./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8 --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 257fb96430b0f36c2bbaa69cb6381ae36a61b3597c5e89eeb3224bf08a96c8c2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:20:27,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:20:27,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:20:27,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:20:27,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:20:27,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:20:27,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:20:27,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:20:27,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:20:27,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:20:27,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:20:27,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:20:27,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:20:27,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:20:27,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:20:27,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:20:27,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:20:27,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:20:27,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:20:27,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:20:27,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:20:27,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:20:27,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:20:27,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:20:27,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:20:27,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:20:27,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:20:27,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:20:27,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:20:27,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:20:27,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:20:27,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:20:27,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:20:27,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:20:27,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:20:27,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:20:27,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:20:27,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:20:27,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:20:27,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:20:27,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:20:27,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-07 01:20:28,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:20:28,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:20:28,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:20:28,027 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:20:28,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:20:28,028 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:20:28,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:20:28,028 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:20:28,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:20:28,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:20:28,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:20:28,029 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:20:28,029 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:20:28,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:20:28,030 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:20:28,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:20:28,031 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:20:28,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:20:28,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:20:28,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:20:28,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:20:28,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:20:28,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:20:28,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:20:28,033 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-07 01:20:28,033 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:20:28,033 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:20:28,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:20:28,034 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:20:28,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:20:28,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:20:28,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:20:28,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:20:28,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:20:28,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:20:28,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:20:28,036 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:20:28,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:20:28,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:20:28,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:20:28,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:20:28,037 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 257fb96430b0f36c2bbaa69cb6381ae36a61b3597c5e89eeb3224bf08a96c8c2 [2021-11-07 01:20:28,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:20:28,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:20:28,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:20:28,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:20:28,340 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:20:28,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i [2021-11-07 01:20:28,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/data/0d4080b5c/4beabb3109d041c9a0764ad1b33f6deb/FLAG83ea9e649 [2021-11-07 01:20:29,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:20:29,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i [2021-11-07 01:20:29,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/data/0d4080b5c/4beabb3109d041c9a0764ad1b33f6deb/FLAG83ea9e649 [2021-11-07 01:20:29,346 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/data/0d4080b5c/4beabb3109d041c9a0764ad1b33f6deb [2021-11-07 01:20:29,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:20:29,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:20:29,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:20:29,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:20:29,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:20:29,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:29" (1/1) ... [2021-11-07 01:20:29,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fced541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:29, skipping insertion in model container [2021-11-07 01:20:29,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:29" (1/1) ... [2021-11-07 01:20:29,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:20:29,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:20:30,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:20:30,080 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:20:30,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:20:30,266 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:20:30,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30 WrapperNode [2021-11-07 01:20:30,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:20:30,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:20:30,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:20:30,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:20:30,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:20:30,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:20:30,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:20:30,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:20:30,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:20:30,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:20:30,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:20:30,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:20:30,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (1/1) ... [2021-11-07 01:20:30,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:20:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:20:30,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:20:30,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:20:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:20:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:20:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:20:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:20:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 01:20:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 01:20:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 01:20:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:20:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:20:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:20:30,552 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:20:31,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:20:31,027 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 01:20:31,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:31 BoogieIcfgContainer [2021-11-07 