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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:10,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:10,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:10,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:10,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:10,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:10,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:10,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:10,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:10,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:10,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:10,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:10,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:10,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:10,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:10,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:10,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:10,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:10,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:10,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:10,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:10,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:10,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:10,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:10,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:10,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:10,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:10,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:10,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:10,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:10,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:10,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:10,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:10,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:10,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:10,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:10,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:10,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:10,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:10,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:10,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:10,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:09:10,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:10,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:10,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:10,409 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:10,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:10,410 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:10,410 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:10,410 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:10,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:10,411 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:10,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:10,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:10,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:10,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:10,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:10,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:10,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:10,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:10,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:10,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:10,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:10,416 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:10,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:10,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:10,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:10,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:10,419 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:10,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:10,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:10,420 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:10,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:10,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:10,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:10,495 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:10,496 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:10,497 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2019-09-16 17:09:10,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb7aa01f/45da6c1d56ef4b279e3cc0da88448660/FLAG29b8892ff [2019-09-16 17:09:11,064 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:11,064 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2019-09-16 17:09:11,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb7aa01f/45da6c1d56ef4b279e3cc0da88448660/FLAG29b8892ff [2019-09-16 17:09:11,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb7aa01f/45da6c1d56ef4b279e3cc0da88448660 [2019-09-16 17:09:11,446 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:11,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:11,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:11,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:11,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:11,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d59116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11, skipping insertion in model container [2019-09-16 17:09:11,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,465 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:11,525 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:11,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:11,953 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:12,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:12,103 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:12,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12 WrapperNode [2019-09-16 17:09:12,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:12,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:12,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:12,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:12,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (1/1) ... [2019-09-16 17:09:12,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (1/1) ... [2019-09-16 17:09:12,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (1/1) ... [2019-09-16 17:09:12,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (1/1) ... [2019-09-16 17:09:12,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (1/1) ... [2019-09-16 17:09:12,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (1/1) ... [2019-09-16 17:09:12,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (1/1) ... [2019-09-16 17:09:12,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:12,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:12,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:12,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:12,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (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 [2019-09-16 17:09:12,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:12,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:12,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:12,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:12,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:12,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:12,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:12,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:12,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:12,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:12,320 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:12,321 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:12,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:12,322 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:12,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:09:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:09:12,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:12,328 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:09:12,328 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:12,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:09:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:09:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:09:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:13,791 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:13,791 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:13,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:13 BoogieIcfgContainer [2019-09-16 17:09:13,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:13,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:13,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:13,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:13,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:11" (1/3) ... [2019-09-16 17:09:13,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755836de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:13, skipping insertion in model container [2019-09-16 17:09:13,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:12" (2/3) ... [2019-09-16 17:09:13,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755836de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:13, skipping