./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-local-value-dynamic.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_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/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_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-local-value-dynamic.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/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_4b58751f-a06f-400a-a8fc-73ac5e2635c0/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 3caa370bc4a9ea898dee4a53f59af98bda6485e94dce02a9353a40e265634044 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:54,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:54,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:46:54,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:54,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:54,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:54,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:54,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:54,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:54,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:54,265 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:54,266 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:54,267 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:54,267 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:54,268 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:54,268 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:54,269 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:54,269 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:54,270 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:54,271 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:54,271 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:54,272 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:54,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:54,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:46:54,274 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:46:54,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:54,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:46:54,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:54,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:46:54,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:54,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:46:54,278 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:46:54,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:46:54,279 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:46:54,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:46:54,280 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:54,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:54,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:54,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:54,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:54,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:54,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:46:54,283 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:54,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:54,284 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:46:54,285 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:54,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:54,285 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_4b58751f-a06f-400a-a8fc-73ac5e2635c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3caa370bc4a9ea898dee4a53f59af98bda6485e94dce02a9353a40e265634044 [2023-11-12 00:46:54,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:54,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:54,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:54,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:54,613 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:54,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-race-challenges/thread-local-value-dynamic.i [2023-11-12 00:46:57,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:58,202 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:58,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/sv-benchmarks/c/pthread-race-challenges/thread-local-value-dynamic.i [2023-11-12 00:46:58,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/data/44e8dac0a/0223d9a2a0ed4898810867d52c1779d4/FLAGbbc465c0e [2023-11-12 00:46:58,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/data/44e8dac0a/0223d9a2a0ed4898810867d52c1779d4 [2023-11-12 00:46:58,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:58,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:58,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:58,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:58,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:58,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378ade1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58, skipping insertion in model container [2023-11-12 00:46:58,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:58,537 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:46:58,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:58,928 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:58,947 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:46:58,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:59,067 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:59,077 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:46:59,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59 WrapperNode [2023-11-12 00:46:59,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:59,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:59,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:46:59,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:46:59,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,161 INFO L138 Inliner]: procedures = 274, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 150 [2023-11-12 00:46:59,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:59,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:46:59,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:46:59,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:46:59,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:46:59,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:46:59,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:46:59,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:46:59,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (1/1) ... [2023-11-12 00:46:59,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:59,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:59,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:46:59,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b58751f-a06f-400a-a8fc-73ac5e2635c0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:46:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:46:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:46:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:46:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:46:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:46:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:46:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:46:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:46:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:46:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-12 00:46:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-12 00:46:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:46:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:46:59,372 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 00:46:59,640 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:46:59,645 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:00,067 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:00,085 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:00,085 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:47:00,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:00 BoogieIcfgContainer [2023-11-12 00:47:00,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:00,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:00,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:00,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:00,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:46:58" (1/3) ... [2023-11-12 00:47:00,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b206ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:00, skipping insertion in model container [2023-11-12 00:47:00,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:59" (2/3) ... [2023-11-12 00:47:00,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b206ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:00, skipping insertion in model container [2023-11-12 00:47:00,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:00" (3/3) ... [2023-11-12 00:47:00,105 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-local-value-dynamic.i [2023-11-12 00:47:00,121 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:47:00,134 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:00,134 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-12 00:47:00,134 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:47:00,316 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 00:47:00,362 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:47:00,378 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 170 transitions, 347 flow [2023-11-12 00:47:00,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 170 transitions, 347 flow [2023-11-12 00:47:00,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 170 transitions, 347 flow [2023-11-12 00:47:00,493 INFO L124 PetriNetUnfolderBase]: 13/218 cut-off events. [2023-11-12 00:47:00,493 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 00:47:00,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 218 events. 