./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91 --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 fa0ecdfec37b7bd940900ff854c772fdadeb6c6111223868a85a6141c0a777e6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:57:24,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:57:24,635 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-24 23:57:24,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:57:24,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:57:24,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:57:24,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:57:24,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:57:24,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:57:24,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:57:24,667 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:57:24,668 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:57:24,669 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:57:24,669 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:57:24,670 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:57:24,670 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:57:24,671 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:57:24,671 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:57:24,672 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:57:24,673 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:57:24,673 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:57:24,674 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:57:24,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:57:24,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:57:24,675 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:57:24,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:57:24,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:57:24,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:57:24,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:57:24,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:57:24,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:57:24,678 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 23:57:24,678 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:57:24,679 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:57:24,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:57:24,679 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:57:24,679 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:57:24,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:57:24,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:24,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:57:24,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:57:24,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:57:24,681 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:57:24,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:57:24,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:57:24,681 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:57:24,682 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:57:24,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:57:24,682 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_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa0ecdfec37b7bd940900ff854c772fdadeb6c6111223868a85a6141c0a777e6 [2023-11-24 23:57:24,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:57:25,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:57:25,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:57:25,019 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:57:25,019 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:57:25,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-3.i [2023-11-24 23:57:28,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:57:28,449 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:57:28,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-3.i [2023-11-24 23:57:28,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/data/6dd92a794/b156ff5734124177a1ce7bdd1d81977b/FLAG3a8e422b4 [2023-11-24 23:57:28,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/data/6dd92a794/b156ff5734124177a1ce7bdd1d81977b [2023-11-24 23:57:28,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:57:28,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:57:28,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:28,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:57:28,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:57:28,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:28" (1/1) ... [2023-11-24 23:57:28,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d1913e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:28, skipping insertion in model container [2023-11-24 23:57:28,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:28" (1/1) ... [2023-11-24 23:57:28,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:57:28,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:28,937 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:57:29,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:29,073 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:57:29,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29 WrapperNode [2023-11-24 23:57:29,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:29,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:29,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:57:29,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:57:29,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,153 INFO L138 Inliner]: procedures = 158, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2023-11-24 23:57:29,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:29,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:57:29,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:57:29,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:57:29,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:57:29,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:57:29,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:57:29,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:57:29,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (1/1) ... [2023-11-24 23:57:29,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:29,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:29,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:57:29,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d04a4d5-4366-425f-9486-6e9be298409c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:57:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:57:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:57:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 23:57:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:57:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:57:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:57:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:57:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-24 23:57:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-24 23:57:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 23:57:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:57:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:57:29,343 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:57:29,473 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:57:29,475 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:57:29,673 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:57:29,691 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:57:29,691 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:57:29,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:29 BoogieIcfgContainer [2023-11-24 23:57:29,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:57:29,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:57:29,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:57:29,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:57:29,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:57:28" (1/3) ... [2023-11-24 23:57:29,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547f6461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:29, skipping insertion in model container [2023-11-24 23:57:29,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:29" (2/3) ... [2023-11-24 23:57:29,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547f6461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:29, skipping insertion in model container [2023-11-24 23:57:29,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:29" (3/3) ... [2023-11-24 23:57:29,701 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race-3.i [2023-11-24 23:57:29,710 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:57:29,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:57:29,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:57:29,721 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:57:29,781 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-24 23:57:29,813 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 95 transitions, 204 flow [2023-11-24 23:57:30,247 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7828 states, 7796 states have (on average 2.753591585428425) internal successors, (21467), 7827 states have internal predecessors, (21467), 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) [2023-11-24 23:57:30,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:57:30,289 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;@76039838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:57:30,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-24 23:57:30,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 7828 states, 7796 states have (on average 2.753591585428425) internal successors, (21467), 7827 states have internal predecessors, (21467), 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) [2023-11-24 23:57:30,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:57:30,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:30,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:30,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-24 23:57:30,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:30,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1347678120, now seen corresponding path program 1 times [2023-11-24 23:57:30,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:30,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751946730] [2023-11-24 23:57:30,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:30,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:30,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:30,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751946730] [2023-11-24 