./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0 --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 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:03:53,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:03:53,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:03:53,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:03:53,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:03:53,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:03:53,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:03:53,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:03:53,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:03:53,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:03:53,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:03:53,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:03:53,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:03:53,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:03:53,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:03:53,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:03:53,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:03:53,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:03:53,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:03:53,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:03:53,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:03:53,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:03:53,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:03:53,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:03:53,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:03:53,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:03:53,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:03:53,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:03:53,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:03:53,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:03:53,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:03:53,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:03:53,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:03:53,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:03:53,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:03:53,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:03:53,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:03:53,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:03:53,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:03:53,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:03:53,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:03:53,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:03:53,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:03:53,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:03:53,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:03:53,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:03:53,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:03:53,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:03:53,659 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:03:53,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:03:53,660 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:03:53,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:03:53,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:03:53,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:03:53,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:03:53,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:03:53,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:03:53,661 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:03:53,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:03:53,662 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:03:53,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:03:53,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:03:53,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:03:53,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:03:53,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:03:53,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:03:53,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:03:53,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:03:53,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:03:53,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:03:53,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:03:53,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:03:53,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:03:53,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:03:53,665 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2021-11-22 15:03:53,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:03:53,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:03:53,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:03:53,950 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:03:53,950 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:03:53,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2021-11-22 15:03:54,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/data/51c2bddc7/123c3fe3427f4d46ae20ffb0356aad3b/FLAG9858171f9 [2021-11-22 15:03:54,651 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:03:54,651 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2021-11-22 15:03:54,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/data/51c2bddc7/123c3fe3427f4d46ae20ffb0356aad3b/FLAG9858171f9 [2021-11-22 15:03:54,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/data/51c2bddc7/123c3fe3427f4d46ae20ffb0356aad3b [2021-11-22 15:03:54,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:03:54,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:03:54,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:03:54,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:03:54,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:03:54,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:03:54" (1/1) ... [2021-11-22 15:03:54,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349f5075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:54, skipping insertion in model container [2021-11-22 15:03:54,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:03:54" (1/1) ... [2021-11-22 15:03:54,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:03:54,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:03:55,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2021-11-22 15:03:55,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:03:55,307 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:03:55,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2021-11-22 15:03:55,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:03:55,439 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:03:55,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55 WrapperNode [2021-11-22 15:03:55,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:03:55,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:03:55,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:03:55,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:03:55,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,514 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-11-22 15:03:55,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:03:55,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:03:55,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:03:55,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:03:55,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:03:55,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:03:55,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:03:55,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:03:55,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (1/1) ... [2021-11-22 15:03:55,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:03:55,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:03:55,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:03:55,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:03:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:03:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:03:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-22 15:03:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:03:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:03:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-22 15:03:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-22 15:03:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:03:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:03:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:03:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:03:55,648 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 15:03:55,781 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:03:55,782 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:03:56,010 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:03:56,018 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:03:56,018 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:03:56,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:03:56 BoogieIcfgContainer [2021-11-22 15:03:56,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:03:56,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:03:56,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:03:56,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:03:56,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:03:54" (1/3) ... [2021-11-22 15:03:56,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121d1c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:03:56, skipping insertion in model container [2021-11-22 15:03:56,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:03:55" (2/3) ... [2021-11-22 15:03:56,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121d1c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:03:56, skipping insertion in model container [2021-11-22 15:03:56,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:03:56" (3/3) ... [2021-11-22 15:03:56,029 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2021-11-22 15:03:56,035 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 15:03:56,035 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:03:56,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:03:56,036 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 15:03:56,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,081 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,081 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,081 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,081 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,082 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,083 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,084 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,084 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,084 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,085 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,085 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,085 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,086 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,089 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,091 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:03:56,107 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-22 15:03:56,172 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:03:56,180 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 [2021-11-22 15:03:56,180 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 15:03:56,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2021-11-22 15:03:56,233 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-11-22 15:03:56,233 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-22 15:03:56,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2021-11-22 15:03:56,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 150 flow [2021-11-22 15:03:56,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2021-11-22 15:03:56,259 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-11-22 15:03:56,259 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-22 15:03:56,260 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:03:56,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:56,261 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 15:03:56,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash -881270525, now seen corresponding path program 1 times [2021-11-22 15:03:56,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:56,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719622659] [2021-11-22 15:03:56,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:56,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:03:56,405 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:03:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:03:56,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:03:56,470 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:03:56,471 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 15:03:56,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-22 15:03:56,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:03:56,479 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-22 15:03:56,484 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-22 15:03:56,484 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:03:56,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:03:56 BasicIcfg [2021-11-22 15:03:56,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:03:56,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:03:56,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:03:56,518 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:03:56,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:03:56" (3/4) ... [2021-11-22 15:03:56,520 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 15:03:56,566 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:03:56,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:03:56,568 INFO L158 Benchmark]: Toolchain (without parser) took 1664.80ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 61.3MB in the beginning and 70.6MB in the end (delta: -9.3MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,568 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:56,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.44ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 62.6MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.22ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 60.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,570 INFO L158 Benchmark]: Boogie Preprocessor took 39.28ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 59.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,571 INFO L158 Benchmark]: RCFGBuilder took 465.07ms. Allocated memory is still 96.5MB. Free memory was 59.4MB in the beginning and 48.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,572 INFO L158 Benchmark]: TraceAbstraction took 494.25ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 47.5MB in the beginning and 73.8MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:56,572 INFO L158 Benchmark]: Witness Printer took 49.44ms. Allocated memory is still 119.5MB. Free memory was 73.8MB in the beginning and 70.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,576 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.44ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 62.6MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.22ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 60.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.28ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 59.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.07ms. Allocated memory is still 96.5MB. Free memory was 59.4MB in the beginning and 48.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 494.25ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 47.5MB in the beginning and 73.8MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.44ms. Allocated memory is still 119.5MB. Free memory was 73.8MB in the beginning and 70.6MB in the end (delta: 3.2MB). 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: [L681] 0 int glob1 = 0; VAL [glob1=0] [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}, mutex2={4:0}] [L696] 0 pthread_t id; VAL [glob1=0, id={6:0}, mutex1={3:0}, mutex2={4:0}] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: 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, 87 locations, 2 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred 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, 42 NumberOfCodeBlocks, 42 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! [2021-11-22 15:03:56,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49ce87a2-6d5d-4045-b183-dc99ac3b8514/bin/uautomizer-w2VwFs6gM0/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