./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba --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 c517f79a73060bc678a954192f1199959aeb325b084aab08d3d2f350bb51cb8f --- 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-b5237d8 [2022-11-22 01:45:59,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:45:59,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:45:59,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:45:59,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:45:59,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:45:59,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:45:59,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:45:59,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:45:59,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:45:59,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:45:59,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:45:59,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:45:59,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:45:59,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:45:59,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:45:59,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:45:59,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:45:59,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:45:59,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:45:59,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:45:59,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:45:59,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:45:59,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:45:59,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:45:59,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:45:59,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:45:59,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:45:59,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:45:59,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:45:59,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:45:59,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:45:59,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:45:59,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:45:59,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:45:59,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:45:59,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:45:59,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:45:59,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:45:59,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:45:59,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:45:59,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 01:45:59,231 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:45:59,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:45:59,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:45:59,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:45:59,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:45:59,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:45:59,234 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:45:59,234 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:45:59,234 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:45:59,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:45:59,235 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:45:59,235 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:45:59,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:45:59,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:45:59,236 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:45:59,236 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:45:59,237 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:45:59,237 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:45:59,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:45:59,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:45:59,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:45:59,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:45:59,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:45:59,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:45:59,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:45:59,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:45:59,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:45:59,241 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 01:45:59,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:45:59,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:45:59,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:45:59,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:45:59,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:45:59,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:45:59,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:45:59,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:45:59,243 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:45:59,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:45:59,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:45:59,244 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:45:59,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:45:59,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:45:59,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:45:59,245 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_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c517f79a73060bc678a954192f1199959aeb325b084aab08d3d2f350bb51cb8f [2022-11-22 01:45:59,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:45:59,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:45:59,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:45:59,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:45:59,565 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:45:59,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-11-22 01:46:02,660 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:46:02,927 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:46:02,927 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/sv-benchmarks/c/goblint-regression/04-mutex_25-single_acc.i [2022-11-22 01:46:02,941 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/data/9e8bcb42b/dffcad3eda1b45d8b62b38b5febca367/FLAG2ac8a4686 [2022-11-22 01:46:02,966 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/data/9e8bcb42b/dffcad3eda1b45d8b62b38b5febca367 [2022-11-22 01:46:02,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:46:02,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:46:02,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:46:02,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:46:02,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:46:02,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:46:02" (1/1) ... [2022-11-22 01:46:02,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2cf43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:02, skipping insertion in model container [2022-11-22 01:46:02,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:46:02" (1/1) ... [2022-11-22 01:46:02,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:46:03,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:46:03,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:46:03,354 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:46:03,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:46:03,457 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:46:03,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03 WrapperNode [2022-11-22 01:46:03,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:46:03,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:46:03,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:46:03,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:46:03,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,515 INFO L138 Inliner]: procedures = 159, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-22 01:46:03,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:46:03,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:46:03,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:46:03,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:46:03,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:46:03,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:46:03,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:46:03,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:46:03,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (1/1) ... [2022-11-22 01:46:03,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:46:03,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:46:03,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:46:03,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:46:03,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:46:03,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:46:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 01:46:03,663 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 01:46:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:46:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:46:03,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:46:03,665 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:46:03,856 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:46:03,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:46:03,999 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:46:04,005 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:46:04,006 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:46:04,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:04 