/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/bubble_sort-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 11:49:46,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 11:49:46,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 11:49:46,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 11:49:46,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 11:49:46,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 11:49:46,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 11:49:46,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 11:49:46,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 11:49:46,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 11:49:46,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 11:49:46,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 11:49:46,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 11:49:46,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 11:49:46,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 11:49:46,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 11:49:46,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 11:49:46,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 11:49:46,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 11:49:46,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 11:49:46,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 11:49:46,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 11:49:46,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 11:49:46,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 11:49:46,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-02 11:49:46,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-02 11:49:46,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-02 11:49:46,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-02 11:49:46,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-02 11:49:46,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-05-02 11:49:46,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 11:49:46,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 11:49:46,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 11:49:46,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-05-02 11:49:46,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 11:49:46,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 11:49:46,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-02 11:49:46,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-02 11:49:46,596 INFO L138 SettingsManager]: * Use SBE=true [2021-05-02 11:49:46,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 11:49:46,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 11:49:46,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 11:49:46,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 11:49:46,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 11:49:46,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 11:49:46,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 11:49:46,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 11:49:46,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 11:49:46,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 11:49:46,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 11:49:46,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 11:49:46,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 11:49:46,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 11:49:46,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 11:49:46,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 11:49:46,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 11:49:46,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-02 11:49:46,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-02 11:49:46,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 11:49:46,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-02 11:49:46,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-02 11:49:46,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-02 11:49:46,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 11:49:46,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 11:49:46,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 11:49:46,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 11:49:46,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 11:49:46,905 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 11:49:46,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/bubble_sort-2.i [2021-05-02 11:49:46,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef78b6392/77fa78a141474f2b9cdd136c4e3b87dc/FLAG6ea85414c [2021-05-02 11:49:47,475 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 11:49:47,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i [2021-05-02 11:49:47,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef78b6392/77fa78a141474f2b9cdd136c4e3b87dc/FLAG6ea85414c [2021-05-02 11:49:47,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef78b6392/77fa78a141474f2b9cdd136c4e3b87dc [2021-05-02 11:49:47,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 11:49:47,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-02 11:49:47,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 11:49:47,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 11:49:47,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 