./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 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/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_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3 --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-47ea020 [2021-11-07 04:56:45,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 04:56:45,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 04:56:45,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 04:56:45,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 04:56:45,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 04:56:45,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 04:56:45,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 04:56:45,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 04:56:45,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 04:56:45,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 04:56:45,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 04:56:45,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 04:56:45,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 04:56:45,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 04:56:45,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 04:56:45,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 04:56:45,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 04:56:45,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 04:56:45,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 04:56:45,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 04:56:45,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 04:56:45,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 04:56:45,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 04:56:45,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 04:56:45,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 04:56:45,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 04:56:45,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 04:56:45,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 04:56:45,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 04:56:45,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 04:56:45,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 04:56:45,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 04:56:45,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 04:56:45,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 04:56:45,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 04:56:45,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 04:56:45,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 04:56:45,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 04:56:45,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 04:56:45,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 04:56:45,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-07 04:56:45,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 04:56:45,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 04:56:45,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 04:56:45,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 04:56:45,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 04:56:45,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 04:56:45,999 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 04:56:45,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 04:56:45,999 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 04:56:46,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 04:56:46,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 04:56:46,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 04:56:46,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 04:56:46,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 04:56:46,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 04:56:46,001 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 04:56:46,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 04:56:46,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 04:56:46,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 04:56:46,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 04:56:46,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 04:56:46,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-07 04:56:46,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 04:56:46,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 04:56:46,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 04:56:46,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 04:56:46,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 04:56:46,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 04:56:46,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 04:56:46,010 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 04:56:46,010 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-07 04:56:46,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 04:56:46,011 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-07 04:56:46,011 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-07 04:56:46,011 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_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2021-11-07 04:56:46,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 04:56:46,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 04:56:46,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 04:56:46,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 04:56:46,307 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 04:56:46,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-07 04:56:46,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/data/44c2d6ec6/ac73f16ddccd410b94a802f7e66b4d13/FLAGe64a0640f [2021-11-07 04:56:46,848 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 04:56:46,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-07 04:56:46,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/data/44c2d6ec6/ac73f16ddccd410b94a802f7e66b4d13/FLAGe64a0640f [2021-11-07 04:56:47,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/data/44c2d6ec6/ac73f16ddccd410b94a802f7e66b4d13 [2021-11-07 04:56:47,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 04:56:47,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 04:56:47,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 04:56:47,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 04:56:47,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 04:56:47,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a3cbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47, skipping insertion in model container [2021-11-07 04:56:47,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 04:56:47,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 04:56:47,441 WARN L228 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_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2021-11-07 04:56:47,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 04:56:47,620 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 04:56:47,639 WARN L228 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_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2021-11-07 04:56:47,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 04:56:47,727 INFO L208 MainTranslator]: Completed translation [2021-11-07 04:56:47,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47 WrapperNode [2021-11-07 04:56:47,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 04:56:47,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 04:56:47,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 04:56:47,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 04:56:47,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 04:56:47,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 04:56:47,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 04:56:47,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 04:56:47,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 04:56:47,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 04:56:47,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 04:56:47,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 04:56:47,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (1/1) ... [2021-11-07 04:56:47,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 04:56:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/z3 [2021-11-07 04:56:47,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 04:56:47,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 04:56:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 04:56:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 04:56:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 04:56:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 04:56:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 04:56:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 04:56:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 04:56:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 04:56:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 04:56:47,891 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 04:56:48,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 04:56:48,146 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 04:56:48,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:56:48 BoogieIcfgContainer [2021-11-07 04:56:48,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 04:56:48,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 04:56:48,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 04:56:48,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 04:56:48,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:56:47" (1/3) ... [2021-11-07 04:56:48,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3f26d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:56:48, skipping insertion in model container [2021-11-07 04:56:48,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:56:47" (2/3) ... [2021-11-07 04:56:48,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3f26d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:56:48, skipping insertion in model container [2021-11-07 04:56:48,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:56:48" (3/3) ... [2021-11-07 04:56:48,158 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-07 04:56:48,163 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 04:56:48,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 04:56:48,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 04:56:48,164 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 04:56:48,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,210 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,210 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,211 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,211 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,218 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,229 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,229 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,230 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,230 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,230 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 04:56:48,234 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-07 04:56:48,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-07 04:56:48,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/z3 [2021-11-07 04:56:48,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-07 04:56:48,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-07 04:56:48,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-07 04:56:48,340 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 [2021-11-07 04:56:48,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 04:56:48,580 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 04:56:48,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 04:56:48,593 INFO L85 PathProgramCache]: Analyzing trace with hash 789266082, now seen corresponding path program 1 times [2021-11-07 04:56:48,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 04:56:48,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767142607] [2021-11-07 04:56:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 04:56:48,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 04:56:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 