java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:42,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:42,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:42,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:42,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:42,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:42,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:42,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:42,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:42,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:42,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:42,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:42,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:42,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:42,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:42,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:42,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:42,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:42,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:42,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:42,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:42,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:42,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:42,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:42,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:42,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:42,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:42,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:42,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:42,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:42,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:42,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:42,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:42,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:42,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:42,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:42,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:42,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:42,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:42,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:42,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:42,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:42,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:42,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:42,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:42,604 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:42,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:42,605 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:42,605 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:42,605 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:42,606 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:42,606 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:42,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:42,607 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:42,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:42,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:42,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:42,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:42,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:42,608 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:42,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:42,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:42,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:42,609 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:42,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:42,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:42,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:42,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:42,610 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:42,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:42,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:42,610 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:42,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:42,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:42,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:42,661 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:42,662 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:42,662 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2019-09-20 13:30:42,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6f04a1a/7272abd33c0e4827b493be44c057c4e8/FLAG031ba9079 [2019-09-20 13:30:43,278 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:43,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2019-09-20 13:30:43,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6f04a1a/7272abd33c0e4827b493be44c057c4e8/FLAG031ba9079 [2019-09-20 13:30:43,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6f04a1a/7272abd33c0e4827b493be44c057c4e8 [2019-09-20 13:30:43,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:43,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:43,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:43,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:43,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:43,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:43" (1/1) ... [2019-09-20 13:30:43,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412402a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:43, skipping insertion in model container [2019-09-20 13:30:43,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:43" (1/1) ... [2019-09-20 13:30:43,566 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:43,608 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:44,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:44,102 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:44,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:44,265 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:44,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44 WrapperNode [2019-09-20 13:30:44,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:44,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:44,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:44,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:44,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... [2019-09-20 13:30:44,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... [2019-09-20 13:30:44,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... [2019-09-20 13:30:44,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... [2019-09-20 13:30:44,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... [2019-09-20 13:30:44,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... [2019-09-20 13:30:44,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... [2019-09-20 13:30:44,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:44,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:44,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:44,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:44,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:44,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:30:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:30:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:45,509 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:45,511 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:45,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:45 BoogieIcfgContainer [2019-09-20 13:30:45,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:45,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:45,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:45,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:45,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:43" (1/3) ... [2019-09-20 13:30:45,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8047a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:45, skipping insertion in model container [2019-09-20 13:30:45,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:44" (2/3) ... [2019-09-20 13:30:45,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8047a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:45, skipping insertion in model container [2019-09-20 13:30:45,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:45" (3/3) ... [2019-09-20 13:30:45,524 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2019-09-20 13:30:45,535 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:45,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:45,565 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:45,597 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:45,597 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:45,597 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:45,598 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:45,598 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:45,599 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:45,599 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:45,599 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-09-20 13:30:45,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:30:45,661 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:45,662 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:45,666 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:45,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1687671781, now seen corresponding path program 1 times [2019-09-20 13:30:45,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:45,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:45,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:45,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:45,732 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:46,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:46,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:46,057 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:46,063 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:46,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:46,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:46,076 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2019-09-20 13:30:46,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:46,104 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2019-09-20 13:30:46,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:46,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:30:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:46,117 INFO L225 Difference]: With dead ends: 96 [2019-09-20 13:30:46,117 INFO L226 Difference]: Without dead ends: 85 [2019-09-20 13:30:46,119 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:46,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-20 13:30:46,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-20 13:30:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-20 13:30:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2019-09-20 13:30:46,171 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 46 [2019-09-20 13:30:46,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:46,172 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2019-09-20 13:30:46,172 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:46,172 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2019-09-20 13:30:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:30:46,175 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:46,176 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:46,176 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:46,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:46,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1046203216, now seen corresponding path program 1 times [2019-09-20 13:30:46,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:46,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:46,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:46,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:46,180 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:46,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:46,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:46,276 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:46,278 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:46,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:46,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:46,279 