./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/sigma.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/sigma.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX --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 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:38,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:38,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:48:38,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:38,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:38,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:38,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:38,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:38,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:38,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:38,299 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:38,300 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:38,300 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:38,302 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:38,303 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:38,303 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:38,304 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:38,304 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:38,305 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:38,305 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:38,306 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:38,307 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:38,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:38,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:38,309 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:38,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:38,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:38,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:38,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:38,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:38,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:38,313 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:48:38,313 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:48:38,314 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:38,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:38,314 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:38,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:38,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:38,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:38,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:38,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:38,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:38,318 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:38,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:38,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:38,319 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:38,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:38,320 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_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 [2023-11-12 00:48:38,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:38,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:38,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:38,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:38,726 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:38,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread/sigma.i [2023-11-12 00:48:41,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:42,207 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:42,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/sv-benchmarks/c/pthread/sigma.i [2023-11-12 00:48:42,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/data/b8969647b/65958fab9ed04fe9a987d733b187467f/FLAGe595edc62 [2023-11-12 00:48:42,244 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/data/b8969647b/65958fab9ed04fe9a987d733b187467f [2023-11-12 00:48:42,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:42,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:42,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:42,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:42,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:42,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:42" (1/1) ... [2023-11-12 00:48:42,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22971843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:42, skipping insertion in model container [2023-11-12 00:48:42,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:42" (1/1) ... [2023-11-12 00:48:42,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:43,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:43,092 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:43,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:43,281 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:43,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43 WrapperNode [2023-11-12 00:48:43,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:43,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:43,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:43,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:43,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,345 INFO L138 Inliner]: procedures = 323, calls = 32, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 156 [2023-11-12 00:48:43,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:43,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:43,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:43,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:43,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:43,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:43,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:43,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:43,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (1/1) ... [2023-11-12 00:48:43,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:43,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:43,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:43,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304baaf4-571e-497e-b836-a749b0a057ac/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:48:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:43,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:48:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:48:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:43,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-12 00:48:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-12 00:48:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:43,494 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:48:43,646 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:43,649 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:44,051 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:44,062 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:44,062 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:48:44,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:44 BoogieIcfgContainer [2023-11-12 00:48:44,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:44,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:44,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:44,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:44,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:42" (1/3) ... [2023-11-12 00:48:44,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4abdec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:44, skipping insertion in model container [2023-11-12 00:48:44,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:43" (2/3) ... [2023-11-12 00:48:44,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4abdec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:44, skipping insertion in model container [2023-11-12 00:48:44,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:44" (3/3) ... [2023-11-12 00:48:44,075 INFO L112 eAbstractionObserver]: Analyzing ICFG sigma.i [2023-11-12 00:48:44,084 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:48:44,096 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:44,096 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-12 00:48:44,097 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:48:44,196 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 00:48:44,255 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:48:44,285 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 201 transitions, 409 flow [2023-11-12 00:48:44,290 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 201 transitions, 409 flow [2023-11-12 00:48:44,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 201 transitions, 409 flow [2023-11-12 00:48:44,438 INFO L124 PetriNetUnfolderBase]: 15/295 cut-off events. [2023-11-12 00:48:44,439 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 00:48:44,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 295 events. 