./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire --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 2775f713e378913186e8b7d26aeab9962af0cc62e93b6360bbda34aa29f8c3e8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:47,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:47,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 21:21:47,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:47,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:47,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:47,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:47,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:47,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:47,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:47,700 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:47,701 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:47,702 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:47,703 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:21:47,704 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:47,704 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:47,705 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:21:47,705 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:21:47,706 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:47,706 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:21:47,707 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:21:47,707 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:21:47,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:47,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:47,710 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:21:47,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:21:47,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:21:47,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:47,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:47,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:47,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:47,714 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:21:47,715 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:21:47,715 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:21:47,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:47,716 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:47,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:47,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:47,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:47,717 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:47,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:47,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:47,718 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:21:47,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:21:47,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:47,719 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:47,720 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:47,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:47,720 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_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2775f713e378913186e8b7d26aeab9962af0cc62e93b6360bbda34aa29f8c3e8 [2023-11-23 21:21:47,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:48,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:48,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:48,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:48,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:48,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i [2023-11-23 21:21:51,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:51,348 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:51,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer.i [2023-11-23 21:21:51,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/data/fc6ab456c/58a1b6269d124cb392cb73154c7d782b/FLAG71a45103f [2023-11-23 21:21:51,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/data/fc6ab456c/58a1b6269d124cb392cb73154c7d782b [2023-11-23 21:21:51,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:51,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:51,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:51,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:51,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:51,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:51" (1/1) ... [2023-11-23 21:21:51,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb17ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:51, skipping insertion in model container [2023-11-23 21:21:51,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:51" (1/1) ... [2023-11-23 21:21:51,442 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:51,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:51,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:51,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:52,040 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:52,049 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:52,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52 WrapperNode [2023-11-23 21:21:52,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:52,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:52,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:52,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:52,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,127 INFO L138 Inliner]: procedures = 160, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-23 21:21:52,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:52,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:52,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:52,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:52,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,155 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:52,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:52,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:52,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:52,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (1/1) ... [2023-11-23 21:21:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:52,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:52,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:52,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:21:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:21:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:21:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:21:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:21:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-23 21:21:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:21:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-23 21:21:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-23 21:21:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:21:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:52,247 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:21:52,390 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:52,392 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:52,730 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:21:52,774 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:21:52,784 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:21:52,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:52 BoogieIcfgContainer [2023-11-23 21:21:52,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:21:52,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:21:52,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:21:52,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:21:52,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:51" (1/3) ... [2023-11-23 21:21:52,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390504d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:52, skipping insertion in model container [2023-11-23 21:21:52,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:52" (2/3) ... [2023-11-23 21:21:52,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390504d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:52, skipping insertion in model container [2023-11-23 21:21:52,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:52" (3/3) ... [2023-11-23 21:21:52,804 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer.i [2023-11-23 21:21:52,822 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:21:52,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:21:52,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-23 21:21:52,832 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:21:52,894 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:21:52,930 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 139 places, 140 transitions, 284 flow [2023-11-23 21:21:53,061 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1998 states, 1967 states have (on average 1.9938993390950686) internal successors, (3922), 1997 states have internal predecessors, (3922), 