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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:34,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:34,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:34,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:34,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:34,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:34,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:34,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:34,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:34,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:34,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:34,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:34,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:34,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:34,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:34,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:34,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:34,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:34,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:34,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:34,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:34,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:34,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:34,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:34,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:34,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:34,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:34,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:34,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:34,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:34,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:34,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:34,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:34,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:34,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:34,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:34,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:34,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:34,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:34,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:34,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:34,620 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 [2019-09-16 17:09:34,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:34,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:34,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:34,645 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:34,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:34,646 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:34,646 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:34,646 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:34,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:34,646 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:34,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:34,648 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:34,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:34,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:34,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:34,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:34,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:34,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:34,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:34,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:34,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:34,650 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:34,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:34,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:34,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:34,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:34,651 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:34,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:34,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:34,652 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:34,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:34,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:34,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:34,702 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:34,702 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:34,703 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2019-09-16 17:09:34,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7e67397/351bf6b0b63042fdb862595a5dfcaf4c/FLAGbfcb9dff9 [2019-09-16 17:09:35,255 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:35,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2019-09-16 17:09:35,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7e67397/351bf6b0b63042fdb862595a5dfcaf4c/FLAGbfcb9dff9 [2019-09-16 17:09:35,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7e67397/351bf6b0b63042fdb862595a5dfcaf4c [2019-09-16 17:09:35,604 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:35,605 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:35,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:35,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:35,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:35,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:35" (1/1) ... [2019-09-16 17:09:35,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344f0ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:35, skipping insertion in model container [2019-09-16 17:09:35,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:35" (1/1) ... [2019-09-16 17:09:35,621 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:35,675 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:36,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:36,060 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:36,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:36,243 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:36,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36 WrapperNode [2019-09-16 17:09:36,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:36,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:36,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:36,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:36,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (1/1) ... [2019-09-16 17:09:36,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (1/1) ... [2019-09-16 17:09:36,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (1/1) ... [2019-09-16 17:09:36,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (1/1) ... [2019-09-16 17:09:36,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (1/1) ... [2019-09-16 17:09:36,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (1/1) ... [2019-09-16 17:09:36,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (1/1) ... [2019-09-16 17:09:36,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:36,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:36,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:36,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:36,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (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 [2019-09-16 17:09:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:09:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:09:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:09:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:09:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:09:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:09:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:09:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:09:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:09:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:09:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:37,410 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:37,410 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:37,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:37 BoogieIcfgContainer [2019-09-16 17:09:37,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:37,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:37,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:37,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:37,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:35" (1/3) ... [2019-09-16 17:09:37,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b3be45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:37, skipping insertion in model container [2019-09-16 17:09:37,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:36" (2/3) ... [2019-09-16 17:09:37,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b3be45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:37, skipping insertion in model container [2019-09-16 17:09:37,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:37" (3/3) ... [2019-09-16 17:09:37,420 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2019-09-16 17:09:37,430 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:37,440 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:37,456 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:37,495 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:37,495 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:37,496 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:37,496 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:37,497 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:37,497 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:37,497 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:37,497 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-09-16 17:09:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-16 17:09:37,531 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:37,532 INFO L407 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] [2019-09-16 17:09:37,534 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:37,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:37,539 INFO L82 PathProgramCache]: Analyzing trace with hash 176643797, now seen corresponding path program 1 times [2019-09-16 17:09:37,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:37,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:37,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:37,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:37,584 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:37,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:37,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:37,923 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:37,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:37,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:37,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:37,947 