15/295 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 696 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 169. Up to 4 conditions per place. [2023-11-12 00:48:44,453 INFO L119 LiptonReduction]: Number of co-enabled transitions 3636 [2023-11-12 00:48:57,805 INFO L134 LiptonReduction]: Checked pairs total: 20613 [2023-11-12 00:48:57,805 INFO L136 LiptonReduction]: Total number of compositions: 202 [2023-11-12 00:48:57,816 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 68 transitions, 143 flow [2023-11-12 00:48:57,904 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 649 states, 576 states have (on average 2.0885416666666665) internal successors, (1203), 648 states have internal predecessors, (1203), 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) [2023-11-12 00:48:57,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:57,938 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;@39ab0f18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:57,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-12 00:48:57,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 649 states, 576 states have (on average 2.0885416666666665) internal successors, (1203), 648 states have internal predecessors, (1203), 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) [2023-11-12 00:48:57,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 00:48:57,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:57,948 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 00:48:57,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 00:48:57,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash 693, now seen corresponding path program 1 times [2023-11-12 00:48:57,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:57,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24327945] [2023-11-12 00:48:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:57,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:58,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:58,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24327945] [2023-11-12 00:48:58,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24327945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:58,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:58,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 00:48:58,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428887359] [2023-11-12 00:48:58,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:58,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:48:58,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:58,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:48:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:48:58,148 INFO L87 Difference]: Start difference. First operand has 649 states, 576 states have (on average 2.0885416666666665) internal successors, (1203), 648 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:48:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:58,219 INFO L93 Difference]: Finished difference Result 519 states and 961 transitions. [2023-11-12 00:48:58,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:48:58,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2023-11-12 00:48:58,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:58,239 INFO L225 Difference]: With dead ends: 519 [2023-11-12 00:48:58,239 INFO L226 Difference]: Without dead ends: 517 [2023-11-12 00:48:58,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:48:58,244 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:58,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:48:58,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-12 00:48:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2023-11-12 00:48:58,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 490 states have (on average 1.9551020408163264) internal successors, (958), 516 states have internal predecessors, (958), 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) [2023-11-12 00:48:58,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 958 transitions. [2023-11-12 00:48:58,321 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 958 transitions. Word has length 1 [2023-11-12 00:48:58,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:58,321 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 958 transitions. [2023-11-12 00:48:58,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-12 00:48:58,322 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 958 transitions. [2023-11-12 00:48:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:48:58,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:58,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:48:58,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:58,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 00:48:58,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:58,324 INFO L85 PathProgramCache]: Analyzing trace with hash 664192882, now seen corresponding path program 1 times [2023-11-12 00:48:58,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:58,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274877611] [2023-11-12 00:48:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:58,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:58,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:58,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274877611] [2023-11-12 00:48:58,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274877611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:58,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:58,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:48:58,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526376572] [2023-11-12 00:48:58,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:58,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:58,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:58,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:58,539 INFO L87 Difference]: Start difference. First operand 517 states and 958 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:58,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:58,636 INFO L93 Difference]: Finished difference Result 524 states and 972 transitions. [2023-11-12 00:48:58,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:58,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-12 00:48:58,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:58,643 INFO L225 Difference]: With dead ends: 524 [2023-11-12 00:48:58,643 INFO L226 Difference]: Without dead ends: 524 [2023-11-12 00:48:58,643 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 [2023-11-12 00:48:58,646 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 10 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:58,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 72 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-12 00:48:58,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-11-12 00:48:58,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 498 states have (on average 1.9518072289156627) internal successors, (972), 523 states have internal predecessors, (972), 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) [2023-11-12 00:48:58,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 972 transitions. [2023-11-12 00:48:58,683 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 972 transitions. Word has length 5 [2023-11-12 00:48:58,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:58,683 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 972 transitions. [2023-11-12 00:48:58,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:58,688 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 972 transitions. [2023-11-12 00:48:58,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:48:58,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:58,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:58,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:48:58,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 00:48:58,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:58,691 INFO L85 PathProgramCache]: Analyzing trace with hash -495159291, now seen corresponding path program 1 times [2023-11-12 00:48:58,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:58,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785678190] [2023-11-12 00:48:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:58,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:58,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:58,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785678190] [2023-11-12 00:48:58,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785678190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:58,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:58,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:48:58,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941433881] [2023-11-12 