./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/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_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/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_33415f4c-8ca6-4012-b91c-cbfde89d3daa/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 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:30:06,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:30:06,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 08:30:06,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:30:06,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:30:06,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:30:06,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:30:06,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:30:06,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:30:06,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:30:06,178 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:30:06,178 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:30:06,179 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:30:06,179 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:30:06,180 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:30:06,181 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:30:06,181 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:30:06,182 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:30:06,182 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:30:06,183 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:30:06,183 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:30:06,184 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:30:06,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:30:06,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:30:06,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 08:30:06,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:30:06,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 08:30:06,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:30:06,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:30:06,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:30:06,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:30:06,190 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 08:30:06,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 08:30:06,191 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 08:30:06,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:30:06,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:30:06,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:30:06,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:30:06,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:30:06,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:30:06,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:30:06,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:30:06,193 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:30:06,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:30:06,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:30:06,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:30:06,194 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:30:06,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:30:06,195 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_33415f4c-8ca6-4012-b91c-cbfde89d3daa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2023-12-02 08:30:06,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:30:06,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:30:06,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:30:06,482 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:30:06,482 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:30:06,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-12-02 08:30:09,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:30:10,033 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:30:10,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-12-02 08:30:10,063 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/data/c7ae897d2/04b39cd8c8964f51a83e8ebe2b005820/FLAG8d8987a19 [2023-12-02 08:30:10,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/data/c7ae897d2/04b39cd8c8964f51a83e8ebe2b005820 [2023-12-02 08:30:10,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:30:10,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:30:10,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:30:10,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:30:10,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:30:10,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:10" (1/1) ... [2023-12-02 08:30:10,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4938fca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:10, skipping insertion in model container [2023-12-02 08:30:10,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:10" (1/1) ... [2023-12-02 08:30:10,190 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:30:11,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:30:11,083 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:30:11,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:30:11,426 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:30:11,426 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:30:11,435 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:30:11,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11 WrapperNode [2023-12-02 08:30:11,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:30:11,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:30:11,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:30:11,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:30:11,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,669 INFO L138 Inliner]: procedures = 490, calls = 133, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 3341 [2023-12-02 08:30:11,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:30:11,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:30:11,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:30:11,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:30:11,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:30:11,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:30:11,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:30:11,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:30:11,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (1/1) ... [2023-12-02 08:30:11,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:30:11,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:30:11,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:30:11,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:30:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2023-12-02 08:30:12,014 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2023-12-02 08:30:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 08:30:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:30:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 08:30:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 08:30:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 08:30:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:30:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 08:30:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:30:12,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:30:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:30:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 08:30:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 08:30:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 08:30:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:30:12,020 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 08:30:12,371 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:30:12,374 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:30:16,672 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:30:18,296 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:30:18,296 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-12-02 08:30:18,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:18 BoogieIcfgContainer [2023-12-02 08:30:18,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:30:18,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:30:18,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:30:18,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:30:18,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:30:10" (1/3) ... [2023-12-02 08:30:18,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f6716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:18, skipping insertion in model