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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:56:31,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:56:31,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:56:31,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:56:31,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:56:31,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:56:31,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:56:31,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:56:31,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:56:31,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:56:31,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:56:31,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:56:31,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:56:31,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:56:31,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:56:31,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:56:31,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:56:31,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:56:31,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:56:31,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:56:31,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:56:31,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:56:31,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:56:31,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:56:31,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:56:31,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:56:31,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:56:31,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:56:31,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:56:31,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:56:31,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:56:31,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:56:31,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:56:31,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:56:31,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:56:31,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:56:31,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:56:31,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:56:31,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:56:31,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:56:31,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:56:31,582 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:56:31,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:56:31,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:56:31,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:56:31,598 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:56:31,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:56:31,599 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:56:31,599 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:56:31,599 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:56:31,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:56:31,599 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:56:31,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:56:31,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:56:31,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:56:31,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:56:31,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:56:31,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:56:31,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:56:31,601 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:56:31,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:56:31,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:56:31,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:56:31,602 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:56:31,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:56:31,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:31,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:56:31,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:56:31,603 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:56:31,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:56:31,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:56:31,604 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:56:31,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:56:31,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:56:31,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:56:31,661 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:56:31,664 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:56:31,665 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2019-10-03 02:56:31,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da1dc89d7/06a5f3474e554322b4c1e9e223117cbe/FLAG6b257eda2 [2019-10-03 02:56:32,285 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:56:32,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product04.cil.c [2019-10-03 02:56:32,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da1dc89d7/06a5f3474e554322b4c1e9e223117cbe/FLAG6b257eda2 [2019-10-03 02:56:32,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da1dc89d7/06a5f3474e554322b4c1e9e223117cbe [2019-10-03 02:56:32,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:56:32,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:56:32,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:32,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:56:32,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:56:32,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:32" (1/1) ... [2019-10-03 02:56:32,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d8d832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:32, skipping insertion in model container [2019-10-03 02:56:32,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:32" (1/1) ... [2019-10-03 02:56:32,539 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:56:32,608 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:56:33,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:33,072 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:56:33,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:33,217 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:56:33,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33 WrapperNode [2019-10-03 02:56:33,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:33,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:56:33,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:56:33,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:56:33,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... [2019-10-03 02:56:33,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... [2019-10-03 02:56:33,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... [2019-10-03 02:56:33,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... [2019-10-03 02:56:33,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... [2019-10-03 02:56:33,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... [2019-10-03 02:56:33,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... [2019-10-03 02:56:33,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:56:33,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:56:33,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:56:33,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:56:33,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:56:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:56:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:56:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:56:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:56:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:56:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:56:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:56:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:56:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:56:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:56:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:56:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:56:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:56:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:56:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:56:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:56:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:56:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:56:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:56:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:56:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:56:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:56:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:56:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:56:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:56:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:56:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:56:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:56:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:56:33,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:56:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:56:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:56:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:56:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:56:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:33,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:56:33,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:33,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:33,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:56:33,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:56:33,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:56:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:56:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:56:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:56:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:56:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:56:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:56:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:56:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:56:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:56:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:56:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:56:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:56:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:56:34,383 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:56:34,384 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:56:34,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:34 BoogieIcfgContainer [2019-10-03 02:56:34,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:56:34,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:56:34,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:56:34,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:56:34,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:56:32" (1/3) ... [2019-10-03 02:56:34,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fb80bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:34, skipping insertion in model container [2019-10-03 02:56:34,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:33" (2/3) ... [2019-10-03 02:56:34,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fb80bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:34, skipping insertion in model container [2019-10-03 02:56:34,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:34" (3/3) ... [2019-10-03 02:56:34,399 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product04.cil.c [2019-10-03 02:56:34,410 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:56:34,420 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:56:34,438 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:56:34,471 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:56:34,471 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:56:34,471 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:56:34,471 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:56:34,472 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:56:34,472 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:56:34,472 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:56:34,473 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:56:34,499 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2019-10-03 02:56:34,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:56:34,513 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:34,515 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:34,518 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:34,524 INFO L82 PathProgramCache]: Analyzing trace with hash 667254028, now seen corresponding path program 1 times [2019-10-03 02:56:34,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:34,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:34,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:34,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:34,582 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:34,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:34,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:56:34,904 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:34,909 