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_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:58,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:58,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:58,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:58,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:58,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:58,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:58,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:58,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:58,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:58,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:58,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:58,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:58,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:58,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:58,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:58,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:58,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:58,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:58,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:58,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:58,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:58,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:58,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:58,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:58,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:58,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:58,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:58,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:58,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:58,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:58,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:58,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:58,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:58,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:58,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:58,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:58,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:58,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:58,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:58,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:58,386 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 13:30:58,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:58,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:58,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:58,402 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:58,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:58,403 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:58,403 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:58,404 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:58,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:58,404 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:58,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:58,405 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:58,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:58,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:58,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:58,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:58,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:58,406 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:58,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:58,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:58,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:58,407 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:58,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:58,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:58,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:58,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:58,408 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:58,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:58,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:58,409 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:58,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:58,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:58,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:58,460 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:58,462 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:58,463 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-09-20 13:30:58,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0733252/6a6b534e5b7b4c5b8039f5e9ba3261ba/FLAG003fc4711 [2019-09-20 13:30:59,050 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:59,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-09-20 13:30:59,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0733252/6a6b534e5b7b4c5b8039f5e9ba3261ba/FLAG003fc4711 [2019-09-20 13:30:59,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0733252/6a6b534e5b7b4c5b8039f5e9ba3261ba [2019-09-20 13:30:59,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:59,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:59,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:59,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:59,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:59,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:59" (1/1) ... [2019-09-20 13:30:59,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63929776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:59, skipping insertion in model container [2019-09-20 13:30:59,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:59" (1/1) ... [2019-09-20 13:30:59,353 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:59,425 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:59,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:59,957 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:00,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:00,108 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:00,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00 WrapperNode [2019-09-20 13:31:00,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:00,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:00,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:00,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:00,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (1/1) ... [2019-09-20 13:31:00,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (1/1) ... [2019-09-20 13:31:00,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (1/1) ... [2019-09-20 13:31:00,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (1/1) ... [2019-09-20 13:31:00,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (1/1) ... [2019-09-20 13:31:00,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (1/1) ... [2019-09-20 13:31:00,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (1/1) ... [2019-09-20 13:31:00,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:00,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:00,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:00,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:00,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (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 13:31:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:00,308 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:00,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:00,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:00,309 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:00,309 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:00,310 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:00,311 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:00,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:00,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:00,311 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:00,314 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:00,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:00,314 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:00,317 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:00,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:31:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:01,514 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:01,515 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:01,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:01 BoogieIcfgContainer [2019-09-20 13:31:01,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:01,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:01,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:01,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:01,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:59" (1/3) ... [2019-09-20 13:31:01,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c66b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:01, skipping insertion in model container [2019-09-20 13:31:01,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:00" (2/3) ... [2019-09-20 13:31:01,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c66b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:01, skipping insertion in model container [2019-09-20 13:31:01,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:01" (3/3) ... [2019-09-20 13:31:01,526 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2019-09-20 13:31:01,537 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:01,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:01,564 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:01,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:01,593 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:01,593 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:01,593 