container [2023-12-02 08:30:18,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:11" (2/3) ... [2023-12-02 08:30:18,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f6716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:18, skipping insertion in model container [2023-12-02 08:30:18,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:18" (3/3) ... [2023-12-02 08:30:18,310 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2023-12-02 08:30:18,321 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 08:30:18,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:30:18,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2023-12-02 08:30:18,334 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 08:30:18,622 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 08:30:18,694 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 2514 places, 2602 transitions, 5211 flow [2023-12-02 08:30:26,779 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 486632 states, 481131 states have (on average 2.082474419648703) internal successors, (1001943), 486631 states have internal predecessors, (1001943), 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 08:30:26,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:30:26,826 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;@5bc13ffe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:30:26,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 279 error locations. [2023-12-02 08:30:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 486632 states, 481131 states have (on average 2.082474419648703) internal successors, (1001943), 486631 states have internal predecessors, (1001943), 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 08:30:27,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 08:30:27,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:30:27,379 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] [2023-12-02 08:30:27,380 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [StealerErr0ASSERT_VIOLATIONDATA_RACE, StealerErr1ASSERT_VIOLATIONDATA_RACE, StealerErr2ASSERT_VIOLATIONDATA_RACE, StealerErr3ASSERT_VIOLATIONDATA_RACE (and 275 more)] === [2023-12-02 08:30:27,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:30:27,385 INFO L85 PathProgramCache]: Analyzing trace with hash -175989322, now seen corresponding path program 1 times [2023-12-02 08:30:27,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:30:27,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933311843] [2023-12-02 08:30:27,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:30:27,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:30:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:30:28,269 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 08:30:28,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:30:28,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933311843] [2023-12-02 08:30:28,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933311843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:30:28,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:30:28,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 08:30:28,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379001218] [2023-12-02 08:30:28,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:30:28,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 08:30:28,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:30:28,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 08:30:28,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:30:28,859 INFO L87 Difference]: Start difference. First operand has 486632 states, 481131 states have (on average 2.082474419648703) internal successors, (1001943), 486631 states have internal predecessors, (1001943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 08:30:42,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:30:42,110 INFO L93 Difference]: Finished difference Result 421989 states and 864728 transitions. [2023-12-02 08:30:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 08:30:42,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2023-12-02 08:30:42,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:30:43,774 INFO L225 Difference]: With dead ends: 421989 [2023-12-02 08:30:43,774 INFO L226 Difference]: Without dead ends: 421833 [2023-12-02 08:30:43,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:30:43,780 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 2 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5671 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:30:43,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5671 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-12-02 08:30:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421833 states. [2023-12-02 08:30:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421833 to 421833. [2023-12-02 08:30:55,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421833 states, 420985 states have (on average 2.0533676971863604) internal successors, (864437), 421832 states have internal predecessors, (864437), 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 08:30:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421833 states to 421833 states and 864437 transitions. [2023-12-02 08:30:56,933 INFO L78 Accepts]: Start accepts. Automaton has 421833 states and 864437 transitions. Word has length 30 [2023-12-02 08:30:56,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:30:56,934 INFO L495 AbstractCegarLoop]: Abstraction has 421833 states and 864437 transitions. [2023-12-02 08:30:56,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 08:30:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 421833 states and 864437 transitions. [2023-12-02 08:30:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 08:30:56,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:30:56,937 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] [2023-12-02 08:30:56,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 08:30:56,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [StealerErr0ASSERT_VIOLATIONDATA_RACE, StealerErr1ASSERT_VIOLATIONDATA_RACE, StealerErr2ASSERT_VIOLATIONDATA_RACE, StealerErr3ASSERT_VIOLATIONDATA_RACE (and 275 more)] === [2023-12-02 08:30:56,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:30:56,939 INFO L85 PathProgramCache]: Analyzing trace with hash 550251739, now seen corresponding path program 1 times [2023-12-02 08:30:56,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:30:56,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574367046] [2023-12-02 08:30:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:30:56,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:30:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:30:58,000 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 08:30:58,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:30:58,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574367046] [2023-12-02 08:30:58,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574367046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:30:58,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:30:58,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 08:30:58,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385623429] [2023-12-02 08:30:58,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:30:58,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 08:30:58,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:30:58,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 08:30:58,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:30:58,006 INFO L87 Difference]: Start difference. First operand 421833 states and 864437 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 08:31:12,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:12,103 INFO L93 Difference]: Finished difference Result 421832 states and 864436 transitions. [2023-12-02 08:31:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 08:31:12,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2023-12-02 08:31:12,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:13,868 INFO L225 Difference]: With dead ends: 421832 [2023-12-02 08:31:13,868 INFO L226 Difference]: Without dead ends: 421832 [2023-12-02 08:31:13,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:31:13,871 INFO L413 NwaCegarLoop]: 2316 mSDtfsCounter, 1 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7347 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:13,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7347 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-12-02 08:31:15,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421832 