01:20:31,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:20:31,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:20:31,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:20:31,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:20:31,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:20:29" (1/3) ... [2021-11-07 01:20:31,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa69df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:31, skipping insertion in model container [2021-11-07 01:20:31,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:30" (2/3) ... [2021-11-07 01:20:31,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa69df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:31, skipping insertion in model container [2021-11-07 01:20:31,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:31" (3/3) ... [2021-11-07 01:20:31,038 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_11-ptr_rc.i [2021-11-07 01:20:31,044 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:20:31,044 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:20:31,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 01:20:31,045 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:20:31,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,074 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,074 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,075 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,075 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,076 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,076 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,076 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,076 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,077 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,078 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,078 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,078 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,079 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,079 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,079 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,079 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,080 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,081 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,081 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,081 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,081 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,081 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,082 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,082 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,082 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,082 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,083 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,083 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,083 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,083 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,084 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,084 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,084 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,084 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,085 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,085 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,085 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,085 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,085 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,086 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,086 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,089 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,089 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,089 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,089 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,089 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,089 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,090 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,090 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,090 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,091 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,091 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,091 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,092 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,092 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,092 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,092 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,093 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,093 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,093 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,093 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,094 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,094 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,094 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,094 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,095 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,095 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,096 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,097 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,097 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,100 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,101 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,101 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,101 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,103 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,103 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,110 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,111 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,111 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,111 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,111 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,116 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,117 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,117 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,117 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,120 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:20:31,130 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 01:20:31,188 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:20:31,197 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:20:31,197 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 01:20:31,226 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:20:31,240 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 85 transitions, 178 flow [2021-11-07 01:20:31,243 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 85 transitions, 178 flow [2021-11-07 01:20:31,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 85 transitions, 178 flow [2021-11-07 01:20:31,306 INFO L129 PetriNetUnfolder]: 0/84 cut-off events. [2021-11-07 01:20:31,307 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 01:20:31,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-07 01:20:31,313 INFO L116 LiptonReduction]: Number of co-enabled transitions 1392 [2021-11-07 01:20:34,524 INFO L131 LiptonReduction]: Checked pairs total: 10706 [2021-11-07 01:20:34,525 INFO L133 LiptonReduction]: Total number of compositions: 41 [2021-11-07 01:20:34,533 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 44 transitions, 96 flow [2021-11-07 01:20:34,565 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 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) [2021-11-07 01:20:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 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) [2021-11-07 01:20:34,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:20:34,574 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:20:34,575 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:20:34,576 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:20:34,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:20:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash -14262125, now seen corresponding path program 1 times [2021-11-07 01:20:34,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:20:34,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325111196] [2021-11-07 01:20:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:20:34,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:20:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:20:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:20:34,921 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:20:34,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325111196] [2021-11-07 01:20:34,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325111196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:20:34,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:20:34,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:20:34,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70068684] [2021-11-07 01:20:34,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:20:34,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:20:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:20:34,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:34,954 INFO L87 Difference]: Start difference. First operand has 408 states, 397 states have (on average 1.9471032745591939) internal successors, (773), 407 states have internal predecessors, (773), 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 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:20:35,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:20:35,347 INFO L93 Difference]: Finished difference Result 482 states and 915 transitions. [2021-11-07 01:20:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:20:35,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 01:20:35,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:20:35,366 INFO L225 Difference]: With dead ends: 482 [2021-11-07 01:20:35,366 INFO L226 Difference]: Without dead ends: 482 [2021-11-07 01:20:35,367 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:35,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-11-07 01:20:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 454. [2021-11-07 01:20:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 444 states have (on average 1.9391891891891893) internal successors, (861), 453 states have internal predecessors, (861), 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) [2021-11-07 01:20:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 861 transitions. [2021-11-07 01:20:35,465 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 861 transitions. Word has length 9 [2021-11-07 01:20:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:20:35,466 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 861 transitions. [2021-11-07 01:20:35,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:20:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 861 transitions. [2021-11-07 01:20:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:20:35,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:20:35,467 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:20:35,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:20:35,468 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:20:35,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:20:35,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2026389720, now seen corresponding path program 1 times [2021-11-07 01:20:35,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:20:35,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943009301] [2021-11-07 01:20:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:20:35,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:20:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:20:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:20:35,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:20:35,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943009301] [2021-11-07 01:20:35,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943009301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:20:35,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:20:35,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:20:35,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721965500] [2021-11-07 01:20:35,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:20:35,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:20:35,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:20:35,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:35,677 INFO L87 Difference]: Start difference. First operand 454 states and 861 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:20:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:20:35,908 INFO L93 Difference]: Finished difference Result 487 states and 921 transitions. [2021-11-07 01:20:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:20:35,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 01:20:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:20:35,913 INFO L225 Difference]: With dead ends: 487 [2021-11-07 01:20:35,913 INFO L226 Difference]: Without dead ends: 487 [2021-11-07 01:20:35,914 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:35,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-11-07 01:20:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 473. [2021-11-07 01:20:35,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 463 states have (on average 1.9330453563714902) internal successors, (895), 472 states have internal predecessors, (895), 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) [2021-11-07 01:20:35,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 895 transitions. [2021-11-07 01:20:35,944 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 895 transitions. Word has length 9 [2021-11-07 01:20:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:20:35,945 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 895 transitions. [2021-11-07 01:20:35,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:20:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 895 transitions. [2021-11-07 01:20:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:20:35,947 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:20:35,947 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:20:35,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:20:35,948 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:20:35,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:20:35,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1222760358, now seen corresponding path program 1 times [2021-11-07 01:20:35,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:20:35,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752437117] [2021-11-07 01:20:35,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:20:35,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:20:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:20:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:20:36,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:20:36,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752437117] [2021-11-07 01:20:36,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752437117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:20:36,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:20:36,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:20:36,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274472081] [2021-11-07 01:20:36,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:20:36,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:20:36,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:20:36,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:36,068 INFO L87 Difference]: Start difference. First operand 473 states and 895 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 01:20:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:20:36,478 INFO L93 Difference]: Finished difference Result 576 states and 1095 transitions. [2021-11-07 01:20:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:20:36,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2021-11-07 01:20:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:20:36,485 INFO L225 Difference]: With dead ends: 576 [2021-11-07 01:20:36,485 INFO L226 Difference]: Without dead ends: 563 [2021-11-07 01:20:36,485 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:36,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2021-11-07 01:20:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 540. [2021-11-07 01:20:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 530 states have (on average 1.9320754716981132) internal successors, (1024), 539 states have internal predecessors, (1024), 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) [2021-11-07 01:20:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1024 transitions. [2021-11-07 01:20:36,510 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1024 transitions. Word has length 15 [2021-11-07 01:20:36,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:20:36,510 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 1024 transitions. [2021-11-07 01:20:36,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 01:20:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1024 transitions. [2021-11-07 01:20:36,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:20:36,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:20:36,513 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:20:36,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 01:20:36,513 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:20:36,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:20:36,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1949932634, now seen corresponding path program 1 times [2021-11-07 01:20:36,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:20:36,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043565525] [2021-11-07 01:20:36,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:20:36,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:20:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:20:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:20:36,668 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:20:36,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043565525] [2021-11-07 01:20:36,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043565525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:20:36,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:20:36,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 01:20:36,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437772378] [2021-11-07 01:20:36,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:20:36,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:20:36,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:20:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:36,670 INFO L87 Difference]: Start difference. First operand 540 states and 1024 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 01:20:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:20:36,941 INFO L93 Difference]: Finished difference Result 611 states and 1161 transitions. [2021-11-07 01:20:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:20:36,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2021-11-07 01:20:36,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:20:36,947 INFO L225 Difference]: With dead ends: 611 [2021-11-07 01:20:36,947 INFO L226 Difference]: Without dead ends: 611 [2021-11-07 01:20:36,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:20:36,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-11-07 01:20:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 591. [2021-11-07 01:20:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 581 states have (on average 1.9311531841652323) internal successors, (1122), 590 states have internal predecessors, (1122), 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) [2021-11-07 01:20:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1122 transitions. [2021-11-07 01:20:36,972 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1122 transitions. Word has length 15 [2021-11-07 01:20:36,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:20:36,972 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 1122 transitions. [2021-11-07 01:20:36,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-07 01:20:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1122 transitions. [2021-11-07 01:20:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:20:36,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:20:36,976 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:20:36,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 01:20:36,976 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:20:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:20:36,977 INFO L85 PathProgramCache]: Analyzing trace with hash -113196724, now seen corresponding path program 1 times [2021-11-07 01:20:36,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:20:36,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978016867] [2021-11-07 01:20:36,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:20:36,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:20:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:20:37,008 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:20:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:20:37,050 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:20:37,051 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:20:37,052 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:20:37,054 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:20:37,054 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:20:37,054 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:20:37,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:20:37,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:20:37,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:20:37,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:20:37,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 01:20:37,058 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-07 01:20:37,063 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:20:37,063 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:20:37,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:20:37 BasicIcfg [2021-11-07 01:20:37,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:20:37,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:20:37,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:20:37,121 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:20:37,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:31" (3/4) ... [2021-11-07 01:20:37,124 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:20:37,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:20:37,127 INFO L168 Benchmark]: Toolchain (without parser) took 7775.71 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 92.7 MB in the beginning and 99.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:20:37,128 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:20:37,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 914.60 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 85.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:20:37,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.61 ms. Allocated memory is still 125.8 MB. Free memory was 85.5 MB in the beginning and 82.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:20:37,130 INFO L168 Benchmark]: Boogie Preprocessor took 75.16 ms. Allocated memory is still 125.8 MB. Free memory was 82.7 MB in the beginning and 81.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:20:37,131 INFO L168 Benchmark]: RCFGBuilder took 587.48 ms. Allocated memory is still 125.8 MB. Free memory was 81.3 MB in the beginning and 67.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:20:37,131 INFO L168 Benchmark]: TraceAbstraction took 6088.87 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 67.3 MB in the beginning and 99.9 MB in the end (delta: -32.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:20:37,132 INFO L168 Benchmark]: Witness Printer took 5.64 ms. Allocated memory is still 151.0 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:20:37,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 914.60 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 85.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.61 ms. Allocated memory is still 125.8 MB. Free memory was 85.5 MB in the beginning and 82.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.16 ms. Allocated memory is still 125.8 MB. Free memory was 82.7 MB in the beginning and 81.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 587.48 ms. Allocated memory is still 125.8 MB. Free memory was 81.3 MB in the beginning and 67.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6088.87 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 67.3 MB in the beginning and 99.9 MB in the end (delta: -32.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.64 ms. Allocated memory is still 151.0 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 89 PlacesBefore, 48 PlacesAfterwards, 85 TransitionsBefore, 44 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 10706 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2384, positive: 1865, positive conditional: 0, positive unconditional: 1865, negative: 519, negative conditional: 0, negative unconditional: 519, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 859, positive: 756, positive conditional: 0, positive unconditional: 756, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 859, positive: 665, positive conditional: 0, positive unconditional: 665, negative: 194, negative conditional: 0, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 194, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 514, positive: 209, positive conditional: 0, positive unconditional: 209, negative: 304, negative conditional: 0, negative unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2384, positive: 1109, positive conditional: 0, positive unconditional: 1109, negative: 416, negative conditional: 0, negative unconditional: 416, unknown: 859, unknown conditional: 0, unknown unconditional: 859] , Statistics on independence cache: Total cache size (in pairs): 366, Positive cache size: 278, Positive conditional cache size: 0, Positive unconditional cache size: 278, Negative cache size: 88, Negative conditional cache size: 0, Negative unconditional cache size: 88 - 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: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L928] 0 pthread_t id; [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal={9:0}] [L921] 1 int *p = &myglobal; [L923] EXPR 1 \read(*p) VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal={9:0}, p={9:0}] [L931] EXPR 0 \read(myglobal) VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal={9:0}, p={9:0}] [L931] EXPR 0 myglobal+1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal={9:0}, p={9:0}] [L931] 0 myglobal=myglobal+1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal={9:0}, p={9:0}] [L923] 1 *p + 1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal={9:0}, p={9:0}] [L931] 0 myglobal=myglobal+1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={7:0}, myglobal={9:0}, p={9:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: myglobal+1 [931] * C: myglobal+1 [931] * C: myglobal+1 [931] * C: *p + 1 [923] * C: myglobal+1 [931] and C: myglobal=myglobal+1 [931] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 112 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 206 SDtfs, 160 SDslu, 123 SDs, 0 SdLazy, 907 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=591occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 85 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 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 could not prove your program: unable to determine feasibility of some traces [2021-11-07 01:20:37,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1c7ef32-869e-4e3f-b584-ff187e95c682/bin/utaipan-UUZaoUuFF8/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