13/218 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 497 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 136. Up to 4 conditions per place. [2023-11-12 00:47:00,511 INFO L119 LiptonReduction]: Number of co-enabled transitions 9020 [2023-11-12 00:47:12,996 INFO L134 LiptonReduction]: Checked pairs total: 41150 [2023-11-12 00:47:12,996 INFO L136 LiptonReduction]: Total number of compositions: 146 [2023-11-12 00:47:13,006 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 61 transitions, 129 flow [2023-11-12 00:47:13,080 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 767 states, 714 states have (on average 2.1736694677871147) internal successors, (1552), 766 states have internal predecessors, (1552), 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 00:47:13,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:13,107 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;@6875e1d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:13,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-12 00:47:13,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 767 states, 714 states have (on average 2.1736694677871147) internal successors, (1552), 766 states have internal predecessors, (1552), 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 00:47:13,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:47:13,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:13,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:13,117 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-12 00:47:13,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:13,122 INFO L85 PathProgramCache]: Analyzing trace with hash -220375076, now seen corresponding path program 1 times [2023-11-12 00:47:13,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:13,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753807647] [2023-11-12 00:47:13,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:13,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:13,828 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 00:47:13,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:13,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753807647] [2023-11-12 00:47:13,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753807647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:13,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:13,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:47:13,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301604272] [2023-11-12 00:47:13,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:13,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:47:13,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:13,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:47:13,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:47:13,873 INFO L87 Difference]: Start difference. First operand has 767 states, 714 states have (on average 2.1736694677871147) internal successors, (1552), 766 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:47:14,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:14,291 INFO L93 Difference]: Finished difference Result 852 states and 1673 transitions. [2023-11-12 00:47:14,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:47:14,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 00:47:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:14,320 INFO L225 Difference]: With dead ends: 852 [2023-11-12 00:47:14,323 INFO L226 Difference]: Without dead ends: 828 [2023-11-12 00:47:14,324 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 00:47:14,327 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:14,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 19 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:47:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-11-12 00:47:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 679. [2023-11-12 00:47:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 662 states have (on average 2.039274924471299) internal successors, (1350), 678 states have internal predecessors, (1350), 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 00:47:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1350 transitions. [2023-11-12 00:47:14,453 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1350 transitions. Word has length 7 [2023-11-12 00:47:14,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:14,454 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 1350 transitions. [2023-11-12 00:47:14,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:47:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1350 transitions. [2023-11-12 00:47:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:47:14,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:14,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:14,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:47:14,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-12 00:47:14,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1771805228, now seen corresponding path program 1 times [2023-11-12 00:47:14,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:14,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240254052] [2023-11-12 00:47:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:14,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:14,854 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 00:47:14,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:14,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240254052] [2023-11-12 00:47:14,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240254052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:14,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:14,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:47:14,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778284525] [2023-11-12 00:47:14,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:14,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:47:14,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:14,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:47:14,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:47:14,860 INFO L87 Difference]: Start difference. First operand 679 states and 1350 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 00:47:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:15,259 INFO L93 Difference]: Finished difference Result 710 states and 1404 transitions. [2023-11-12 00:47:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:47:15,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2023-11-12 00:47:15,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:15,265 INFO L225 Difference]: With dead ends: 710 [2023-11-12 00:47:15,265 INFO L226 Difference]: Without dead ends: 682 [2023-11-12 00:47:15,265 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 [2023-11-12 00:47:15,267 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 42 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:15,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 34 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:47:15,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-12 00:47:15,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 675. [2023-11-12 00:47:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 660 states have (on average 2.0484848484848484) internal successors, (1352), 674 states have internal predecessors, (1352), 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 00:47:15,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1352 transitions. [2023-11-12 00:47:15,298 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1352 transitions. Word has length 14 [2023-11-12 00:47:15,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:15,299 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 1352 transitions. [2023-11-12 00:47:15,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 00:47:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1352 transitions. [2023-11-12 00:47:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:47:15,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:15,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:15,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:47:15,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-12 