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_spec1_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:56:44,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:56:44,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:56:44,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:56:44,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:56:44,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:56:44,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:56:44,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:56:44,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:56:44,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:56:44,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:56:44,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:56:44,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:56:44,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:56:44,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:56:44,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:56:44,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:56:44,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:56:44,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:56:44,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:56:44,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:56:44,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:56:44,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:56:44,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:56:44,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:56:44,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:56:44,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:56:44,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:56:44,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:56:44,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:56:44,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:56:44,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:56:44,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:56:44,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:56:44,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:56:44,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:56:44,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:56:44,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:56:44,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:56:44,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:56:44,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:56:44,344 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 [2019-10-03 02:56:44,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:56:44,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:56:44,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:56:44,361 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:56:44,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:56:44,362 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:56:44,363 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:56:44,363 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:56:44,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:56:44,363 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:56:44,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:56:44,364 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:56:44,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:56:44,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:56:44,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:56:44,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:56:44,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:56:44,366 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:56:44,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:56:44,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:56:44,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:56:44,367 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:56:44,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:56:44,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:44,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:56:44,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:56:44,368 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:56:44,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:56:44,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:56:44,369 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:56:44,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:56:44,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:56:44,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:56:44,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:56:44,434 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:56:44,435 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2019-10-03 02:56:44,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93157ed5/281e3029f4d5458989943b61e28e2a4a/FLAG604f7e068 [2019-10-03 02:56:45,029 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:56:45,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2019-10-03 02:56:45,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93157ed5/281e3029f4d5458989943b61e28e2a4a/FLAG604f7e068 [2019-10-03 02:56:45,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93157ed5/281e3029f4d5458989943b61e28e2a4a [2019-10-03 02:56:45,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:56:45,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:56:45,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:45,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:56:45,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:56:45,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb33164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:45, skipping insertion in model container [2019-10-03 02:56:45,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:45" (1/1) ... [2019-10-03 02:56:45,364 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:56:45,422 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:56:45,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:45,964 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:56:46,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:46,078 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:56:46,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46 WrapperNode [2019-10-03 02:56:46,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:46,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:56:46,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:56:46,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:56:46,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (1/1) ... [2019-10-03 02:56:46,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (1/1) ... [2019-10-03 02:56:46,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (1/1) ... [2019-10-03 02:56:46,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (1/1) ... [2019-10-03 02:56:46,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (1/1) ... [2019-10-03 02:56:46,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (1/1) ... [2019-10-03 02:56:46,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (1/1) ... [2019-10-03 02:56:46,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:56:46,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:56:46,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:56:46,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:56:46,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (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 [2019-10-03 02:56:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:56:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:56:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:56:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:56:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:56:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:56:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:56:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:56:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:56:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:56:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:56:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:56:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:56:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:56:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:56:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:56:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:56:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:56:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:56:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:56:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:56:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:56:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:56:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:56:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:56:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:56:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:56:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:56:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:56:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:56:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:56:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:56:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:56:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:56:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:56:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:56:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:56:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:56:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:56:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:56:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:56:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:56:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:56:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:56:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:56:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:56:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:56:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:56:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:56:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:56:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:56:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:56:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:56:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:56:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:56:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:56:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:56:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:56:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:56:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:56:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:56:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:56:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:56:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:56:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:56:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:56:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:56:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:56:47,417 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:56:47,418 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:56:47,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:47 BoogieIcfgContainer [2019-10-03 02:56:47,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:56:47,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:56:47,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:56:47,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:56:47,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:56:45" (1/3) ... [2019-10-03 02:56:47,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bf1648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:47, skipping insertion in model container [2019-10-03 02:56:47,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:46" (2/3) ... [2019-10-03 02:56:47,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bf1648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:47, skipping insertion in model container [2019-10-03 02:56:47,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:47" (3/3) ... [2019-10-03 02:56:47,428 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2019-10-03 02:56:47,438 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:56:47,447 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:56:47,465 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:56:47,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:56:47,494 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:56:47,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:56:47,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:56:47,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:56:47,495 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:56:47,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:56:47,495 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:56:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-10-03 02:56:47,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:56:47,528 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:47,529 INFO L411 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] [2019-10-03 02:56:47,532 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:47,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:47,538 INFO L82 PathProgramCache]: Analyzing trace with hash -579503405, now seen corresponding path program 1 times [2019-10-03 