BoogieIcfgContainer [2022-11-22 01:46:04,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:46:04,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:46:04,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:46:04,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:46:04,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:46:02" (1/3) ... [2022-11-22 01:46:04,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9dd772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:04, skipping insertion in model container [2022-11-22 01:46:04,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:03" (2/3) ... [2022-11-22 01:46:04,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9dd772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:04, skipping insertion in model container [2022-11-22 01:46:04,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:04" (3/3) ... [2022-11-22 01:46:04,018 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_25-single_acc.i [2022-11-22 01:46:04,027 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 01:46:04,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:46:04,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 01:46:04,039 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:46:04,088 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 01:46:04,122 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:46:04,136 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 61 transitions, 132 flow [2022-11-22 01:46:04,139 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 61 transitions, 132 flow [2022-11-22 01:46:04,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 61 transitions, 132 flow [2022-11-22 01:46:04,177 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-11-22 01:46:04,178 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 01:46:04,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-22 01:46:04,199 INFO L119 LiptonReduction]: Number of co-enabled transitions 1120 [2022-11-22 01:46:05,734 INFO L134 LiptonReduction]: Checked pairs total: 2899 [2022-11-22 01:46:05,735 INFO L136 LiptonReduction]: Total number of compositions: 38 [2022-11-22 01:46:05,743 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 56 flow [2022-11-22 01:46:05,771 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 180 states, 172 states have (on average 2.3255813953488373) internal successors, (400), 179 states have internal predecessors, (400), 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) [2022-11-22 01:46:05,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:46:05,796 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;@558b7d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:46:05,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 01:46:05,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 172 states have (on average 2.3255813953488373) internal successors, (400), 179 states have internal predecessors, (400), 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) [2022-11-22 01:46:05,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:46:05,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:05,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:46:05,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-22 01:46:05,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:05,810 INFO L85 PathProgramCache]: Analyzing trace with hash 5842120, now seen corresponding path program 1 times [2022-11-22 01:46:05,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:05,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434072493] [2022-11-22 01:46:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:05,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:06,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:06,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:06,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434072493] [2022-11-22 01:46:06,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434072493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:06,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:06,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:46:06,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173065681] [2022-11-22 01:46:06,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:06,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:06,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:06,099 INFO L87 Difference]: Start difference. First operand has 180 states, 172 states have (on average 2.3255813953488373) internal successors, (400), 179 states have internal predecessors, (400), 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 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) [2022-11-22 01:46:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:06,176 INFO L93 Difference]: Finished difference Result 204 states and 445 transitions. [2022-11-22 01:46:06,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:06,179 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 [2022-11-22 01:46:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:06,197 INFO L225 Difference]: With dead ends: 204 [2022-11-22 01:46:06,197 INFO L226 Difference]: Without dead ends: 204 [2022-11-22 01:46:06,198 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 [2022-11-22 01:46:06,203 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:06,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:46:06,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-22 01:46:06,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 168. [2022-11-22 01:46:06,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 161 states have (on average 2.279503105590062) internal successors, (367), 167 states have internal predecessors, (367), 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) [2022-11-22 01:46:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 367 transitions. [2022-11-22 01:46:06,310 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 367 transitions. Word has length 4 [2022-11-22 01:46:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:06,311 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 367 transitions. [2022-11-22 01:46:06,311 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) [2022-11-22 01:46:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 367 transitions. [2022-11-22 01:46:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:46:06,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:06,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:06,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:46:06,313 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-22 01:46:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:06,314 INFO L85 PathProgramCache]: Analyzing trace with hash 845916549, now seen corresponding path program 1 times [2022-11-22 01:46:06,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:06,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595643846] [2022-11-22 01:46:06,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:06,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:06,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:06,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595643846] [2022-11-22 01:46:06,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595643846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:06,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:06,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:46:06,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082661037] [2022-11-22 01:46:06,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:06,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:06,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:06,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:06,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:06,390 INFO L87 Difference]: Start difference. First operand 168 states and 367 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) [2022-11-22 01:46:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:06,449 INFO L93 Difference]: Finished difference Result 172 states and 374 transitions. [2022-11-22 01:46:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:06,450 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 [2022-11-22 01:46:06,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:06,452 INFO L225 Difference]: With dead ends: 172 [2022-11-22 01:46:06,453 INFO L226 Difference]: Without dead ends: 160 [2022-11-22 01:46:06,453 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 [2022-11-22 01:46:06,455 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:06,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:46:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-22 01:46:06,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-22 01:46:06,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 154 states have (on average 2.2337662337662336) internal successors, (344), 159 states have internal predecessors, (344), 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) [2022-11-22 01:46:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 344 transitions. [2022-11-22 01:46:06,469 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 344 transitions. Word has length 8 [2022-11-22 01:46:06,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:06,469 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 344 transitions. [2022-11-22 01:46:06,469 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) [2022-11-22 01:46:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 344 transitions. [2022-11-22 