./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9 --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 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 --- 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-6b4ec56 [2022-11-20 18:54:09,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:54:09,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:54:09,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:54:09,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:54:09,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:54:09,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:54:09,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:54:09,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:54:09,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:54:09,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:54:09,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:54:09,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:54:09,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:54:09,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:54:09,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:54:09,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:54:09,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:54:09,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:54:09,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:54:09,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:54:09,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:54:09,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:54:09,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:54:09,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:54:09,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:54:09,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:54:09,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:54:09,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:54:09,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:54:09,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:54:09,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:54:09,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:54:09,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:54:09,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:54:09,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:54:09,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:54:09,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:54:09,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:54:09,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:54:09,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:54:09,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-20 18:54:10,016 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:54:10,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:54:10,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 18:54:10,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 18:54:10,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:54:10,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 18:54:10,021 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 18:54:10,021 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 18:54:10,021 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 18:54:10,022 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 18:54:10,023 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 18:54:10,023 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 18:54:10,024 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 18:54:10,024 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 18:54:10,024 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 18:54:10,025 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 18:54:10,025 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 18:54:10,025 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 18:54:10,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:54:10,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:54:10,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:54:10,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:54:10,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:54:10,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:54:10,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:54:10,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:54:10,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:54:10,030 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 18:54:10,030 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:54:10,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:54:10,031 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:54:10,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:54:10,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:54:10,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 18:54:10,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 18:54:10,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:54:10,033 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 18:54:10,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:54:10,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:54:10,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 18:54:10,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:54:10,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:54:10,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 18:54:10,035 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_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 [2022-11-20 18:54:10,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:54:10,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:54:10,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:54:10,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:54:10,427 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:54:10,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2022-11-20 18:54:14,173 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:54:14,585 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:54:14,586 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2022-11-20 18:54:14,610 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/data/555f2c583/e20dce3ac73f41298306a6a449180412/FLAGa928803e1 [2022-11-20 18:54:14,635 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/data/555f2c583/e20dce3ac73f41298306a6a449180412 [2022-11-20 18:54:14,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:54:14,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:54:14,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:54:14,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:54:14,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:54:14,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:54:14" (1/1) ... [2022-11-20 18:54:14,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de2f1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:14, skipping insertion in model container [2022-11-20 18:54:14,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:54:14" (1/1) ... [2022-11-20 18:54:14,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:54:14,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:54:15,077 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_ef089f71-f9bc-4945-9052-525a040d075c/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i[30176,30189] [2022-11-20 18:54:15,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:54:15,126 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:54:15,207 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_ef089f71-f9bc-4945-9052-525a040d075c/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i[30176,30189] [2022-11-20 18:54:15,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:54:15,288 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:54:15,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15 WrapperNode [2022-11-20 18:54:15,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:54:15,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:54:15,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:54:15,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:54:15,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,394 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2022-11-20 