 04:36:32,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:32,712 INFO L225 Difference]: With dead ends: 232 [2019-11-07 04:36:32,712 INFO L226 Difference]: Without dead ends: 118 [2019-11-07 04:36:32,717 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 04:36:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-07 04:36:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-11-07 04:36:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-07 04:36:32,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2019-11-07 04:36:32,776 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 52 [2019-11-07 04:36:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:32,776 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2019-11-07 04:36:32,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:36:32,777 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2019-11-07 04:36:32,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-07 04:36:32,780 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:32,781 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 04:36:32,781 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:32,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:32,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1973649622, now seen corresponding path program 1 times [2019-11-07 04:36:32,782 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:32,782 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113612032] [2019-11-07 04:36:32,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:32,969 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 04:36:32,970 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113612032] [2019-11-07 04:36:32,970 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:32,971 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:36:32,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703071953] [2019-11-07 04:36:32,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:36:32,973 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:32,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:36:32,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:36:32,974 INFO L87 Difference]: Start difference. First operand 118 states and 135 transitions. Second operand 3 states. [2019-11-07 04:36:32,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:32,996 INFO L93 Difference]: Finished difference Result 186 states and 213 transitions. [2019-11-07 04:36:32,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:36:32,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-11-07 04:36:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:32,999 INFO L225 Difference]: With dead ends: 186 [2019-11-07 04:36:32,999 INFO L226 Difference]: Without dead ends: 110 [2019-11-07 04:36:33,001 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 04:36:33,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-07 04:36:33,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-07 04:36:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-07 04:36:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2019-11-07 04:36:33,016 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 53 [2019-11-07 04:36:33,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:33,017 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2019-11-07 04:36:33,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:36:33,017 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2019-11-07 04:36:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-07 04:36:33,020 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:33,020 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] [2019-11-07 04:36:33,020 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:33,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1339955029, now seen corresponding path program 1 times [2019-11-07 04:36:33,049 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:33,049 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322054423] [2019-11-07 04:36:33,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:33,213 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 04:36:33,214 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322054423] [2019-11-07 04:36:33,214 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:33,214 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:36:33,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124213307] [2019-11-07 04:36:33,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:36:33,215 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:33,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:36:33,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:36:33,218 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 7 states. [2019-11-07 04:36:33,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:33,568 INFO L93 Difference]: Finished difference Result 195 states and 224 transitions. [2019-11-07 04:36:33,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:36:33,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-07 04:36:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:33,572 INFO L225 Difference]: With dead ends: 195 [2019-11-07 04:36:33,572 INFO L226 Difference]: Without dead ends: 110 [2019-11-07 04:36:33,577 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:36:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-07 04:36:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-07 04:36:33,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-07 04:36:33,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 123 transitions. [2019-11-07 04:36:33,604 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 123 transitions. Word has length 56 [2019-11-07 04:36:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:33,609 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 123 transitions. [2019-11-07 04:36:33,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:36:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 123 transitions. [2019-11-07 04:36:33,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-07 04:36:33,615 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:33,617 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] [2019-11-07 04:36:33,618 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:33,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1723163158, now seen corresponding path program 1 times [2019-11-07 04:36:33,618 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:33,619 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968813127] [2019-11-07 04:36:33,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:33,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:36:33,793 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968813127] [2019-11-07 04:36:33,793 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:33,793 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:36:33,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397393861] [2019-11-07 04:36:33,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:36:33,795 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:33,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:36:33,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:36:33,796 INFO L87 Difference]: Start difference. First operand 110 states and 123 transitions. Second operand 5 states. [2019-11-07 04:36:34,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:34,386 INFO L93 Difference]: Finished difference Result 289 states and 342 transitions. [2019-11-07 04:36:34,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:36:34,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-11-07 04:36:34,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:34,390 INFO L225 Difference]: With dead ends: 289 [2019-11-07 04:36:34,390 INFO L226 Difference]: Without dead ends: 204 [2019-11-07 04:36:34,391 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 04:36:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-11-07 04:36:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 187. [2019-11-07 04:36:34,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-11-07 04:36:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 209 transitions. [2019-11-07 04:36:34,419 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 209 transitions. Word has length 69 [2019-11-07 04:36:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:34,419 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 209 transitions. [2019-11-07 04:36:34,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:36:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 209 transitions. [2019-11-07 04:36:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-11-07 04:36:34,422 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:34,422 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] [2019-11-07 04:36:34,422 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:34,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:34,422 INFO L82 PathProgramCache]: Analyzing trace with hash 661229768, now seen corresponding path program 1 times [2019-11-07 04:36:34,423 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:34,423 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315733903] [2019-11-07 04:36:34,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:34,646 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 04:36:34,647 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315733903] [2019-11-07 04:36:34,647 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:34,647 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:36:34,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203138125] [2019-11-07 04:36:34,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:36:34,648 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:34,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:36:34,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:36:34,649 INFO L87 Difference]: Start difference. First operand 187 states and 209 transitions. Second operand 12 states. [2019-11-07 04:36:35,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:35,568 INFO L93 Difference]: Finished difference Result 503 states and 578 transitions. [2019-11-07 04:36:35,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:36:35,568 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2019-11-07 04:36:35,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:35,574 INFO L225 Difference]: With dead ends: 503 [2019-11-07 04:36:35,574 INFO L226 Difference]: Without dead ends: 341 [2019-11-07 04:36:35,576 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:36:35,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-11-07 04:36:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 329. [2019-11-07 04:36:35,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-11-07 04:36:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 377 transitions. [2019-11-07 04:36:35,615 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 377 transitions. Word has length 78 [2019-11-07 04:36:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:35,615 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 377 transitions. [2019-11-07 04:36:35,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:36:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 377 transitions. [2019-11-07 04:36:35,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-11-07 04:36:35,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:35,618 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] [2019-11-07 04:36:35,618 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:35,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:35,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1630693714, now