11:49:47,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 11:49:47" (1/1) ... [2021-05-02 11:49:47,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be8d591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:47, skipping insertion in model container [2021-05-02 11:49:47,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 11:49:47" (1/1) ... [2021-05-02 11:49:47,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 11:49:47,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 11:49:47,992 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i[1830,1843] [2021-05-02 11:49:48,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 11:49:48,131 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 11:49:48,161 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i[1830,1843] [2021-05-02 11:49:48,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 11:49:48,262 INFO L208 MainTranslator]: Completed translation [2021-05-02 11:49:48,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48 WrapperNode [2021-05-02 11:49:48,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 11:49:48,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 11:49:48,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 11:49:48,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 11:49:48,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (1/1) ... [2021-05-02 11:49:48,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (1/1) ... [2021-05-02 11:49:48,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (1/1) ... [2021-05-02 11:49:48,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (1/1) ... [2021-05-02 11:49:48,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (1/1) ... [2021-05-02 11:49:48,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (1/1) ... [2021-05-02 11:49:48,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (1/1) ... [2021-05-02 11:49:48,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 11:49:48,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 11:49:48,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 11:49:48,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 11:49:48,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (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 [2021-05-02 11:49:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 11:49:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 11:49:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 11:49:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-05-02 11:49:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-05-02 11:49:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-05-02 11:49:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-05-02 11:49:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-05-02 11:49:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-05-02 11:49:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-05-02 11:49:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-05-02 11:49:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-05-02 11:49:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-05-02 11:49:48,455 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-05-02 11:49:48,455 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-05-02 11:49:48,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 11:49:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 11:49:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 11:49:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-05-02 11:49:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 11:49:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-02 11:49:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 11:49:48,966 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-05-02 11:49:49,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 11:49:49,213 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-05-02 11:49:49,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 11:49:49 BoogieIcfgContainer [2021-05-02 11:49:49,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 11:49:49,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 11:49:49,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 11:49:49,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 11:49:49,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 11:49:47" (1/3) ... [2021-05-02 11:49:49,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4b4df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 11:49:49, skipping insertion in model container [2021-05-02 11:49:49,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:49:48" (2/3) ... [2021-05-02 11:49:49,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4b4df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 11:49:49, skipping insertion in model container [2021-05-02 11:49:49,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 11:49:49" (3/3) ... [2021-05-02 11:49:49,221 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2021-05-02 11:49:49,226 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-02 11:49:49,229 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 11:49:49,242 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 11:49:49,261 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 11:49:49,261 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-02 11:49:49,261 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-02 