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) [2023-11-23 21:21:53,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:53,089 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;@17bb8006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:53,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-23 21:21:53,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 1998 states, 1967 states have (on average 1.9938993390950686) internal successors, (3922), 1997 states have internal predecessors, (3922), 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) [2023-11-23 21:21:53,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 21:21:53,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:53,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:53,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:53,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:53,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1778244919, now seen corresponding path program 1 times [2023-11-23 21:21:53,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:53,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358908759] [2023-11-23 21:21:53,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:53,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:53,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:53,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:53,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358908759] [2023-11-23 21:21:53,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358908759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:53,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:53,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:53,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352607662] [2023-11-23 21:21:53,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:53,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:21:53,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:53,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:21:53,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:21:53,549 INFO L87 Difference]: Start difference. First operand has 1998 states, 1967 states have (on average 1.9938993390950686) internal successors, (3922), 1997 states have internal predecessors, (3922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-23 21:21:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:53,703 INFO L93 Difference]: Finished difference Result 2144 states and 4120 transitions. [2023-11-23 21:21:53,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:21:53,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-11-23 21:21:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:53,763 INFO L225 Difference]: With dead ends: 2144 [2023-11-23 21:21:53,764 INFO L226 Difference]: Without dead ends: 2143 [2023-11-23 21:21:53,766 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 [2023-11-23 21:21:53,769 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 84 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:53,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 286 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2023-11-23 21:21:53,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1932. [2023-11-23 21:21:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1910 states have (on average 1.9486910994764397) internal successors, (3722), 1931 states have internal predecessors, (3722), 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) [2023-11-23 21:21:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3722 transitions. [2023-11-23 21:21:53,996 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3722 transitions. Word has length 48 [2023-11-23 21:21:53,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:53,998 INFO L495 AbstractCegarLoop]: Abstraction has 1932 states and 3722 transitions. [2023-11-23 21:21:53,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-23 21:21:53,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3722 transitions. [2023-11-23 21:21:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 21:21:54,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:54,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:54,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:21:54,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:54,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:54,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1258247059, now seen corresponding path program 1 times [2023-11-23 21:21:54,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:54,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816997862] [2023-11-23 21:21:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:54,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:54,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:54,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:54,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816997862] [2023-11-23 21:21:54,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816997862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:54,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:54,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:54,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430050359] [2023-11-23 21:21:54,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:54,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:21:54,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:54,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:21:54,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:21:54,174 INFO L87 Difference]: Start difference. First operand 1932 states and 3722 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-11-23 21:21:54,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:54,267 INFO L93 Difference]: Finished difference Result 1953 states and 3762 transitions. [2023-11-23 21:21:54,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:21:54,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-11-23 21:21:54,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:54,282 INFO L225 Difference]: With dead ends: 1953 [2023-11-23 21:21:54,283 INFO L226 Difference]: Without dead ends: 1953 [2023-11-23 21:21:54,283 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 [2023-11-23 21:21:54,285 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 31 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:54,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 252 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:54,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2023-11-23 21:21:54,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1925. [2023-11-23 21:21:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1906 states have (on average 1.9454354669464848) internal successors, (3708), 1924 states have internal predecessors, (3708), 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) [2023-11-23 21:21:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 3708 transitions. [2023-11-23 21:21:54,358 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 3708 transitions. Word has length 53 [2023-11-23 21:21:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:54,360 INFO L495 AbstractCegarLoop]: Abstraction has 1925 states and 3708 transitions. [2023-11-23 21:21:54,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-11-23 21:21:54,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 3708 transitions. [2023-11-23 21:21:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 21:21:54,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:54,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:54,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:21:54,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:54,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash -776479161, now seen corresponding path program 1 times [2023-11-23 21:21:54,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435318126] [2023-11-23 21:21:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:54,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:54,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:54,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435318126] [2023-11-23 21:21:54,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435318126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:54,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:54,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319743177] [2023-11-23 21:21:54,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:54,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:21:54,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:54,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:21:54,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:21:54,495 INFO L87 Difference]: Start difference. First operand 1925 states and 3708 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-11-23 21:21:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:54,571 INFO L93 Difference]: Finished difference Result 