02:56:47,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:47,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:47,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:47,604 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:47,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:47,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:56:47,886 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:47,893 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:56:47,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:56:47,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:47,914 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-10-03 02:56:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:47,944 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2019-10-03 02:56:47,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:56:47,946 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:56:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:47,959 INFO L225 Difference]: With dead ends: 119 [2019-10-03 02:56:47,959 INFO L226 Difference]: Without dead ends: 108 [2019-10-03 02:56:47,961 INFO L640 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 [2019-10-03 02:56:47,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-03 02:56:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-03 02:56:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-03 02:56:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2019-10-03 02:56:48,026 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 46 [2019-10-03 02:56:48,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:48,026 INFO L475 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2019-10-03 02:56:48,027 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:56:48,027 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2019-10-03 02:56:48,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:56:48,030 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:48,030 INFO L411 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] [2019-10-03 02:56:48,030 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:48,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:48,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1270890065, now seen corresponding path program 1 times [2019-10-03 02:56:48,031 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:48,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:48,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,034 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:48,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:48,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:48,189 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:48,192 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:48,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:48,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:48,193 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 3 states. [2019-10-03 02:56:48,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:48,220 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2019-10-03 02:56:48,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:48,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:56:48,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:48,227 INFO L225 Difference]: With dead ends: 99 [2019-10-03 02:56:48,228 INFO L226 Difference]: Without dead ends: 99 [2019-10-03 02:56:48,229 INFO L640 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 [2019-10-03 02:56:48,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-10-03 02:56:48,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-10-03 02:56:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-10-03 02:56:48,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2019-10-03 02:56:48,247 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 47 [2019-10-03 02:56:48,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:48,247 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2019-10-03 02:56:48,247 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:48,248 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2019-10-03 02:56:48,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:56:48,250 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:48,250 INFO L411 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] [2019-10-03 02:56:48,250 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:48,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:48,251 INFO L82 PathProgramCache]: Analyzing trace with hash 370634137, now seen corresponding path program 1 times [2019-10-03 02:56:48,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:48,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:48,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,254 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:48,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:48,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:48,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:56:48,380 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:48,381 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:56:48,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:56:48,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:56:48,381 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 7 states. [2019-10-03 02:56:48,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:48,754 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2019-10-03 02:56:48,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:56:48,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-03 02:56:48,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:48,758 INFO L225 Difference]: With dead ends: 99 [2019-10-03 02:56:48,758 INFO L226 Difference]: Without dead ends: 99 [2019-10-03 02:56:48,759 INFO L640 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 [2019-10-03 02:56:48,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-10-03 02:56:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-10-03 02:56:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-10-03 02:56:48,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2019-10-03 02:56:48,783 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 52 [2019-10-03 02:56:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:48,787 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2019-10-03 02:56:48,787 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:56:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2019-10-03 02:56:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:56:48,790 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:48,794 INFO L411 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] [2019-10-03 02:56:48,794 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:48,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:48,795 INFO L82 PathProgramCache]: Analyzing trace with hash -897507814, now seen corresponding path program 1 times [2019-10-03 02:56:48,795 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:48,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:48,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:48,799 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:49,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:49,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:49,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:56:49,010 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:49,011 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:56:49,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:56:49,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:56:49,012 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 6 states. [2019-10-03 02:56:49,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:49,259 INFO L93 Difference]: Finished difference Result 167 states and 192 transitions. [2019-10-03 02:56:49,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:49,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-10-03 02:56:49,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:49,266 INFO L225 Difference]: With dead ends: 167 [2019-10-03 02:56:49,268 INFO L226 Difference]: Without dead ends: 167 [2019-10-03 02:56:49,268 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:56:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-10-03 02:56:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2019-10-03 02:56:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-10-03 02:56:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 190 transitions. [2019-10-03 02:56:49,295 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 190 transitions. Word has length 60 [2019-10-03 02:56:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:49,295 INFO L475 AbstractCegarLoop]: Abstraction has 165 states and 190 transitions. [2019-10-03 02:56:49,295 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:56:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 190 transitions. [2019-10-03 02:56:49,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:56:49,298 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:49,298 INFO L411 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] [2019-10-03 02:56:49,298 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:49,299 INFO L82 PathProgramCache]: Analyzing trace with hash 824132758, now seen corresponding path program 1 times [2019-10-03 02:56:49,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:49,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:49,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:49,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:49,305 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:49,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:49,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:56:49,407 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:49,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:56:49,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:56:49,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:56:49,408 INFO L87 Difference]: Start difference. First operand 165 states and 190 transitions. Second operand 7 states. [2019-10-03 02:56:49,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:49,774 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-10-03 02:56:49,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:49,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-10-03 02:56:49,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:49,775 INFO L225 Difference]: With dead ends: 120 [2019-10-03 02:56:49,776 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:56:49,776 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:56:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:56:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:56:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:56:49,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:56:49,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2019-10-03 02:56:49,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:49,777 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:56:49,778 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:56:49,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:56:49,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:56:49,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:56:49 BoogieIcfgContainer [2019-10-03 02:56:49,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:56:49,788 INFO L168 Benchmark]: Toolchain (without parser) took 4439.98 ms. Allocated memory was 133.7 MB in the beginning and 257.4 MB in the end (delta: 123.7 MB). Free memory was 86.9 MB in the beginning and 145.6 MB in the end (delta: -58.7 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,789 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.81 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 164.6 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,792 INFO L168 Benchmark]: Boogie Preprocessor took 87.23 ms. Allocated memory is still 200.8 MB. Free memory was 164.6 MB in the beginning and 160.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,794 INFO L168 Benchmark]: RCFGBuilder took 1252.79 ms. Allocated memory was 200.8 MB in the beginning and 227.0 MB in the end (delta: 26.2 MB). Free memory was 160.3 MB in the beginning and 193.5 MB in the end (delta: -33.2 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,796 INFO L168 Benchmark]: TraceAbstraction took 2363.78 ms. Allocated memory was 227.0 MB in the beginning and 257.4 MB in the end (delta: 30.4 MB). Free memory was 193.5 MB in the beginning and 145.6 MB in the end (delta: 47.9 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:49,808 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 133.7 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.81 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 164.6 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.23 ms. Allocated memory is still 200.8 MB. Free memory was 164.6 MB in the beginning and 160.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1252.79 ms. Allocated memory was 200.8 MB in the beginning and 227.0 MB in the end (delta: 26.2 MB). Free memory was 160.3 MB in the beginning and 193.5 MB in the end (delta: -33.2 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2363.78 ms. Allocated memory was 227.0 MB in the beginning and 257.4 MB in the end (delta: 30.4 MB). Free memory was 193.5 MB in the beginning and 145.6 MB in the end (delta: 47.9 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 811]: 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 38 procedures, 218 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 543 SDtfs, 312 SDslu, 846 SDs, 0 SdLazy, 318 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 27132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...