00:48:58,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:58,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:58,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:58,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:58,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:58,879 INFO L87 Difference]: Start difference. First operand 524 states and 972 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:58,962 INFO L93 Difference]: Finished difference Result 524 states and 971 transitions. [2023-11-12 00:48:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:58,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:48:58,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:58,966 INFO L225 Difference]: With dead ends: 524 [2023-11-12 00:48:58,966 INFO L226 Difference]: Without dead ends: 524 [2023-11-12 00:48:58,967 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 [2023-11-12 00:48:58,968 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:58,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-12 00:48:58,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-11-12 00:48:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 498 states have (on average 1.9497991967871486) internal successors, (971), 523 states have internal predecessors, (971), 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) [2023-11-12 00:48:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 971 transitions. [2023-11-12 00:48:58,986 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 971 transitions. Word has length 8 [2023-11-12 00:48:58,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:58,986 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 971 transitions. [2023-11-12 00:48:58,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 971 transitions. [2023-11-12 00:48:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:48:58,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:58,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:58,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:48:58,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 00:48:58,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:58,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1986937828, now seen corresponding path program 1 times [2023-11-12 00:48:58,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:58,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220090419] [2023-11-12 00:48:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:58,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:59,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:59,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220090419] [2023-11-12 00:48:59,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220090419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:59,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:59,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:48:59,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213596333] [2023-11-12 00:48:59,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:59,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:48:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:59,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:48:59,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:48:59,565 INFO L87 Difference]: Start difference. First operand 524 states and 971 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-11-12 00:48:59,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:59,915 INFO L93 Difference]: Finished difference Result 638 states and 1158 transitions. [2023-11-12 00:48:59,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:48:59,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2023-11-12 00:48:59,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:59,920 INFO L225 Difference]: With dead ends: 638 [2023-11-12 00:48:59,920 INFO L226 Difference]: Without dead ends: 638 [2023-11-12 00:48:59,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:48:59,922 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 66 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:59,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 27 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:48:59,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-12 00:48:59,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 558. [2023-11-12 00:48:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 536 states have (on average 1.9272388059701493) internal successors, (1033), 557 states have internal predecessors, (1033), 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) [2023-11-12 00:48:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1033 transitions. [2023-11-12 00:48:59,942 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1033 transitions. Word has length 11 [2023-11-12 00:48:59,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:59,942 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 1033 transitions. [2023-11-12 00:48:59,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-11-12 00:48:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1033 transitions. [2023-11-12 00:48:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:48:59,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:59,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:59,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:48:59,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 00:48:59,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1231443765, now seen corresponding path program 1 times [2023-11-12 00:48:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:59,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337866635] [2023-11-12 00:48:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:00,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337866635] [2023-11-12 00:49:00,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337866635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:00,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:00,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:00,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480473236] [2023-11-12 00:49:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:00,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:00,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:00,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:00,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:00,031 INFO L87 Difference]: Start difference. First operand 558 states and 1033 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-12 00:49:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:00,108 INFO L93 Difference]: Finished difference Result 648 states and 1188 transitions. [2023-11-12 00:49:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-11-12 00:49:00,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:00,114 INFO L225 Difference]: With dead ends: 648 [2023-11-12 00:49:00,114 INFO L226 Difference]: Without dead ends: 648 [2023-11-12 00:49:00,115 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 [2023-11-12 00:49:00,116 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 49 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:00,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 90 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-11-12 00:49:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 538. [2023-11-12 00:49:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 521 states have (on average 1.9021113243761996) internal successors, (991), 537 states have internal predecessors, (991), 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) [2023-11-12 00:49:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 991 transitions. [2023-11-12 00:49:00,138 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 991 transitions. Word has length 16 [2023-11-12 00:49:00,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:00,138 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 991 transitions. [2023-11-12 00:49:00,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-12 00:49:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 991 transitions. [2023-11-12 00:49:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:49:00,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:00,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:00,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:49:00,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 00:49:00,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash -41054939, now seen corresponding path program 1 times [2023-11-12 00:49:00,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:00,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196291112] [2023-11-12 00:49:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:00,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:49:00,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:49:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:49:00,284 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:49:00,284 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:49:00,286 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-11-12 