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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:01,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:01,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:01,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:01,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:01,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:01,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:01,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:01,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:01,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:01,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:01,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:01,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:01,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:01,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:01,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:01,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:01,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:01,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:01,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:01,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:01,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:01,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:01,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:01,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:01,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:01,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:01,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:01,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:01,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:01,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:01,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:01,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:01,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:01,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:01,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:01,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:01,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:01,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:01,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:01,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:01,385 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 [2019-09-20 13:31:01,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:01,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:01,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:01,402 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:01,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:01,403 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:01,403 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:01,404 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:01,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:01,404 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:01,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:01,405 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:01,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:01,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:01,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:01,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:01,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:01,406 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:01,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:01,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:01,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:01,407 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:01,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:01,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:01,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:01,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:01,408 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:01,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:01,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:01,409 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:01,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:01,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:01,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:01,459 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:01,460 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:01,461 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product60.cil.c [2019-09-20 13:31:01,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74931ab0/b931607f03e04eb0bf90974f66188f82/FLAGb7cb64009 [2019-09-20 13:31:02,083 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:02,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product60.cil.c [2019-09-20 13:31:02,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74931ab0/b931607f03e04eb0bf90974f66188f82/FLAGb7cb64009 [2019-09-20 13:31:02,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74931ab0/b931607f03e04eb0bf90974f66188f82 [2019-09-20 13:31:02,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:02,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:02,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:02,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:02,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:02,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:02,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc1d1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:02, skipping insertion in model container [2019-09-20 13:31:02,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:02" (1/1) ... [2019-09-20 13:31:02,386 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:02,461 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:03,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:03,023 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:03,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:03,188 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:03,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03 WrapperNode [2019-09-20 13:31:03,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:03,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:03,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:03,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:03,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (1/1) ... [2019-09-20 13:31:03,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (1/1) ... [2019-09-20 13:31:03,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (1/1) ... [2019-09-20 13:31:03,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (1/1) ... [2019-09-20 13:31:03,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (1/1) ... [2019-09-20 13:31:03,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (1/1) ... [2019-09-20 13:31:03,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (1/1) ... [2019-09-20 13:31:03,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:03,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:03,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:03,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:03,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (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 [2019-09-20 13:31:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:03,353 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:03,354 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:31:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:31:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:04,441 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:04,441 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:04,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:04 BoogieIcfgContainer [2019-09-20 13:31:04,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:04,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:04,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:04,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:04,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:02" (1/3) ... [2019-09-20 13:31:04,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b38428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:04, skipping insertion in model container [2019-09-20 13:31:04,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:03" (2/3) ... [2019-09-20 13:31:04,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b38428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:04, skipping insertion in model container [2019-09-20 13:31:04,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:04" (3/3) ... [2019-09-20 13:31:04,452 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2019-09-20 13:31:04,462 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:04,473 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:04,490 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:04,519 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:04,519 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:04,520 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:04,520 