states. [2023-12-02 08:31:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421832 to 421832. [2023-12-02 08:31:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421832 states, 420985 states have (on average 2.0533653218048147) internal successors, (864436), 421831 states have internal predecessors, (864436), 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 08:31:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421832 states to 421832 states and 864436 transitions. [2023-12-02 08:31:26,248 INFO L78 Accepts]: Start accepts. Automaton has 421832 states and 864436 transitions. Word has length 38 [2023-12-02 08:31:26,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:26,249 INFO L495 AbstractCegarLoop]: Abstraction has 421832 states and 864436 transitions. [2023-12-02 08:31:26,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 08:31:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 421832 states and 864436 transitions. [2023-12-02 08:31:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 08:31:26,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:26,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:26,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 08:31:26,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [StealerErr0ASSERT_VIOLATIONDATA_RACE, StealerErr1ASSERT_VIOLATIONDATA_RACE, StealerErr2ASSERT_VIOLATIONDATA_RACE, StealerErr3ASSERT_VIOLATIONDATA_RACE (and 275 more)] === [2023-12-02 08:31:26,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2052957850, now seen corresponding path program 1 times [2023-12-02 08:31:26,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:26,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218441194] [2023-12-02 08:31:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:26,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:27,100 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 08:31:27,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:27,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218441194] [2023-12-02 08:31:27,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218441194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:27,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:31:27,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 08:31:27,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425754595] [2023-12-02 08:31:27,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:27,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 08:31:27,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:27,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 08:31:27,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:31:27,105 INFO L87 Difference]: Start difference. First operand 421832 states and 864436 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 08:31:42,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:42,205 INFO L93 Difference]: Finished difference Result 421831 states and 864435 transitions. [2023-12-02 08:31:42,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 08:31:42,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2023-12-02 08:31:42,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:43,578 INFO L225 Difference]: With dead ends: 421831 [2023-12-02 08:31:43,578 INFO L226 Difference]: Without dead ends: 421831 [2023-12-02 08:31:43,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:31:43,580 INFO L413 NwaCegarLoop]: 2315 mSDtfsCounter, 1 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7346 SdHoareTripleChecker+Invalid, 2232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:43,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7346 Invalid, 2232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-12-02 08:31:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421831 states. [2023-12-02 08:31:52,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421831 to 421831. [2023-12-02 08:31:53,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421831 states, 420985 states have (on average 2.0533629464232694) internal successors, (864435), 421830 states have internal predecessors, (864435), 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 08:31:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421831 states to 421831 states and 864435 transitions. [2023-12-02 08:31:54,729 INFO L78 Accepts]: Start accepts. Automaton has 421831 states and 864435 transitions. Word has length 65 [2023-12-02 08:31:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:54,730 INFO L495 AbstractCegarLoop]: Abstraction has 421831 states and 864435 transitions. [2023-12-02 08:31:54,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 08:31:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 421831 states and 864435 transitions. [2023-12-02 08:31:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 08:31:54,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:54,734 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, 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 08:31:54,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 08:31:54,735 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [StealerErr0ASSERT_VIOLATIONDATA_RACE, StealerErr1ASSERT_VIOLATIONDATA_RACE, StealerErr2ASSERT_VIOLATIONDATA_RACE, StealerErr3ASSERT_VIOLATIONDATA_RACE (and 275 more)] === [2023-12-02 08:31:54,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:54,735 INFO L85 PathProgramCache]: Analyzing trace with hash -926548352, now seen corresponding path program 1 times [2023-12-02 08:31:54,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:54,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006329360] [2023-12-02 08:31:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:54,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:56,120 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 08:31:56,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:56,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006329360] [2023-12-02 08:31:56,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006329360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:56,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:31:56,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 08:31:56,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841586273] [2023-12-02 08:31:56,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:56,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 08:31:56,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:56,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 08:31:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:31:56,125 INFO L87 Difference]: Start difference. First operand 421831 states and 864435 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 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 08:32:06,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:32:06,249 INFO L93 Difference]: Finished difference Result 421830 states and 864434 transitions. [2023-12-02 08:32:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 08:32:06,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2023-12-02 08:32:06,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:32:07,433 INFO L225 Difference]: With dead ends: 421830 [2023-12-02 08:32:07,433 INFO L226 Difference]: Without dead ends: 421830 [2023-12-02 08:32:07,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 08:32:07,435 INFO L413 NwaCegarLoop]: 2314 mSDtfsCounter, 3 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:32:07,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5866 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-12-02 08:32:08,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421830 states. [2023-12-02 08:32:16,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421830 to 421830. [2023-12-02 08:32:16,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421830 states, 420985 states have (on average 2.0533605710417238) internal successors, (864434), 421829 states have internal predecessors, (864434), 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 08:32:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421830 states to 421830 states and 864434 transitions. [2023-12-02 08:32:18,662 INFO L78 Accepts]: Start accepts. Automaton has 421830 states and 864434 transitions. Word has length 98 [2023-12-02 08:32:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:32:18,662 INFO L495 AbstractCegarLoop]: Abstraction has 421830 states and 864434 transitions. [2023-12-02 08:32:18,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 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 