insertion in model container [2019-09-16 17:09:13,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:13" (3/3) ... [2019-09-16 17:09:13,805 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2019-09-16 17:09:13,816 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:13,828 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:13,845 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:13,882 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:13,883 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:13,883 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:13,883 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:13,883 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:13,884 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:13,884 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:13,884 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-09-16 17:09:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:09:13,917 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:13,918 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:13,921 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:13,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1488722281, now seen corresponding path program 1 times [2019-09-16 17:09:13,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:13,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:13,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,985 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:14,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:14,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:14,326 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:14,331 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:14,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:14,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:14,348 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2019-09-16 17:09:14,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:14,381 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2019-09-16 17:09:14,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:14,382 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:09:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:14,395 INFO L225 Difference]: With dead ends: 143 [2019-09-16 17:09:14,396 INFO L226 Difference]: Without dead ends: 132 [2019-09-16 17:09:14,397 INFO L636 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 [2019-09-16 17:09:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-09-16 17:09:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-09-16 17:09:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-09-16 17:09:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-09-16 17:09:14,452 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2019-09-16 17:09:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:14,452 INFO L475 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-09-16 17:09:14,452 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-09-16 17:09:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:09:14,456 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:14,456 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:14,456 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:14,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:14,457 INFO L82 PathProgramCache]: Analyzing trace with hash 469599371, now seen corresponding path program 1 times [2019-09-16 17:09:14,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:14,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:14,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,460 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:14,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:14,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:14,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:14,548 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:14,549 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:14,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:14,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:14,550 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2019-09-16 17:09:14,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:14,565 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2019-09-16 17:09:14,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:14,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:14,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:14,568 INFO L225 Difference]: With dead ends: 123 [2019-09-16 17:09:14,568 INFO L226 Difference]: Without dead ends: 123 [2019-09-16 17:09:14,569 INFO L636 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 [2019-09-16 17:09:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-16 17:09:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-16 17:09:14,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-16 17:09:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2019-09-16 17:09:14,582 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2019-09-16 17:09:14,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:14,582 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2019-09-16 17:09:14,582 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2019-09-16 17:09:14,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:09:14,585 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:14,585 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:14,585 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:14,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:14,585 INFO L82 PathProgramCache]: Analyzing trace with hash 305445596, now seen corresponding path program 1 times [2019-09-16 17:09:14,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:14,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:14,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,589 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:14,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:14,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:14,800 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:14,802 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:14,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:14,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:14,803 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2019-09-16 17:09:15,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:15,212 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2019-09-16 17:09:15,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:09:15,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:09:15,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:15,214 INFO L225 Difference]: With dead ends: 123 [2019-09-16 17:09:15,215 INFO L226 Difference]: Without dead ends: 123 [2019-09-16 17:09:15,215 INFO L636 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 [2019-09-16 17:09:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-16 17:09:15,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-16 17:09:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-16 17:09:15,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2019-09-16 17:09:15,226 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2019-09-16 17:09:15,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:15,226 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2019-09-16 17:09:15,226 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2019-09-16 17:09:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:09:15,229 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:15,229 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:15,230 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:15,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:15,230 INFO L82 PathProgramCache]: Analyzing trace with hash 892474279, now seen corresponding path program 1 times [2019-09-16 17:09:15,230 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:15,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:15,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,234 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:15,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:15,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:09:15,365 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:15,366 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:09:15,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:09:15,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:09:15,367 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 5 states. [2019-09-16 17:09:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:15,932 INFO L93 Difference]: Finished difference Result 222 states and 256 transitions. [2019-09-16 17:09:15,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:15,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-16 17:09:15,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:15,941 INFO L225 Difference]: With dead ends: 222 [2019-09-16 17:09:15,941 INFO L226 Difference]: Without dead ends: 222 [2019-09-16 17:09:15,941 INFO L636 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 [2019-09-16 17:09:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-09-16 17:09:15,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2019-09-16 17:09:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-09-16 17:09:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2019-09-16 17:09:15,981 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2019-09-16 