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:04,521 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:04,521 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:04,521 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:04,522 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:04,553 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-09-20 13:31:04,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:31:04,569 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:04,570 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] [2019-09-20 13:31:04,573 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:04,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:04,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2134554421, now seen corresponding path program 1 times [2019-09-20 13:31:04,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:04,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:04,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:04,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:04,646 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:04,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:04,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:04,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:04,984 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:04,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:05,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:05,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:05,014 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-09-20 13:31:05,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:05,049 INFO L93 Difference]: Finished difference Result 164 states and 190 transitions. [2019-09-20 13:31:05,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:05,050 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:31:05,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:05,064 INFO L225 Difference]: With dead ends: 164 [2019-09-20 13:31:05,064 INFO L226 Difference]: Without dead ends: 153 [2019-09-20 13:31:05,066 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 [2019-09-20 13:31:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-20 13:31:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-20 13:31:05,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-20 13:31:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2019-09-20 13:31:05,124 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 46 [2019-09-20 13:31:05,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:05,124 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2019-09-20 13:31:05,124 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:05,124 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2019-09-20 13:31:05,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:31:05,128 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:05,128 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] [2019-09-20 13:31:05,128 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:05,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1258335028, now seen corresponding path program 1 times [2019-09-20 13:31:05,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:05,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:05,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,132 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:05,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:05,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:05,238 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:05,240 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:05,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:05,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:05,241 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 3 states. [2019-09-20 13:31:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:05,258 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2019-09-20 13:31:05,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:05,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:31:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:05,262 INFO L225 Difference]: With dead ends: 144 [2019-09-20 13:31:05,262 INFO L226 Difference]: Without dead ends: 144 [2019-09-20 13:31:05,263 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 [2019-09-20 13:31:05,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-20 13:31:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-20 13:31:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-20 13:31:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 166 transitions. [2019-09-20 13:31:05,277 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 166 transitions. Word has length 47 [2019-09-20 13:31:05,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:05,278 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 166 transitions. [2019-09-20 13:31:05,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 166 transitions. [2019-09-20 13:31:05,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:31:05,280 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:05,280 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] [2019-09-20 13:31:05,281 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:05,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:05,281 INFO L82 PathProgramCache]: Analyzing trace with hash 598975815, now seen corresponding path program 1 times [2019-09-20 13:31:05,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:05,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:05,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:05,284 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:05,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:05,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:05,422 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:05,423 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:05,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:05,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:05,423 INFO L87 Difference]: Start difference. First operand 144 states and 166 transitions. Second operand 7 states. [2019-09-20 13:31:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:06,079 INFO L93 Difference]: Finished difference Result 314 states and 372 transitions. [2019-09-20 13:31:06,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:06,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:31:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:06,084 INFO L225 Difference]: With dead ends: 314 [2019-09-20 13:31:06,084 INFO L226 Difference]: Without dead ends: 314 [2019-09-20 13:31:06,084 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 [2019-09-20 13:31:06,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-09-20 13:31:06,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2019-09-20 13:31:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-09-20 13:31:06,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 360 transitions. [2019-09-20 13:31:06,134 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 360 transitions. Word has length 52 [2019-09-20 13:31:06,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:06,134 INFO L475 AbstractCegarLoop]: Abstraction has 302 states and 360 transitions. [2019-09-20 13:31:06,134 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 360 transitions. [2019-09-20 13:31:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:31:06,138 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:06,138 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] [2019-09-20 13:31:06,138 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:06,138 INFO L82 PathProgramCache]: Analyzing trace with hash 301540465, now seen corresponding path program 1 times [2019-09-20 13:31:06,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:06,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:06,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:06,142 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:06,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:06,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:31:06,303 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:06,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:31:06,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:31:06,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:06,304 INFO L87 Difference]: Start difference. First operand 302 states and 360 transitions. Second operand 10 states. [2019-09-20 13:31:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:07,032 INFO L93 Difference]: Finished difference Result 810 states and 1005 transitions. [2019-09-20 13:31:07,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:31:07,033 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-20 13:31:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:07,040 INFO L225 Difference]: With dead ends: 810 [2019-09-20 13:31:07,040 INFO L226 Difference]: Without dead ends: 810 [2019-09-20 13:31:07,041 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 [2019-09-20 13:31:07,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-09-20 13:31:07,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 