./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_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_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:03:42,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:03:42,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:03:42,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:03:42,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:03:42,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:03:42,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:03:42,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:03:42,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:03:42,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:03:42,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:03:42,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:03:42,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:03:42,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:03:42,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:03:42,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:03:42,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:03:42,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:03:42,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:03:42,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:03:42,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:03:42,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:03:42,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:03:42,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:03:42,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:03:42,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:03:42,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:03:42,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:03:42,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:03:42,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:03:42,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:03:42,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:03:42,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:03:42,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:03:42,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:03:42,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:03:42,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:03:42,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:03:42,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:03:42,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:03:42,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:03:42,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-22 23:03:42,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:03:42,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:03:42,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:03:42,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:03:42,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:03:42,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-22 23:03:42,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:03:42,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:03:42,763 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:03:42,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:03:42,765 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:03:42,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:03:42,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:03:42,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:03:42,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:03:42,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:03:42,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:03:42,766 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:03:42,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:03:42,768 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:03:42,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:03:42,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:03:42,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:03:42,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-22 23:03:42,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:03:42,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:03:42,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:03:42,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:03:42,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:03:42,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:03:42,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:03:42,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:03:42,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-22 23:03:42,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:03:42,777 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-22 23:03:42,779 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-22 23:03:42,779 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_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2021-11-22 23:03:43,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:03:43,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:03:43,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:03:43,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:03:43,051 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:03:43,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-22 23:03:43,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/data/ab175209d/52830ea5be8849e593e7d0ed3a890483/FLAG6f6d1f688 [2021-11-22 23:03:43,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:03:43,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-22 23:03:43,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/data/ab175209d/52830ea5be8849e593e7d0ed3a890483/FLAG6f6d1f688 [2021-11-22 23:03:43,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/data/ab175209d/52830ea5be8849e593e7d0ed3a890483 [2021-11-22 23:03:43,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:03:43,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:03:43,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:03:43,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:03:43,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:03:43,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:03:43" (1/1) ... [2021-11-22 23:03:43,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3791ef54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:43, skipping insertion in model container [2021-11-22 23:03:43,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:03:43" (1/1) ... [2021-11-22 23:03:43,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:03:44,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:03:44,211 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_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2021-11-22 23:03:44,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:03:44,404 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:03:44,418 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_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2021-11-22 23:03:44,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:03:44,499 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:03:44,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44 WrapperNode [2021-11-22 23:03:44,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:03:44,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:03:44,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:03:44,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:03:44,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,547 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2021-11-22 23:03:44,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:03:44,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:03:44,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:03:44,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:03:44,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:03:44,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:03:44,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:03:44,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:03:44,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (1/1) ... [2021-11-22 23:03:44,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:03:44,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:44,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 23:03:44,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 23:03:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:03:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-22 23:03:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:03:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:03:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-22 23:03:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-22 23:03:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:03:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:03:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:03:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:03:44,663 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 23:03:44,798 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:03:44,800 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:03:44,959 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:03:44,967 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:03:44,968 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 23:03:44,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:03:44 BoogieIcfgContainer [2021-11-22 23:03:44,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:03:44,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:03:44,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:03:44,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:03:44,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:03:43" (1/3) ... [2021-11-22 23:03:44,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678bb8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:03:44, skipping insertion in model container [2021-11-22 23:03:44,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:44" (2/3) ... [2021-11-22 23:03:44,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678bb8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:03:44, skipping insertion in model container [2021-11-22 23:03:44,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:03:44" (3/3) ... [2021-11-22 23:03:44,988 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-22 23:03:44,993 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 23:03:44,993 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:03:44,993 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 23:03:44,994 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 23:03:45,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,033 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,034 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,034 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,034 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,042 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,043 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:45,046 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 23:03:45,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:03:45,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:45,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:03:45,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-22 23:03:45,141 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-22 23:03:45,148 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=PARTIAL_ORDER_FA, 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 23:03:45,148 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 23:03:45,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:03:45,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:45,374 INFO L85 PathProgramCache]: Analyzing trace with hash 687613271, now seen corresponding path program 1 times [2021-11-22 23:03:45,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:45,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442805731] [2021-11-22 