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand 3 states. [2019-09-20 13:30:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:46,291 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-09-20 13:30:46,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:46,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:30:46,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:46,294 INFO L225 Difference]: With dead ends: 76 [2019-09-20 13:30:46,294 INFO L226 Difference]: Without dead ends: 76 [2019-09-20 13:30:46,295 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-20 13:30:46,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-20 13:30:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-20 13:30:46,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2019-09-20 13:30:46,305 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 47 [2019-09-20 13:30:46,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:46,306 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2019-09-20 13:30:46,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2019-09-20 13:30:46,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:46,308 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:46,308 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:46,309 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:46,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1948536442, now seen corresponding path program 1 times [2019-09-20 13:30:46,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:46,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:46,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:46,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:46,312 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:46,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:46,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:46,505 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:46,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:46,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:46,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:46,507 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 7 states. [2019-09-20 13:30:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:46,736 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-09-20 13:30:46,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:46,737 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:30:46,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:46,739 INFO L225 Difference]: With dead ends: 76 [2019-09-20 13:30:46,739 INFO L226 Difference]: Without dead ends: 76 [2019-09-20 13:30:46,739 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-20 13:30:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-20 13:30:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-20 13:30:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-09-20 13:30:46,747 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 52 [2019-09-20 13:30:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:46,748 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-09-20 13:30:46,748 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-09-20 13:30:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-20 13:30:46,752 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:46,753 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:46,753 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:46,753 INFO L82 PathProgramCache]: Analyzing trace with hash -952018290, now seen corresponding path program 1 times [2019-09-20 13:30:46,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:46,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:46,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:46,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:46,757 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:46,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:46,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:30:46,930 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:46,930 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:30:46,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:30:46,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:46,931 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 10 states. [2019-09-20 13:30:47,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:47,505 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2019-09-20 13:30:47,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:30:47,506 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-09-20 13:30:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:47,517 INFO L225 Difference]: With dead ends: 160 [2019-09-20 13:30:47,517 INFO L226 Difference]: Without dead ends: 160 [2019-09-20 13:30:47,518 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:30:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-09-20 13:30:47,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2019-09-20 13:30:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-09-20 13:30:47,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2019-09-20 13:30:47,563 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 55 [2019-09-20 13:30:47,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:47,566 INFO L475 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2019-09-20 13:30:47,567 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:30:47,567 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2019-09-20 13:30:47,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:30:47,569 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:47,573 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:47,574 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:47,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:47,574 INFO L82 PathProgramCache]: Analyzing trace with hash -939297624, now seen corresponding path program 1 times [2019-09-20 13:30:47,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:47,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:47,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:47,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:47,579 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:47,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:47,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:47,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:47,697 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:47,698 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:47,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:47,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:47,699 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand 3 states. [2019-09-20 13:30:47,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:47,708 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2019-09-20 13:30:47,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:47,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-09-20 13:30:47,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:47,713 INFO L225 Difference]: With dead ends: 146 [2019-09-20 13:30:47,713 INFO L226 Difference]: Without dead ends: 146 [2019-09-20 13:30:47,714 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-09-20 13:30:47,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-09-20 13:30:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-09-20 13:30:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2019-09-20 13:30:47,724 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 59 [2019-09-20 13:30:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:47,725 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2019-09-20 13:30:47,725 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2019-09-20 13:30:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-20 13:30:47,727 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:47,727 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:47,727 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash 147904096, now seen corresponding path program 1 times [2019-09-20 13:30:47,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:47,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:47,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:47,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:47,731 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-20 13:30:47,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:47,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:47,824 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:47,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:47,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:47,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:47,825 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand 6 states. [2019-09-20 13:30:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:47,948 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2019-09-20 13:30:47,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:47,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2019-09-20 13:30:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:47,949 INFO L225 Difference]: With dead ends: 145 [2019-09-20 13:30:47,950 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:47,950 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:47,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:47,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:47,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:47,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:47,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2019-09-20 13:30:47,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:47,951 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:47,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:47,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:47,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:47 BoogieIcfgContainer [2019-09-20 13:30:47,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:47,960 INFO L168 Benchmark]: Toolchain (without parser) took 4411.29 ms. Allocated memory was 137.9 MB in the beginning and 269.5 MB in the end (delta: 131.6 MB). Free memory was 82.9 MB in the beginning and 140.0 MB in the end (delta: -57.1 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:47,961 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory is still 102.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:47,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.05 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 82.9 MB in the beginning and 163.5 MB in the end (delta: -80.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:47,963 INFO L168 Benchmark]: Boogie Preprocessor took 92.30 ms. Allocated memory is still 198.2 MB. Free memory was 163.5 MB in the beginning and 159.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:47,964 INFO L168 Benchmark]: RCFGBuilder took 1153.85 ms. Allocated memory is still 198.2 MB. Free memory was 159.8 MB in the beginning and 76.9 MB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:47,965 INFO L168 Benchmark]: TraceAbstraction took 2442.97 ms. Allocated memory was 198.2 MB in the beginning and 269.5 MB in the end (delta: 71.3 MB). Free memory was 76.9 MB in the beginning and 140.0 MB in the end (delta: -63.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:47,969 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory is still 102.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.05 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 82.9 MB in the beginning and 163.5 MB in the end (delta: -80.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.30 ms. Allocated memory is still 198.2 MB. Free memory was 163.5 MB in the beginning and 159.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1153.85 ms. Allocated memory is still 198.2 MB. Free memory was 159.8 MB in the beginning and 76.9 MB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2442.97 ms. Allocated memory was 198.2 MB in the beginning and 269.5 MB in the end (delta: 71.3 MB). Free memory was 76.9 MB in the beginning and 140.0 MB in the end (delta: -63.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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 36 procedures, 205 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 521 SDtfs, 296 SDslu, 969 SDs, 0 SdLazy, 332 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 349 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 40993 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...