798. [2019-09-20 13:31:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2019-09-20 13:31:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 984 transitions. [2019-09-20 13:31:07,116 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 984 transitions. Word has length 57 [2019-09-20 13:31:07,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:07,117 INFO L475 AbstractCegarLoop]: Abstraction has 798 states and 984 transitions. [2019-09-20 13:31:07,120 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:31:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 984 transitions. [2019-09-20 13:31:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:31:07,134 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:07,134 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] [2019-09-20 13:31:07,135 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:07,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:07,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1216503305, now seen corresponding path program 1 times [2019-09-20 13:31:07,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:07,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:07,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:31:07,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:07,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:07,273 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:07,273 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:07,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:07,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:07,274 INFO L87 Difference]: Start difference. First operand 798 states and 984 transitions. Second operand 4 states. [2019-09-20 13:31:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:07,655 INFO L93 Difference]: Finished difference Result 1203 states and 1561 transitions. [2019-09-20 13:31:07,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:31:07,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-20 13:31:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:07,663 INFO L225 Difference]: With dead ends: 1203 [2019-09-20 13:31:07,663 INFO L226 Difference]: Without dead ends: 1203 [2019-09-20 13:31:07,664 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2019-09-20 13:31:07,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1065. [2019-09-20 13:31:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-09-20 13:31:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1322 transitions. [2019-09-20 13:31:07,718 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1322 transitions. Word has length 61 [2019-09-20 13:31:07,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:07,719 INFO L475 AbstractCegarLoop]: Abstraction has 1065 states and 1322 transitions. [2019-09-20 13:31:07,719 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1322 transitions. [2019-09-20 13:31:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:31:07,721 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:07,722 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, 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] [2019-09-20 13:31:07,722 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:07,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:07,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1663970326, now seen corresponding path program 1 times [2019-09-20 13:31:07,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:07,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:07,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:07,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-20 13:31:07,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:07,856 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:07,857 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2019-09-20 13:31:07,860 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [164], [173], [177], [181], [184], [189], [195], [197], [203], [206], [209], [241], [242], [259], [266], [269], [328], [332], [333], [336], [337], [338], [431], [432], [442], [450], [451], [452], [453], [454], [456], [457], [458], [459], [460], [461], [462], [463], [464], [508], [509], [514], [515], [516], [517], [530], [531], [546], [554], [555], [556] [2019-09-20 13:31:07,910 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:07,910 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:07,978 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:07,980 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:31:07,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:07,984 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:08,048 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:08,049 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:08,052 INFO L420 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2019-09-20 13:31:08,052 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:08,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:08,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:31:08,053 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:08,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:08,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:08,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:08,055 INFO L87 Difference]: Start difference. First operand 1065 states and 1322 transitions. Second operand 2 states. [2019-09-20 13:31:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:08,055 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:08,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:08,056 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 89 [2019-09-20 13:31:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:08,056 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:08,056 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:08,056 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:08,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-20 13:31:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:08,058 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:08,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:08,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:08,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:08,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:08 BoogieIcfgContainer [2019-09-20 13:31:08,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:08,066 INFO L168 Benchmark]: Toolchain (without parser) took 5698.90 ms. Allocated memory was 132.6 MB in the beginning and 263.7 MB in the end (delta: 131.1 MB). Free memory was 87.8 MB in the beginning and 142.3 MB in the end (delta: -54.5 MB). Peak memory consumption was 76.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,067 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.81 ms. Allocated memory was 132.6 MB in the beginning and 198.7 MB in the end (delta: 66.1 MB). Free memory was 87.6 MB in the beginning and 162.4 MB in the end (delta: -74.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,069 INFO L168 Benchmark]: Boogie Preprocessor took 95.18 ms. Allocated memory is still 198.7 MB. Free memory was 162.4 MB in the beginning and 158.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,070 INFO L168 Benchmark]: RCFGBuilder took 1158.20 ms. Allocated memory was 198.7 MB in the beginning and 222.3 MB in the end (delta: 23.6 MB). Free memory was 158.1 MB in the beginning and 184.6 MB in the end (delta: -26.5 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,071 INFO L168 Benchmark]: TraceAbstraction took 3619.54 ms. Allocated memory was 222.3 MB in the beginning and 263.7 MB in the end (delta: 41.4 MB). Free memory was 184.6 MB in the beginning and 142.3 MB in the end (delta: 42.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:08,075 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 820.81 ms. Allocated memory was 132.6 MB in the beginning and 198.7 MB in the end (delta: 66.1 MB). Free memory was 87.6 MB in the beginning and 162.4 MB in the end (delta: -74.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.18 ms. Allocated memory is still 198.7 MB. Free memory was 162.4 MB in the beginning and 158.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1158.20 ms. Allocated memory was 198.7 MB in the beginning and 222.3 MB in the end (delta: 23.6 MB). Free memory was 158.1 MB in the beginning and 184.6 MB in the end (delta: -26.5 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3619.54 ms. Allocated memory was 222.3 MB in the beginning and 263.7 MB in the end (delta: 41.4 MB). Free memory was 184.6 MB in the beginning and 142.3 MB in the end (delta: 42.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: 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 43 procedures, 252 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 918 SDtfs, 763 SDslu, 2123 SDs, 0 SdLazy, 807 SolverSat, 142 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred 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, 1.0795454545454546 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 162 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 43640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...