2019 states and 3868 transitions. [2023-11-23 21:21:54,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:21:54,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-11-23 21:21:54,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:54,586 INFO L225 Difference]: With dead ends: 2019 [2023-11-23 21:21:54,587 INFO L226 Difference]: Without dead ends: 1907 [2023-11-23 21:21:54,593 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 [2023-11-23 21:21:54,597 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 34 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:54,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 267 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2023-11-23 21:21:54,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1827. [2023-11-23 21:21:54,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1809 states have (on average 1.9369817578772803) internal successors, (3504), 1826 states have internal predecessors, (3504), 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) [2023-11-23 21:21:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 3504 transitions. [2023-11-23 21:21:54,667 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 3504 transitions. Word has length 54 [2023-11-23 21:21:54,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:54,668 INFO L495 AbstractCegarLoop]: Abstraction has 1827 states and 3504 transitions. [2023-11-23 21:21:54,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-11-23 21:21:54,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 3504 transitions. [2023-11-23 21:21:54,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:21:54,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:54,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:54,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:21:54,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:54,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:54,679 INFO L85 PathProgramCache]: Analyzing trace with hash -538905304, now seen corresponding path program 1 times [2023-11-23 21:21:54,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:54,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005545240] [2023-11-23 21:21:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:54,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:55,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:55,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005545240] [2023-11-23 21:21:55,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005545240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:55,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:55,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:21:55,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066273026] [2023-11-23 21:21:55,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:55,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:21:55,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:55,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:21:55,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:21:55,390 INFO L87 Difference]: Start difference. First operand 1827 states and 3504 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-11-23 21:21:55,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:55,493 INFO L93 Difference]: Finished difference Result 1796 states and 3443 transitions. [2023-11-23 21:21:55,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:21:55,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 70 [2023-11-23 21:21:55,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:55,510 INFO L225 Difference]: With dead ends: 1796 [2023-11-23 21:21:55,510 INFO L226 Difference]: Without dead ends: 1796 [2023-11-23 21:21:55,511 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 [2023-11-23 21:21:55,526 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 156 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:55,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 405 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:55,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2023-11-23 21:21:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1796. [2023-11-23 21:21:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1781 states have (on average 1.9331836047164515) internal successors, (3443), 1795 states have internal predecessors, (3443), 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) [2023-11-23 21:21:55,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 3443 transitions. [2023-11-23 21:21:55,605 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 3443 transitions. Word has length 70 [2023-11-23 21:21:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:55,606 INFO L495 AbstractCegarLoop]: Abstraction has 1796 states and 3443 transitions. [2023-11-23 21:21:55,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-11-23 21:21:55,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 3443 transitions. [2023-11-23 21:21:55,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:21:55,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:55,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:55,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:21:55,613 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:55,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:55,615 INFO L85 PathProgramCache]: Analyzing trace with hash 299978077, now seen corresponding path program 1 times [2023-11-23 21:21:55,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:55,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042742269] [2023-11-23 21:21:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:55,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:55,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:55,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042742269] [2023-11-23 21:21:55,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042742269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:55,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:55,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:55,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536221664] [2023-11-23 21:21:55,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:55,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:21:55,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:55,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:21:55,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:21:55,714 INFO L87 Difference]: Start difference. First operand 1796 states and 3443 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-23 21:21:55,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:55,772 INFO L93 Difference]: Finished difference Result 1761 states and 3369 transitions. [2023-11-23 21:21:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:21:55,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2023-11-23 21:21:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:55,785 INFO L225 Difference]: With dead ends: 1761 [2023-11-23 21:21:55,786 INFO L226 Difference]: Without dead ends: 1761 [2023-11-23 21:21:55,786 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 [2023-11-23 21:21:55,787 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 58 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:55,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 287 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:21:55,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2023-11-23 21:21:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1749. [2023-11-23 21:21:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1736 states have (on average 1.9279953917050692) internal successors, (3347), 1748 states have internal predecessors, (3347), 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) [2023-11-23 21:21:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 3347 transitions. [2023-11-23 21:21:55,846 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 3347 transitions. Word has length 71 [2023-11-23 21:21:55,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:55,847 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 3347 transitions. [2023-11-23 21:21:55,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-23 21:21:55,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 3347 transitions. [2023-11-23 21:21:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:21:55,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:55,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:55,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:21:55,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:55,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 537362920, now seen corresponding path program 1 times [2023-11-23 21:21:55,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:55,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931204924] [2023-11-23 