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:01,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:01,594 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:01,594 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:01,594 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-09-20 13:31:01,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:31:01,629 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:01,630 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 13:31:01,633 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:01,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:01,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1045855625, now seen corresponding path program 1 times [2019-09-20 13:31:01,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:01,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:01,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:01,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:01,704 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:01,988 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 13:31:01,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:01,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:01,991 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:01,997 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:02,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:02,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:02,019 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-09-20 13:31:02,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:02,052 INFO L93 Difference]: Finished difference Result 157 states and 184 transitions. [2019-09-20 13:31:02,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:02,053 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:31:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:02,067 INFO L225 Difference]: With dead ends: 157 [2019-09-20 13:31:02,068 INFO L226 Difference]: Without dead ends: 146 [2019-09-20 13:31:02,070 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 13:31:02,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-09-20 13:31:02,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-09-20 13:31:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-09-20 13:31:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2019-09-20 13:31:02,121 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 46 [2019-09-20 13:31:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:02,122 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2019-09-20 13:31:02,122 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2019-09-20 13:31:02,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:31:02,126 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:02,126 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 13:31:02,126 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:02,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:02,127 INFO L82 PathProgramCache]: Analyzing trace with hash -334246685, now seen corresponding path program 1 times [2019-09-20 13:31:02,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:02,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:02,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:02,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:02,130 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:02,261 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 13:31:02,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:02,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:02,262 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:02,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:02,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:02,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:02,265 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 3 states. [2019-09-20 13:31:02,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:02,282 INFO L93 Difference]: Finished difference Result 137 states and 160 transitions. [2019-09-20 13:31:02,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:02,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:31:02,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:02,286 INFO L225 Difference]: With dead ends: 137 [2019-09-20 13:31:02,286 INFO L226 Difference]: Without dead ends: 137 [2019-09-20 13:31:02,287 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 13:31:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-09-20 13:31:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-09-20 13:31:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-09-20 13:31:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2019-09-20 13:31:02,301 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 47 [2019-09-20 13:31:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:02,302 INFO L475 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2019-09-20 13:31:02,302 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:02,302 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2019-09-20 13:31:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:31:02,304 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:02,304 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] [2019-09-20 13:31:02,305 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:02,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:02,305 INFO L82 PathProgramCache]: Analyzing trace with hash 20699943, now seen corresponding path program 1 times [2019-09-20 13:31:02,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:02,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:02,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:02,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:02,308 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:02,423 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 13:31:02,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:02,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:02,424 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:02,426 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:02,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:02,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:02,427 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2019-09-20 13:31:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:02,453 INFO L93 Difference]: Finished difference Result 137 states and 159 transitions. [2019-09-20 13:31:02,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:02,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-20 13:31:02,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:02,461 INFO L225 Difference]: With dead ends: 137 [2019-09-20 13:31:02,461 INFO L226 Difference]: Without dead ends: 137 [2019-09-20 13:31:02,463 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 13:31:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-09-20 13:31:02,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-09-20 13:31:02,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-09-20 13:31:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2019-09-20 13:31:02,485 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 51 [2019-09-20 13:31:02,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:02,487 INFO L475 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2019-09-20 13:31:02,488 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:02,488 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2019-09-20 13:31:02,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:31:02,494 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:02,494 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] [2019-09-20 13:31:02,495 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:02,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:02,495 INFO L82 PathProgramCache]: Analyzing trace with hash 134260403, now seen corresponding path program 1 times [2019-09-20 13:31:02,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:02,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:02,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:02,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:02,501 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:02,678 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 13:31:02,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:02,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:02,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:02,680 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:02,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:02,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:02,681 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 5 states. [2019-09-20 13:31:03,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:03,337 INFO L93 Difference]: Finished difference Result 239 states and 274 transitions. [2019-09-20 13:31:03,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:03,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-20 13:31:03,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:03,341 INFO L225 Difference]: With dead ends: 239 [2019-09-20 13:31:03,342 INFO L226 Difference]: Without dead ends: 239 [2019-09-20 13:31:03,342 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:03,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-09-20 13:31:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 221. [2019-09-20 13:31:03,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-09-20 13:31:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 250 transitions. [2019-09-20 13:31:03,362 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 250 transitions. Word has length 69 [2019-09-20 13:31:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:03,363 INFO L475 AbstractCegarLoop]: Abstraction has 221 states and 250 transitions. [2019-09-20 13:31:03,363 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:03,363 