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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:05,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:05,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:05,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:05,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:05,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:05,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:05,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:05,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:05,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:05,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:05,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:05,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:05,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:05,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:05,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:05,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:05,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:05,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:05,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:05,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:05,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:05,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:05,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:05,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:05,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:05,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:05,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:05,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:05,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:05,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:05,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:05,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:05,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:05,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:05,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:05,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:05,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:05,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:05,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:05,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:05,413 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 13:31:05,434 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:05,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:05,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:05,435 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:05,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:05,437 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:05,437 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:05,437 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:05,437 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:05,438 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:05,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:05,439 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:05,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:05,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:05,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:05,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:05,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:05,441 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:05,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:05,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:05,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:05,442 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:05,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:05,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:05,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:05,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:05,443 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:05,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:05,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:05,444 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:05,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:05,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:05,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:05,497 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:05,497 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:05,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product64.cil.c [2019-09-20 13:31:05,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f3ee35d/60941afd15d545668c56962b04652109/FLAGe39668fe3 [2019-09-20 13:31:06,149 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:06,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product64.cil.c [2019-09-20 13:31:06,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f3ee35d/60941afd15d545668c56962b04652109/FLAGe39668fe3 [2019-09-20 13:31:06,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f3ee35d/60941afd15d545668c56962b04652109 [2019-09-20 13:31:06,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:06,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:06,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:06,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:06,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:06,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:06" (1/1) ... [2019-09-20 13:31:06,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8899ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:06, skipping insertion in model container [2019-09-20 13:31:06,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:06" (1/1) ... [2019-09-20 13:31:06,382 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:06,441 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:06,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:06,935 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:07,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:07,093 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:07,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07 WrapperNode [2019-09-20 13:31:07,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:07,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:07,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:07,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:07,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:07,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:07,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:07,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:07,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (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 13:31:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:31:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:31:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:31:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:08,408 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:08,408 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:08,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:08 BoogieIcfgContainer [2019-09-20 13:31:08,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:08,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:08,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:08,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:08,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:06" (1/3) ... [2019-09-20 13:31:08,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41cd8226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:08, skipping insertion in model container [2019-09-20 13:31:08,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07" (2/3) ... [2019-09-20 13:31:08,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41cd8226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:08, skipping insertion in model container [2019-09-20 13:31:08,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:08" (3/3) ... [2019-09-20 13:31:08,420 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2019-09-20 13:31:08,430 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:08,439 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:08,456 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:08,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:08,486 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:08,487 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:08,487 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:08,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:08,487 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:08,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:08,488 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-09-20 13:31:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:31:08,528 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:08,529 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 13:31:08,532 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:08,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:08,538 INFO L82 PathProgramCache]: Analyzing trace with hash 22774911, now seen corresponding path program 1 times [2019-09-20 13:31:08,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:08,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:08,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:08,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:08,596 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:08,904 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 13:31:08,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:08,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:08,907 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:08,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:08,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:08,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:08,933 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 2 states. [2019-09-20 13:31:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:08,974 INFO L93 Difference]: Finished difference Result 174 states and 205 transitions. [2019-09-20 13:31:08,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:08,975 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:31:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:08,987 INFO L225 Difference]: With dead ends: 174 [2019-09-20 13:31:08,987 INFO L226 Difference]: Without dead ends: 163 [2019-09-20 13:31:08,989 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 13:31:09,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-09-20 13:31:09,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2019-09-20 13:31:09,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-09-20 13:31:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2019-09-20 13:31:09,050 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 46 [2019-09-20 13:31:09,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:09,051 INFO L475 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2019-09-20 13:31:09,051 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2019-09-20 13:31:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:31:09,057 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:09,060 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 13:31:09,060 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:09,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1731168874, now seen corresponding path program 1 times [2019-09-20 13:31:09,061 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:09,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:09,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:09,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:09,066 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:09,222 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 13:31:09,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:09,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:09,222 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:09,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:09,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:09,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:09,226 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 3 states. [2019-09-20 13:31:09,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:09,263 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2019-09-20 13:31:09,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:09,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:31:09,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:09,271 INFO L225 Difference]: With dead ends: 154 [2019-09-20 13:31:09,271 INFO L226 Difference]: Without dead ends: 154 [2019-09-20 13:31:09,272 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 13:31:09,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-09-20 13:31:09,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-09-20 13:31:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-09-20 13:31:09,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 181 transitions. [2019-09-20 13:31:09,290 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 181 transitions. Word has length 47 [2019-09-20 13:31:09,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:09,290 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 181 transitions. [2019-09-20 13:31:09,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 181 transitions. [2019-09-20 