java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:27,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:27,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:27,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:27,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:27,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:27,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:27,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:27,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:27,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:27,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:27,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:27,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:27,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:27,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:27,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:27,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:27,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:27,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:27,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:27,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:27,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:27,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:27,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:27,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:27,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:27,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:27,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:27,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:27,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:27,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:27,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:27,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:27,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:27,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:27,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:27,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:27,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:27,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:27,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:27,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:27,508 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 13:29:27,529 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:27,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:27,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:27,530 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:27,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:27,531 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:27,531 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:27,532 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:27,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:27,532 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:27,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:27,533 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:27,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:27,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:27,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:27,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:27,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:27,535 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:27,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:27,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:27,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:27,536 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:27,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:27,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:27,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:27,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:27,538 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:27,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:27,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:27,538 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:27,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:27,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:27,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:27,603 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:27,604 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:27,604 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product11.cil.c [2019-09-20 13:29:27,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f514e92/42ecfb2e9b234f8bb6a673a9a2d97f89/FLAGfae3547eb [2019-09-20 13:29:28,244 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:28,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product11.cil.c [2019-09-20 13:29:28,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f514e92/42ecfb2e9b234f8bb6a673a9a2d97f89/FLAGfae3547eb [2019-09-20 13:29:28,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f514e92/42ecfb2e9b234f8bb6a673a9a2d97f89 [2019-09-20 13:29:28,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:28,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:28,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:28,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:28,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:28,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:28,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbcfe5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28, skipping insertion in model container [2019-09-20 13:29:28,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:28,542 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:28,581 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:29,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:29,030 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:29,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:29,177 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:29,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29 WrapperNode [2019-09-20 13:29:29,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:29,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:29,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:29,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:29,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:29,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:29,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:29,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:29,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (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 13:29:29,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:29,332 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:29:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:29:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:30,347 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:30,348 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:30,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:30 BoogieIcfgContainer [2019-09-20 13:29:30,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:30,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:30,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:30,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:30,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:28" (1/3) ... [2019-09-20 13:29:30,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e28b8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:30, skipping insertion in model container [2019-09-20 13:29:30,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (2/3) ... [2019-09-20 13:29:30,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e28b8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:30, skipping insertion in model container [2019-09-20 13:29:30,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:30" (3/3) ... [2019-09-20 13:29:30,384 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product11.cil.c [2019-09-20 13:29:30,394 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:30,402 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:30,418 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:30,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:30,444 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:30,444 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:30,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:30,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:30,445 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:30,445 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:30,446 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:30,464 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-09-20 13:29:30,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:30,476 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:30,478 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 13:29:30,480 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:30,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:30,485 INFO L82 PathProgramCache]: Analyzing trace with hash 3662400, now seen corresponding path program 1 times [2019-09-20 13:29:30,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:30,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:30,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,541 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:30,775 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 13:29:30,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:30,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:30,779 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:30,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:30,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:30,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:30,803 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2019-09-20 13:29:30,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:30,830 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-09-20 13:29:30,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:30,832 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:30,843 INFO L225 Difference]: With dead ends: 101 [2019-09-20 13:29:30,844 INFO L226 Difference]: Without dead ends: 90 [2019-09-20 13:29:30,845 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 13:29:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-20 13:29:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-09-20 13:29:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-09-20 13:29:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2019-09-20 13:29:30,896 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 46 [2019-09-20 13:29:30,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:30,897 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2019-09-20 13:29:30,897 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2019-09-20 13:29:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:30,900 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:30,901 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 13:29:30,901 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:30,902 INFO L82 PathProgramCache]: Analyzing trace with