00:47:15,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash -585853598, now seen corresponding path program 1 times [2023-11-12 00:47:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:15,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260679812] [2023-11-12 00:47:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:15,589 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 00:47:15,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:15,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260679812] [2023-11-12 00:47:15,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260679812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:15,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:15,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:47:15,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651453897] [2023-11-12 00:47:15,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:15,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:47:15,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:15,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:47:15,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:47:15,600 INFO L87 Difference]: Start difference. First operand 675 states and 1352 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 00:47:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:15,915 INFO L93 Difference]: Finished difference Result 644 states and 1291 transitions. [2023-11-12 00:47:15,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:47:15,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 00:47:15,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:15,920 INFO L225 Difference]: With dead ends: 644 [2023-11-12 00:47:15,920 INFO L226 Difference]: Without dead ends: 644 [2023-11-12 00:47:15,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:47:15,922 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 42 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:15,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 51 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:47:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-11-12 00:47:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2023-11-12 00:47:15,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 632 states have (on average 2.0427215189873418) internal successors, (1291), 643 states have internal predecessors, (1291), 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 00:47:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1291 transitions. [2023-11-12 00:47:15,948 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1291 transitions. Word has length 16 [2023-11-12 00:47:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:15,949 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 1291 transitions. [2023-11-12 00:47:15,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 00:47:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1291 transitions. [2023-11-12 00:47:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:47:15,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:15,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:15,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:47:15,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-12 00:47:15,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:15,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1352512886, now seen corresponding path program 1 times [2023-11-12 00:47:15,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:15,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941118775] [2023-11-12 00:47:15,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:15,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:16,047 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 00:47:16,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:16,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941118775] [2023-11-12 00:47:16,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941118775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:16,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:16,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:47:16,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162488531] [2023-11-12 00:47:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:16,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:47:16,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:47:16,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:47:16,051 INFO L87 Difference]: Start difference. First operand 644 states and 1291 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 00:47:16,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:16,154 INFO L93 Difference]: Finished difference Result 861 states and 1728 transitions. [2023-11-12 00:47:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:47:16,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2023-11-12 00:47:16,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:16,160 INFO L225 Difference]: With dead ends: 861 [2023-11-12 00:47:16,161 INFO L226 Difference]: Without dead ends: 840 [2023-11-12 00:47:16,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:47:16,168 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 65 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:16,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 183 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:47:16,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2023-11-12 00:47:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 685. [2023-11-12 00:47:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 673 states have (on average 2.052005943536404) internal successors, (1381), 684 states have internal predecessors, (1381), 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 00:47:16,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1381 transitions. [2023-11-12 00:47:16,198 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1381 transitions. Word has length 18 [2023-11-12 00:47:16,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:16,199 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 1381 transitions. [2023-11-12 00:47:16,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 00:47:16,199 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1381 transitions. [2023-11-12 00:47:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:47:16,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:16,201 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-12 00:47:16,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:47:16,202 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-12 00:47:16,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:16,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1024409331, now seen corresponding path program 1 times [2023-11-12 00:47:16,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:16,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241275662] [2023-11-12 00:47:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:16,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:16,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:47:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:16,266 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:47:16,266 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:47:16,267 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-11-12 00:47:16,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2023-11-12 00:47:16,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2023-11-12 00:47:16,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2023-11-12 00:47:16,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2023-11-12 00:47:16,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2023-11-12 00:47:16,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2023-11-12 00:47:16,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2023-11-12 00:47:16,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2023-11-12 00:47:16,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2023-11-12 00:47:16,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2023-11-12 00:47:16,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2023-11-12 00:47:16,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2023-11-12 00:47:16,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2023-11-12 00:47:16,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2023-11-12 00:47:16,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2023-11-12 00:47:16,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2023-11-12 00:47:16,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:47:16,275 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:47:16,277 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 00:47:16,277 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 00:47:16,329 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 00:47:16,339 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:47:16,340 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 254 transitions, 524 flow [2023-11-12 00:47:16,340 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 254 transitions, 524 flow [2023-11-12 00:47:16,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 254 transitions, 524 flow [2023-11-12 00:47:16,513 INFO L124 PetriNetUnfolderBase]: 25/401 cut-off events. [2023-11-12 00:47:16,514 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-12 00:47:16,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 401 events. 