./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:37:31,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:37:31,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 14:37:31,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:37:31,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:37:31,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:37:31,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:37:31,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:37:31,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:37:31,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:37:31,983 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:37:31,984 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:37:31,984 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:37:31,985 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:37:31,985 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:37:31,986 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:37:31,986 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:37:31,987 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:37:31,987 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:37:31,988 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:37:31,988 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:37:31,989 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:37:31,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:37:31,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:37:31,991 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:37:31,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:37:31,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:37:31,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:37:31,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:37:31,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:37:31,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:37:31,993 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 14:37:31,994 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:37:31,994 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:37:31,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:37:31,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:37:31,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:37:31,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:37:31,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:37:31,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:37:31,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:37:31,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:37:31,996 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:37:31,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:37:31,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:37:31,997 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:37:31,997 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:37:31,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:37:31,997 INFO L153 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_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 [2023-12-02 14:37:32,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:37:32,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:37:32,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:37:32,238 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:37:32,239 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:37:32,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-races/race-1_2b-join.i [2023-12-02 14:37:34,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:37:35,272 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:37:35,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/sv-benchmarks/c/ldv-races/race-1_2b-join.i [2023-12-02 14:37:35,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/data/c108f7d0c/953517b963a84192837de19171ccdba5/FLAG5fe7d4ec6 [2023-12-02 14:37:35,309 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/data/c108f7d0c/953517b963a84192837de19171ccdba5 [2023-12-02 14:37:35,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:37:35,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:37:35,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:37:35,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:37:35,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:37:35,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:37:35" (1/1) ... [2023-12-02 14:37:35,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58267665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:35, skipping insertion in model container [2023-12-02 14:37:35,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:37:35" (1/1) ... [2023-12-02 14:37:35,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:37:36,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:37:36,023 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:37:36,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:37:36,225 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:37:36,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36 WrapperNode [2023-12-02 14:37:36,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:37:36,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:37:36,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:37:36,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:37:36,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,295 INFO L138 Inliner]: procedures = 481, calls = 29, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 126 [2023-12-02 14:37:36,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:37:36,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:37:36,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:37:36,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:37:36,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:37:36,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:37:36,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:37:36,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:37:36,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (1/1) ... [2023-12-02 14:37:36,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:37:36,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:37:36,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:37:36,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:37:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:37:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:37:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 14:37:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:37:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:37:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:37:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:37:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:37:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 14:37:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-02 14:37:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-02 14:37:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:37:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:37:36,421 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 14:37:36,673 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:37:36,675 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:37:36,872 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:37:36,891 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:37:36,891 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 14:37:36,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:37:36 BoogieIcfgContainer [2023-12-02 14:37:36,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:37:36,895 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:37:36,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:37:36,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:37:36,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:37:35" (1/3) ... [2023-12-02 14:37:36,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ba261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:37:36, skipping insertion in model container [2023-12-02 14:37:36,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:37:36" (2/3) ... [2023-12-02 14:37:36,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ba261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:37:36, skipping insertion in model container [2023-12-02 14:37:36,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:37:36" (3/3) ... [2023-12-02 14:37:36,902 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2023-12-02 14:37:36,908 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 14:37:36,916 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:37:36,917 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-12-02 14:37:36,917 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 14:37:36,968 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 14:37:36,996 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 163 places, 169 transitions, 345 flow [2023-12-02 14:37:37,061 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 731 states, 714 states have (on average 1.8683473389355743) internal successors, (1334), 730 states have internal predecessors, (1334), 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) [2023-12-02 14:37:37,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:37:37,085 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66ba226a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:37:37,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-02 14:37:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 731 states, 714 states have (on average 1.8683473389355743) internal successors, (1334), 730 states have internal predecessors, (1334), 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) [2023-12-02 14:37:37,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 14:37:37,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:37:37,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:37:37,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 14:37:37,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:37:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash -257650032, now seen corresponding path program 1 times [2023-12-02 14:37:37,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:37:37,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789395617] [2023-12-02 14:37:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:37:37,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:37:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:37:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:37:37,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:37:37,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789395617] [2023-12-02 14:37:37,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789395617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:37:37,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:37:37,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:37:37,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804870766] [2023-12-02 14:37:37,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:37:37,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:37:37,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:37:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:37:37,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:37,437 