21:21:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:55,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:55,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:55,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931204924] [2023-11-23 21:21:55,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931204924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:55,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:55,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:55,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082988982] [2023-11-23 21:21:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:55,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:21:55,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:55,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:21:55,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:21:55,915 INFO L87 Difference]: Start difference. First operand 1749 states and 3347 transitions. Second operand has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-11-23 21:21:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:55,989 INFO L93 Difference]: Finished difference Result 1778 states and 3386 transitions. [2023-11-23 21:21:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:21:55,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2023-11-23 21:21:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:56,001 INFO L225 Difference]: With dead ends: 1778 [2023-11-23 21:21:56,001 INFO L226 Difference]: Without dead ends: 1616 [2023-11-23 21:21:56,002 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 [2023-11-23 21:21:56,004 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 59 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:56,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 276 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2023-11-23 21:21:56,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1584. [2023-11-23 21:21:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1575 states have (on average 1.8965079365079365) internal successors, (2987), 1583 states have internal predecessors, (2987), 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) [2023-11-23 21:21:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2987 transitions. [2023-11-23 21:21:56,066 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2987 transitions. Word has length 84 [2023-11-23 21:21:56,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:56,067 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 2987 transitions. [2023-11-23 21:21:56,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-11-23 21:21:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2987 transitions. [2023-11-23 21:21:56,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:21:56,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:56,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:56,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:21:56,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:56,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash -696725520, now seen corresponding path program 1 times [2023-11-23 21:21:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:56,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896184555] [2023-11-23 21:21:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:56,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:56,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896184555] [2023-11-23 21:21:56,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896184555] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:21:56,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356915447] [2023-11-23 21:21:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:56,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:21:56,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:56,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:21:56,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:21:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:56,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:21:56,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:21:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:56,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:21:56,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356915447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:56,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:21:56,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 21:21:56,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656383426] [2023-11-23 21:21:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:56,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:21:56,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:56,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:21:56,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:21:56,612 INFO L87 Difference]: Start difference. First operand 1584 states and 2987 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:21:56,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:56,709 INFO L93 Difference]: Finished difference Result 1731 states and 3280 transitions. [2023-11-23 21:21:56,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:21:56,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-11-23 21:21:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:56,721 INFO L225 Difference]: With dead ends: 1731 [2023-11-23 21:21:56,721 INFO L226 Difference]: Without dead ends: 1731 [2023-11-23 21:21:56,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:21:56,722 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 95 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:56,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:21:56,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2023-11-23 21:21:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1495. [2023-11-23 21:21:56,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1488 states have (on average 1.9099462365591398) internal successors, (2842), 1494 states have internal predecessors, (2842), 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) [2023-11-23 21:21:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2842 transitions. [2023-11-23 21:21:56,774 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2842 transitions. Word has length 98 [2023-11-23 21:21:56,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:56,774 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2842 transitions. [2023-11-23 21:21:56,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:21:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2842 transitions. [2023-11-23 21:21:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:21:56,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:56,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:56,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:21:56,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 21:21:57,000 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-23 21:21:57,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:57,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2136836131, now seen corresponding path program 1 times [2023-11-23 21:21:57,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:57,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794216501] [2023-11-23 21:21:57,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:57,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:21:57,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:21:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:21:57,107 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:21:57,107 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:21:57,109 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-11-23 21:21:57,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-23 21:21:57,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-23 21:21:57,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-23 21:21:57,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-23 21:21:57,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-23 21:21:57,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-23 21:21:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-23 21:21:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-23 21:21:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-23 21:21:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-23 21:21:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-23 21:21:57,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:21:57,118 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:57,120 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 21:21:57,120 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-23 21:21:57,165 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:21:57,174 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 173 places, 172 transitions, 354 flow [2023-11-23 21:21:59,412 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 64185 states, 64047 states have (on average 2.94614892188549) internal successors, (188692), 64184 states have internal