25/401 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1283 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2023-11-12 00:47:16,554 INFO L119 LiptonReduction]: Number of co-enabled transitions 33620 [2023-11-12 00:47:22,455 INFO L134 LiptonReduction]: Checked pairs total: 192076 [2023-11-12 00:47:22,455 INFO L136 LiptonReduction]: Total number of compositions: 191 [2023-11-12 00:47:22,457 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 107 transitions, 230 flow [2023-11-12 00:47:24,225 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34323 states, 33913 states have (on average 3.1170347654291866) internal successors, (105708), 34322 states have internal predecessors, (105708), 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 00:47:24,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:24,228 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;@6875e1d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:24,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-12 00:47:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 34323 states, 33913 states have (on average 3.1170347654291866) internal successors, (105708), 34322 states have internal predecessors, (105708), 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 00:47:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:47:24,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:24,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:24,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-12 00:47:24,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:24,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1355023862, now seen corresponding path program 1 times [2023-11-12 00:47:24,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:24,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820127522] [2023-11-12 00:47:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:24,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:24,687 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 00:47:24,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:24,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820127522] [2023-11-12 00:47:24,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820127522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:24,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:24,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:47:24,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018344444] [2023-11-12 00:47:24,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:24,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:47:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:24,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:47:24,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:47:24,742 INFO L87 Difference]: Start difference. First operand has 34323 states, 33913 states have (on average 3.1170347654291866) internal successors, (105708), 34322 states have internal predecessors, (105708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:47:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:26,553 INFO L93 Difference]: Finished difference Result 58798 states and 175339 transitions. [2023-11-12 00:47:26,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:47:26,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 00:47:26,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:27,126 INFO L225 Difference]: With dead ends: 58798 [2023-11-12 00:47:27,126 INFO L226 Difference]: Without dead ends: 58676 [2023-11-12 00:47:27,126 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 00:47:27,127 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 331 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:27,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 143 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:47:27,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58676 states. [2023-11-12 00:47:29,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58676 to 41410. [2023-11-12 00:47:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41410 states, 41049 states have (on average 3.0136178713245148) internal successors, (123706), 41409 states have internal predecessors, (123706), 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 00:47:30,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41410 states to 41410 states and 123706 transitions. [2023-11-12 00:47:30,031 INFO L78 Accepts]: Start accepts. Automaton has 41410 states and 123706 transitions. Word has length 7 [2023-11-12 00:47:30,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:30,032 INFO L495 AbstractCegarLoop]: Abstraction has 41410 states and 123706 transitions. [2023-11-12 00:47:30,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:47:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 41410 states and 123706 transitions. [2023-11-12 00:47:30,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:47:30,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:30,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:30,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:47:30,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-12 00:47:30,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:30,037 INFO L85 PathProgramCache]: Analyzing trace with hash -837706885, now seen corresponding path program 1 times [2023-11-12 00:47:30,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:30,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473445329] [2023-11-12 00:47:30,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:30,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:30,415 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 00:47:30,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:30,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473445329] [2023-11-12 00:47:30,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473445329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:30,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:30,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:47:30,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893066064] [2023-11-12 00:47:30,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:30,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:47:30,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:30,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:47:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:47:30,420 INFO L87 Difference]: Start difference. First operand 41410 states and 123706 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 00:47:31,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:31,564 INFO L93 Difference]: Finished difference Result 44542 states and 132432 transitions. [2023-11-12 00:47:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:47:31,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2023-11-12 00:47:31,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:31,805 INFO L225 Difference]: With dead ends: 44542 [2023-11-12 00:47:31,806 INFO L226 Difference]: Without dead ends: 44403 [2023-11-12 00:47:31,806 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 [2023-11-12 00:47:31,807 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 193 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:31,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 240 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:47:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44403 states. [2023-11-12 00:47:33,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44403 to 43683. [2023-11-12 00:47:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43683 states, 43338 states have (on average 3.013360099681573) internal successors, (130593), 43682 states have internal predecessors, (130593), 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 00:47:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43683 states to 43683 states and 130593 transitions. [2023-11-12 00:47:33,872 INFO L78 Accepts]: Start accepts. Automaton has 43683 states and 130593 transitions. Word has length 14 [2023-11-12 00:47:33,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:33,872 INFO L495 AbstractCegarLoop]: Abstraction has 43683 states and 130593 transitions. [2023-11-12 00:47:33,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 00:47:33,873 INFO L276 IsEmpty]: Start isEmpty. Operand 43683 states and 130593 transitions. [2023-11-12 00:47:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:47:33,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:33,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:33,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:47:33,874 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-12 00:47:33,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:33,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1932433301, now