./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 06:50:46,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:50:46,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:50:46,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:50:46,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:50:46,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:50:46,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:50:46,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:50:46,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:50:46,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:50:46,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:50:46,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:50:46,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:50:46,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:50:46,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:50:46,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:50:46,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:50:46,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:50:46,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:50:46,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:50:46,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:50:46,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:50:46,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:50:46,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:50:46,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:50:46,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:50:46,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:50:46,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:50:46,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:50:46,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:50:46,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:50:46,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:50:46,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:50:46,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:50:46,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:50:46,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:50:46,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:50:46,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:50:46,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:50:46,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:50:46,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:50:46,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-11-23 06:50:46,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:50:46,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:50:46,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:50:46,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:50:46,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:50:46,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:50:46,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:50:46,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:50:46,840 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:50:46,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:50:46,842 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:50:46,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:50:46,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:50:46,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:50:46,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:50:46,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 06:50:46,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:50:46,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 06:50:46,844 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 06:50:46,846 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:50:46,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 06:50:46,847 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:50:46,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 06:50:46,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:50:46,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:50:46,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-23 06:50:46,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:50:46,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:50:46,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:50:46,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:50:46,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 06:50:46,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:50:46,857 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2022-11-23 06:50:46,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:50:46,857 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:50:46,858 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:50:46,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:50:46,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 06:50:46,858 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:50:46,859 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:50:46,859 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_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-11-23 06:50:47,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:50:47,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:50:47,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:50:47,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:50:47,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:50:47,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-23 06:50:50,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:50:51,039 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:50:51,040 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-23 06:50:51,048 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/data/2be28c17b/ddf1ed5dcf5b43df8cf54df03435baf2/FLAG8722abbe3 [2022-11-23 06:50:51,072 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/data/2be28c17b/ddf1ed5dcf5b43df8cf54df03435baf2 [2022-11-23 06:50:51,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:50:51,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:50:51,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:50:51,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:50:51,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:50:51,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773cde04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51, skipping insertion in model container [2022-11-23 06:50:51,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:50:51,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:50:51,369 WARN L237 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_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-23 06:50:51,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:50:51,390 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:50:51,434 WARN L237 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_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-23 06:50:51,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:50:51,457 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:50:51,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51 WrapperNode [2022-11-23 06:50:51,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:50:51,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:50:51,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:50:51,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:50:51,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,531 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-23 06:50:51,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:50:51,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:50:51,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:50:51,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:50:51,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:50:51,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:50:51,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:50:51,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:50:51,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (1/1) ... [2022-11-23 06:50:51,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:50:51,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:50:51,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:50:51,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:50:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:50:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:50:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 06:50:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 06:50:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 06:50:51,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 06:50:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 06:50:51,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 06:50:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 06:50:51,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 06:50:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 06:50:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 06:50:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 06:50:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 06:50:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:50:51,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:50:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:50:51,717 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 06:50:51,944 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:50:51,947 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:50:53,094 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:50:53,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:50:53,330 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 06:50:53,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:50:53 BoogieIcfgContainer [2022-11-23 06:50:53,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:50:53,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:50:53,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:50:53,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:50:53,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:50:51" (1/3) ... [2022-11-23 06:50:53,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b7cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:50:53, skipping insertion in model container [2022-11-23 06:50:53,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:51" (2/3) ... [2022-11-23 06:50:53,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b7cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:50:53, skipping insertion in model container [2022-11-23 06:50:53,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:50:53" (3/3) ... [2022-11-23 06:50:53,350 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-11-23 06:50:53,382 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 06:50:53,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:50:53,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-23 06:50:53,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 06:50:53,572 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 06:50:53,658 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:50:53,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:50:53,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:50:53,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:50:53,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9107bc47-1a16-4e1a-a1bb-963e0e20d8f9/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-23 06:50:53,758 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:50:53,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2022-11-23 06:50:53,787 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22a79380, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:50:53,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 06:50:54,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-23 06:50:54,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:54,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2087164056, now seen corresponding path program 1 times [2022-11-23 06:50:54,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:50:54,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918893222] [2022-11-23 06:50:54,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:54,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:50:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:54,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:50:54,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:50:54,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918893222] [2022-11-23 06:50:54,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918893222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:54,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:54,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:50:54,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593832523] [2022-11-23 06:50:54,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:54,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:50:54,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:50:54,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:50:54,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:50:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:54,898 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:54,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 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) [2022-11-23 06:50:54,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:54,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 06:50:54,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-23 06:50:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:50:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1937636867, now seen corresponding path program 1 times [2022-11-23 06:50:54,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:50:54,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76046097] [2022-11-23 06:50:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:50:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:50:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:50:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:50:55,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:50:55,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76046097] [2022-11-23 06:50:55,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76046097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:50:55,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:50:55,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 06:50:55,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733899995] [2022-11-23 06:50:55,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:50:55,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:50:55,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:50:55,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:50:55,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:50:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:55,199 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:50:55,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2022-11-23 06:50:55,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:50:55,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.