predecessors, (188692), 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) [2023-11-23 21:21:59,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:59,414 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;@17bb8006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:59,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-23 21:21:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 64185 states, 64047 states have (on average 2.94614892188549) internal successors, (188692), 64184 states have internal predecessors, (188692), 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) [2023-11-23 21:21:59,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 21:21:59,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:59,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:59,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:21:59,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:59,681 INFO L85 PathProgramCache]: Analyzing trace with hash -391076151, now seen corresponding path program 1 times [2023-11-23 21:21:59,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:59,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62925] [2023-11-23 21:21:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:59,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:21:59,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:21:59,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62925] [2023-11-23 21:21:59,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:59,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:59,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:59,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929261929] [2023-11-23 21:21:59,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:59,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:21:59,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:21:59,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:21:59,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:21:59,897 INFO L87 Difference]: Start difference. First operand has 64185 states, 64047 states have (on average 2.94614892188549) internal successors, (188692), 64184 states have internal predecessors, (188692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-23 21:22:01,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:01,798 INFO L93 Difference]: Finished difference Result 81318 states and 234567 transitions. [2023-11-23 21:22:01,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:01,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-11-23 21:22:01,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:02,546 INFO L225 Difference]: With dead ends: 81318 [2023-11-23 21:22:02,546 INFO L226 Difference]: Without dead ends: 81317 [2023-11-23 21:22:02,547 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 [2023-11-23 21:22:02,547 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 113 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:02,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 352 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:22:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81317 states. [2023-11-23 21:22:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81317 to 65013. [2023-11-23 21:22:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65013 states, 64898 states have (on average 2.8990569817251686) internal successors, (188143), 65012 states have internal predecessors, (188143), 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) [2023-11-23 21:22:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65013 states to 65013 states and 188143 transitions. [2023-11-23 21:22:05,949 INFO L78 Accepts]: Start accepts. Automaton has 65013 states and 188143 transitions. Word has length 48 [2023-11-23 21:22:05,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:05,950 INFO L495 AbstractCegarLoop]: Abstraction has 65013 states and 188143 transitions. [2023-11-23 21:22:05,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-23 21:22:05,950 INFO L276 IsEmpty]: Start isEmpty. Operand 65013 states and 188143 transitions. [2023-11-23 21:22:05,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 21:22:05,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:05,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:05,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:22:05,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:05,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:05,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1098128065, now seen corresponding path program 1 times [2023-11-23 21:22:05,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:05,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247239015] [2023-11-23 21:22:05,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:05,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:05,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:05,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247239015] [2023-11-23 21:22:05,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247239015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:05,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:05,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:22:05,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072974077] [2023-11-23 21:22:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:05,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:05,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:05,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:05,996 INFO L87 Difference]: Start difference. First operand 65013 states and 188143 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-11-23 21:22:06,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:06,973 INFO L93 Difference]: Finished difference Result 66764 states and 193141 transitions. [2023-11-23 21:22:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:06,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-11-23 21:22:06,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:07,333 INFO L225 Difference]: With dead ends: 66764 [2023-11-23 21:22:07,333 INFO L226 Difference]: Without dead ends: 66764 [2023-11-23 21:22:07,334 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 [2023-11-23 21:22:07,337 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 60 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:07,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 323 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:22:07,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66764 states. [2023-11-23 21:22:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66764 to 65300. [2023-11-23 21:22:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65300 states, 65192 states have (on average 2.8980703153761196) internal successors, (188931), 65299 states have internal predecessors, (188931), 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) [2023-11-23 21:22:09,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65300 states to 65300 states and 188931 transitions. [2023-11-23 21:22:09,483 INFO L78 Accepts]: Start accepts. Automaton has 65300 states and 188931 transitions. Word has length 53 [2023-11-23 21:22:09,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:09,483 INFO L495 AbstractCegarLoop]: Abstraction has 65300 states and 188931 transitions. [2023-11-23 21:22:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-11-23 21:22:09,484 INFO L276 IsEmpty]: Start isEmpty. Operand 65300 states and 188931 transitions. [2023-11-23 21:22:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 21:22:09,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:09,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:09,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:22:09,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:09,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash -809663801, now seen corresponding path program 1 times [2023-11-23 21:22:09,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:09,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96785451] [2023-11-23 21:22:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:09,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:09,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:09,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96785451] [2023-11-23 21:22:09,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96785451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:09,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:09,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:22:09,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115638206] [2023-11-23 21:22:09,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:09,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:09,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:09,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:09,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:09,518 INFO L87 Difference]: Start difference. First operand 65300 