01:46:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:46:06,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:06,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:06,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:46:06,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-22 01:46:06,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1236412945, now seen corresponding path program 1 times [2022-11-22 01:46:06,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:06,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265788055] [2022-11-22 01:46:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:06,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:06,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:06,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265788055] [2022-11-22 01:46:06,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265788055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:06,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:06,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:46:06,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146172438] [2022-11-22 01:46:06,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:06,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:06,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:06,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:06,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:46:06,570 INFO L87 Difference]: Start difference. First operand 160 states and 344 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) [2022-11-22 01:46:06,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:06,622 INFO L93 Difference]: Finished difference Result 158 states and 329 transitions. [2022-11-22 01:46:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:06,624 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 [2022-11-22 01:46:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:06,625 INFO L225 Difference]: With dead ends: 158 [2022-11-22 01:46:06,628 INFO L226 Difference]: Without dead ends: 144 [2022-11-22 01:46:06,628 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 [2022-11-22 01:46:06,629 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:06,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:46:06,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-22 01:46:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-11-22 01:46:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 140 states have (on average 2.0642857142857145) internal successors, (289), 143 states have internal predecessors, (289), 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) [2022-11-22 01:46:06,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 289 transitions. [2022-11-22 01:46:06,645 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 289 transitions. Word has length 10 [2022-11-22 01:46:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:06,646 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 289 transitions. [2022-11-22 01:46:06,646 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) [2022-11-22 01:46:06,646 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 289 transitions. [2022-11-22 01:46:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:46:06,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:06,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:06,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:46:06,651 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-22 01:46:06,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:06,652 INFO L85 PathProgramCache]: Analyzing trace with hash 325905306, now seen corresponding path program 1 times [2022-11-22 01:46:06,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:06,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030206374] [2022-11-22 01:46:06,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:06,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:46:06,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:46:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:46:06,705 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:46:06,705 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:46:06,707 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-22 01:46:06,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-11-22 01:46:06,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2022-11-22 01:46:06,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-22 01:46:06,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-22 01:46:06,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-22 01:46:06,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-22 01:46:06,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-22 01:46:06,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:46:06,712 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 01:46:06,718 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 01:46:06,718 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:46:06,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:46:06 BasicIcfg [2022-11-22 01:46:06,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:46:06,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:46:06,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:46:06,740 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:46:06,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:04" (3/4) ... [2022-11-22 01:46:06,744 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:46:06,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:46:06,744 INFO L158 Benchmark]: Toolchain (without parser) took 3774.02ms. Allocated memory is still 188.7MB. Free memory was 149.4MB in the beginning and 127.3MB in the end (delta: 22.0MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-11-22 01:46:06,745 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:46:06,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.22ms. Allocated memory is still 188.7MB. Free memory was 148.9MB in the beginning and 131.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:46:06,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.39ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:46:06,746 INFO L158 Benchmark]: Boogie Preprocessor took 49.98ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 127.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:46:06,747 INFO L158 Benchmark]: RCFGBuilder took 441.01ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 117.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:46:06,747 INFO L158 Benchmark]: TraceAbstraction took 2729.10ms. Allocated memory is still 188.7MB. Free memory was 116.4MB in the beginning and 127.3MB in the end (delta: -11.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:46:06,747 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 188.7MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:46:06,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.22ms. Allocated memory is still 188.7MB. Free memory was 148.9MB in the beginning and 131.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.39ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.98ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 127.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.01ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 117.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2729.10ms. Allocated memory is still 188.7MB. Free memory was 116.4MB in the beginning and 127.3MB in the end (delta: -11.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 188.7MB. Free memory is still 127.3MB. 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: 1.6s, 68 PlacesBefore, 30 PlacesAfterwards, 61 TransitionsBefore, 23 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 38 TotalNumberOfCompositions, 2899 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1382, independent: 1222, independent conditional: 0, independent unconditional: 1222, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 729, independent: 690, independent conditional: 0, independent unconditional: 690, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 729, independent: 685, independent conditional: 0, independent unconditional: 685, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 96, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1382, independent: 532, independent conditional: 0, independent unconditional: 532, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 729, unknown conditional: 0, unknown unconditional: 729] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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: 681]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int x; [L685] 0 pthread_t id1, id2; [L686] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={3:0}, id2={2:0}, pthread_create(&id1, ((void *)0), t_fun, ((void *)0))=-1, x=0] [L687] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={3:0}, id2={2:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=0, x=0] [L681] 2 x++ VAL [arg={0:0}, arg={0:0}, x=1, x++=0x++=5] [L681] 1 x++ VAL [arg={0:0}, arg={0:0}, x=1, x++=0x++=5] Now there is a data race on ~x~0 between C: x++ [681] and C: x++ [681] - UnprovableResult [Line: 686]: 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: 687]: 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: 681]: 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 4 procedures, 79 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 30 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-11-22 01:46:06,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2faabea-d5d5-4b90-9b9c-90fdfc1fa859/bin/utaipan-g80aRyZoba/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