seen corresponding path program 1 times [2019-11-07 04:36:35,619 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:35,619 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465421766] [2019-11-07 04:36:35,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:35,702 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 04:36:35,703 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465421766] [2019-11-07 04:36:35,703 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:35,703 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:36:35,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373190674] [2019-11-07 04:36:35,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:36:35,704 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:35,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:36:35,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:36:35,705 INFO L87 Difference]: Start difference. First operand 329 states and 377 transitions. Second operand 7 states. [2019-11-07 04:36:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:36,309 INFO L93 Difference]: Finished difference Result 661 states and 783 transitions. [2019-11-07 04:36:36,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:36:36,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-11-07 04:36:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:36,319 INFO L225 Difference]: With dead ends: 661 [2019-11-07 04:36:36,319 INFO L226 Difference]: Without dead ends: 357 [2019-11-07 04:36:36,320 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 04:36:36,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-11-07 04:36:36,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 326. [2019-11-07 04:36:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-11-07 04:36:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 368 transitions. [2019-11-07 04:36:36,369 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 368 transitions. Word has length 78 [2019-11-07 04:36:36,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:36,369 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 368 transitions. [2019-11-07 04:36:36,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:36:36,370 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 368 transitions. [2019-11-07 04:36:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-07 04:36:36,372 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:36,372 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] [2019-11-07 04:36:36,372 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:36,372 INFO L82 PathProgramCache]: Analyzing trace with hash -204144966, now seen corresponding path program 1 times [2019-11-07 04:36:36,373 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:36,373 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779860641] [2019-11-07 04:36:36,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:36,497 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 04:36:36,498 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779860641] [2019-11-07 04:36:36,498 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:36:36,498 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:36:36,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567046194] [2019-11-07 04:36:36,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:36:36,499 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:36:36,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:36:36,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:36:36,500 INFO L87 Difference]: Start difference. First operand 326 states and 368 transitions. Second operand 9 states. [2019-11-07 04:36:37,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:36:37,363 INFO L93 Difference]: Finished difference Result 999 states and 1158 transitions. [2019-11-07 04:36:37,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:36:37,365 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2019-11-07 04:36:37,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:36:37,370 INFO L225 Difference]: With dead ends: 999 [2019-11-07 04:36:37,370 INFO L226 Difference]: Without dead ends: 759 [2019-11-07 04:36:37,371 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 04:36:37,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-11-07 04:36:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 654. [2019-11-07 04:36:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-11-07 04:36:37,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 746 transitions. [2019-11-07 04:36:37,423 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 746 transitions. Word has length 81 [2019-11-07 04:36:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:36:37,424 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 746 transitions. [2019-11-07 04:36:37,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:36:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 746 transitions. [2019-11-07 04:36:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-07 04:36:37,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:36:37,427 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:37,427 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:36:37,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:36:37,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1911582456, now seen corresponding path program 1 times [2019-11-07 04:36:37,428 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:36:37,428 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135725280] [2019-11-07 04:36:37,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:36:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-07 04:36:37,591 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135725280] [2019-11-07 04:36:37,591 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003362777] [2019-11-07 04:36:37,591 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 04:36:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:36:37,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 04:36:37,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:36:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:36:38,021 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:36:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-07 04:36:38,455 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1833121334] [2019-11-07 04:36:38,484 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2019-11-07 04:36:38,484 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:36:38,491 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:36:38,497 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:36:38,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:36:49,485 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-11-07 04:36:51,326 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:36:51,449 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:51,633 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:51,762 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:52,050 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:36:52,176 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:52,309 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:36:52,549 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:36:52,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-11-07 04:36:52,575 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-11-07 04:36:52,879 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,054 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,271 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:53,428 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,544 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,712 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:53,818 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:53,953 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:54,092 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:54,200 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:54,310 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:36:54,456 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:54,609 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:54,728 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:54,867 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,016 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,152 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,280 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,391 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,526 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,647 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,854 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:55,989 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:56,121 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:56,324 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:36:56,437 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:36:56,572 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:36:56,690 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:36:56,816 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:36:56,939 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:36:57,127 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:36:57,239 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:36:57,372 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-11-07 04:36:57,491 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:36:57,699 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:36:57,909 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-11-07 04:36:57,928 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 548 for LOIs [2019-11-07 04:36:58,117 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-11-07 04:36:58,344 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:58,554 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-11-07 04:36:58,682 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:58,692 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-11-07 04:36:58,955 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-11-07 04:36:59,303 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:36:59,861 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 579 [2019-11-07 04:37:00,002 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-11-07 04:37:00,279 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:00,646 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 579 [2019-11-07 04:37:01,104 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-11-07 04:37:01,784 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-11-07 04:37:02,235 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 188 [2019-11-07 04:37:02,633 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 195 [2019-11-07 04:37:02,737 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 202 [2019-11-07 04:37:03,191 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-11-07 04:37:03,549 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2019-11-07 04:37:03,851 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 622 [2019-11-07 04:37:04,039 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 622 [2019-11-07 04:37:04,237 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-11-07 04:37:05,364 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-11-07 04:37:05,481 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-11-07 04:37:05,649 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 142 for LOIs [2019-11-07 04:37:05,653 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 151 for LOIs