states and 188931 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-11-23 21:22:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:10,788 INFO L93 Difference]: Finished difference Result 70759 states and 203767 transitions. [2023-11-23 21:22:10,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:10,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-11-23 21:22:10,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:11,072 INFO L225 Difference]: With dead ends: 70759 [2023-11-23 21:22:11,073 INFO L226 Difference]: Without dead ends: 69961 [2023-11-23 21:22:11,073 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 [2023-11-23 21:22:11,074 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 65 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 344 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 [2023-11-23 21:22:11,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 344 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:22:11,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69961 states. [2023-11-23 21:22:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69961 to 65391. [2023-11-23 21:22:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65391 states, 65284 states have (on average 2.896192022547638) internal successors, (189075), 65390 states have internal predecessors, (189075), 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) [2023-11-23 21:22:13,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65391 states to 65391 states and 189075 transitions. [2023-11-23 21:22:13,282 INFO L78 Accepts]: Start accepts. Automaton has 65391 states and 189075 transitions. Word has length 54 [2023-11-23 21:22:13,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:13,282 INFO L495 AbstractCegarLoop]: Abstraction has 65391 states and 189075 transitions. [2023-11-23 21:22:13,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2023-11-23 21:22:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 65391 states and 189075 transitions. [2023-11-23 21:22:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:22:13,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:13,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:13,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:22:13,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:13,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:13,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1217841465, now seen corresponding path program 1 times [2023-11-23 21:22:13,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:13,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629896192] [2023-11-23 21:22:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:13,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:13,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629896192] [2023-11-23 21:22:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629896192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:13,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:13,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:22:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533099703] [2023-11-23 21:22:13,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:13,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:22:13,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:13,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:22:13,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:22:13,782 INFO L87 Difference]: Start difference. First operand 65391 states and 189075 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-11-23 21:22:14,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:14,394 INFO L93 Difference]: Finished difference Result 64324 states and 185977 transitions. [2023-11-23 21:22:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:22:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 70 [2023-11-23 21:22:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:14,731 INFO L225 Difference]: With dead ends: 64324 [2023-11-23 21:22:14,731 INFO L226 Difference]: Without dead ends: 64324 [2023-11-23 21:22:14,732 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 [2023-11-23 21:22:14,732 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 284 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:14,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 655 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:22:14,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64324 states. [2023-11-23 21:22:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64324 to 64324. [2023-11-23 21:22:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64324 states, 64234 states have (on average 2.8953046673101475) internal successors, (185977), 64323 states have internal predecessors, (185977), 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) [2023-11-23 21:22:17,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64324 states to 64324 states and 185977 transitions. [2023-11-23 21:22:17,336 INFO L78 Accepts]: Start accepts. Automaton has 64324 states and 185977 transitions. Word has length 70 [2023-11-23 21:22:17,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:17,337 INFO L495 AbstractCegarLoop]: Abstraction has 64324 states and 185977 transitions. [2023-11-23 21:22:17,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2023-11-23 21:22:17,337 INFO L276 IsEmpty]: Start isEmpty. Operand 64324 states and 185977 transitions. [2023-11-23 21:22:17,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:22:17,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:17,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:17,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 21:22:17,340 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:17,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash 727793738, now seen corresponding path program 1 times [2023-11-23 21:22:17,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:17,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146885401] [2023-11-23 21:22:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:17,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:17,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:17,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146885401] [2023-11-23 21:22:17,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146885401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:17,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:17,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:22:17,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640550852] [2023-11-23 21:22:17,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:17,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:17,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:17,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:17,383 INFO L87 Difference]: Start difference. First operand 64324 states and 185977 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-23 21:22:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:17,839 INFO L93 Difference]: Finished difference Result 68244 states and 197537 transitions. [2023-11-23 21:22:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2023-11-23 21:22:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:18,080 INFO L225 Difference]: With dead ends: 68244 [2023-11-23 21:22:18,080 INFO L226 Difference]: Without dead ends: 68244 [2023-11-23 21:22:18,081 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 [2023-11-23 21:22:18,082 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 92 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:18,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 366 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:22:18,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68244 states. [2023-11-23 21:22:19,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68244 to 65298. [2023-11-23 21:22:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65298 states, 65209 states have (on average 2.896241316382708) internal successors, (188861), 65297 states have internal predecessors, (188861), 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) [2023-11-23 21:22:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65298 states to 65298 states and 188861 transitions. [2023-11-23 21:22:20,545 INFO L78 Accepts]: Start accepts. Automaton has 65298 states and 188861 transitions. Word has length 71 [2023-11-23 21:22:20,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:20,545 INFO L495 AbstractCegarLoop]: Abstraction has 65298 states and 188861 transitions. [2023-11-23 21:22:20,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-11-23 21:22:20,545 INFO L276 IsEmpty]: Start isEmpty. Operand 65298 states and 188861 transitions. [2023-11-23 21:22:20,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:22:20,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:20,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:20,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:22:20,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:20,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:20,548 