./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- 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-5e519f3 [2022-11-03 03:28:26,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:28:26,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:28:26,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:28:26,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:28:26,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:28:26,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:28:26,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:28:26,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:28:26,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:28:26,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:28:26,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:28:26,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:28:26,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:28:26,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:28:26,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:28:26,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:28:26,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:28:26,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:28:26,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:28:26,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:28:26,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:28:26,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:28:26,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:28:26,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:28:26,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:28:26,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:28:26,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:28:26,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:28:26,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:28:26,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:28:26,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:28:26,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:28:26,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:28:26,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:28:26,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:28:26,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:28:26,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:28:26,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:28:26,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:28:26,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:28:26,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 03:28:27,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:28:27,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:28:27,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:28:27,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:28:27,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:28:27,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:28:27,008 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:28:27,008 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:28:27,008 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:28:27,008 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:28:27,009 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:28:27,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:28:27,010 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:28:27,010 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:28:27,010 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:28:27,011 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:28:27,011 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:28:27,011 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:28:27,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:28:27,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:28:27,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:28:27,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:28:27,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:28:27,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:28:27,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:28:27,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:28:27,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:28:27,013 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 03:28:27,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:28:27,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:28:27,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:28:27,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:28:27,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:28:27,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:28:27,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:27,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:28:27,027 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:28:27,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:28:27,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:28:27,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:28:27,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:28:27,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:28:27,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:28:27,028 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_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-11-03 03:28:27,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:28:27,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:28:27,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:28:27,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:28:27,424 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:28:27,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-03 03:28:27,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/data/e06e72770/b606b3b614b84a028f46215feb677389/FLAG6df9d4593 [2022-11-03 03:28:28,126 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:28:28,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-03 03:28:28,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/data/e06e72770/b606b3b614b84a028f46215feb677389/FLAG6df9d4593 [2022-11-03 03:28:28,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/data/e06e72770/b606b3b614b84a028f46215feb677389 [2022-11-03 03:28:28,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:28:28,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:28:28,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:28,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:28:28,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:28:28,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:28" (1/1) ... [2022-11-03 03:28:28,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b313873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:28, skipping insertion in model container [2022-11-03 03:28:28,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:28" (1/1) ... [2022-11-03 03:28:28,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:28:28,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:28:28,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-03 03:28:28,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:28,936 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:28:28,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-03 03:28:29,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:29,018 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:28:29,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29 WrapperNode [2022-11-03 03:28:29,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:29,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:29,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:28:29,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:28:29,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,116 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 1070 [2022-11-03 03:28:29,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:29,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:28:29,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:28:29,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:28:29,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:28:29,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:28:29,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:28:29,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:28:29,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (1/1) ... [2022-11-03 03:28:29,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:29,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:29,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:28:29,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c99546-f69a-4f64-a8ec-824239a325bf/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:28:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:28:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:28:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:28:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:28:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 03:28:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 03:28:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 03:28:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 03:28:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 03:28:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 03:28:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-03 03:28:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-03 03:28:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:28:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 03:28:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 03:28:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:28:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:28:29,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:28:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:28:29,350 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:28:29,557 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:28:29,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:28:31,380 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:28:32,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:28:32,474 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-03 03:28:32,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:32 BoogieIcfgContainer [2022-11-03 03:28:32,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:28:32,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:28:32,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:28:32,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:28:32,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:28:28" (1/3) ... [2022-11-03 03:28:32,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eafd96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:32, skipping insertion in model container [2022-11-03 03:28:32,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:29" (2/3) ... [2022-11-03 03:28:32,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eafd96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:32, skipping insertion in model container [2022-11-03 03:28:32,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:32" (3/3) ... [2022-11-03 03:28:32,497 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2022-11-03 03:28:32,508 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:28:32,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:28:32,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 186 error locations. [2022-11-03 03:28:32,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:28:32,843 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-03 03:28:32,907 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:28:32,922 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 707 transitions, 1446 flow [2022-11-03 03:28:32,927 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 707 transitions, 1446 flow [2022-11-03 03:28:32,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 707 transitions, 1446 flow [2022-11-03 03:28:33,270 INFO L130 PetriNetUnfolder]: 37/703 cut-off events. [2022-11-03 03:28:33,270 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-03 03:28:33,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 703 events. 37/703 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1544 event pairs, 0 based on Foata normal form. 0/480 useless extension candidates. Maximal degree in co-relation 604. Up to 8 conditions per place. [2022-11-03 03:28:33,309 INFO L118 LiptonReduction]: Number of co-enabled transitions 53172 [2022-11-03 03:29:25,368 WARN L234 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 249 DAG size of output: 245 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:29:39,551 INFO L133 LiptonReduction]: Checked pairs total: 114972 [2022-11-03 03:29:39,551 INFO L135 LiptonReduction]: Total number of compositions: 1159 [2022-11-03 03:29:39,558 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 231 places, 226 transitions, 484 flow