hash -306482980, now seen corresponding path program 1 times [2019-09-20 13:29:30,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:30,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:30,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,905 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:31,060 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 13:29:31,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:31,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:31,061 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:31,063 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:31,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:31,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:31,064 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 3 states. [2019-09-20 13:29:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:31,084 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2019-09-20 13:29:31,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:31,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:31,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:31,091 INFO L225 Difference]: With dead ends: 81 [2019-09-20 13:29:31,091 INFO L226 Difference]: Without dead ends: 81 [2019-09-20 13:29:31,092 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 13:29:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-09-20 13:29:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-09-20 13:29:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-09-20 13:29:31,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2019-09-20 13:29:31,103 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 47 [2019-09-20 13:29:31,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:31,103 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2019-09-20 13:29:31,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:31,103 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2019-09-20 13:29:31,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:31,105 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:31,106 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] [2019-09-20 13:29:31,106 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:31,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:31,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1187758501, now seen corresponding path program 1 times [2019-09-20 13:29:31,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:31,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:31,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,110 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:31,246 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 13:29:31,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:31,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:31,247 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:31,247 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:31,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:31,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:31,248 INFO L87 Difference]: Start difference. First operand 81 states and 92 transitions. Second operand 7 states. [2019-09-20 13:29:31,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:31,583 INFO L93 Difference]: Finished difference Result 188 states and 222 transitions. [2019-09-20 13:29:31,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:31,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:29:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:31,589 INFO L225 Difference]: With dead ends: 188 [2019-09-20 13:29:31,590 INFO L226 Difference]: Without dead ends: 188 [2019-09-20 13:29:31,590 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 13:29:31,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-09-20 13:29:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 168. [2019-09-20 13:29:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-09-20 13:29:31,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2019-09-20 13:29:31,613 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 51 [2019-09-20 13:29:31,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:31,614 INFO L475 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2019-09-20 13:29:31,614 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:31,614 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2019-09-20 13:29:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-20 13:29:31,616 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:31,617 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] [2019-09-20 13:29:31,617 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:31,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:31,617 INFO L82 PathProgramCache]: Analyzing trace with hash -5484303, now seen corresponding path program 1 times [2019-09-20 13:29:31,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:31,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:31,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,621 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:31,812 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 13:29:31,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:31,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:31,813 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:31,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:31,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:31,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:31,814 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand 6 states. [2019-09-20 13:29:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:32,041 INFO L93 Difference]: Finished difference Result 297 states and 356 transitions. [2019-09-20 13:29:32,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:32,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2019-09-20 13:29:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:32,052 INFO L225 Difference]: With dead ends: 297 [2019-09-20 13:29:32,052 INFO L226 Difference]: Without dead ends: 297 [2019-09-20 13:29:32,053 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2019-09-20 13:29:32,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 291. [2019-09-20 13:29:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2019-09-20 13:29:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 350 transitions. [2019-09-20 13:29:32,117 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 350 transitions. Word has length 54 [2019-09-20 13:29:32,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:32,120 INFO L475 AbstractCegarLoop]: Abstraction has 291 states and 350 transitions. [2019-09-20 13:29:32,121 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 350 transitions. [2019-09-20 13:29:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-20 13:29:32,125 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:32,125 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] [2019-09-20 13:29:32,126 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:32,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:32,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1905030509, now seen corresponding path program 1 times [2019-09-20 13:29:32,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:32,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:32,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,132 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:32,250 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 13:29:32,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:32,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:32,252 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:32,252 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:32,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:32,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:32,253 INFO L87 Difference]: Start difference. First operand 291 states and 350 transitions. Second operand 6 states. [2019-09-20 13:29:32,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:32,410 INFO L93 Difference]: Finished difference Result 262 states and 305 transitions. [2019-09-20 13:29:32,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:32,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-09-20 13:29:32,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:32,413 INFO L225 Difference]: With dead ends: 262 [2019-09-20 13:29:32,413 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:32,413 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:32,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:32,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:32,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-09-20 13:29:32,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:32,415 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:32,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:32,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:32,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:32 BoogieIcfgContainer [2019-09-20 13:29:32,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:32,424 INFO L168 Benchmark]: Toolchain (without parser) took 3896.22 ms. Allocated memory was 141.0 MB in the beginning and 258.5 MB in the end (delta: 117.4 MB). Free memory was 88.1 MB in the beginning and 172.8 MB in the end (delta: -84.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,426 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.15 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 87.9 MB in the beginning and 166.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,429 INFO L168 Benchmark]: Boogie Preprocessor took 89.98 ms. Allocated memory is still 200.3 MB. Free memory was 166.8 MB in the beginning and 163.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,431 INFO L168 Benchmark]: RCFGBuilder took 1081.20 ms. Allocated memory is still 200.3 MB. Free memory was 162.7 MB in the beginning and 81.7 MB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,432 INFO L168 Benchmark]: TraceAbstraction took 2070.56 ms. Allocated memory was 200.3 MB in the beginning and 258.5 MB in the end (delta: 58.2 MB). Free memory was 81.7 MB in the beginning and 172.8 MB in the end (delta: -91.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:32,443 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.15 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 87.9 MB in the beginning and 166.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.98 ms. Allocated memory is still 200.3 MB. Free memory was 166.8 MB in the beginning and 163.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1081.20 ms. Allocated memory is still 200.3 MB. Free memory was 162.7 MB in the beginning and 81.7 MB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2070.56 ms. Allocated memory was 200.3 MB in the beginning and 258.5 MB in the end (delta: 58.2 MB). Free memory was 81.7 MB in the beginning and 172.8 MB in the end (delta: -91.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 398]: 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, 207 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 488 SDtfs, 241 SDslu, 994 SDs, 0 SdLazy, 230 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 23729 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...