11:49:49,261 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 11:49:49,261 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 11:49:49,261 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 11:49:49,261 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 11:49:49,262 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 11:49:49,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 108 states have (on average 1.6574074074074074) internal successors, (179), 127 states have internal predecessors, (179), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-02 11:49:49,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-02 11:49:49,281 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:49:49,281 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 11:49:49,282 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:49:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:49:49,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1791385099, now seen corresponding path program 1 times [2021-05-02 11:49:49,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:49:49,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577479845] [2021-05-02 11:49:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:49:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 11:49:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:49,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 11:49:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 11:49:49,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 11:49:49,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577479845] [2021-05-02 11:49:49,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577479845] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 11:49:49,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 11:49:49,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-02 11:49:49,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858692028] [2021-05-02 11:49:49,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-02 11:49:49,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 11:49:49,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-02 11:49:49,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 11:49:49,645 INFO L87 Difference]: Start difference. First operand has 156 states, 108 states have (on average 1.6574074074074074) internal successors, (179), 127 states have internal predecessors, (179), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 11:49:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 11:49:50,249 INFO L93 Difference]: Finished difference Result 331 states and 501 transitions. [2021-05-02 11:49:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-02 11:49:50,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2021-05-02 11:49:50,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 11:49:50,263 INFO L225 Difference]: With dead ends: 331 [2021-05-02 11:49:50,263 INFO L226 Difference]: Without dead ends: 164 [2021-05-02 11:49:50,272 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-02 11:49:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-05-02 11:49:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2021-05-02 11:49:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.2222222222222223) internal successors, (121), 117 states have internal predecessors, (121), 32 states have call successors, (32), 13 states have call predecessors, (32), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 11:49:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2021-05-02 11:49:50,324 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 18 [2021-05-02 11:49:50,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 11:49:50,324 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2021-05-02 11:49:50,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 11:49:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2021-05-02 11:49:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-02 11:49:50,326 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:49:50,326 INFO L523 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] [2021-05-02 11:49:50,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 11:49:50,326 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:49:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:49:50,327 INFO L82 PathProgramCache]: Analyzing trace with hash 2112592059, now seen corresponding path program 1 times [2021-05-02 11:49:50,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:49:50,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295440570] [2021-05-02 11:49:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:49:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:50,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 11:49:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:50,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 11:49:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:50,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-05-02 11:49:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:50,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-05-02 11:49:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:50,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-05-02 11:49:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:49:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 11:49:50,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 11:49:50,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295440570] [2021-05-02 11:49:50,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295440570] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 11:49:50,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 11:49:50,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-02 11:49:50,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102222917] [2021-05-02 11:49:50,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-02 11:49:50,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 11:49:50,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-02 11:49:50,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-05-02 11:49:50,686 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-02 11:49:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 11:49:52,020 INFO L93 Difference]: Finished difference Result 241 states and 289 transitions. [2021-05-02 11:49:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 11:49:52,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2021-05-02 11:49:52,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 11:49:52,023 INFO L225 Difference]: With dead ends: 241 [2021-05-02 11:49:52,023 INFO L226 Difference]: Without dead ends: 236 [2021-05-02 11:49:52,024 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 364.8ms TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-05-02 11:49:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-05-02 11:49:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2021-05-02 11:49:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 155 states have (on average 1.2451612903225806) internal successors, (193), 172 states have internal predecessors, (193), 32 states have call successors, (32), 14 states have call predecessors, (32), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-02 11:49:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 238 transitions. [2021-05-02 11:49:52,063 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 238 transitions. Word has length 37 [2021-05-02 11:49:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 11:49:52,063 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 238 transitions. [2021-05-02 11:49:52,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-02 11:49:52,063 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 238 transitions. [2021-05-02 11:49:52,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-02 11:49:52,064 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:49:52,064 INFO L523 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] [2021-05-02 11:49:52,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-02 11:49:52,064 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:49:52,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:49:52,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1799360915, now seen corresponding path program 1 times [2021-05-02 11:49:52,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:49:52,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927428394] [2021-05-02 11:49:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:49:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-02 11:49:52,233 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-02 11:49:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-02 11:49:52,337 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-02 11:49:52,364 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-02 11:49:52,364 INFO L624 BasicCegarLoop]: Counterexample might be feasible [2021-05-02 11:49:52,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-02 11:49:52,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 11:49:52 BoogieIcfgContainer [2021-05-02 11:49:52,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 11:49:52,408 INFO L168 Benchmark]: Toolchain (without parser) took 4580.54 ms. Allocated memory was 178.3 MB in the beginning and 230.7 MB in the end (delta: 52.4 MB). Free memory was 141.8 MB in the beginning and 182.7 MB in the end (delta: -40.9 MB). Peak memory consumption was 119.1 MB. Max. memory is 8.0 GB. [2021-05-02 11:49:52,408 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 178.3 MB. Free memory is still 159.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 11:49:52,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.54 ms. Allocated memory is still 178.3 MB. Free memory was 141.6 MB in the beginning and 153.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-05-02 11:49:52,409 INFO L168 Benchmark]: Boogie Preprocessor took 112.86 ms. Allocated memory is still 178.3 MB. Free memory was 153.0 MB in the beginning and 148.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-02 11:49:52,410 INFO L168 Benchmark]: RCFGBuilder took 838.07 ms. Allocated memory is still 178.3 MB. Free memory was 148.8 MB in the beginning and 85.3 MB in the end (delta: 63.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2021-05-02 11:49:52,410 INFO L168 Benchmark]: TraceAbstraction took 3190.11 ms. Allocated memory was 178.3 MB in the beginning and 230.7 MB in the end (delta: 52.4 MB). Free memory was 84.8 MB in the beginning and 182.7 MB in the end (delta: -97.9 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. [2021-05-02 11:49:52,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 178.3 MB. Free memory is still 159.