13:31:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:31:09,299 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:09,302 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 13:31:09,303 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:09,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash -976432514, now seen corresponding path program 1 times [2019-09-20 13:31:09,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:09,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:09,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:09,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:09,308 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:09,518 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 13:31:09,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:09,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:09,521 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:09,521 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:09,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:09,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:09,522 INFO L87 Difference]: Start difference. First operand 154 states and 181 transitions. Second operand 7 states. [2019-09-20 13:31:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:10,116 INFO L93 Difference]: Finished difference Result 334 states and 402 transitions. [2019-09-20 13:31:10,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:10,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:31:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:10,124 INFO L225 Difference]: With dead ends: 334 [2019-09-20 13:31:10,127 INFO L226 Difference]: Without dead ends: 334 [2019-09-20 13:31:10,127 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 13:31:10,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-09-20 13:31:10,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 322. [2019-09-20 13:31:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-09-20 13:31:10,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 390 transitions. [2019-09-20 13:31:10,199 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 390 transitions. Word has length 52 [2019-09-20 13:31:10,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:10,200 INFO L475 AbstractCegarLoop]: Abstraction has 322 states and 390 transitions. [2019-09-20 13:31:10,200 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:10,200 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 390 transitions. [2019-09-20 13:31:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:31:10,203 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:10,204 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 13:31:10,204 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:10,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:10,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1952402222, now seen corresponding path program 1 times [2019-09-20 13:31:10,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:10,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:10,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,208 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:10,349 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 13:31:10,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:10,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:31:10,349 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:10,350 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:31:10,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:31:10,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:10,350 INFO L87 Difference]: Start difference. First operand 322 states and 390 transitions. Second operand 10 states. [2019-09-20 13:31:11,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:11,182 INFO L93 Difference]: Finished difference Result 870 states and 1099 transitions. [2019-09-20 13:31:11,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:31:11,183 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-20 13:31:11,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:11,192 INFO L225 Difference]: With dead ends: 870 [2019-09-20 13:31:11,192 INFO L226 Difference]: Without dead ends: 870 [2019-09-20 13:31:11,193 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 13:31:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-09-20 13:31:11,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 858. [2019-09-20 13:31:11,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2019-09-20 13:31:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1078 transitions. [2019-09-20 13:31:11,270 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1078 transitions. Word has length 57 [2019-09-20 13:31:11,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:11,271 INFO L475 AbstractCegarLoop]: Abstraction has 858 states and 1078 transitions. [2019-09-20 13:31:11,271 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:31:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1078 transitions. [2019-09-20 13:31:11,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:31:11,275 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:11,275 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 13:31:11,276 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:11,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:11,276 INFO L82 PathProgramCache]: Analyzing trace with hash 474058772, now seen corresponding path program 1 times [2019-09-20 13:31:11,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:11,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:11,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:11,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:11,280 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:11,400 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 13:31:11,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:11,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:11,400 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:11,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:11,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:11,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:11,403 INFO L87 Difference]: Start difference. First operand 858 states and 1078 transitions. Second operand 4 states. [2019-09-20 13:31:11,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:11,836 INFO L93 Difference]: Finished difference Result 1321 states and 1707 transitions. [2019-09-20 13:31:11,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:31:11,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-20 13:31:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:11,847 INFO L225 Difference]: With dead ends: 1321 [2019-09-20 13:31:11,847 INFO L226 Difference]: Without dead ends: 1321 [2019-09-20 13:31:11,847 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 13:31:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2019-09-20 13:31:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1183. [2019-09-20 13:31:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-09-20 13:31:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1468 transitions. [2019-09-20 13:31:11,908 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1468 transitions. Word has length 61 [2019-09-20 13:31:11,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:11,909 INFO L475 AbstractCegarLoop]: Abstraction has 1183 states and 1468 transitions. [2019-09-20 13:31:11,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:11,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1468 transitions. [2019-09-20 13:31:11,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:31:11,913 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:11,913 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 13:31:11,913 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:11,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:11,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1364424505, now seen corresponding path program 1 times [2019-09-20 13:31:11,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:11,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:11,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:11,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:11,917 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:12,043 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 13:31:12,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:12,044 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:12,046 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2019-09-20 13:31:12,048 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], [356], [357], [450], [451], [461], [469], [470], [471], [472], [473], [475], [476], [477], [478], [479], [480], [481], [482], [483], [527], [528], [533], [534], [535], [536], [549], [550], [573], [581], [582], [583] [2019-09-20 13:31:12,095 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:12,095 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:12,181 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:12,183 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 13:31:12,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:12,187 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:12,237 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:12,237 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:12,240 INFO L420 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2019-09-20 13:31:12,240 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:12,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:12,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:31:12,242 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:12,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:12,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:12,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:12,243 INFO L87 Difference]: Start difference. First operand 1183 states and 1468 transitions. Second operand 2 states. [2019-09-20 13:31:12,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:12,243 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:12,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:12,244 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 89 [2019-09-20 13:31:12,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:12,244 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:12,244 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:12,245 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 13:31:12,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:12,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:12,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-20 13:31:12,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:12,246 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:12,246 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:12,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:12,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:12,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:12 BoogieIcfgContainer [2019-09-20 13:31:12,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:12,260 INFO L168 Benchmark]: Toolchain (without parser) took 5888.56 ms. Allocated memory was 138.4 MB in the beginning and 267.4 MB in the end (delta: 129.0 MB). Free memory was 84.1 MB in the beginning and 126.2 MB in the end (delta: -42.1 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:12,261 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:12,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.26 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 83.9 MB in the beginning and 163.6 MB in the end (delta: -79.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:12,263 INFO L168 Benchmark]: Boogie Preprocessor took 92.03 ms. Allocated memory is still 198.7 MB. Free memory was 163.6 MB in the beginning and 159.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:12,264 INFO L168 Benchmark]: RCFGBuilder took 1224.99 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 159.1 MB in the beginning and 186.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:12,265 INFO L168 Benchmark]: TraceAbstraction took 3838.82 ms. Allocated memory was 220.2 MB in the beginning and 267.4 MB in the end (delta: 47.2 MB). Free memory was 186.4 MB in the beginning and 126.2 MB in the end (delta: 60.2 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:12,272 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.26 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 83.9 MB in the beginning and 163.6 MB in the end (delta: -79.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.03 ms. Allocated memory is still 198.7 MB. Free memory was 163.6 MB in the beginning and 159.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1224.99 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 159.1 MB in the beginning and 186.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3838.82 ms. Allocated memory was 220.2 MB in the beginning and 267.4 MB in the end (delta: 47.2 MB). Free memory was 186.4 MB in the beginning and 126.2 MB in the end (delta: 60.2 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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 44 procedures, 262 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1003 SDtfs, 937 SDslu, 2257 SDs, 0 SdLazy, 912 SolverSat, 218 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s 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=1183occurred 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...