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 250 transitions. [2019-09-20 13:31:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:31:03,365 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:03,365 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, 1, 1, 1, 1] [2019-09-20 13:31:03,366 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:03,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:03,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1484828875, now seen corresponding path program 1 times [2019-09-20 13:31:03,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:03,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:03,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:03,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:03,369 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:03,553 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 13:31:03,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:03,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:31:03,553 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:03,555 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:31:03,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:31:03,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:03,556 INFO L87 Difference]: Start difference. First operand 221 states and 250 transitions. Second operand 10 states. [2019-09-20 13:31:04,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:04,213 INFO L93 Difference]: Finished difference Result 506 states and 599 transitions. [2019-09-20 13:31:04,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:31:04,214 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-09-20 13:31:04,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:04,220 INFO L225 Difference]: With dead ends: 506 [2019-09-20 13:31:04,220 INFO L226 Difference]: Without dead ends: 506 [2019-09-20 13:31:04,221 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 13:31:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-09-20 13:31:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 496. [2019-09-20 13:31:04,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2019-09-20 13:31:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 582 transitions. [2019-09-20 13:31:04,286 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 582 transitions. Word has length 83 [2019-09-20 13:31:04,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:04,287 INFO L475 AbstractCegarLoop]: Abstraction has 496 states and 582 transitions. [2019-09-20 13:31:04,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:31:04,288 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 582 transitions. [2019-09-20 13:31:04,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-09-20 13:31:04,292 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:04,293 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] [2019-09-20 13:31:04,293 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:04,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:04,294 INFO L82 PathProgramCache]: Analyzing trace with hash -2031940663, now seen corresponding path program 1 times [2019-09-20 13:31:04,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:04,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:04,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:04,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:04,299 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:04,497 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:31:04,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:04,498 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:04,499 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2019-09-20 13:31:04,502 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [132], [134], [135], [138], [140], [143], [150], [153], [155], [164], [168], [172], [178], [180], [186], [188], [191], [217], [218], [219], [221], [224], [228], [229], [230], [231], [234], [237], [241], [247], [274], [275], [278], [282], [283], [286], [288], [291], [301], [309], [312], [327], [330], [331], [332], [333], [356], [358], [359], [360], [361], [426], [427], [437], [445], [446], [447], [448], [449], [451], [452], [453], [454], [455], [456], [457], [458], [459], [493], [494], [495], [496], [499], [500], [505], [506], [509], [510], [511], [512], [513], [514], [515], [516], [521], [522], [523], [524], [535], [536], [539], [541], [542], [547], [548], [549] [2019-09-20 13:31:04,553 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:04,553 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:04,654 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:04,656 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. [2019-09-20 13:31:04,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:04,661 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:04,746 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:04,747 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:04,753 INFO L420 sIntCurrentIteration]: We unified 130 AI predicates to 130 [2019-09-20 13:31:04,753 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:04,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:04,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-20 13:31:04,755 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:04,756 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:04,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:04,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:04,757 INFO L87 Difference]: Start difference. First operand 496 states and 582 transitions. Second operand 2 states. [2019-09-20 13:31:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:04,758 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:04,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:04,758 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 131 [2019-09-20 13:31:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:04,758 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:04,759 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:04,759 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 13:31:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:04,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:04,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:04,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2019-09-20 13:31:04,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:04,760 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:04,760 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:04,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:04,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:04 BoogieIcfgContainer [2019-09-20 13:31:04,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:04,773 INFO L168 Benchmark]: Toolchain (without parser) took 5437.67 ms. Allocated memory was 129.5 MB in the beginning and 277.3 MB in the end (delta: 147.8 MB). Free memory was 84.0 MB in the beginning and 223.9 MB in the end (delta: -139.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:04,774 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 129.5 MB. Free memory is still 103.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:31:04,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.39 ms. Allocated memory was 129.5 MB in the beginning and 197.7 MB in the end (delta: 68.2 MB). Free memory was 84.0 MB in the beginning and 158.8 MB in the end (delta: -74.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:04,778 INFO L168 Benchmark]: Boogie Preprocessor took 121.58 ms. Allocated memory is still 197.7 MB. Free memory was 158.8 MB in the beginning and 154.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:04,779 INFO L168 Benchmark]: RCFGBuilder took 1283.96 ms. Allocated memory was 197.7 MB in the beginning and 214.4 MB in the end (delta: 16.8 MB). Free memory was 154.8 MB in the beginning and 182.8 MB in the end (delta: -28.0 MB). Peak memory consumption was 94.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:04,781 INFO L168 Benchmark]: TraceAbstraction took 3250.06 ms. Allocated memory was 214.4 MB in the beginning and 277.3 MB in the end (delta: 62.9 MB). Free memory was 181.3 MB in the beginning and 223.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:04,790 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 129.5 MB. Free memory is still 103.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.39 ms. Allocated memory was 129.5 MB in the beginning and 197.7 MB in the end (delta: 68.2 MB). Free memory was 84.0 MB in the beginning and 158.8 MB in the end (delta: -74.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.58 ms. Allocated memory is still 197.7 MB. Free memory was 158.8 MB in the beginning and 154.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.96 ms. Allocated memory was 197.7 MB in the beginning and 214.4 MB in the end (delta: 16.8 MB). Free memory was 154.8 MB in the beginning and 182.8 MB in the end (delta: -28.0 MB). Peak memory consumption was 94.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3250.06 ms. Allocated memory was 214.4 MB in the beginning and 277.3 MB in the end (delta: 62.9 MB). Free memory was 181.3 MB in the beginning and 223.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: 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, 245 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 884 SDtfs, 575 SDslu, 1624 SDs, 0 SdLazy, 638 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=496occurred 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, 0.9153846153846154 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 427 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 421 ConstructedInterpolants, 0 QuantifiedInterpolants, 51987 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 22/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...