./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 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_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/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_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 13:57:11,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:57:11,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:57:11,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:57:11,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:57:11,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:57:11,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:57:11,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:57:11,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:57:11,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:57:11,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:57:11,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:57:11,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:57:11,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:57:11,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:57:11,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:57:11,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:57:11,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:57:11,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:57:11,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:57:11,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:57:11,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:57:11,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:57:11,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:57:12,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:57:12,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:57:12,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:57:12,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:57:12,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:57:12,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:57:12,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:57:12,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:57:12,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:57:12,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:57:12,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:57:12,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:57:12,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:57:12,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:57:12,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:57:12,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:57:12,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:57:12,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 13:57:12,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:57:12,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:57:12,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:57:12,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:57:12,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:57:12,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:57:12,068 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:57:12,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:57:12,069 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:57:12,069 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:57:12,070 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:57:12,070 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:57:12,070 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:57:12,070 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:57:12,071 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:57:12,071 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:57:12,071 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:57:12,071 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:57:12,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:57:12,074 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:57:12,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:57:12,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:57:12,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:57:12,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:57:12,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:57:12,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:57:12,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:57:12,076 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 13:57:12,076 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:57:12,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:57:12,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:57:12,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:57:12,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:57:12,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:57:12,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:57:12,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:57:12,079 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:57:12,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:57:12,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:57:12,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:57:12,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:57:12,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:57:12,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:57:12,080 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_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-11-23 13:57:12,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:57:12,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:57:12,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:57:12,401 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:57:12,401 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:57:12,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-23 13:57:15,421 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:57:15,679 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:57:15,688 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-23 13:57:15,697 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/data/18a03df9b/9337d5897c2848caaa505977947baf56/FLAGf392ee6e7 [2022-11-23 13:57:15,717 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/data/18a03df9b/9337d5897c2848caaa505977947baf56 [2022-11-23 13:57:15,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:57:15,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:57:15,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:57:15,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:57:15,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:57:15,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:15" (1/1) ... [2022-11-23 13:57:15,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d37fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:15, skipping insertion in model container [2022-11-23 13:57:15,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:15" (1/1) ... [2022-11-23 13:57:15,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:57:15,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:57:16,041 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_9f35b8ed-d784-4988-b0e5-6e2dec14965e/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-23 13:57:16,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:57:16,058 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:57:16,125 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_9f35b8ed-d784-4988-b0e5-6e2dec14965e/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-23 13:57:16,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:57:16,152 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:57:16,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16 WrapperNode [2022-11-23 13:57:16,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:57:16,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:57:16,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:57:16,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:57:16,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,236 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 1070 [2022-11-23 13:57:16,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:57:16,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:57:16,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:57:16,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:57:16,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:57:16,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:57:16,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:57:16,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:57:16,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (1/1) ... [2022-11-23 13:57:16,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:57:16,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:57:16,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:57:16,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f35b8ed-d784-4988-b0e5-6e2dec14965e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:57:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:57:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:57:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:57:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:57:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 13:57:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 13:57:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 13:57:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 13:57:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 13:57:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 13:57:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-23 13:57:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-23 13:57:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:57:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 13:57:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 13:57:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:57:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:57:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:57:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:57:16,457 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 13:57:16,674 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:57:16,676 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:57:18,201 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:57:19,257 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:57:19,257 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-23 13:57:19,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:19 BoogieIcfgContainer [2022-11-23 13:57:19,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:57:19,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:57:19,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:57:19,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:57:19,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:57:15" (1/3) ... [2022-11-23 13:57:19,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1a83dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:19, skipping insertion in model container [2022-11-23 13:57:19,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:16" (2/3) ... [2022-11-23 13:57:19,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1a83dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:19, skipping insertion in model container [2022-11-23 13:57:19,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:19" (3/3) ... [2022-11-23 13:57:19,273 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2022-11-23 13:57:19,283 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 13:57:19,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:57:19,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 186 error locations. [2022-11-23 13:57:19,293 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 13:57:19,546 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-23 13:57:19,604 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 13:57:19,631 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 707 transitions, 1446 flow [2022-11-23 13:57:19,635 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 707 transitions, 1446 flow [2022-11-23 13:57:19,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 707 transitions, 1446 flow [2022-11-23 13:57:19,954 INFO L130 PetriNetUnfolder]: 37/703 cut-off events. [2022-11-23 13:57:19,955 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-23 13:57:19,966 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 1532 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. [2022-11-23 13:57:19,989 INFO L119 LiptonReduction]: Number of co-enabled transitions 53172 [2022-11-23 13:58:20,888 INFO L134 LiptonReduction]: Checked pairs total: 107651 [2022-11-23 13:58:20,888 INFO L136 LiptonReduction]: Total number of compositions: 1072 [2022-11-23 13:58:20,897 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 231 places, 226 transitions, 484 flow