04:56:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 04:56:48,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 04:56:48,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767142607] [2021-11-07 04:56:48,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767142607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 04:56:48,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 04:56:48,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 04:56:48,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221711407] [2021-11-07 04:56:48,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 04:56:48,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 04:56:49,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 04:56:49,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 04:56:49,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 04:56:49,016 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-07 04:56:49,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-11-07 04:56:49,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-07 04:56:49,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 04:56:49,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 04:56:49,202 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 04:56:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 04:56:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1112642757, now seen corresponding path program 1 times [2021-11-07 04:56:49,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 04:56:49,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563242092] [2021-11-07 04:56:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 04:56:49,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 04:56:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 04:56:49,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 04:56:49,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 04:56:49,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563242092] [2021-11-07 04:56:49,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563242092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 04:56:49,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 04:56:49,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 04:56:49,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956163528] [2021-11-07 04:56:49,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 04:56:49,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 04:56:49,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 04:56:49,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 04:56:49,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 04:56:49,392 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-07 04:56:49,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 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) [2021-11-07 04:56:49,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-07 04:56:49,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-07 04:56:49,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 04:56:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 04:56:49,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 04:56:49,533 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-07 04:56:49,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 04:56:49,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1924446114, now seen corresponding path program 1 times [2021-11-07 04:56:49,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 04:56:49,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751173111] [2021-11-07 04:56:49,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 04:56:49,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 04:56:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 04:56:49,592 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 04:56:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 04:56:49,676 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 04:56:49,676 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 04:56:49,677 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 04:56:49,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 04:56:49,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 04:56:49,687 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 04:56:49,695 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 04:56:49,697 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 04:56:49,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:56:49 BasicIcfg [2021-11-07 04:56:49,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 04:56:49,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 04:56:49,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 04:56:49,768 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 04:56:49,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:56:48" (3/4) ... [2021-11-07 04:56:49,771 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 04:56:49,882 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/witness.graphml [2021-11-07 04:56:49,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 04:56:49,884 INFO L168 Benchmark]: Toolchain (without parser) took 2702.78 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 55.3 MB in the beginning and 93.3 MB in the end (delta: -38.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-11-07 04:56:49,885 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 04:56:49,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.47 ms. Allocated memory is still 92.3 MB. Free memory was 55.1 MB in the beginning and 56.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 04:56:49,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.35 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 55.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 04:56:49,887 INFO L168 Benchmark]: Boogie Preprocessor took 22.67 ms. Allocated memory is still 92.3 MB. Free memory was 55.0 MB in the beginning and 53.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 04:56:49,893 INFO L168 Benchmark]: RCFGBuilder took 348.78 ms. Allocated memory is still 92.3 MB. Free memory was 53.6 MB in the beginning and 42.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 04:56:49,893 INFO L168 Benchmark]: TraceAbstraction took 1616.66 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 41.6 MB in the beginning and 40.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-11-07 04:56:49,894 INFO L168 Benchmark]: Witness Printer took 114.84 ms. Allocated memory is still 121.6 MB. Free memory was 40.6 MB in the beginning and 93.3 MB in the end (delta: -52.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 04:56:49,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 543.47 ms. Allocated memory is still 92.3 MB. Free memory was 55.1 MB in the beginning and 56.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.35 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 55.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.67 ms. Allocated memory is still 92.3 MB. Free memory was 55.0 MB in the beginning and 53.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 348.78 ms. Allocated memory is still 92.3 MB. Free memory was 53.6 MB in the beginning and 42.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1616.66 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 41.6 MB in the beginning and 40.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * Witness Printer took 114.84 ms. Allocated memory is still 121.6 MB. Free memory was 40.6 MB in the beginning and 93.3 MB in the end (delta: -52.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 359, positive: 344, positive conditional: 80, positive unconditional: 264, 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: 356, positive: 344, positive conditional: 80, positive unconditional: 264, 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: 356, positive: 344, positive conditional: 80, positive unconditional: 264, 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: 358, positive: 344, positive conditional: 43, positive unconditional: 301, 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: 358, positive: 344, positive conditional: 24, positive unconditional: 320, 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: 358, positive: 344, positive conditional: 24, positive unconditional: 320, 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: 276, positive: 265, positive conditional: 1, positive unconditional: 264, 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: 276, positive: 255, positive conditional: 0, positive unconditional: 255, 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: 153, positive: 103, positive conditional: 6, positive unconditional: 96, negative: 50, negative conditional: 2, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 358, positive: 79, positive conditional: 23, positive unconditional: 56, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 276, unknown conditional: 2, unknown unconditional: 274] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 265, Positive conditional cache size: 1, Positive unconditional cache size: 264, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 19, Maximal queried relation: 1, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 206, Number of persistent set computation: 62, Number of trivial persistent sets: 45, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 274, positive: 264, positive conditional: 0, positive unconditional: 264, 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: 359, positive: 344, positive conditional: 80, positive unconditional: 264, 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: 356, positive: 344, positive conditional: 80, positive unconditional: 264, 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: 356, positive: 344, positive conditional: 80, positive unconditional: 264, 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: 358, positive: 344, positive conditional: 43, positive unconditional: 301, 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: 358, positive: 344, positive conditional: 24, positive unconditional: 320, 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: 358, positive: 344, positive conditional: 24, positive unconditional: 320, 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: 276, positive: 265, positive conditional: 1, positive unconditional: 264, 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: 276, positive: 255, positive conditional: 0, positive unconditional: 255, 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: 153, positive: 103, positive conditional: 6, positive unconditional: 96, negative: 50, negative conditional: 2, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 358, positive: 79, positive conditional: 23, positive unconditional: 56, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 276, unknown conditional: 2, unknown unconditional: 274] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 265, Positive conditional cache size: 1, Positive unconditional cache size: 264, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 19, 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={7:0}, g=42] [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={7:0}, B={9:0}, g=42] [L694] 0 int r = __VERIFIER_nondet_int(); VAL [A={7:0}, B={9:0}, g=42] [L695] 0 int t; VAL [A={7:0}, B={9:0}, g=42] [L696] 0 pthread_t id; VAL [A={7:0}, B={9:0}, g=42] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L700] COND FALSE 0 !(\read(r)) VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L705] 0 t = g VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L19] COND TRUE 0 !(cond) VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L19] 0 reach_error() VAL [A={7:0}, arg={0:0}, B={9:0}, 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, 81 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, 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: No data available, 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, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 410 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! [2021-11-07 04:56:49,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 04:56:50,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f5eb-2f88-42c0-819d-fe9f2560a9d3/bin/ugemcutter-iGDDIIUDf3/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