08:32:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 421830 states and 864434 transitions. [2023-12-02 08:32:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 08:32:18,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:32:18,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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 08:32:18,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 08:32:18,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONDATA_RACE, StealerErr1ASSERT_VIOLATIONDATA_RACE, StealerErr2ASSERT_VIOLATIONDATA_RACE, StealerErr3ASSERT_VIOLATIONDATA_RACE (and 275 more)] === [2023-12-02 08:32:18,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:32:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash -531652095, now seen corresponding path program 1 times [2023-12-02 08:32:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:32:18,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949310777] [2023-12-02 08:32:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:32:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:32:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:32:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 08:32:18,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:32:18,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949310777] [2023-12-02 08:32:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949310777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:32:18,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:32:18,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:32:18,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205414663] [2023-12-02 08:32:18,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:32:18,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:32:18,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:32:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:32:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:32:18,871 INFO L87 Difference]: Start difference. First operand 421830 states and 864434 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 08:32:28,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:32:28,910 INFO L93 Difference]: Finished difference Result 820757 states and 1685848 transitions. [2023-12-02 08:32:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:32:28,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 104 [2023-12-02 08:32:28,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:32:31,430 INFO L225 Difference]: With dead ends: 820757 [2023-12-02 08:32:31,430 INFO L226 Difference]: Without dead ends: 820757 [2023-12-02 08:32:31,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 08:32:31,431 INFO L413 NwaCegarLoop]: 2283 mSDtfsCounter, 2269 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:32:31,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2269 Valid, 4544 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 08:32:33,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820757 states. [2023-12-02 08:32:43,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820757 to 414091. [2023-12-02 08:32:43,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414091 states, 413347 states have (on average 2.0575618064241423) internal successors, (850487), 414090 states have internal predecessors, (850487), 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 08:32:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414091 states to 414091 states and 850487 transitions. [2023-12-02 08:32:45,241 INFO L78 Accepts]: Start accepts. Automaton has 414091 states and 850487 transitions. Word has length 104 [2023-12-02 08:32:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:32:45,241 INFO L495 AbstractCegarLoop]: Abstraction has 414091 states and 850487 transitions. [2023-12-02 08:32:45,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 08:32:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 414091 states and 850487 transitions. [2023-12-02 08:32:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-02 08:32:45,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:32:45,245 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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, 1, 1, 1] [2023-12-02 08:32:45,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 08:32:45,245 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONDATA_RACE, StealerErr1ASSERT_VIOLATIONDATA_RACE, StealerErr2ASSERT_VIOLATIONDATA_RACE, StealerErr3ASSERT_VIOLATIONDATA_RACE (and 275 more)] === [2023-12-02 08:32:45,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:32:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash -686131786, now seen corresponding path program 1 times [2023-12-02 08:32:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:32:45,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838036882] [2023-12-02 08:32:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:32:45,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:32:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:32:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 08:32:45,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:32:45,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838036882] [2023-12-02 08:32:45,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838036882] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:32:45,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185405880] [2023-12-02 08:32:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:32:45,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:32:45,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:32:45,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:32:45,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33415f4c-8ca6-4012-b91c-cbfde89d3daa/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:32:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:32:45,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:32:45,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:32:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 08:32:45,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:32:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 08:32:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185405880] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:32:45,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1898360261] [2023-12-02 08:32:45,967 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 08:32:45,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:32:45,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-12-02 08:32:45,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251970355] [2023-12-02 08:32:45,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:32:45,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 08:32:45,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:32:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 08:32:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-02 08:32:45,973 INFO L87 Difference]: Start difference. First operand 414091 states and 850487 transitions. Second operand has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 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 08:33:01,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:33:01,096 INFO L93 Difference]: Finished difference Result 820776 states and 1685867 transitions. [2023-12-02 08:33:01,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 08:33:01,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 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 121 [2023-12-02 08:33:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:33:03,811 INFO L225 Difference]: With dead ends: 820776 [2023-12-02 08:33:03,811 INFO L226 Difference]: Without dead ends: 820776 [2023-12-02 08:33:03,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-12-02 08:33:03,813 INFO L413 NwaCegarLoop]: 2282 mSDtfsCounter, 11268 mSDsluCounter, 7342 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11268 SdHoareTripleChecker+Valid, 9624 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-02 08:33:03,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11268 Valid, 9624 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-02 08:33:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820776 states. [2023-12-02 08:33:16,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820776 to 414125. [2023-12-02 08:33:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414125 states, 413381 states have (on average 2.0574748234679388) internal successors, (850521), 414124 states have internal predecessors, (850521), 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)