INFO L87 Difference]: Start difference. First operand has 731 states, 714 states have (on average 1.8683473389355743) internal successors, (1334), 730 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-12-02 14:37:37,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:37:37,522 INFO L93 Difference]: Finished difference Result 682 states and 1214 transitions. [2023-12-02 14:37:37,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:37:37,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2023-12-02 14:37:37,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:37:37,541 INFO L225 Difference]: With dead ends: 682 [2023-12-02 14:37:37,541 INFO L226 Difference]: Without dead ends: 621 [2023-12-02 14:37:37,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:37,546 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:37:37,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 230 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:37:37,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-12-02 14:37:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2023-12-02 14:37:37,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 606 states have (on average 1.8135313531353134) internal successors, (1099), 620 states have internal predecessors, (1099), 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) [2023-12-02 14:37:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1099 transitions. [2023-12-02 14:37:37,630 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1099 transitions. Word has length 26 [2023-12-02 14:37:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:37:37,630 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 1099 transitions. [2023-12-02 14:37:37,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-12-02 14:37:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1099 transitions. [2023-12-02 14:37:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 14:37:37,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:37:37,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:37:37,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:37:37,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 14:37:37,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:37:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -545193658, now seen corresponding path program 1 times [2023-12-02 14:37:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:37:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065155682] [2023-12-02 14:37:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:37:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:37:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:37:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:37:37,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:37:37,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065155682] [2023-12-02 14:37:37,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065155682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:37:37,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:37:37,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:37:37,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215977187] [2023-12-02 14:37:37,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:37:37,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:37:37,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:37:37,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:37:37,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:37,723 INFO L87 Difference]: Start difference. First operand 621 states and 1099 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-12-02 14:37:37,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:37:37,780 INFO L93 Difference]: Finished difference Result 820 states and 1455 transitions. [2023-12-02 14:37:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:37:37,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-12-02 14:37:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:37:37,786 INFO L225 Difference]: With dead ends: 820 [2023-12-02 14:37:37,787 INFO L226 Difference]: Without dead ends: 817 [2023-12-02 14:37:37,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:37,788 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 80 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:37:37,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 197 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:37:37,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2023-12-02 14:37:37,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 617. [2023-12-02 14:37:37,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 605 states have (on average 1.8115702479338842) internal successors, (1096), 616 states have internal predecessors, (1096), 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) [2023-12-02 14:37:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1096 transitions. [2023-12-02 14:37:37,818 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1096 transitions. Word has length 29 [2023-12-02 14:37:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:37:37,819 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 1096 transitions. [2023-12-02 14:37:37,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-12-02 14:37:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1096 transitions. [2023-12-02 14:37:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 14:37:37,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:37:37,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:37:37,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:37:37,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 14:37:37,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:37:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1230050602, now seen corresponding path program 1 times [2023-12-02 14:37:37,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:37:37,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056923626] [2023-12-02 14:37:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:37:37,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:37:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:37:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:37:37,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:37:37,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056923626] [2023-12-02 14:37:37,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056923626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:37:37,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:37:37,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:37:37,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960335415] [2023-12-02 14:37:37,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:37:37,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:37:37,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:37:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:37:37,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:37,920 INFO L87 Difference]: Start difference. First operand 617 states and 1096 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 14:37:37,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:37:37,960 INFO L93 Difference]: Finished difference Result 616 states and 1095 transitions. [2023-12-02 14:37:37,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:37:37,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2023-12-02 14:37:37,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:37:37,965 INFO L225 Difference]: With dead ends: 616 [2023-12-02 14:37:37,965 INFO L226 Difference]: Without dead ends: 616 [2023-12-02 14:37:37,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:37,967 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:37:37,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 210 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:37:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-12-02 14:37:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2023-12-02 14:37:37,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 605 states have (on average 1.8099173553719008) internal successors, (1095), 615 states have internal predecessors, (1095), 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) [2023-12-02 14:37:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 1095 transitions. [2023-12-02 14:37:37,990 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 1095 transitions. Word has length 43 [2023-12-02 14:37:37,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:37:37,990 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 1095 transitions. [2023-12-02 14:37:37,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 14:37:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 1095 transitions. [2023-12-02 14:37:37,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 14:37:37,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:37:37,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:37:37,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:37:37,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 14:37:37,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:37:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash 566590856, now seen corresponding path program 1 times [2023-12-02 14:37:37,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:37:37,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889662385] [2023-12-02 14:37:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:37:37,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:37:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:37:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:37:38,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:37:38,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889662385] [2023-12-02 14:37:38,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889662385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:37:38,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:37:38,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:37:38,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516948026] [2023-12-02 14:37:38,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:37:38,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:37:38,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:37:38,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:37:38,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:38,086 INFO L87 Difference]: Start difference. First operand 616 states and 1095 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-12-02 14:37:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:37:38,130 INFO L93 Difference]: Finished difference Result 626 states and 1113 transitions. [2023-12-02 14:37:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:37:38,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2023-12-02 14:37:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:37:38,135 INFO L225 Difference]: With dead ends: 626 [2023-12-02 14:37:38,135 INFO L226 Difference]: Without dead ends: 626 [2023-12-02 14:37:38,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:38,137 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 13 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:37:38,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 219 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:37:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-12-02 14:37:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 618. [2023-12-02 14:37:38,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 607 states have (on average 1.8088962108731466) internal successors, (1098), 617 states have internal predecessors, (1098), 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) [2023-12-02 14:37:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1098 transitions. [2023-12-02 14:37:38,159 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1098 transitions. Word has length 49 [2023-12-02 14:37:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:37:38,160 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 1098 transitions. [2023-12-02 14:37:38,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-12-02 14:37:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1098 transitions. [2023-12-02 14:37:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 14:37:38,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:37:38,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:37:38,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:37:38,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 14:37:38,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:37:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1988034614, now seen corresponding path program 1 times [2023-12-02 14:37:38,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:37:38,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64082681] [2023-12-02 14:37:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:37:38,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:37:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:37:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:37:38,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:37:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64082681] [2023-12-02 14:37:38,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64082681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:37:38,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:37:38,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:37:38,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192567990] [2023-12-02 14:37:38,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:37:38,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:37:38,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:37:38,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:37:38,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:38,262 INFO L87 Difference]: Start difference. First operand 618 states and 1098 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-02 14:37:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:37:38,306 INFO L93 Difference]: Finished difference Result 668 states and 1187 transitions. [2023-12-02 14:37:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:37:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2023-12-02 14:37:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:37:38,312 INFO L225 Difference]: With dead ends: 668 [2023-12-02 14:37:38,312 INFO L226 Difference]: Without dead ends: 605 [2023-12-02 14:37:38,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:37:38,313 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 40 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:37:38,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 247 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:37:38,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-12-02 14:37:38,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 579. [2023-12-02 14:37:38,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 570 states have (on average 1.787719298245614) internal successors, (1019), 578 states have internal predecessors, (1019), 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) [2023-12-02 14:37:38,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 1019 transitions. [2023-12-02 14:37:38,335 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 1019 transitions. Word has length 50 [2023-12-02 14:37:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:37:38,335 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 1019 transitions. [2023-12-02 14:37:38,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-02 14:37:38,335 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 1019 transitions. [2023-12-02 14:37:38,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 14:37:38,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:37:38,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:37:38,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:37:38,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-12-02 14:37:38,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:37:38,339 INFO L85 PathProgramCache]: Analyzing trace with hash -481379111, now seen corresponding path program 1 times [2023-12-02 14:37:38,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:37:38,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292991048] [2023-12-02 14:37:38,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:37:38,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:37:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:37:38,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:37:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:37:38,413 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:37:38,414 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:37:38,415 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-12-02 14:37:38,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-12-02 14:37:38,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-12-02 14:37:38,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-12-02 14:37:38,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-12-02 14:37:38,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-12-02 14:37:38,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-12-02 14:37:38,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-12-02 14:37:38,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-12-02 14:37:38,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-12-02 14:37:38,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-12-02 14:37:38,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-12-02 14:37:38,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:37:38,422 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-02 14:37:38,427 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 14:37:38,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:37:38,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-12-02 14:37:38,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated [2023-12-02 14:37:38,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated [2023-12-02 14:37:38,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:37:38 BasicIcfg [2023-12-02 14:37:38,462 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:37:38,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:37:38,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:37:38,463 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:37:38,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:37:36" (3/4) ... [2023-12-02 14:37:38,465 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:37:38,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:37:38,467 INFO L158 Benchmark]: Toolchain (without parser) took 3153.82ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 103.6MB in the beginning and 129.0MB in the end (delta: -25.5MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-12-02 14:37:38,467 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:37:38,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 912.33ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 103.4MB in the beginning and 162.7MB in the end (delta: -59.3MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2023-12-02 14:37:38,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.05ms. Allocated memory is still 201.3MB. Free memory was 162.7MB in the beginning and 159.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:37:38,468 INFO L158 Benchmark]: Boogie Preprocessor took 42.95ms. Allocated memory is still 201.3MB. Free memory was 159.6MB in the beginning and 156.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:37:38,468 INFO L158 Benchmark]: RCFGBuilder took 552.52ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 132.3MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 14:37:38,469 INFO L158 Benchmark]: TraceAbstraction took 1566.72ms. Allocated memory is still 201.3MB. Free memory was 132.3MB in the beginning and 129.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2023-12-02 14:37:38,469 INFO L158 Benchmark]: Witness Printer took 3.70ms. Allocated memory is still 201.3MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:37:38,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 912.33ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 103.4MB in the beginning and 162.7MB in the end (delta: -59.3MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.05ms. Allocated memory is still 201.3MB. Free memory was 162.7MB in the beginning and 159.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.95ms. Allocated memory is still 201.3MB. Free memory was 159.6MB in the beginning and 156.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.52ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 132.3MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1566.72ms. Allocated memory is still 201.3MB. Free memory was 132.3MB in the beginning and 129.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 3.70ms. Allocated memory is still 201.3MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 1699]: Data race detected [2023-12-02 14:37:38,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-12-02 14:37:38,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated [2023-12-02 14:37:38,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated [2023-12-02 14:37:38,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-12-02 14:37:38,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated [2023-12-02 14:37:38,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated [2023-12-02 14:37:38,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-12-02 14:37:38,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1={3:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1696] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 2 [1709] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 175 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 1103 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 460 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 643 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 234 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-02 14:37:38,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d0e2548-c831-492d-bf4b-b30aa5a371fe/bin/utaipan-verify-nQ1chXbOIh/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