23:57:30,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751946730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:30,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:30,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:57:30,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622435297] [2023-11-24 23:57:30,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:30,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:57:30,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:30,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:57:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:57:30,829 INFO L87 Difference]: Start difference. First operand has 7828 states, 7796 states have (on average 2.753591585428425) internal successors, (21467), 7827 states have internal predecessors, (21467), 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 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-24 23:57:31,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:31,069 INFO L93 Difference]: Finished difference Result 7772 states and 21020 transitions. [2023-11-24 23:57:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:57:31,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2023-11-24 23:57:31,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:31,199 INFO L225 Difference]: With dead ends: 7772 [2023-11-24 23:57:31,206 INFO L226 Difference]: Without dead ends: 7330 [2023-11-24 23:57:31,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:57:31,211 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 119 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:31,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 176 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:57:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7330 states. [2023-11-24 23:57:31,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7330 to 7330. [2023-11-24 23:57:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7330 states, 7302 states have (on average 2.7107641741988497) internal successors, (19794), 7329 states have internal predecessors, (19794), 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) [2023-11-24 23:57:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7330 states to 7330 states and 19794 transitions. [2023-11-24 23:57:31,637 INFO L78 Accepts]: Start accepts. Automaton has 7330 states and 19794 transitions. Word has length 28 [2023-11-24 23:57:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:31,639 INFO L495 AbstractCegarLoop]: Abstraction has 7330 states and 19794 transitions. [2023-11-24 23:57:31,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-24 23:57:31,640 INFO L276 IsEmpty]: Start isEmpty. Operand 7330 states and 19794 transitions. [2023-11-24 23:57:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 23:57:31,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:31,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:31,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:57:31,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-24 23:57:31,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:31,646 INFO L85 PathProgramCache]: Analyzing trace with hash -428281827, now seen corresponding path program 1 times [2023-11-24 23:57:31,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:31,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185723522] [2023-11-24 23:57:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:31,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:31,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:31,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185723522] [2023-11-24 23:57:31,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185723522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:31,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:31,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:31,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133943991] [2023-11-24 23:57:31,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:31,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:31,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:31,758 INFO L87 Difference]: Start difference. First operand 7330 states and 19794 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:31,895 INFO L93 Difference]: Finished difference Result 7999 states and 21583 transitions. [2023-11-24 23:57:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:31,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-24 23:57:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:31,963 INFO L225 Difference]: With dead ends: 7999 [2023-11-24 23:57:31,963 INFO L226 Difference]: Without dead ends: 7495 [2023-11-24 23:57:31,964 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 [2023-11-24 23:57:31,966 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 59 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:31,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 207 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7495 states. [2023-11-24 23:57:32,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7495 to 7001. [2023-11-24 23:57:32,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 6974 states have (on average 2.6988815600802982) internal successors, (18822), 7000 states have internal predecessors, (18822), 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) [2023-11-24 23:57:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 18822 transitions. [2023-11-24 23:57:32,446 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 18822 transitions. Word has length 29 [2023-11-24 23:57:32,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:32,448 INFO L495 AbstractCegarLoop]: Abstraction has 7001 states and 18822 transitions. [2023-11-24 23:57:32,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:32,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 18822 transitions. [2023-11-24 23:57:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:57:32,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:32,456 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:32,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:57:32,457 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-24 23:57:32,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:32,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1219669538, now seen corresponding path program 1 times [2023-11-24 23:57:32,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:32,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939133550] [2023-11-24 23:57:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:32,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:57:32,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:57:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:57:32,568 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:57:32,568 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:57:32,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-11-24 23:57:32,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-24 23:57:32,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-11-24 23:57:32,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-24 23:57:32,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-24 23:57:32,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-24 23:57:32,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-24 23:57:32,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:57:32,587 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-24 23:57:32,590 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-24 23:57:32,590 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-24 23:57:32,655 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-24 23:57:32,673 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 135 places, 131 transitions, 294 flow [2023-11-24 23:57:37,975 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 140870 states, 140778 states have (on average 3.638118171873446) internal successors, (512167), 140869 states have internal predecessors, (512167), 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) [2023-11-24 23:57:37,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:57:37,983 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;@76039838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:57:37,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-24 23:57:38,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 140870 states, 140778 states have (on average 3.638118171873446) internal successors, (512167), 140869 states have internal predecessors, (512167), 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) [2023-11-24 23:57:38,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:57:38,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:38,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:38,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-24 23:57:38,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash 187443593, now seen corresponding path program 1 times [2023-11-24 23:57:38,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:38,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381368680] [2023-11-24 23:57:38,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:38,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:38,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:38,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381368680] [2023-11-24 23:57:38,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381368680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:38,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107088812] [2023-11-24 23:57:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:38,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:57:38,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:38,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:57:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:57:38,496 INFO L87 Difference]: Start difference. First operand has 140870 states, 140778 states have (on average 3.638118171873446) internal successors, (512167), 140869 states have internal predecessors, (512167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-24 23:57:41,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:41,569 INFO L93 Difference]: Finished difference Result 140870 states and 506028 transitions. [2023-11-24 23:57:41,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:57:41,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2023-11-24 23:57:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:43,048 INFO L225 Difference]: With dead ends: 140870 [2023-11-24 23:57:43,048 INFO L226 Difference]: Without dead ends: 137292 [2023-11-24 23:57:43,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:57:43,050 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:43,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:57:43,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137292 states. [2023-11-24 23:57:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137292 to 137292. [2023-11-24 23:57:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137292 states, 137208 states have (on average 3.593391055915107) internal successors, (493042), 137291 states have internal predecessors, (493042), 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) [2023-11-24 23:57:49,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137292 states to 137292 states and 493042 transitions. [2023-11-24 23:57:49,923 INFO L78 Accepts]: Start accepts. Automaton has 137292 states and 493042 transitions. Word has length 28 [2023-11-24 23:57:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:49,924 INFO L495 AbstractCegarLoop]: Abstraction has 137292 states and 493042 transitions. [2023-11-24 23:57:49,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-24 23:57:49,924 INFO L276 IsEmpty]: Start isEmpty. Operand 137292 states and 493042 transitions. [2023-11-24 23:57:49,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:57:49,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:49,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:49,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:57:49,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-24 23:57:49,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:49,935 INFO L85 PathProgramCache]: Analyzing trace with hash 480846600, now seen corresponding path program 1 times [2023-11-24 23:57:49,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:49,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537509122] [2023-11-24 23:57:49,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:49,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:50,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:50,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537509122] [2023-11-24 23:57:50,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537509122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:50,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:50,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:57:50,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410067092] [2023-11-24 23:57:50,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:50,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:57:50,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:50,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:57:50,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:57:50,012 INFO L87 Difference]: Start difference. First operand 137292 states and 493042 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-24 23:57:51,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:51,928 INFO L93 Difference]: Finished difference Result 137236 states and 492937 transitions. [2023-11-24 23:57:51,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:57:51,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2023-11-24 23:57:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:53,417 INFO L225 Difference]: With dead ends: 137236 [2023-11-24 23:57:53,418 INFO L226 Difference]: Without dead ends: 137236 [2023-11-24 23:57:53,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:57:53,419 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 117 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:53,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 232 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:57:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137236 states. [2023-11-24 23:57:57,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137236 to 137236. [2023-11-24 23:57:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137236 states, 137152 states have (on average 3.594092685487634) internal successors, (492937), 137235 states have internal predecessors, (492937), 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) [2023-11-24 23:57:59,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137236 states to 137236 states and 492937 transitions. [2023-11-24 23:57:59,478 INFO L78 Accepts]: Start accepts. Automaton has 137236 states and 492937 transitions. Word has length 28 [2023-11-24 23:57:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:59,478 INFO L495 AbstractCegarLoop]: Abstraction has 137236 states and 492937 transitions. [2023-11-24 23:57:59,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-24 23:57:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 137236 states and 492937 transitions. [2023-11-24 23:57:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 23:57:59,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:59,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:59,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:57:59,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-24 23:57:59,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1824515582, now seen corresponding path program 1 times [2023-11-24 23:57:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:59,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301176214] [2023-11-24 23:57:59,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:59,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:59,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301176214] [2023-11-24 23:57:59,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301176214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:59,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:59,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:57:59,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412316214] [2023-11-24 23:57:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:59,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:59,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:59,523 INFO L87 Difference]: Start difference. First operand 137236 states and 492937 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:58:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:01,632 INFO L93 Difference]: Finished difference Result 155563 states and 559686 transitions. [2023-11-24 23:58:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:58:01,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-24 23:58:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:02,703 INFO L225 Difference]: With dead ends: 155563 [2023-11-24 23:58:02,703 INFO L226 Difference]: Without dead ends: 151531 [2023-11-24 23:58:02,704 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 [2023-11-24 23:58:02,718 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 76 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:02,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 244 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:58:03,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151531 states. [2023-11-24 23:58:08,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151531 to 138903. [2023-11-24 23:58:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138903 states, 138819 states have (on average 3.5918858369531548) internal successors, (498622), 138902 states have internal predecessors, (498622), 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) [2023-11-24 23:58:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138903 states to 138903 states and 498622 transitions. [2023-11-24 23:58:09,845 INFO L78 Accepts]: Start accepts. Automaton has 138903 states and 498622 transitions. Word has length 29 [2023-11-24 23:58:09,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:58:09,845 INFO L495 AbstractCegarLoop]: Abstraction has 138903 states and 498622 transitions. [2023-11-24 23:58:09,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:58:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 138903 states and 498622 transitions. [2023-11-24 23:58:09,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-24 23:58:09,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:09,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:58:09,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:58:09,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-24 23:58:09,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:09,855 INFO L85 PathProgramCache]: Analyzing trace with hash -201902399, now seen corresponding path program 1 times [2023-11-24 23:58:09,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:09,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055291633] [2023-11-24 23:58:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:09,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:58:09,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:58:09,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055291633] [2023-11-24 23:58:09,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055291633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:09,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:09,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:58:09,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426725627] [2023-11-24 23:58:09,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:09,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:58:09,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:58:09,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:58:09,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:58:09,995 INFO L87 Difference]: Start difference. First operand 138903 states and 498622 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:58:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:10,633 INFO L93 Difference]: Finished difference Result 90140 states and 310213 transitions. [2023-11-24 23:58:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:58:10,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-11-24 23:58:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:11,034 INFO L225 Difference]: With dead ends: 90140 [2023-11-24 23:58:11,034 INFO L226 Difference]: Without dead ends: 90140 [2023-11-24 23:58:11,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:58:11,035 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 136 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:11,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 262 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:58:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90140 states.