17:09:15,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:15,981 INFO L475 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2019-09-16 17:09:15,982 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:09:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2019-09-16 17:09:15,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-16 17:09:15,985 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:15,986 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:15,986 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:15,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:15,987 INFO L82 PathProgramCache]: Analyzing trace with hash 861206730, now seen corresponding path program 1 times [2019-09-16 17:09:15,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:15,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:15,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,993 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:16,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:16,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:09:16,172 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:16,174 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:09:16,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:09:16,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:16,176 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 10 states. [2019-09-16 17:09:16,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:16,797 INFO L93 Difference]: Finished difference Result 471 states and 558 transitions. [2019-09-16 17:09:16,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:09:16,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2019-09-16 17:09:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:16,803 INFO L225 Difference]: With dead ends: 471 [2019-09-16 17:09:16,804 INFO L226 Difference]: Without dead ends: 471 [2019-09-16 17:09:16,804 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:09:16,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-09-16 17:09:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 461. [2019-09-16 17:09:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-09-16 17:09:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 541 transitions. [2019-09-16 17:09:16,841 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 541 transitions. Word has length 79 [2019-09-16 17:09:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:16,842 INFO L475 AbstractCegarLoop]: Abstraction has 461 states and 541 transitions. [2019-09-16 17:09:16,842 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:09:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 541 transitions. [2019-09-16 17:09:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-09-16 17:09:16,846 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:16,847 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:16,847 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:16,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:16,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1952847160, now seen corresponding path program 1 times [2019-09-16 17:09:16,848 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:16,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:16,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,850 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-16 17:09:16,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:09:16,967 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:09:16,969 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2019-09-16 17:09:16,972 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [102], [104], [107], [111], [112], [113], [129], [132], [134], [135], [138], [140], [143], [150], [153], [155], [164], [168], [172], [175], [178], [180], [186], [188], [194], [197], [207], [208], [218], [219], [220], [221], [222], [224], [227], [231], [232], [235], [238], [242], [248], [279], [283], [286], [289], [291], [294], [304], [307], [311], [312], [315], [316], [317], [344], [345], [410], [411], [421], [429], [430], [431], [432], [433], [435], [436], [437], [438], [439], [440], [441], [442], [443], [475], [476], [477], [478], [479], [480], [483], [484], [485], [486], [491], [492], [495], [496], [497], [498], [499], [500], [501], [502], [507], [508], [509], [510], [517], [525], [526], [527] [2019-09-16 17:09:17,014 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:09:17,014 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:09:17,080 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:09:17,081 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:09:17,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:17,086 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:09:17,136 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:09:17,137 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:09:17,145 INFO L420 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2019-09-16 17:09:17,145 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:09:17,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:09:17,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-16 17:09:17,146 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:17,147 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:17,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:17,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:17,148 INFO L87 Difference]: Start difference. First operand 461 states and 541 transitions. Second operand 2 states. [2019-09-16 17:09:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:17,148 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:09:17,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:17,149 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-09-16 17:09:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:17,149 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:09:17,149 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:17,149 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:17,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:17,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:17,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:17,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2019-09-16 17:09:17,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:17,151 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:17,151 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:17,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:17,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:17 BoogieIcfgContainer [2019-09-16 17:09:17,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:17,159 INFO L168 Benchmark]: Toolchain (without parser) took 5710.61 ms. Allocated memory was 132.6 MB in the beginning and 261.6 MB in the end (delta: 129.0 MB). Free memory was 87.5 MB in the beginning and 172.1 MB in the end (delta: -84.6 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:17,160 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:17,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.80 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 87.3 MB in the beginning and 163.6 MB in the end (delta: -76.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:17,162 INFO L168 Benchmark]: Boogie Preprocessor took 150.74 ms. Allocated memory is still 199.8 MB. Free memory was 163.6 MB in the beginning and 159.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:17,163 INFO L168 Benchmark]: RCFGBuilder took 1537.15 ms. Allocated memory was 199.8 MB in the beginning and 223.9 MB in the end (delta: 24.1 MB). Free memory was 159.2 MB in the beginning and 190.0 MB in the end (delta: -30.7 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:17,164 INFO L168 Benchmark]: TraceAbstraction took 3362.18 ms. Allocated memory was 223.9 MB in the beginning and 261.6 MB in the end (delta: 37.7 MB). Free memory was 188.6 MB in the beginning and 172.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 54.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:17,168 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.80 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 87.3 MB in the beginning and 163.6 MB in the end (delta: -76.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.74 ms. Allocated memory is still 199.8 MB. Free memory was 163.6 MB in the beginning and 159.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1537.15 ms. Allocated memory was 199.8 MB in the beginning and 223.9 MB in the end (delta: 24.1 MB). Free memory was 159.2 MB in the beginning and 190.0 MB in the end (delta: -30.7 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3362.18 ms. Allocated memory was 223.9 MB in the beginning and 261.6 MB in the end (delta: 37.7 MB). Free memory was 188.6 MB in the beginning and 172.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 54.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 239 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 777 SDtfs, 531 SDslu, 1667 SDs, 0 SdLazy, 703 SolverSat, 154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=461occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.9323308270676691 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 29 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 423 NumberOfCodeBlocks, 423 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 51799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 23/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...