seen corresponding path program 1 times [2023-11-12 00:47:33,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:33,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106703169] [2023-11-12 00:47:33,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:33,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:33,947 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 00:47:33,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106703169] [2023-11-12 00:47:33,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106703169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:33,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:33,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:47:33,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182861827] [2023-11-12 00:47:33,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:33,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:47:33,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:33,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:47:33,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:47:33,949 INFO L87 Difference]: Start difference. First operand 43683 states and 130593 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 00:47:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:34,329 INFO L93 Difference]: Finished difference Result 44680 states and 133580 transitions. [2023-11-12 00:47:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:47:34,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2023-11-12 00:47:34,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:34,543 INFO L225 Difference]: With dead ends: 44680 [2023-11-12 00:47:34,543 INFO L226 Difference]: Without dead ends: 44680 [2023-11-12 00:47:34,548 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 00:47:34,550 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 66 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:34,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 159 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:47:34,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44680 states. [2023-11-12 00:47:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44680 to 44680. [2023-11-12 00:47:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44680 states, 44335 states have (on average 3.0129694372392017) internal successors, (133580), 44679 states have internal predecessors, (133580), 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 00:47:36,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44680 states to 44680 states and 133580 transitions. [2023-11-12 00:47:36,233 INFO L78 Accepts]: Start accepts. Automaton has 44680 states and 133580 transitions. Word has length 14 [2023-11-12 00:47:36,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:36,233 INFO L495 AbstractCegarLoop]: Abstraction has 44680 states and 133580 transitions. [2023-11-12 00:47:36,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 00:47:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 44680 states and 133580 transitions. [2023-11-12 00:47:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:47:36,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:36,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:36,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:47:36,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-12 00:47:36,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:36,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1642255308, now seen corresponding path program 1 times [2023-11-12 00:47:36,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:36,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109816512] [2023-11-12 00:47:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:36,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:36,294 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 00:47:36,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:36,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109816512] [2023-11-12 00:47:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109816512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:36,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:36,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:47:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943223304] [2023-11-12 00:47:36,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:36,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:47:36,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:47:36,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:47:36,297 INFO L87 Difference]: Start difference. First operand 44680 states and 133580 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 00:47:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:36,773 INFO L93 Difference]: Finished difference Result 50321 states and 148742 transitions. [2023-11-12 00:47:36,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:47:36,774 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 00:47:36,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:37,492 INFO L225 Difference]: With dead ends: 50321 [2023-11-12 00:47:37,493 INFO L226 Difference]: Without dead ends: 50170 [2023-11-12 00:47:37,493 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 00:47:37,494 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 88 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:37,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 138 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:47:37,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50170 states. [2023-11-12 00:47:38,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50170 to 43437. [2023-11-12 00:47:38,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43437 states, 43182 states have (on average 2.887985734796906) internal successors, (124709), 43436 states have internal predecessors, (124709), 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 00:47:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43437 states to 43437 states and 124709 transitions. [2023-11-12 00:47:38,825 INFO L78 Accepts]: Start accepts. Automaton has 43437 states and 124709 transitions. Word has length 16 [2023-11-12 00:47:38,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:38,826 INFO L495 AbstractCegarLoop]: Abstraction has 43437 states and 124709 transitions. [2023-11-12 00:47:38,826 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 00:47:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 43437 states and 124709 transitions. [2023-11-12 00:47:38,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:47:38,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:38,828 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] [2023-11-12 00:47:38,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:47:38,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-12 00:47:38,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:38,830 INFO L85 PathProgramCache]: Analyzing trace with hash 213145184, now seen corresponding path program 1 times [2023-11-12 00:47:38,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:38,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975885791] [2023-11-12 00:47:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:38,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:39,210 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 00:47:39,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:39,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975885791] [2023-11-12 00:47:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975885791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:39,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:39,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:47:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786973123] [2023-11-12 00:47:39,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:39,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:47:39,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:47:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:47:39,213 INFO L87 Difference]: Start difference. First operand 43437 states and 124709 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 00:47:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:40,436 INFO L93 Difference]: Finished difference Result 52310 states and 151120 transitions. [2023-11-12 00:47:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:47:40,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2023-11-12 00:47:40,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:40,665 INFO L225 Difference]: With dead ends: 52310 [2023-11-12 00:47:40,665 INFO L226 Difference]: Without dead ends: 52310 [2023-11-12 00:47:40,666 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 [2023-11-12 00:47:40,667 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 171 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:40,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 176 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 00:47:41,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52310 states.