00:49:00,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-12 00:49:00,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-12 00:49:00,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-12 00:49:00,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-12 00:49:00,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-12 00:49:00,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-12 00:49:00,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-12 00:49:00,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-12 00:49:00,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-12 00:49:00,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-12 00:49:00,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-12 00:49:00,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-12 00:49:00,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-12 00:49:00,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-12 00:49:00,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-12 00:49:00,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-12 00:49:00,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-12 00:49:00,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 24 remaining) [2023-11-12 00:49:00,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-12 00:49:00,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-12 00:49:00,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-12 00:49:00,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-12 00:49:00,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-12 00:49:00,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:49:00,297 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 00:49:00,304 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:49:00,304 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:49:00,343 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,344 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,345 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,345 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,345 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,346 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,346 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-12 00:49:00,347 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-12 00:49:00,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:49:00 BasicIcfg [2023-11-12 00:49:00,354 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:49:00,355 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:49:00,355 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:49:00,355 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:49:00,356 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:44" (3/4) ... [2023-11-12 00:49:00,357 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:49:00,359 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:49:00,359 INFO L158 Benchmark]: Toolchain (without parser) took 18110.83ms. Allocated memory was 132.1MB in the beginning and 209.7MB in the end (delta: 77.6MB). Free memory was 89.6MB in the beginning and 83.6MB in the end (delta: 6.0MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2023-11-12 00:49:00,360 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:49:00,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1031.62ms. Allocated memory is still 132.1MB. Free memory was 89.3MB in the beginning and 96.7MB in the end (delta: -7.5MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2023-11-12 00:49:00,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.54ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 93.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:49:00,361 INFO L158 Benchmark]: Boogie Preprocessor took 44.84ms. Allocated memory is still 132.1MB. Free memory was 93.8MB in the beginning and 91.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:49:00,361 INFO L158 Benchmark]: RCFGBuilder took 673.45ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 69.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:49:00,362 INFO L158 Benchmark]: TraceAbstraction took 16286.53ms. Allocated memory was 132.1MB in the beginning and 209.7MB in the end (delta: 77.6MB). Free memory was 68.8MB in the beginning and 83.6MB in the end (delta: -14.8MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2023-11-12 00:49:00,362 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 209.7MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:49:00,364 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1031.62ms. Allocated memory is still 132.1MB. Free memory was 89.3MB in the beginning and 96.7MB in the end (delta: -7.5MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.54ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 93.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.84ms. Allocated memory is still 132.1MB. Free memory was 93.8MB in the beginning and 91.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 673.45ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 69.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 16286.53ms. Allocated memory was 132.1MB in the beginning and 209.7MB in the end (delta: 77.6MB). Free memory was 68.8MB in the beginning and 83.6MB in the end (delta: -14.8MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 209.7MB. Free memory is still 83.6MB. 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: unknown boogie variable #t~mem13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5s, 195 PlacesBefore, 69 PlacesAfterwards, 201 TransitionsBefore, 68 TransitionsAfterwards, 3636 CoEnabledTransitionPairs, 8 FixpointIterations, 100 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 17 ConcurrentYvCompositions, 7 ChoiceCompositions, 202 TotalNumberOfCompositions, 20613 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7237, independent: 6466, independent conditional: 0, independent unconditional: 6466, dependent: 727, dependent conditional: 0, dependent unconditional: 727, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2499, independent: 2338, independent conditional: 0, independent unconditional: 2338, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2499, independent: 2303, independent conditional: 0, independent unconditional: 2303, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 196, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4879, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 632, dependent conditional: 0, dependent unconditional: 632, unknown: 4175, unknown conditional: 0, unknown unconditional: 4175] ], Cache Queries: [ total: 7237, independent: 4128, independent conditional: 0, independent unconditional: 4128, dependent: 568, dependent conditional: 0, dependent unconditional: 568, unknown: 2541, unknown conditional: 0, unknown unconditional: 2541] , Statistics on independence cache: Total cache size (in pairs): 534, Positive cache size: 434, Positive conditional cache size: 0, Positive unconditional cache size: 434, Negative cache size: 100, Negative conditional cache size: 0, Negative unconditional cache size: 100, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - 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: 1117]: Data race detected [2023-11-12 00:49:00,396 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,397 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,397 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,397 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,397 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,398 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,398 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-12 00:49:00,398 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-12 00:49:00,419 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,424 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,425 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,425 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,425 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem13 [2023-11-12 00:49:00,425 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-12 00:49:00,426 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post10 could not be translated [2023-11-12 00:49:00,426 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated Data race detected The following path leads to a data race: [L1112] 0 const int SIGMA = 16; [L1113] 0 int *array; [L1114] 0 int array_index=-1; [L1122] 0 int tid, sum; [L1123] 0 pthread_t *t; [L1124] EXPR 0 sizeof(pthread_t) * SIGMA [L1124] 0 t = (pthread_t *)malloc(sizeof(pthread_t) * SIGMA) [L1125] EXPR 0 sizeof(int) * SIGMA [L1125] 0 array = (int *)malloc(sizeof(int) * SIGMA) [L1126] EXPR 0 \read(*t) [L1126] 0 assume_abort_if_not(t) [L1126] CALL 0 assume_abort_if_not(t) [L11] COND FALSE 0 !(!cond) [L1126] RET 0 assume_abort_if_not(t) [L1127] 0 assume_abort_if_not(array) [L1127] CALL 0 assume_abort_if_not(array) [L11] COND FALSE 0 !(!cond) [L1127] RET 0 assume_abort_if_not(array) [L1128] 0 tid=0 VAL [SIGMA=16, array={-2:0}, array_index=-1, t={9:0}, tid=0] [L1128] 0 tid