23:03:45,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:45,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:03:45,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:45,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442805731] [2021-11-22 23:03:45,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442805731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:03:45,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:03:45,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 23:03:45,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955520874] [2021-11-22 23:03:45,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:03:45,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 23:03:45,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:45,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 23:03:45,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 23:03:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:45,792 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:45,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:45,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:45,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:03:45,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:03:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:45,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1794058796, now seen corresponding path program 1 times [2021-11-22 23:03:45,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:45,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840246243] [2021-11-22 23:03:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:45,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:03:46,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:46,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840246243] [2021-11-22 23:03:46,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840246243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:03:46,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:03:46,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 23:03:46,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459302931] [2021-11-22 23:03:46,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:03:46,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 23:03:46,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:46,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 23:03:46,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 23:03:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:46,211 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:46,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:46,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:46,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:03:46,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:03:46,290 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:03:46,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:46,291 INFO L85 PathProgramCache]: Analyzing trace with hash -280445477, now seen corresponding path program 1 times [2021-11-22 23:03:46,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:46,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265124094] [2021-11-22 23:03:46,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:46,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:03:46,311 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:03:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:03:46,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 23:03:46,359 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 23:03:46,361 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 23:03:46,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-22 23:03:46,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 23:03:46,371 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-22 23:03:46,376 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-22 23:03:46,376 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 23:03:46,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:03:46 BasicIcfg [2021-11-22 23:03:46,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 23:03:46,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:03:46,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:03:46,414 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:03:46,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:03:44" (3/4) ... [2021-11-22 23:03:46,416 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:03:46,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/witness.graphml [2021-11-22 23:03:46,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:03:46,473 INFO L158 Benchmark]: Toolchain (without parser) took 2519.00ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 64.9MB in the beginning and 66.3MB in the end (delta: -1.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-22 23:03:46,473 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory was 53.8MB in the beginning and 53.7MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:03:46,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.82ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 64.6MB in the end (delta: 29.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 23:03:46,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.37ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 62.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:03:46,475 INFO L158 Benchmark]: Boogie Preprocessor took 39.65ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 61.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:03:46,476 INFO L158 Benchmark]: RCFGBuilder took 379.81ms. Allocated memory is still 100.7MB. Free memory was 61.4MB in the beginning and 49.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 23:03:46,477 INFO L158 Benchmark]: TraceAbstraction took 1441.08ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 49.5MB in the beginning and 69.6MB in the end (delta: -20.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 23:03:46,477 INFO L158 Benchmark]: Witness Printer took 58.78ms. Allocated memory is still 121.6MB. Free memory was 69.6MB in the beginning and 66.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:03:46,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory was 53.8MB in the beginning and 53.7MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.82ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 64.6MB in the end (delta: 29.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.37ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 62.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.65ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 61.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.81ms. Allocated memory is still 100.7MB. Free memory was 61.4MB in the beginning and 49.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1441.08ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 49.5MB in the beginning and 69.6MB in the end (delta: -20.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 58.78ms. Allocated memory is still 121.6MB. Free memory was 69.6MB in the beginning and 66.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 387, positive: 372, positive conditional: 82, positive unconditional: 290, negative: 15, negative conditional: 5, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 384, positive: 372, positive conditional: 82, positive unconditional: 290, negative: 12, negative conditional: 2, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 384, positive: 372, positive conditional: 82, positive unconditional: 290, negative: 12, negative conditional: 2, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 386, positive: 372, positive conditional: 45, positive unconditional: 327, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 386, positive: 372, positive conditional: 24, positive unconditional: 348, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 386, positive: 372, positive conditional: 24, positive unconditional: 348, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 302, positive: 291, positive conditional: 1, positive unconditional: 290, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 302, positive: 281, positive conditional: 0, positive unconditional: 281, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, positive: 94, positive conditional: 3, positive unconditional: 91, negative: 49, negative conditional: 2, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 386, positive: 81, positive conditional: 23, positive unconditional: 58, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 302, unknown conditional: 2, unknown unconditional: 300] , Statistics on independence cache: Total cache size (in pairs): 302, Positive cache size: 291, Positive conditional cache size: 1, Positive unconditional cache size: 290, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 21, Maximal queried relation: 1, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 69, Number of trivial persistent sets: 50, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 300, positive: 290, positive conditional: 0, positive unconditional: 290, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 387, positive: 372, positive conditional: 82, positive unconditional: 290, negative: 15, negative conditional: 5, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 384, positive: 372, positive conditional: 82, positive unconditional: 290, negative: 12, negative conditional: 2, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 384, positive: 372, positive conditional: 82, positive unconditional: 290, negative: 12, negative conditional: 2, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 386, positive: 372, positive conditional: 45, positive unconditional: 327, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 386, positive: 372, positive conditional: 24, positive unconditional: 348, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 386, positive: 372, positive conditional: 24, positive unconditional: 348, negative: 14, negative conditional: 2, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 302, positive: 291, positive conditional: 1, positive unconditional: 290, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 302, positive: 281, positive conditional: 0, positive unconditional: 281, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, positive: 94, positive conditional: 3, positive unconditional: 91, negative: 49, negative conditional: 2, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 386, positive: 81, positive conditional: 23, positive unconditional: 58, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 302, unknown conditional: 2, unknown unconditional: 300] , Statistics on independence cache: Total cache size (in pairs): 302, Positive cache size: 291, Positive conditional cache size: 1, Positive unconditional cache size: 290, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 21, Maximal queried relation: 1, Independence queries for same thread: 3 - 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: [L682] 0 int g = 42; VAL [g=42] [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=42] [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, g=42] [L694] 0 int r = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, B={4:0}, g=42, r=0] [L695] 0 int t; VAL [A={3:0}, B={4:0}, g=42, r=0] [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=42, id={5:0}, r=0] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0] [L705] 0 t = g VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0, t=42] [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 89 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 388 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! [2021-11-22 23:03:46,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-22 23:03:46,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97dca1d-7b13-429f-8bf0-cbf21e02d9d4/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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