18:54:15,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:54:15,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:54:15,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:54:15,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:54:15,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,456 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:54:15,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:54:15,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:54:15,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:54:15,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (1/1) ... [2022-11-20 18:54:15,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 18:54:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 18:54:15,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 18:54:15,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef089f71-f9bc-4945-9052-525a040d075c/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 18:54:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:54:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:54:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 18:54:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:54:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:54:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 18:54:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 18:54:15,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:54:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:54:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:54:15,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:54:15,567 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 18:54:15,838 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:54:15,841 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:54:16,320 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:54:16,330 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:54:16,337 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-20 18:54:16,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:54:16 BoogieIcfgContainer [2022-11-20 18:54:16,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:54:16,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 18:54:16,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 18:54:16,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 18:54:16,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:54:14" (1/3) ... [2022-11-20 18:54:16,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51de0b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:54:16, skipping insertion in model container [2022-11-20 18:54:16,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:54:15" (2/3) ... [2022-11-20 18:54:16,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51de0b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:54:16, skipping insertion in model container [2022-11-20 18:54:16,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:54:16" (3/3) ... [2022-11-20 18:54:16,361 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_37-indirect_racing.i [2022-11-20 18:54:16,372 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 18:54:16,387 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 18:54:16,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-20 18:54:16,388 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 18:54:16,550 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 18:54:16,612 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 18:54:16,641 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 175 transitions, 358 flow [2022-11-20 18:54:16,648 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 175 transitions, 358 flow [2022-11-20 18:54:16,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 175 transitions, 358 flow [2022-11-20 18:54:16,833 INFO L130 PetriNetUnfolder]: 17/224 cut-off events. [2022-11-20 18:54:16,834 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 18:54:16,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 224 events. 17/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 658 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 120. Up to 6 conditions per place. [2022-11-20 18:54:16,854 INFO L119 LiptonReduction]: Number of co-enabled transitions 7260 [2022-11-20 18:54:24,434 INFO L134 LiptonReduction]: Checked pairs total: 47593 [2022-11-20 18:54:24,435 INFO L136 LiptonReduction]: Total number of compositions: 166 [2022-11-20 18:54:24,449 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 72 transitions, 152 flow [2022-11-20 18:54:24,548 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 853 states, 805 states have (on average 2.279503105590062) internal successors, (1835), 852 states have internal predecessors, (1835), 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) [2022-11-20 18:54:24,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 18:54:24,577 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=FINITE_AUTOMATA, 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;@65375536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 18:54:24,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-20 18:54:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 853 states, 805 states have (on average 2.279503105590062) internal successors, (1835), 852 states have internal predecessors, (1835), 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) [2022-11-20 18:54:24,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 18:54:24,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:54:24,590 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 18:54:24,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-20 18:54:24,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:54:24,598 INFO L85 PathProgramCache]: Analyzing trace with hash 645, now seen corresponding path program 1 times [2022-11-20 18:54:24,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:54:24,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584459555] [2022-11-20 18:54:24,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:54:24,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:54:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:54:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:54:24,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:54:24,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584459555] [2022-11-20 18:54:24,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584459555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:54:24,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:54:24,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 18:54:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429828267] [2022-11-20 18:54:24,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:54:24,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 18:54:24,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:54:24,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 18:54:24,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 18:54:24,792 INFO L87 Difference]: Start difference. First operand has 853 states, 805 states have (on average 2.279503105590062) internal successors, (1835), 852 states have internal predecessors, (1835), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 18:54:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:54:24,948 INFO L93 Difference]: Finished difference Result 769 states and 1462 transitions. [2022-11-20 18:54:24,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 18:54:24,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-20 18:54:24,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:54:24,979 INFO L225 Difference]: With dead ends: 769 [2022-11-20 18:54:24,979 INFO L226 Difference]: Without dead ends: 765 [2022-11-20 18:54:24,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 18:54:24,986 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:54:24,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:54:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-11-20 18:54:25,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2022-11-20 18:54:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 740 states have (on average 1.9662162162162162) internal successors, (1455), 764 states have internal predecessors, (1455), 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) [2022-11-20 18:54:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1455 transitions. [2022-11-20 18:54:25,162 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1455 transitions. Word has length 1 [2022-11-20 18:54:25,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:54:25,163 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1455 transitions. [2022-11-20 18:54:25,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 18:54:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1455 transitions. [2022-11-20 18:54:25,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:54:25,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:54:25,167 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-20 18:54:25,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 18:54:25,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-20 18:54:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:54:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1901657910, now seen corresponding path program 1 times [2022-11-20 18:54:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:54:25,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867267821] [2022-11-20 18:54:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:54:25,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:54:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:54:25,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:54:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:54:25,375 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 18:54:25,377 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 18:54:25,379 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2022-11-20 18:54:25,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2022-11-20 18:54:25,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2022-11-20 18:54:25,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2022-11-20 18:54:25,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2022-11-20 18:54:25,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2022-11-20 18:54:25,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2022-11-20 18:54:25,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2022-11-20 18:54:25,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2022-11-20 18:54:25,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2022-11-20 18:54:25,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2022-11-20 18:54:25,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2022-11-20 18:54:25,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2022-11-20 18:54:25,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2022-11-20 18:54:25,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2022-11-20 18:54:25,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2022-11-20 18:54:25,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2022-11-20 18:54:25,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2022-11-20 18:54:25,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2022-11-20 18:54:25,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 18:54:25,408 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 18:54:25,410 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 18:54:25,411 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 18:54:25,481 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 18:54:25,493 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 18:54:25,494 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 243 transitions, 504 flow [2022-11-20 18:54:25,495 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 243 transitions, 504 flow [2022-11-20 18:54:25,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 243 transitions, 504 flow [2022-11-20 18:54:25,667 INFO L130 PetriNetUnfolder]: 31/372 cut-off events. [2022-11-20 18:54:25,668 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 18:54:25,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 372 events. 31/372 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1431 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 226. Up to 9 conditions per place. [2022-11-20 18:54:25,700 INFO L119 LiptonReduction]: Number of co-enabled transitions 24684 [2022-11-20 18:54:34,822 INFO L134 LiptonReduction]: Checked pairs total: 215234 [2022-11-20 18:54:34,822 INFO L136 LiptonReduction]: Total number of compositions: 215 [2022-11-20 18:54:34,824 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 110 places, 121 transitions, 260 flow [2022-11-20 18:54:36,376 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 36050 states, 35708 states have (on average 3.2931555953847877) internal successors, (117592), 36049 states have internal predecessors, (117592), 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) [2022-11-20 18:54:36,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 18:54:36,379 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=FINITE_AUTOMATA, 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;@65375536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 18:54:36,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-20 18:54:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 36050 states, 35708 states have (on average 3.2931555953847877) internal successors, (117592), 36049 states have internal predecessors, (117592), 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) [2022-11-20 18:54:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 18:54:36,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:54:36,456 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 18:54:36,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 18:54:36,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:54:36,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1155, now seen corresponding path program 1 times [2022-11-20 18:54:36,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:54:36,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200105998] [2022-11-20 18:54:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:54:36,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:54:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:54:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:54:36,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:54:36,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200105998] [2022-11-20 18:54:36,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200105998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:54:36,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:54:36,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 18:54:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943457939] [2022-11-20 18:54:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:54:36,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 18:54:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:54:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 18:54:36,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 18:54:36,669 INFO L87 Difference]: Start difference. First operand has 36050 states, 35708 states have (on average 3.2931555953847877) internal successors, (117592), 36049 states have internal predecessors, (117592), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 18:54:37,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:54:37,451 INFO L93 Difference]: Finished difference Result 31090 states and 89017 transitions. [2022-11-20 18:54:37,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 18:54:37,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-20 18:54:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:54:37,739 INFO L225 Difference]: With dead ends: 31090 [2022-11-20 18:54:37,739 INFO L226 Difference]: Without dead ends: 31074 [2022-11-20 18:54:37,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 18:54:37,751 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:54:37,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:54:38,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31074 states. [2022-11-20 18:54:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31074 to 31074. [2022-11-20 18:54:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31074 states, 30926 states have (on average 2.877093707559982) internal successors, (88977), 31073 states have internal predecessors, (88977), 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) [2022-11-20 18:54:39,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31074 states to 31074 states and 88977 transitions. [2022-11-20 18:54:39,827 INFO L78 Accepts]: Start accepts. Automaton has 31074 states and 88977 transitions. Word has length 1 [2022-11-20 18:54:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:54:39,828 INFO L495 AbstractCegarLoop]: Abstraction has 31074 states and 88977 transitions. [2022-11-20 18:54:39,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 18:54:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 31074 states and 88977 transitions. [2022-11-20 18:54:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:54:39,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:54:39,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 18:54:39,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 18:54:39,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 18:54:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:54:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash -978330933, now seen corresponding path program 1 times [2022-11-20 18:54:39,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:54:39,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204311065] [2022-11-20 18:54:39,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:54:39,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:54:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:54:40,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:54:40,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:54:40,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204311065] [2022-11-20 18:54:40,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204311065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:54:40,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:54:40,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 18:54:40,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896902853] [2022-11-20 18:54:40,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:54:40,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 18:54:40,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:54:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 18:54:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 18:54:40,159 INFO L87 Difference]: Start difference. First operand 31074 states and 88977 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-20 18:54:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:54:40,713 INFO L93 Difference]: Finished difference Result 31065 states and 88967 transitions. [2022-11-20 18:54:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 18:54:40,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2022-11-20 18:54:40,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:54:40,911 INFO L225 Difference]: With dead ends: 31065 [2022-11-20 18:54:40,911 INFO L226 Difference]: Without dead ends: 31065 [2022-11-20 18:54:40,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 18:54:40,912 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 38 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:54:40,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 112 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:54:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31065 states. [2022-11-20 18:54:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31065 to 31065. [2022-11-20 18:54:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31065 states, 30918 states have (on average 2.877514716346465) internal successors, (88967), 31064 states have internal predecessors, (88967), 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) [2022-11-20 18:54:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31065 states to 31065 states and 88967 transitions. [2022-11-20 18:54:42,409 INFO L78 Accepts]: Start accepts. Automaton has 31065 states and 88967 transitions. Word has length 9 [2022-11-20 18:54:42,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:54:42,409 INFO L495 AbstractCegarLoop]: Abstraction has 31065 states and 88967 transitions. [2022-11-20 18:54:42,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-20 18:54:42,413 INFO L276 IsEmpty]: Start isEmpty. Operand 31065 states and 88967 transitions. [2022-11-20 18:54:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 18:54:42,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:54:42,416 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 18:54:42,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 18:54:42,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 18:54:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:54:42,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2045751288, now seen corresponding path program 1 times [2022-11-20 18:54:42,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:54:42,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933988046] [2022-11-20 18:54:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:54:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:54:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:54:42,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:54:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:54:42,503 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 18:54:42,510 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 18:54:42,511 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-11-20 18:54:42,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-11-20 18:54:42,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-11-20 18:54:42,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-11-20 18:54:42,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-11-20 18:54:42,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-11-20 18:54:42,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-11-20 18:54:42,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-11-20 18:54:42,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-11-20 18:54:42,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-11-20 18:54:42,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-11-20 18:54:42,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-11-20 18:54:42,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-11-20 18:54:42,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-11-20 18:54:42,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-11-20 18:54:42,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-11-20 18:54:42,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-11-20 18:54:42,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-11-20 18:54:42,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-11-20 18:54:42,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-11-20 18:54:42,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-11-20 18:54:42,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-11-20 18:54:42,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-11-20 18:54:42,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-11-20 18:54:42,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-11-20 18:54:42,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 18:54:42,519 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 18:54:42,520 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 18:54:42,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 18:54:42,732 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 18:54:42,736 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 18:54:42,736 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 311 transitions, 652 flow [2022-11-20 18:54:42,737 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 311 transitions, 652 flow [2022-11-20 18:54:42,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 311 transitions, 652 flow [2022-11-20 18:54:42,882 INFO L130 PetriNetUnfolder]: 50/565 cut-off events. [2022-11-20 18:54:42,882 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-20 18:54:42,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 565 events. 50/565 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2479 event pairs, 1 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 380. Up to 16 conditions per place. [2022-11-20 18:54:42,934 INFO L119 LiptonReduction]: Number of co-enabled transitions 50688 [2022-11-20 18:54:54,505 INFO L134 LiptonReduction]: Checked pairs total: 501013 [2022-11-20 18:54:54,506 INFO L136 LiptonReduction]: Total number of compositions: 279 [2022-11-20 18:54:54,507 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 150 places, 166 transitions, 362 flow