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:56:34,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:56:34,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:34,928 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2019-10-03 02:56:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:34,954 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-10-03 02:56:34,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:56:34,955 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:56:34,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:34,969 INFO L225 Difference]: With dead ends: 105 [2019-10-03 02:56:34,970 INFO L226 Difference]: Without dead ends: 94 [2019-10-03 02:56:34,972 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:34,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-03 02:56:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-10-03 02:56:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-03 02:56:35,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2019-10-03 02:56:35,038 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 46 [2019-10-03 02:56:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:35,039 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2019-10-03 02:56:35,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:56:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2019-10-03 02:56:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:56:35,043 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:35,043 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:35,043 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:35,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:35,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1006475212, now seen corresponding path program 1 times [2019-10-03 02:56:35,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:35,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:35,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:35,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:35,047 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:35,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:35,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:35,161 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:35,163 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:35,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:35,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:35,164 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 3 states. [2019-10-03 02:56:35,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:35,182 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2019-10-03 02:56:35,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:35,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:56:35,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:35,185 INFO L225 Difference]: With dead ends: 85 [2019-10-03 02:56:35,185 INFO L226 Difference]: Without dead ends: 85 [2019-10-03 02:56:35,186 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:35,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-03 02:56:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-10-03 02:56:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-03 02:56:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2019-10-03 02:56:35,197 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 47 [2019-10-03 02:56:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:35,197 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2019-10-03 02:56:35,197 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2019-10-03 02:56:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:56:35,199 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:35,200 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:35,200 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:35,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:35,200 INFO L82 PathProgramCache]: Analyzing trace with hash 882475242, now seen corresponding path program 1 times [2019-10-03 02:56:35,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:35,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:35,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:35,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:35,204 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:35,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:35,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:56:35,366 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:35,367 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:56:35,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:56:35,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:56:35,367 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 7 states. [2019-10-03 02:56:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:35,735 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2019-10-03 02:56:35,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:56:35,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-03 02:56:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:35,739 INFO L225 Difference]: With dead ends: 196 [2019-10-03 02:56:35,739 INFO L226 Difference]: Without dead ends: 196 [2019-10-03 02:56:35,739 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:56:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-03 02:56:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2019-10-03 02:56:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-03 02:56:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2019-10-03 02:56:35,782 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 52 [2019-10-03 02:56:35,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:35,783 INFO L475 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2019-10-03 02:56:35,783 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:56:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2019-10-03 02:56:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-03 02:56:35,787 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:35,787 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:35,790 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:35,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:35,791 INFO L82 PathProgramCache]: Analyzing trace with hash 231939386, now seen corresponding path program 1 times [2019-10-03 02:56:35,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:35,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:35,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:35,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:35,795 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:35,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:35,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:56:35,985 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:35,987 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:56:35,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:56:35,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:56:35,988 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand 6 states. [2019-10-03 02:56:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:36,188 INFO L93 Difference]: Finished difference Result 305 states and 364 transitions. [2019-10-03 02:56:36,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:36,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-03 02:56:36,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:36,193 INFO L225 Difference]: With dead ends: 305 [2019-10-03 02:56:36,193 INFO L226 Difference]: Without dead ends: 305 [2019-10-03 02:56:36,193 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:56:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2019-10-03 02:56:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 299. [2019-10-03 02:56:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2019-10-03 02:56:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 358 transitions. [2019-10-03 02:56:36,226 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 358 transitions. Word has length 55 [2019-10-03 02:56:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:36,227 INFO L475 AbstractCegarLoop]: Abstraction has 299 states and 358 transitions. [2019-10-03 02:56:36,227 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:56:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 358 transitions. [2019-10-03 02:56:36,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:56:36,230 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:36,231 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:36,231 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:36,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1273020098, now seen corresponding path program 1 times [2019-10-03 02:56:36,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:36,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:36,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:36,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:36,235 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:36,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:36,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:56:36,324 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:36,325 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:56:36,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:56:36,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:56:36,325 INFO L87 Difference]: Start difference. First operand 299 states and 358 transitions. Second operand 6 states. [2019-10-03 02:56:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:36,503 INFO L93 Difference]: Finished difference Result 270 states and 313 transitions. [2019-10-03 02:56:36,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:56:36,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-10-03 02:56:36,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:36,504 INFO L225 Difference]: With dead ends: 270 [2019-10-03 02:56:36,504 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:56:36,505 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:56:36,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:56:36,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:56:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:56:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:56:36,506 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2019-10-03 02:56:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:36,507 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:56:36,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:56:36,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:56:36,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:56:36,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:56:36 BoogieIcfgContainer [2019-10-03 02:56:36,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:56:36,516 INFO L168 Benchmark]: Toolchain (without parser) took 3993.52 ms. Allocated memory was 134.2 MB in the beginning and 256.9 MB in the end (delta: 122.7 MB). Free memory was 89.4 MB in the beginning and 167.6 MB in the end (delta: -78.2 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:36,517 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 134.2 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:56:36,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.50 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.2 MB in the beginning and 166.5 MB in the end (delta: -77.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:36,519 INFO L168 Benchmark]: Boogie Preprocessor took 90.93 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 162.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:36,520 INFO L168 Benchmark]: RCFGBuilder took 1076.31 ms. Allocated memory was 200.8 MB in the beginning and 227.5 MB in the end (delta: 26.7 MB). Free memory was 162.7 MB in the beginning and 198.7 MB in the end (delta: -36.0 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:36,521 INFO L168 Benchmark]: TraceAbstraction took 2124.46 ms. Allocated memory was 227.5 MB in the beginning and 256.9 MB in the end (delta: 29.4 MB). Free memory was 198.7 MB in the beginning and 167.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:36,526 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 134.2 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.50 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.2 MB in the beginning and 166.5 MB in the end (delta: -77.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.93 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 162.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1076.31 ms. Allocated memory was 200.8 MB in the beginning and 227.5 MB in the end (delta: 26.7 MB). Free memory was 162.7 MB in the beginning and 198.7 MB in the end (delta: -36.0 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2124.46 ms. Allocated memory was 227.5 MB in the beginning and 256.9 MB in the end (delta: 29.4 MB). Free memory was 198.7 MB in the beginning and 167.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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, 204 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 511 SDtfs, 252 SDslu, 1034 SDs, 0 SdLazy, 245 SolverSat, 19 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=299occurred 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, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 24632 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...