./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:44:40,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:44:40,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:44:40,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:44:40,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:44:40,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:44:40,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:44:40,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:44:40,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:44:40,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:44:40,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:44:40,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:44:40,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:44:40,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:44:40,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:44:40,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:44:40,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:44:40,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:44:40,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:44:40,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:44:40,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:44:40,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:44:40,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:44:40,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:44:40,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:44:40,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:44:40,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:44:40,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:44:40,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:44:40,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:44:40,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:44:40,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:44:40,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:44:40,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:44:40,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:44:40,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:44:40,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:44:40,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:44:40,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:44:40,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:44:40,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:44:40,710 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 20:44:40,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:44:40,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:44:40,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:44:40,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:44:40,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:44:40,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:44:40,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:44:40,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:44:40,725 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:44:40,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:44:40,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:44:40,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 20:44:40,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:44:40,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:44:40,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:44:40,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:44:40,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:44:40,727 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:44:40,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:44:40,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:44:40,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:44:40,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:44:40,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:44:40,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:44:40,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:44:40,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:44:40,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:44:40,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:44:40,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 20:44:40,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 20:44:40,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:44:40,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:44:40,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:44:40,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-02-20 20:44:40,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:44:40,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:44:40,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:44:40,948 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:44:40,948 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:44:40,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-02-20 20:44:40,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d81aa619/7f04bf9b99354095883dd55a4841d489/FLAG74de528c2 [2022-02-20 20:44:41,381 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:44:41,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-02-20 20:44:41,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d81aa619/7f04bf9b99354095883dd55a4841d489/FLAG74de528c2 [2022-02-20 20:44:41,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d81aa619/7f04bf9b99354095883dd55a4841d489 [2022-02-20 20:44:41,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:44:41,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:44:41,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:44:41,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:44:41,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:44:41,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:44:41" (1/1) ... [2022-02-20 20:44:41,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d695f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:41, skipping insertion in model container [2022-02-20 20:44:41,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:44:41" (1/1) ... [2022-02-20 20:44:41,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:44:41,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:44:41,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-02-20 20:44:42,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:44:42,078 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:44:42,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-02-20 20:44:42,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:44:42,152 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:44:42,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42 WrapperNode [2022-02-20 20:44:42,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:44:42,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:44:42,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:44:42,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:44:42,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,196 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-02-20 20:44:42,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:44:42,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:44:42,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:44:42,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:44:42,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:44:42,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:44:42,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:44:42,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:44:42,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (1/1) ... [2022-02-20 20:44:42,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:44:42,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:44:42,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 20:44:42,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 20:44:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 20:44:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:44:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 20:44:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-20 20:44:42,298 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-20 20:44:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 20:44:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 20:44:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:44:42,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:44:42,299 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 20:44:42,362 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:44:42,363 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:44:42,482 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:44:42,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:44:42,486 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 20:44:42,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:44:42 BoogieIcfgContainer [2022-02-20 20:44:42,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:44:42,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:44:42,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:44:42,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:44:42,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:44:41" (1/3) ... [2022-02-20 20:44:42,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634fa54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:44:42, skipping insertion in model container [2022-02-20 20:44:42,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:44:42" (2/3) ... [2022-02-20 20:44:42,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634fa54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:44:42, skipping insertion in model container [2022-02-20 20:44:42,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:44:42" (3/3) ... [2022-02-20 20:44:42,496 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-02-20 20:44:42,499 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 20:44:42,500 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:44:42,500 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 20:44:42,500 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 20:44:42,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,530 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,532 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,533 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,534 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,535 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,536 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,537 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,540 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,541 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 20:44:42,542 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-20 20:44:42,568 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:44:42,572 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 20:44:42,572 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 20:44:42,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2022-02-20 20:44:42,594 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2022-02-20 20:44:42,594 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-02-20 20:44:42,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-02-20 20:44:42,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 43 transitions, 91 flow [2022-02-20 20:44:42,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2022-02-20 20:44:42,604 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2022-02-20 20:44:42,604 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-02-20 20:44:42,605 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-02-20 20:44:42,605 INFO L254 CegarLoopForPetriNet]: 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] [2022-02-20 20:44:42,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:44:42,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:44:42,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1764370604, now seen corresponding path program 1 times [2022-02-20 20:44:42,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:44:42,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42615075] [2022-02-20 20:44:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:44:42,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:44:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:44:42,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:44:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:44:42,737 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 20:44:42,738 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:44:42,739 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-20 20:44:42,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-20 20:44:42,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-20 20:44:42,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 20:44:42,743 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 20:44:42,746 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 20:44:42,746 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:44:42,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:44:42 BasicIcfg [2022-02-20 20:44:42,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:44:42,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:44:42,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:44:42,772 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:44:42,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:44:42" (3/4) ... [2022-02-20 20:44:42,773 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-20 20:44:42,816 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 20:44:42,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:44:42,818 INFO L158 Benchmark]: Toolchain (without parser) took 1068.37ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 71.9MB in the beginning and 98.5MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:44:42,818 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:44:42,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.75ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 76.9MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 20:44:42,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.25ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 74.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:44:42,822 INFO L158 Benchmark]: Boogie Preprocessor took 21.47ms. Allocated memory is still 111.1MB. Free memory was 74.8MB in the beginning and 73.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:44:42,822 INFO L158 Benchmark]: RCFGBuilder took 268.52ms. Allocated memory is still 111.1MB. Free memory was 73.5MB in the beginning and 62.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 20:44:42,823 INFO L158 Benchmark]: TraceAbstraction took 282.92ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 62.3MB in the beginning and 101.4MB in the end (delta: -39.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:44:42,823 INFO L158 Benchmark]: Witness Printer took 44.99ms. Allocated memory is still 134.2MB. Free memory was 101.4MB in the beginning and 98.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:44:42,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.75ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 76.9MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.25ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 74.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.47ms. Allocated memory is still 111.1MB. Free memory was 74.8MB in the beginning and 73.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.52ms. Allocated memory is still 111.1MB. Free memory was 73.5MB in the beginning and 62.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 282.92ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 62.3MB in the beginning and 101.4MB in the end (delta: -39.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.99ms. Allocated memory is still 134.2MB. Free memory was 101.4MB in the beginning and 98.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, x=0] [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-02-20 20:44:42,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE