./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.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_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/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_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/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_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/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 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 --- 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 20:11:34,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:11:34,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:11:34,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:11:34,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:11:34,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:11:34,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:11:34,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:11:34,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:11:34,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:11:34,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:11:34,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:11:34,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:11:34,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:11:34,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:11:34,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:11:34,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:11:34,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:11:34,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:11:34,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:11:34,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:11:34,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:11:34,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:11:34,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:11:34,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:11:34,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:11:34,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:11:34,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:11:34,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:11:34,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:11:34,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:11:34,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:11:34,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:11:34,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:11:34,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:11:34,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:11:34,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:11:34,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:11:34,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:11:34,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:11:34,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:11:34,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-20 20:11:34,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:11:34,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:11:34,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:11:34,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:11:34,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:11:34,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:11:34,544 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:11:34,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:11:34,545 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:11:34,545 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:11:34,545 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:11:34,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:11:34,546 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:11:34,546 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:11:34,546 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:11:34,546 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:11:34,546 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:11:34,547 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:11:34,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:11:34,548 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:11:34,548 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:11:34,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:11:34,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:11:34,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:11:34,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:11:34,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:11:34,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:11:34,549 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 20:11:34,550 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:11:34,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:11:34,550 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:11:34,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:11:34,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:11:34,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:11:34,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:11:34,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:11:34,551 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:11:34,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:11:34,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:11:34,552 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:11:34,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:11:34,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:11:34,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:11:34,553 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_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 [2022-11-20 20:11:34,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:11:34,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:11:34,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:11:34,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:11:34,846 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:11:34,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i [2022-11-20 20:11:37,766 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:11:38,085 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:11:38,085 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i [2022-11-20 20:11:38,098 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/data/b04d882a0/836fa33f8bb843efbbed333b6011a25d/FLAG47029f873 [2022-11-20 20:11:38,112 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/data/b04d882a0/836fa33f8bb843efbbed333b6011a25d [2022-11-20 20:11:38,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:11:38,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:11:38,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:11:38,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:11:38,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:11:38,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e00fb17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38, skipping insertion in model container [2022-11-20 20:11:38,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:11:38,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:11:38,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:11:38,687 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:11:38,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:11:38,820 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:11:38,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38 WrapperNode [2022-11-20 20:11:38,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:11:38,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:11:38,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:11:38,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:11:38,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,871 INFO L138 Inliner]: procedures = 264, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2022-11-20 20:11:38,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:11:38,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:11:38,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:11:38,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:11:38,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:11:38,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:11:38,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:11:38,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:11:38,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (1/1) ... [2022-11-20 20:11:38,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:11:38,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:11:38,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:11:38,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:11:39,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:11:39,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:11:39,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:11:39,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 20:11:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:11:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 20:11:39,004 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 20:11:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:11:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:11:39,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:11:39,006 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 20:11:39,204 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:11:39,206 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:11:39,386 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:11:39,409 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:11:39,423 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:11:39,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:11:39 BoogieIcfgContainer [2022-11-20 20:11:39,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:11:39,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:11:39,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:11:39,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:11:39,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:11:38" (1/3) ... [2022-11-20 20:11:39,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa1c165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:11:39, skipping insertion in model container [2022-11-20 20:11:39,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:11:38" (2/3) ... [2022-11-20 20:11:39,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa1c165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:11:39, skipping insertion in model container [2022-11-20 20:11:39,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:11:39" (3/3) ... [2022-11-20 20:11:39,434 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_15-exit_problems.i [2022-11-20 20:11:39,444 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 20:11:39,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:11:39,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-20 20:11:39,487 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 20:11:39,554 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 20:11:39,607 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 20:11:39,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 83 transitions, 171 flow [2022-11-20 20:11:39,624 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 83 transitions, 171 flow [2022-11-20 20:11:39,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 83 transitions, 171 flow [2022-11-20 20:11:39,669 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-11-20 20:11:39,669 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 20:11:39,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-20 20:11:39,675 INFO L119 LiptonReduction]: Number of co-enabled transitions 1258 [2022-11-20 20:11:42,347 INFO L134 LiptonReduction]: Checked pairs total: 4604 [2022-11-20 20:11:42,348 INFO L136 LiptonReduction]: Total number of compositions: 67 [2022-11-20 20:11:42,361 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 24 transitions, 53 flow [2022-11-20 20:11:42,405 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 120 states, 109 states have (on average 2.073394495412844) internal successors, (226), 119 states have internal predecessors, (226), 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 20:11:42,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:11:42,439 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;@593e0073, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:11:42,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 20:11:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 109 states have (on average 2.073394495412844) internal successors, (226), 119 states have internal predecessors, (226), 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 20:11:42,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 20:11:42,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:11:42,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 20:11:42,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 20:11:42,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:11:42,458 INFO L85 PathProgramCache]: Analyzing trace with hash 8802943, now seen corresponding path program 1 times [2022-11-20 20:11:42,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:11:42,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021355500] [2022-11-20 20:11:42,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:11:42,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:11:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:11:42,659 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 20:11:42,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:11:42,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021355500] [2022-11-20 20:11:42,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021355500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:11:42,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:11:42,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 20:11:42,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105303645] [2022-11-20 20:11:42,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:11:42,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:11:42,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:11:42,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:11:42,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:11:42,693 INFO L87 Difference]: Start difference. First operand has 120 states, 109 states have (on average 2.073394495412844) internal successors, (226), 119 states have internal predecessors, (226), 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 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:11:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:11:42,729 INFO L93 Difference]: Finished difference Result 102 states and 182 transitions. [2022-11-20 20:11:42,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:11:42,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-20 20:11:42,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:11:42,749 INFO L225 Difference]: With dead ends: 102 [2022-11-20 20:11:42,749 INFO L226 Difference]: Without dead ends: 102 [2022-11-20 20:11:42,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 20:11:42,755 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:11:42,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:11:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-20 20:11:42,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-11-20 20:11:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 96 states have (on average 1.8958333333333333) internal successors, (182), 101 states have internal predecessors, (182), 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 20:11:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 182 transitions. [2022-11-20 20:11:42,817 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 182 transitions. Word has length 4 [2022-11-20 20:11:42,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:11:42,819 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 182 transitions. [2022-11-20 20:11:42,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:11:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 182 transitions. [2022-11-20 20:11:42,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 20:11:42,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:11:42,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 20:11:42,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:11:42,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 20:11:42,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:11:42,826 INFO L85 PathProgramCache]: Analyzing trace with hash 8803932, now seen corresponding path program 1 times [2022-11-20 20:11:42,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:11:42,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467829761] [2022-11-20 20:11:42,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:11:42,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:11:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:11:42,915 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 20:11:42,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:11:42,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467829761] [2022-11-20 20:11:42,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467829761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:11:42,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:11:42,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:11:42,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897463461] [2022-11-20 20:11:42,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:11:42,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:11:42,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:11:42,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:11:42,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:11:42,919 INFO L87 Difference]: Start difference. First operand 102 states and 182 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:11:42,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:11:42,994 INFO L93 Difference]: Finished difference Result 113 states and 196 transitions. [2022-11-20 20:11:42,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:11:42,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-20 20:11:42,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:11:42,997 INFO L225 Difference]: With dead ends: 113 [2022-11-20 20:11:42,997 INFO L226 Difference]: Without dead ends: 113 [2022-11-20 20:11:42,997 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 20:11:42,999 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:11:42,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:11:43,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-20 20:11:43,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95. [2022-11-20 20:11:43,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 90 states have (on average 1.8444444444444446) internal successors, (166), 94 states have internal predecessors, (166), 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 20:11:43,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 166 transitions. [2022-11-20 20:11:43,009 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 166 transitions. Word has length 4 [2022-11-20 20:11:43,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:11:43,009 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 166 transitions. [2022-11-20 20:11:43,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:11:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 166 transitions. [2022-11-20 20:11:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 20:11:43,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:11:43,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:11:43,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:11:43,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 20:11:43,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:11:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash 249547419, now seen corresponding path program 1 times [2022-11-20 20:11:43,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:11:43,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87616067] [2022-11-20 20:11:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:11:43,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:11:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:11:43,067 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 20:11:43,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:11:43,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87616067] [2022-11-20 20:11:43,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87616067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:11:43,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:11:43,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:11:43,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496454032] [2022-11-20 20:11:43,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:11:43,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:11:43,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:11:43,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:11:43,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:11:43,071 INFO L87 Difference]: Start difference. First operand 95 states and 166 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 20:11:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:11:43,105 INFO L93 Difference]: Finished difference Result 101 states and 176 transitions. [2022-11-20 20:11:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:11:43,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-20 20:11:43,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:11:43,106 INFO L225 Difference]: With dead ends: 101 [2022-11-20 20:11:43,107 INFO L226 Difference]: Without dead ends: 101 [2022-11-20 20:11:43,107 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 20:11:43,108 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:11:43,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:11:43,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-20 20:11:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 95. [2022-11-20 20:11:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.8131868131868132) internal successors, (165), 94 states have internal predecessors, (165), 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 20:11:43,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 165 transitions. [2022-11-20 20:11:43,116 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 165 transitions. Word has length 8 [2022-11-20 20:11:43,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:11:43,117 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 165 transitions. [2022-11-20 20:11:43,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 20:11:43,117 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 165 transitions. [2022-11-20 20:11:43,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 20:11:43,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:11:43,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:11:43,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:11:43,119 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 20:11:43,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:11:43,120 INFO L85 PathProgramCache]: Analyzing trace with hash -931282311, now seen corresponding path program 1 times [2022-11-20 20:11:43,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:11:43,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131439935] [2022-11-20 20:11:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:11:43,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:11:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:11:43,195 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 20:11:43,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:11:43,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131439935] [2022-11-20 20:11:43,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131439935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:11:43,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:11:43,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:11:43,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421589765] [2022-11-20 20:11:43,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:11:43,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:11:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:11:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:11:43,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:11:43,198 INFO L87 Difference]: Start difference. First operand 95 states and 165 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 20:11:43,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:11:43,240 INFO L93 Difference]: Finished difference Result 95 states and 159 transitions. [2022-11-20 20:11:43,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:11:43,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-20 20:11:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:11:43,242 INFO L225 Difference]: With dead ends: 95 [2022-11-20 20:11:43,242 INFO L226 Difference]: Without dead ends: 79 [2022-11-20 20:11:43,242 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 20:11:43,245 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:11:43,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:11:43,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-20 20:11:43,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-20 20:11:43,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.6533333333333333) internal successors, (124), 78 states have internal predecessors, (124), 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 20:11:43,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 124 transitions. [2022-11-20 20:11:43,252 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 124 transitions. Word has length 10 [2022-11-20 20:11:43,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:11:43,253 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 124 transitions. [2022-11-20 20:11:43,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 20:11:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 124 transitions. [2022-11-20 20:11:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 20:11:43,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:11:43,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:11:43,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:11:43,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 20:11:43,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:11:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1463466864, now seen corresponding path program 1 times [2022-11-20 20:11:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:11:43,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161162903] [2022-11-20 20:11:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:11:43,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:11:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 20:11:43,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 20:11:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 20:11:43,340 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 20:11:43,341 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 20:11:43,342 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-20 20:11:43,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-20 20:11:43,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-20 20:11:43,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-20 20:11:43,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2022-11-20 20:11:43,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-20 20:11:43,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-20 20:11:43,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-20 20:11:43,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:11:43,348 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 20:11:43,354 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 20:11:43,354 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:11:43,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:11:43 BasicIcfg [2022-11-20 20:11:43,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:11:43,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:11:43,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:11:43,380 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:11:43,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:11:39" (3/4) ... [2022-11-20 20:11:43,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 20:11:43,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:11:43,385 INFO L158 Benchmark]: Toolchain (without parser) took 5268.36ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 137.7MB in the beginning and 101.7MB in the end (delta: 36.0MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2022-11-20 20:11:43,385 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory was 100.2MB in the beginning and 100.1MB in the end (delta: 87.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:11:43,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 703.78ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 113.2MB in the end (delta: 24.3MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-11-20 20:11:43,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.65ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:11:43,387 INFO L158 Benchmark]: Boogie Preprocessor took 45.32ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:11:43,387 INFO L158 Benchmark]: RCFGBuilder took 506.79ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 137.0MB in the end (delta: -27.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-20 20:11:43,388 INFO L158 Benchmark]: TraceAbstraction took 3952.28ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 136.0MB in the beginning and 101.7MB in the end (delta: 34.3MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2022-11-20 20:11:43,388 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 201.3MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:11:43,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory was 100.2MB in the beginning and 100.1MB in the end (delta: 87.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 703.78ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 113.2MB in the end (delta: 24.3MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.65ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.32ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.79ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 137.0MB in the end (delta: -27.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3952.28ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 136.0MB in the beginning and 101.7MB in the end (delta: 34.3MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 201.3MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 85 PlacesBefore, 27 PlacesAfterwards, 83 TransitionsBefore, 24 TransitionsAfterwards, 1258 CoEnabledTransitionPairs, 9 FixpointIterations, 26 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 4604 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2090, independent: 1790, independent conditional: 0, independent unconditional: 1790, dependent: 300, dependent conditional: 0, dependent unconditional: 300, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 910, independent: 860, independent conditional: 0, independent unconditional: 860, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 910, independent: 785, independent conditional: 0, independent unconditional: 785, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 125, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 235, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2090, independent: 930, independent conditional: 0, independent unconditional: 930, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 910, unknown conditional: 0, unknown unconditional: 910] , Statistics on independence cache: Total cache size (in pairs): 136, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 929]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int glob; [L919] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t bad = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L934] 0 pthread_t id; [L935] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, bad={2:0}, glob=0, id={3:0}, mutex={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L936] COND TRUE 0 1 [L937] CALL 0 f(&bad) [L929] 1 glob++ VAL [arg={0:0}, arg={0:0}, bad={2:0}, glob=1, glob++=0, glob++=25, mutex={1:0}] [L923] 0 glob++ VAL [arg={0:0}, arg={0:0}, bad={2:0}, glob=1, glob++=0, glob++=25, m={2:0}, m={2:0}, mutex={1:0}] [L929] 1 glob++ VAL [arg={0:0}, arg={0:0}, bad={2:0}, glob=1, glob++=0, glob++=25, mutex={1:0}] Now there is a data race on ~glob~0 between C: glob++ [923] and C: glob++ [929] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 929]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 40 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 20:11:43,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc86fe06-e1b6-4873-b0d5-2ff9b65fe5d1/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE