./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_03-munge_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_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/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_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_03-munge_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/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_c0747b1b-759f-455f-9d52-6b411a324925/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 81960e880aaa6f71673e64a755149f585c3b22c34964928097fd9d26ae710e5b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:49:16,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:49:16,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:49:17,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:49:17,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:49:17,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:49:17,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:49:17,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:49:17,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:49:17,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:49:17,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:49:17,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:49:17,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:49:17,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:49:17,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:49:17,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:49:17,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:49:17,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:49:17,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:49:17,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:49:17,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:49:17,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:49:17,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:49:17,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:49:17,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:49:17,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:49:17,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:49:17,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:49:17,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:49:17,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:49:17,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:49:17,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:49:17,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:49:17,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:49:17,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:49:17,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:49:17,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:49:17,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:49:17,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:49:17,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:49:17,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:49:17,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-07 01:49:17,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:49:17,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:49:17,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:49:17,156 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:49:17,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:49:17,157 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:49:17,157 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:49:17,157 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:49:17,157 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:49:17,158 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:49:17,165 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:49:17,165 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:49:17,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:49:17,165 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:49:17,166 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:49:17,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:49:17,167 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:49:17,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:49:17,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:49:17,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:49:17,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:49:17,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:49:17,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:49:17,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:49:17,168 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-07 01:49:17,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:49:17,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:49:17,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:49:17,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:49:17,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:49:17,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:49:17,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:49:17,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:49:17,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:49:17,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:49:17,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:49:17,172 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:49:17,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:49:17,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:49:17,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:49:17,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:49:17,173 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_c0747b1b-759f-455f-9d52-6b411a324925/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81960e880aaa6f71673e64a755149f585c3b22c34964928097fd9d26ae710e5b [2021-11-07 01:49:17,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:49:17,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:49:17,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:49:17,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:49:17,450 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:49:17,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/goblint-regression/04-mutex_03-munge_rc.i [2021-11-07 01:49:17,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/data/a839fc53f/d2419ae8c4f64c33b817886e59ed9b77/FLAG37fdf63f4 [2021-11-07 01:49:18,167 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:49:18,168 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/sv-benchmarks/c/goblint-regression/04-mutex_03-munge_rc.i [2021-11-07 01:49:18,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/data/a839fc53f/d2419ae8c4f64c33b817886e59ed9b77/FLAG37fdf63f4 [2021-11-07 01:49:18,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/data/a839fc53f/d2419ae8c4f64c33b817886e59ed9b77 [2021-11-07 01:49:18,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:49:18,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:49:18,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:49:18,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:49:18,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:49:18,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:49:18" (1/1) ... [2021-11-07 01:49:18,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359e5fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:18, skipping insertion in model container [2021-11-07 01:49:18,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:49:18" (1/1) ... [2021-11-07 01:49:18,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:49:18,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:49:18,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:49:19,008 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:49:19,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:49:19,158 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:49:19,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19 WrapperNode [2021-11-07 01:49:19,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:49:19,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:49:19,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:49:19,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:49:19,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:49:19,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:49:19,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:49:19,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:49:19,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:49:19,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:49:19,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:49:19,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:49:19,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (1/1) ... [2021-11-07 01:49:19,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:49:19,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:49:19,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:49:19,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:49:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:49:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:49:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:49:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:49:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 01:49:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 01:49:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 01:49:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:49:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:49:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:49:19,377 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 01:49:19,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:49:19,756 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-07 01:49:19,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:49:19 BoogieIcfgContainer [2021-11-07 01:49:19,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:49:19,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:49:19,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:49:19,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:49:19,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:49:18" (1/3) ... [2021-11-07 01:49:19,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7b5ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:49:19, skipping insertion in model container [2021-11-07 01:49:19,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:49:19" (2/3) ... [2021-11-07 01:49:19,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7b5ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:49:19, skipping insertion in model container [2021-11-07 01:49:19,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:49:19" (3/3) ... [2021-11-07 01:49:19,765 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_03-munge_rc.i [2021-11-07 01:49:19,770 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:49:19,770 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:49:19,770 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 01:49:19,770 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:49:19,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,797 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,797 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,798 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,798 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,800 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,801 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,802 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,803 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,806 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,806 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,807 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,810 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,811 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,811 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,812 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:49:19,819 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 01:49:19,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:49:19,903 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 01:49:19,903 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 01:49:19,929 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:49:19,945 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 73 transitions, 154 flow [2021-11-07 01:49:19,948 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 73 transitions, 154 flow [2021-11-07 01:49:19,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 154 flow [2021-11-07 01:49:19,986 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-11-07 01:49:19,986 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 01:49:19,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 0/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-07 01:49:19,990 INFO L116 LiptonReduction]: Number of co-enabled transitions 864 [2021-11-07 01:49:22,781 INFO L131 LiptonReduction]: Checked pairs total: 3300 [2021-11-07 01:49:22,782 INFO L133 LiptonReduction]: Total number of compositions: 59 [2021-11-07 01:49:22,790 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2021-11-07 01:49:22,804 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 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 01:49:22,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 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 01:49:22,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-07 01:49:22,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:49:22,812 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-07 01:49:22,812 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:49:22,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:49:22,817 INFO L85 PathProgramCache]: Analyzing trace with hash 249498, now seen corresponding path program 1 times [2021-11-07 01:49:22,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:49:22,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225298214] [2021-11-07 01:49:22,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:49:22,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:49:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:49:23,000 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 01:49:23,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:49:23,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225298214] [2021-11-07 01:49:23,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225298214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:49:23,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:49:23,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 01:49:23,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403909348] [2021-11-07 01:49:23,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:49:23,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:49:23,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:49:23,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:49:23,025 INFO L87 Difference]: Start difference. First operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 01:49:23,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:49:23,039 INFO L93 Difference]: Finished difference Result 81 states and 142 transitions. [2021-11-07 01:49:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:49:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-07 01:49:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:49:23,050 INFO L225 Difference]: With dead ends: 81 [2021-11-07 01:49:23,050 INFO L226 Difference]: Without dead ends: 79 [2021-11-07 01:49:23,051 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:49:23,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-07 01:49:23,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-07 01:49:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 71 states have (on average 1.943661971830986) internal successors, (138), 78 states have internal predecessors, (138), 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 01:49:23,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 138 transitions. [2021-11-07 01:49:23,088 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 138 transitions. Word has length 3 [2021-11-07 01:49:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:49:23,089 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 138 transitions. [2021-11-07 01:49:23,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 01:49:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 138 transitions. [2021-11-07 01:49:23,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 01:49:23,090 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:49:23,090 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 01:49:23,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:49:23,091 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:49:23,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:49:23,091 INFO L85 PathProgramCache]: Analyzing trace with hash 239759053, now seen corresponding path program 1 times [2021-11-07 01:49:23,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:49:23,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361774343] [2021-11-07 01:49:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:49:23,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:49:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:49:23,155 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 01:49:23,155 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:49:23,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361774343] [2021-11-07 01:49:23,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361774343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:49:23,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:49:23,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:49:23,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102050572] [2021-11-07 01:49:23,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:49:23,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:49:23,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:49:23,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:49:23,158 INFO L87 Difference]: Start difference. First operand 79 states and 138 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 01:49:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:49:23,196 INFO L93 Difference]: Finished difference Result 86 states and 148 transitions. [2021-11-07 01:49:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:49:23,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-11-07 01:49:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:49:23,199 INFO L225 Difference]: With dead ends: 86 [2021-11-07 01:49:23,200 INFO L226 Difference]: Without dead ends: 86 [2021-11-07 01:49:23,200 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:49:23,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-07 01:49:23,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 78. [2021-11-07 01:49:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.8873239436619718) internal successors, (134), 77 states have internal predecessors, (134), 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 01:49:23,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 134 transitions. [2021-11-07 01:49:23,211 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 134 transitions. Word has length 5 [2021-11-07 01:49:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:49:23,211 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 134 transitions. [2021-11-07 01:49:23,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 01:49:23,212 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 134 transitions. [2021-11-07 01:49:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 01:49:23,212 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:49:23,212 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:49:23,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:49:23,213 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 01:49:23,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:49:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1519746195, now seen corresponding path program 1 times [2021-11-07 01:49:23,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:49:23,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105281563] [2021-11-07 01:49:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:49:23,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:49:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:49:23,262 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 01:49:23,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:49:23,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105281563] [2021-11-07 01:49:23,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105281563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:49:23,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:49:23,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:49:23,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411646669] [2021-11-07 01:49:23,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:49:23,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:49:23,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:49:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:49:23,265 INFO L87 Difference]: Start difference. First operand 78 states and 134 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 01:49:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:49:23,293 INFO L93 Difference]: Finished difference Result 79 states and 133 transitions. [2021-11-07 01:49:23,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:49:23,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-07 01:49:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:49:23,295 INFO L225 Difference]: With dead ends: 79 [2021-11-07 01:49:23,297 INFO L226 Difference]: Without dead ends: 69 [2021-11-07 01:49:23,297 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:49:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-07 01:49:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-07 01:49:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 63 states have (on average 1.7936507936507937) internal successors, (113), 68 states have internal predecessors, (113), 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 01:49:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 113 transitions. [2021-11-07 01:49:23,307 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 113 transitions. Word has length 7 [2021-11-07 01:49:23,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:49:23,308 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 113 transitions. [2021-11-07 01:49:23,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 01:49:23,309 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 113 transitions. [2021-11-07 01:49:23,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 01:49:23,309 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:49:23,310 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:49:23,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 01:49:23,310 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 01:49:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:49:23,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1514693791, now seen corresponding path program 1 times [2021-11-07 01:49:23,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:49:23,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273103161] [2021-11-07 01:49:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:49:23,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:49:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:49:23,393 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 01:49:23,393 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:49:23,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273103161] [2021-11-07 01:49:23,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273103161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:49:23,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:49:23,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:49:23,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291327812] [2021-11-07 01:49:23,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:49:23,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:49:23,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:49:23,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:49:23,403 INFO L87 Difference]: Start difference. First operand 69 states and 113 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 01:49:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:49:23,434 INFO L93 Difference]: Finished difference Result 66 states and 103 transitions. [2021-11-07 01:49:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:49:23,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-07 01:49:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:49:23,436 INFO L225 Difference]: With dead ends: 66 [2021-11-07 01:49:23,436 INFO L226 Difference]: Without dead ends: 56 [2021-11-07 01:49:23,437 INFO L786 BasicCegarLoop]: 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 [2021-11-07 01:49:23,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-07 01:49:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-07 01:49:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 55 states have internal predecessors, (82), 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 01:49:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2021-11-07 01:49:23,446 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 7 [2021-11-07 01:49:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:49:23,447 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2021-11-07 01:49:23,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 01:49:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2021-11-07 01:49:23,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:49:23,448 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:49:23,449 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:49:23,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 01:49:23,449 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-07 01:49:23,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:49:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash -160201060, now seen corresponding path program 1 times [2021-11-07 01:49:23,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:49:23,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638375062] [2021-11-07 01:49:23,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:49:23,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:49:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:49:23,499 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:49:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:49:23,565 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:49:23,566 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:49:23,567 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:49:23,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:49:23,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:49:23,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:49:23,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:49:23,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:49:23,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:49:23,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 01:49:23,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 01:49:23,572 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-07 01:49:23,578 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:49:23,578 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:49:23,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:49:23 BasicIcfg [2021-11-07 01:49:23,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:49:23,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:49:23,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:49:23,618 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:49:23,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:49:19" (3/4) ... [2021-11-07 01:49:23,621 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:49:23,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:49:23,624 INFO L168 Benchmark]: Toolchain (without parser) took 5233.10 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.9 MB in the beginning and 65.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:49:23,628 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:49:23,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.22 ms. Allocated memory is still 104.9 MB. Free memory was 63.7 MB in the beginning and 62.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:49:23,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.02 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 59.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:49:23,631 INFO L168 Benchmark]: Boogie Preprocessor took 52.81 ms. Allocated memory is still 104.9 MB. Free memory was 59.7 MB in the beginning and 58.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:49:23,631 INFO L168 Benchmark]: RCFGBuilder took 466.88 ms. Allocated memory is still 104.9 MB. Free memory was 58.6 MB in the beginning and 46.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:49:23,632 INFO L168 Benchmark]: TraceAbstraction took 3857.63 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 46.1 MB in the beginning and 65.0 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:49:23,634 INFO L168 Benchmark]: Witness Printer took 3.53 ms. Allocated memory is still 125.8 MB. Free memory is still 65.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:49:23,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 767.22 ms. Allocated memory is still 104.9 MB. Free memory was 63.7 MB in the beginning and 62.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.02 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 59.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.81 ms. Allocated memory is still 104.9 MB. Free memory was 59.7 MB in the beginning and 58.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 466.88 ms. Allocated memory is still 104.9 MB. Free memory was 58.6 MB in the beginning and 46.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3857.63 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 46.1 MB in the beginning and 65.0 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.53 ms. Allocated memory is still 125.8 MB. Free memory is still 65.0 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: 2.8s, 77 PlacesBefore, 26 PlacesAfterwards, 73 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 9 FixpointIterations, 26 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 3300 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1589, positive: 1312, positive conditional: 0, positive unconditional: 1312, negative: 277, negative conditional: 0, negative unconditional: 277, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 661, positive: 618, positive conditional: 0, positive unconditional: 618, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 661, positive: 578, positive conditional: 0, positive unconditional: 578, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 83, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 176, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1589, positive: 694, positive conditional: 0, positive unconditional: 694, negative: 234, negative conditional: 0, negative unconditional: 234, unknown: 661, unknown conditional: 0, unknown unconditional: 661] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - 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: 922]: 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 } } } }; [L930] 0 pthread_t id; [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [mutex1={5:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal+1 VAL [mutex1={5:0}, mutex2={2:0}, myglobal=0] [L922] EXPR 0 myglobal+1 [L922] 0 myglobal=myglobal+1 VAL [mutex1={5:0}, mutex2={2:0}, myglobal=1] [L922] 1 myglobal+1 VAL [mutex1={5:0}, mutex2={2:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [922] - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: 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: 931]: 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: 922]: 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, 94 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 22 SDslu, 15 SDs, 0 SdLazy, 53 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 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 01:49:23,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0747b1b-759f-455f-9d52-6b411a324925/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