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 434.54 ms. Allocated memory is still 178.3 MB. Free memory was 141.6 MB in the beginning and 153.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.86 ms. Allocated memory is still 178.3 MB. Free memory was 153.0 MB in the beginning and 148.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 838.07 ms. Allocated memory is still 178.3 MB. Free memory was 148.8 MB in the beginning and 85.3 MB in the end (delta: 63.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3190.11 ms. Allocated memory was 178.3 MB in the beginning and 230.7 MB in the end (delta: 52.4 MB). Free memory was 84.8 MB in the beginning and 182.7 MB in the end (delta: -97.9 MB). Peak memory consumption was 62.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] struct list_head gl_list = {& gl_list, & gl_list}; VAL [\old(gl_list)=null, \old(gl_list)=null, gl_list={6442450936:0}] [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; VAL [gl_list={6442450936:0}] [L839] CALL gl_read() VAL [gl_list={6442450936:0}] [L676] int tmp ; [L677] int tmp___0 ; VAL [gl_list={6442450936:0}] [L680] COND TRUE 1 VAL [gl_list={6442450936:0}] [L683] tmp = __VERIFIER_nondet_int() [L684] CALL gl_insert(tmp) VAL [\old(value)=3, gl_list={6442450936:0}] [L622] struct node *node ; [L623] void *tmp ; [L624] unsigned int __cil_tmp4 ; [L625] unsigned int __cil_tmp5 ; [L626] unsigned int __cil_tmp6 ; [L627] struct list_head *__cil_tmp7 ; [L628] unsigned int __cil_tmp8 ; [L629] unsigned int __cil_tmp9 ; [L630] unsigned int __cil_tmp10 ; [L631] unsigned int __cil_tmp11 ; [L632] unsigned int __cil_tmp12 ; [L633] unsigned int __cil_tmp13 ; [L634] unsigned int __cil_tmp14 ; [L635] unsigned int __cil_tmp15 ; [L638] __cil_tmp4 = (unsigned int )20UL [L639] tmp = malloc(__cil_tmp4) [L640] node = (struct node *)tmp VAL [\old(value)=3, __cil_tmp4=20, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L642] COND FALSE !(! node) VAL [\old(value)=3, __cil_tmp4=20, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L649] *((int *)node) = value [L650] __cil_tmp5 = (unsigned int )node [L651] __cil_tmp6 = __cil_tmp5 + 4 [L652] __cil_tmp7 = (struct list_head *)__cil_tmp6 VAL [\old(value)=3, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L653] CALL list_add(__cil_tmp7, & gl_list) VAL [gl_list={6442450936:0}, head={6442450936:0}, new={0:2147483640}] [L595] struct list_head *__cil_tmp3 ; [L598] EXPR \read(*head) [L598] __cil_tmp3 = *((struct list_head **)head) [L599] CALL __list_add(new, head, __cil_tmp3) VAL [gl_list={6442450936:0}, new={0:2147483640}, next={6442450936:0}, prev={6442450936:0}] [L567] unsigned int __cil_tmp4 ; [L568] unsigned int __cil_tmp5 ; [L569] unsigned int __cil_tmp6 ; [L570] unsigned int __cil_tmp7 ; [L572] __cil_tmp4 = (unsigned int )next [L573] __cil_tmp5 = __cil_tmp4 + 4 [L574] *((struct list_head **)__cil_tmp5) = new [L575] *((struct list_head **)new) = next [L576] __cil_tmp6 = (unsigned int )new [L577] __cil_tmp7 = __cil_tmp6 + 4 [L578] *((struct list_head **)__cil_tmp7) = prev [L579] *((struct list_head **)prev) = new VAL [__cil_tmp4=2147483640, __cil_tmp5=2147483644, __cil_tmp6=2147483640, __cil_tmp7=2147483644, gl_list={6442450936:0}, new={0:2147483640}, new={0:2147483640}, next={6442450936:0}, next={6442450936:0}, prev={6442450936:0}, prev={6442450936:0}] [L599] RET __list_add(new, head, __cil_tmp3) VAL [__cil_tmp3={6442450936:0}, gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}, new={0:2147483640}, new={0:2147483640}] [L653] RET list_add(__cil_tmp7, & gl_list) VAL [\old(value)=3, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L656] COND TRUE 1 VAL [\old(value)=3, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L658] __cil_tmp8 = (unsigned int )node [L659] __cil_tmp9 = __cil_tmp8 + 12 [L660] __cil_tmp10 = (unsigned int )node [L661] __cil_tmp11 = __cil_tmp10 + 12 [L662] *((struct list_head **)__cil_tmp9) = (struct list_head *)__cil_tmp11 [L663] __cil_tmp12 = (unsigned int )node [L664] __cil_tmp13 = __cil_tmp12 + 12 [L665] __cil_tmp14 = (unsigned int )node [L666] __cil_tmp15 = __cil_tmp14 + 12 [L667] *((struct list_head **)__cil_tmp13) = (struct list_head *)__cil_tmp15 VAL [\old(value)=3, __cil_tmp10=2147483636, __cil_tmp11=2147483648, __cil_tmp12=2147483636, __cil_tmp13=2147483648, __cil_tmp14=2147483636, __cil_tmp15=2147483648, __cil_tmp4=20, __cil_tmp5=2147483636, __cil_tmp6=2147483640, __cil_tmp7={0:2147483640}, __cil_tmp8=2147483636, __cil_tmp9=2147483648, gl_list={6442450936:0}, malloc(__cil_tmp4)={6442450932:0}, node={6442450932:0}, tmp={6442450932:0}, value=3] [L684] RET gl_insert(tmp) VAL [gl_list={6442450936:0}, tmp=3] [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) VAL [gl_list={6442450936:0}, tmp=3, tmp___0=0] [L839] RET gl_read() VAL [gl_list={6442450936:0}] [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) VAL [__cil_tmp1={6442450936:0}, gl_list={6442450936:0}] [L841] CALL inspect(__cil_tmp1) VAL [gl_list={6442450936:0}, head={6442450936:0}] [L55] struct node const *node ; [L56] unsigned int __cil_tmp3 ; [L57] struct list_head *__cil_tmp4 ; [L58] unsigned int __cil_tmp5 ; [L59] int __cil_tmp6 ; [L60] unsigned int __cil_tmp7 ; [L61] unsigned int __cil_tmp8 ; [L62] unsigned int __cil_tmp9 ; [L63] struct list_head *__cil_tmp10 ; [L64] unsigned int __cil_tmp11 ; [L65] int __cil_tmp12 ; [L66] unsigned int __cil_tmp13 ; [L67] unsigned int __cil_tmp14 ; [L68] struct list_head *__cil_tmp15 ; [L69] unsigned int __cil_tmp16 ; [L70] struct list_head *__cil_tmp17 ; [L71] unsigned int __cil_tmp18 ; [L72] int __cil_tmp19 ; [L73] unsigned int __cil_tmp20 ; [L74] unsigned int __cil_tmp21 ; [L75] unsigned int __cil_tmp22 ; [L76] struct list_head *__cil_tmp23 ; [L77] unsigned int __cil_tmp24 ; [L78] int __cil_tmp25 ; [L79] struct node *__cil_tmp26 ; [L80] unsigned int __cil_tmp27 ; [L81] unsigned int __cil_tmp28 ; [L82] struct list_head *__cil_tmp29 ; [L83] unsigned long __cil_tmp30 ; [L84] char *__cil_tmp31 ; [L85] char *__cil_tmp32 ; [L86] struct node *__cil_tmp33 ; [L87] unsigned int __cil_tmp34 ; [L88] unsigned int __cil_tmp35 ; [L89] struct list_head const *__cil_tmp36 ; [L90] unsigned int __cil_tmp37 ; [L91] unsigned int __cil_tmp38 ; [L92] unsigned int __cil_tmp39 ; [L93] struct list_head *__cil_tmp40 ; [L94] unsigned int __cil_tmp41 ; [L95] int __cil_tmp42 ; [L96] unsigned int __cil_tmp43 ; [L97] unsigned int __cil_tmp44 ; [L98] struct list_head const *__cil_tmp45 ; [L99] unsigned int __cil_tmp46 ; [L100] unsigned int __cil_tmp47 ; [L101] unsigned int __cil_tmp48 ; [L102] unsigned int __cil_tmp49 ; [L103] struct list_head *__cil_tmp50 ; [L104] unsigned int __cil_tmp51 ; [L105] int __cil_tmp52 ; [L106] unsigned int __cil_tmp53 ; [L107] unsigned int __cil_tmp54 ; [L108] struct list_head const *__cil_tmp55 ; [L109] unsigned int __cil_tmp56 ; [L110] unsigned int __cil_tmp57 ; [L111] unsigned int __cil_tmp58 ; [L112] struct list_head *__cil_tmp59 ; [L113] unsigned int __cil_tmp60 ; [L114] int __cil_tmp61 ; [L115] unsigned int __cil_tmp62 ; [L116] unsigned int __cil_tmp63 ; [L117] struct list_head const *__cil_tmp64 ; [L118] unsigned int __cil_tmp65 ; [L119] unsigned int __cil_tmp66 ; [L120] unsigned int __cil_tmp67 ; [L121] unsigned int __cil_tmp68 ; [L122] struct list_head *__cil_tmp69 ; [L123] unsigned int __cil_tmp70 ; [L124] int __cil_tmp71 ; [L125] struct node const *__cil_tmp72 ; [L126] unsigned int __cil_tmp73 ; [L127] unsigned int __cil_tmp74 ; [L128] int __cil_tmp75 ; [L129] unsigned int __cil_tmp76 ; [L130] unsigned int __cil_tmp77 ; [L131] struct list_head const *__cil_tmp78 ; [L132] struct node const *__cil_tmp79 ; [L133] unsigned int __cil_tmp80 ; [L134] unsigned int __cil_tmp81 ; [L135] int __cil_tmp82 ; [L136] int const *__cil_tmp83 ; [L137] struct node const *__cil_tmp84 ; [L138] unsigned int __cil_tmp85 ; [L139] unsigned int __cil_tmp86 ; [L140] int __cil_tmp87 ; [L141] unsigned int __cil_tmp88 ; [L142] unsigned int __cil_tmp89 ; [L143] struct list_head *__cil_tmp90 ; [L144] unsigned int __cil_tmp91 ; [L145] unsigned int __cil_tmp92 ; [L146] struct list_head *__cil_tmp93 ; [L147] unsigned int __cil_tmp94 ; [L148] unsigned int __cil_tmp95 ; [L149] int __cil_tmp96 ; [L150] unsigned int __cil_tmp97 ; [L151] unsigned int __cil_tmp98 ; [L152] unsigned int __cil_tmp99 ; [L153] struct list_head *__cil_tmp100 ; [L154] struct list_head *__cil_tmp101 ; [L155] unsigned int __cil_tmp102 ; [L156] unsigned int __cil_tmp103 ; [L157] int __cil_tmp104 ; [L158] struct list_head *__cil_tmp105 ; [L159] unsigned int __cil_tmp106 ; [L160] unsigned int __cil_tmp107 ; [L161] unsigned int __cil_tmp108 ; [L162] struct list_head const *__cil_tmp109 ; [L163] unsigned int __cil_tmp110 ; [L164] struct list_head *__cil_tmp111 ; [L165] unsigned int __cil_tmp112 ; [L166] struct node *__cil_tmp113 ; [L167] unsigned int __cil_tmp114 ; [L168] unsigned int __cil_tmp115 ; [L169] struct list_head *__cil_tmp116 ; [L170] unsigned long __cil_tmp117 ; [L171] char *__cil_tmp118 ; [L172] char *__cil_tmp119 ; [L173] struct node *__cil_tmp120 ; [L174] unsigned int __cil_tmp121 ; [L175] int __cil_tmp122 ; VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L179] COND TRUE 1 VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L181] COND FALSE !(! head) VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L192] COND TRUE 1 VAL [gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L195] __cil_tmp3 = (unsigned int )head [L196] EXPR \read(*head) [L196] __cil_tmp4 = *((struct list_head * const *)head) [L197] __cil_tmp5 = (unsigned int )__cil_tmp4 [L198] __cil_tmp6 = __cil_tmp5 != __cil_tmp3 VAL [__cil_tmp3=2147483640, __cil_tmp4={0:2147483640}, __cil_tmp5=2147483640, __cil_tmp6=0, gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L199] COND TRUE ! __cil_tmp6 VAL [__cil_tmp3=2147483640, __cil_tmp4={0:2147483640}, __cil_tmp5=2147483640, __cil_tmp6=0, gl_list={6442450936:0}, head={6442450936:0}, head={6442450936:0}] [L201] CALL fail() VAL [gl_list={6442450936:0}] [L46] reach_error() VAL [gl_list={6442450936:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3106.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 8.5ms, AutomataDifference: 2011.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 278 SDtfs, 1067 SDslu, 157 SDs, 0 SdLazy, 606 SolverSat, 339 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1138.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 472.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 77.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.4ms SsaConstructionTime, 247.9ms SatisfiabilityAnalysisTime, 475.0ms InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...