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-09-16 17:09:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:38,000 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2019-09-16 17:09:38,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:38,001 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-16 17:09:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:38,023 INFO L225 Difference]: With dead ends: 135 [2019-09-16 17:09:38,023 INFO L226 Difference]: Without dead ends: 124 [2019-09-16 17:09:38,029 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 [2019-09-16 17:09:38,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-16 17:09:38,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-16 17:09:38,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-16 17:09:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2019-09-16 17:09:38,125 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 59 [2019-09-16 17:09:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:38,126 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2019-09-16 17:09:38,126 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2019-09-16 17:09:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:09:38,140 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:38,140 INFO L407 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] [2019-09-16 17:09:38,140 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:38,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:38,141 INFO L82 PathProgramCache]: Analyzing trace with hash -464202477, now seen corresponding path program 1 times [2019-09-16 17:09:38,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:38,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:38,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:38,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:38,146 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:38,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:38,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:38,273 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:38,275 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:38,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:38,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:38,276 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand 3 states. [2019-09-16 17:09:38,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:38,290 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2019-09-16 17:09:38,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:38,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-16 17:09:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:38,293 INFO L225 Difference]: With dead ends: 115 [2019-09-16 17:09:38,294 INFO L226 Difference]: Without dead ends: 115 [2019-09-16 17:09:38,295 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 [2019-09-16 17:09:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-16 17:09:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-16 17:09:38,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-16 17:09:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2019-09-16 17:09:38,305 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 60 [2019-09-16 17:09:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:38,306 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2019-09-16 17:09:38,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2019-09-16 17:09:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:09:38,308 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:38,308 INFO L407 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] [2019-09-16 17:09:38,309 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:38,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:38,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1980183215, now seen corresponding path program 1 times [2019-09-16 17:09:38,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:38,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:38,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:38,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:38,312 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:38,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:38,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:38,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:38,475 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:38,475 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:38,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:38,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:38,476 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand 7 states. [2019-09-16 17:09:38,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:38,905 INFO L93 Difference]: Finished difference Result 258 states and 310 transitions. [2019-09-16 17:09:38,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:38,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-16 17:09:38,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:38,910 INFO L225 Difference]: With dead ends: 258 [2019-09-16 17:09:38,910 INFO L226 Difference]: Without dead ends: 258 [2019-09-16 17:09:38,911 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 [2019-09-16 17:09:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-09-16 17:09:38,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2019-09-16 17:09:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-09-16 17:09:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 298 transitions. [2019-09-16 17:09:38,947 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 298 transitions. Word has length 65 [2019-09-16 17:09:38,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:38,947 INFO L475 AbstractCegarLoop]: Abstraction has 246 states and 298 transitions. [2019-09-16 17:09:38,947 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:38,948 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 298 transitions. [2019-09-16 17:09:38,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-16 17:09:38,949 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:38,985 INFO L407 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] [2019-09-16 17:09:38,985 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:38,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1204188044, now seen corresponding path program 1 times [2019-09-16 17:09:38,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:38,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:38,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:38,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:38,989 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:09:39,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:39,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:39,100 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:39,101 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:39,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:39,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:39,101 INFO L87 Difference]: Start difference. First operand 246 states and 298 transitions. Second operand 7 states. [2019-09-16 17:09:39,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:39,499 INFO L93 Difference]: Finished difference Result 192 states and 220 transitions. [2019-09-16 17:09:39,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:09:39,499 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-09-16 17:09:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:39,500 INFO L225 Difference]: With dead ends: 192 [2019-09-16 17:09:39,500 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:39,501 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:09:39,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:39,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:39,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:39,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2019-09-16 17:09:39,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:39,502 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:39,504 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:39,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:39,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:39 BoogieIcfgContainer [2019-09-16 17:09:39,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:39,521 INFO L168 Benchmark]: Toolchain (without parser) took 3914.56 ms. Allocated memory was 140.0 MB in the beginning and 261.1 MB in the end (delta: 121.1 MB). Free memory was 85.4 MB in the beginning and 159.5 MB in the end (delta: -74.1 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:39,521 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:39,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.75 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 85.2 MB in the beginning and 163.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:39,525 INFO L168 Benchmark]: Boogie Preprocessor took 122.42 ms. Allocated memory is still 200.3 MB. Free memory was 163.8 MB in the beginning and 160.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:39,527 INFO L168 Benchmark]: RCFGBuilder took 1044.60 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 159.5 MB in the beginning and 191.3 MB in the end (delta: -31.7 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:39,528 INFO L168 Benchmark]: TraceAbstraction took 2104.95 ms. Allocated memory was 224.9 MB in the beginning and 261.1 MB in the end (delta: 36.2 MB). Free memory was 191.3 MB in the beginning and 159.5 MB in the end (delta: 31.8 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:39,536 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 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.75 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 85.2 MB in the beginning and 163.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.42 ms. Allocated memory is still 200.3 MB. Free memory was 163.8 MB in the beginning and 160.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1044.60 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 159.5 MB in the beginning and 191.3 MB in the end (delta: -31.7 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2104.95 ms. Allocated memory was 224.9 MB in the beginning and 261.1 MB in the end (delta: 36.2 MB). Free memory was 191.3 MB in the beginning and 159.5 MB in the end (delta: 31.8 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: 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, 241 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 542 SDtfs, 310 SDslu, 824 SDs, 0 SdLazy, 397 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred in iteration=3, 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, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 26598 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...