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_spec5_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:55,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:55,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:55,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:55,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:55,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:55,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:55,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:55,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:55,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:55,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:55,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:55,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:55,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:55,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:55,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:55,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:55,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:55,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:55,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:55,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:55,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:55,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:55,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:55,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:55,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:55,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:55,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:55,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:55,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:55,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:55,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:55,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:55,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:55,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:55,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:55,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:55,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:55,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:55,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:55,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:55,469 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 02:58:55,505 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:55,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:55,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:55,506 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:55,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:55,512 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:55,512 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:55,513 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:55,513 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:55,513 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:55,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:55,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:55,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:55,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:55,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:55,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:55,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:55,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:55,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:55,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:55,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:55,518 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:55,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:55,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:55,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:55,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:55,519 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:55,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:55,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:55,520 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:55,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:55,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:55,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:55,567 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:55,568 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:55,568 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product30.cil.c [2019-10-03 02:58:55,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199521149/788194400a404ed182032db43e4484f3/FLAGc582e33b7 [2019-10-03 02:58:56,252 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:56,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product30.cil.c [2019-10-03 02:58:56,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199521149/788194400a404ed182032db43e4484f3/FLAGc582e33b7 [2019-10-03 02:58:56,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199521149/788194400a404ed182032db43e4484f3 [2019-10-03 02:58:56,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:56,545 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:56,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:56,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:56,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:56,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:56" (1/1) ... [2019-10-03 02:58:56,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4db0f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:56, skipping insertion in model container [2019-10-03 02:58:56,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:56" (1/1) ... [2019-10-03 02:58:56,563 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:56,624 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:57,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:57,083 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:57,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:57,233 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:57,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57 WrapperNode [2019-10-03 02:58:57,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:57,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:57,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:57,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:57,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (1/1) ... [2019-10-03 02:58:57,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (1/1) ... [2019-10-03 02:58:57,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (1/1) ... [2019-10-03 02:58:57,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (1/1) ... [2019-10-03 02:58:57,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (1/1) ... [2019-10-03 02:58:57,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (1/1) ... [2019-10-03 02:58:57,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (1/1) ... [2019-10-03 02:58:57,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:57,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:57,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:57,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:57,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (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 02:58:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:57,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:58:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:58:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:58:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:57,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:58:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:58:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:58:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:58:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:57,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:58,602 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:58,603 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:58,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:58 BoogieIcfgContainer [2019-10-03 02:58:58,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:58,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:58,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:58,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:58,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:56" (1/3) ... [2019-10-03 02:58:58,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3943556b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:58, skipping insertion in model container [2019-10-03 02:58:58,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:57" (2/3) ... [2019-10-03 02:58:58,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3943556b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:58, skipping insertion in model container [2019-10-03 02:58:58,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:58" (3/3) ... [2019-10-03 02:58:58,616 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product30.cil.c [2019-10-03 02:58:58,627 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:58,641 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:58,658 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:58,687 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:58,687 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:58,687 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:58,687 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:58,688 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:58,688 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:58,688 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:58,688 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:58,707 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2019-10-03 02:58:58,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:58:58,721 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:58,722 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:58,724 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:58,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:58,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1955189829, now seen corresponding path program 1 times [2019-10-03 02:58:58,733 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:58,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:58,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:58,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:58,790 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:58:59,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:59,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:59,109 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:59,115 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:59,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:59,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:59,134 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 2 states. [2019-10-03 02:58:59,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:59,165 INFO L93 Difference]: Finished difference Result 147 states and 171 transitions. [2019-10-03 02:58:59,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:59,168 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:58:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:59,180 INFO L225 Difference]: With dead ends: 147 [2019-10-03 02:58:59,180 INFO L226 Difference]: Without dead ends: 136 [2019-10-03 02:58:59,182 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 02:58:59,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-03 02:58:59,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-10-03 02:58:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-03 02:58:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2019-10-03 02:58:59,234 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 59 [2019-10-03 02:58:59,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:59,235 INFO L475 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2019-10-03 02:58:59,235 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:59,235 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2019-10-03 02:58:59,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:58:59,239 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:59,240 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:59,240 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:59,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1233948209, now seen corresponding path program 1 times [2019-10-03 02:58:59,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:59,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:59,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:59,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:59,244 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:58:59,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:59,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:59,442 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:59,444 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:59,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:59,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:59,446 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 3 states. [2019-10-03 02:58:59,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:59,476 INFO L93 Difference]: Finished difference Result 127 states and 147 transitions. [2019-10-03 02:58:59,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:59,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:58:59,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:59,484 INFO L225 Difference]: With dead ends: 127 [2019-10-03 02:58:59,484 INFO L226 Difference]: Without dead ends: 127 [2019-10-03 02:58:59,485 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 02:58:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-03 02:58:59,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-10-03 02:58:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-03 02:58:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2019-10-03 02:58:59,512 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 60 [2019-10-03 02:58:59,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:59,513 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2019-10-03 02:58:59,513 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2019-10-03 02:58:59,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:58:59,518 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:59,518 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:59,519 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:59,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:59,519 INFO L82 PathProgramCache]: Analyzing trace with hash -385728390, now seen corresponding path program 1 times [2019-10-03 02:58:59,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:59,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:59,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:59,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:59,523 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:58:59,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:59,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:59,714 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:59,715 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:59,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:59,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:59,716 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 7 states. [2019-10-03 02:59:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:00,153 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2019-10-03 02:59:00,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:00,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-10-03 02:59:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:00,156 INFO L225 Difference]: With dead ends: 127 [2019-10-03 02:59:00,157 INFO L226 Difference]: Without dead ends: 127 [2019-10-03 02:59:00,157 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 02:59:00,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-03 02:59:00,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-10-03 02:59:00,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-03 02:59:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2019-10-03 02:59:00,170 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 65 [2019-10-03 02:59:00,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:00,172 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2019-10-03 02:59:00,172 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:00,172 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2019-10-03 02:59:00,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-03 02:59:00,175 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:00,175 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:00,175 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:00,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:00,176 INFO L82 PathProgramCache]: Analyzing trace with hash -834881370, now seen corresponding path program 1 times [2019-10-03 02:59:00,176 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:00,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:00,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:00,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:00,179 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:59:00,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:00,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:00,379 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:00,382 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:00,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:00,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:00,383 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 7 states. [2019-10-03 02:59:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:00,782 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2019-10-03 02:59:00,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:59:00,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-03 02:59:00,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:00,783 INFO L225 Difference]: With dead ends: 90 [2019-10-03 02:59:00,783 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:00,784 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 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 02:59:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:00,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:00,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:00,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2019-10-03 02:59:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:00,786 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:00,786 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:00,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:00,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:00 BoogieIcfgContainer [2019-10-03 02:59:00,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:00,802 INFO L168 Benchmark]: Toolchain (without parser) took 4254.05 ms. Allocated memory was 138.4 MB in the beginning and 264.2 MB in the end (delta: 125.8 MB). Free memory was 84.3 MB in the beginning and 167.9 MB in the end (delta: -83.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:00,803 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:00,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.04 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.0 MB in the beginning and 162.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:00,807 INFO L168 Benchmark]: Boogie Preprocessor took 102.72 ms. Allocated memory is still 198.2 MB. Free memory was 162.4 MB in the beginning and 158.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:00,808 INFO L168 Benchmark]: RCFGBuilder took 1266.83 ms. Allocated memory was 198.2 MB in the beginning and 220.2 MB in the end (delta: 22.0 MB). Free memory was 158.1 MB in the beginning and 187.8 MB in the end (delta: -29.7 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:00,810 INFO L168 Benchmark]: TraceAbstraction took 2190.41 ms. Allocated memory was 220.2 MB in the beginning and 264.2 MB in the end (delta: 44.0 MB). Free memory was 187.8 MB in the beginning and 167.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:00,819 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 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.04 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.0 MB in the beginning and 162.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.72 ms. Allocated memory is still 198.2 MB. Free memory was 162.4 MB in the beginning and 158.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1266.83 ms. Allocated memory was 198.2 MB in the beginning and 220.2 MB in the end (delta: 22.0 MB). Free memory was 158.1 MB in the beginning and 187.8 MB in the end (delta: -29.7 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2190.41 ms. Allocated memory was 220.2 MB in the beginning and 264.2 MB in the end (delta: 44.0 MB). Free memory was 187.8 MB in the beginning and 167.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 787]: 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 42 procedures, 245 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 533 SDtfs, 305 SDslu, 558 SDs, 0 SdLazy, 325 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 29362 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...