INFO L85 PathProgramCache]: Analyzing trace with hash 695646151, now seen corresponding path program 1 times [2023-11-23 21:22:20,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:20,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184513481] [2023-11-23 21:22:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:20,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:20,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:20,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184513481] [2023-11-23 21:22:20,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184513481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:20,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:20,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:22:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810610640] [2023-11-23 21:22:20,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:20,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:20,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:20,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:20,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:20,602 INFO L87 Difference]: Start difference. First operand 65298 states and 188861 transitions. Second operand has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-11-23 21:22:21,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:21,190 INFO L93 Difference]: Finished difference Result 70415 states and 203689 transitions. [2023-11-23 21:22:21,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:21,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2023-11-23 21:22:21,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:21,403 INFO L225 Difference]: With dead ends: 70415 [2023-11-23 21:22:21,404 INFO L226 Difference]: Without dead ends: 69119 [2023-11-23 21:22:21,404 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 [2023-11-23 21:22:21,404 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 89 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:21,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 346 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:22:21,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69119 states. [2023-11-23 21:22:23,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69119 to 65559. [2023-11-23 21:22:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65559 states, 65481 states have (on average 2.890991279913257) internal successors, (189305), 65558 states have internal predecessors, (189305), 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) [2023-11-23 21:22:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65559 states to 65559 states and 189305 transitions. [2023-11-23 21:22:23,291 INFO L78 Accepts]: Start accepts. Automaton has 65559 states and 189305 transitions. Word has length 84 [2023-11-23 21:22:23,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:23,292 INFO L495 AbstractCegarLoop]: Abstraction has 65559 states and 189305 transitions. [2023-11-23 21:22:23,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-11-23 21:22:23,292 INFO L276 IsEmpty]: Start isEmpty. Operand 65559 states and 189305 transitions. [2023-11-23 21:22:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:22:23,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:23,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:23,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:22:23,295 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:23,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:23,296 INFO L85 PathProgramCache]: Analyzing trace with hash -240099919, now seen corresponding path program 1 times [2023-11-23 21:22:23,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:23,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070783277] [2023-11-23 21:22:23,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:23,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:23,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:23,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:23,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070783277] [2023-11-23 21:22:23,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070783277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:22:23,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532148153] [2023-11-23 21:22:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:23,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:23,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:23,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:23,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:22:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:23,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:22:23,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:23,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:23,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:22:23,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532148153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:23,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:22:23,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 21:22:23,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790492000] [2023-11-23 21:22:23,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:23,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:22:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:22:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:22:23,810 INFO L87 Difference]: Start difference. First operand 65559 states and 189305 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:22:25,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:25,157 INFO L93 Difference]: Finished difference Result 84138 states and 242177 transitions. [2023-11-23 21:22:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:22:25,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-11-23 21:22:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:25,414 INFO L225 Difference]: With dead ends: 84138 [2023-11-23 21:22:25,414 INFO L226 Difference]: Without dead ends: 84138 [2023-11-23 21:22:25,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:22:25,415 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 334 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:25,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 664 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:22:25,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84138 states. [2023-11-23 21:22:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84138 to 67949. [2023-11-23 21:22:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67949 states, 67879 states have (on average 2.8950927385494776) internal successors, (196516), 67948 states have internal predecessors, (196516), 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) [2023-11-23 21:22:27,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67949 states to 67949 states and 196516 transitions. [2023-11-23 21:22:27,476 INFO L78 Accepts]: Start accepts. Automaton has 67949 states and 196516 transitions. Word has length 98 [2023-11-23 21:22:27,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:27,476 INFO L495 AbstractCegarLoop]: Abstraction has 67949 states and 196516 transitions. [2023-11-23 21:22:27,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:22:27,476 INFO L276 IsEmpty]: Start isEmpty. Operand 67949 states and 196516 transitions. [2023-11-23 21:22:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 21:22:27,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:27,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:27,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:27,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 21:22:27,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:27,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:27,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1654357481, now seen corresponding path program 1 times [2023-11-23 21:22:27,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:27,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514181507] [2023-11-23 21:22:27,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:27,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:22:27,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:27,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514181507] [2023-11-23 21:22:27,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514181507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:27,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:27,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:22:27,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273568559] [2023-11-23 21:22:27,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:27,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:27,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:27,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:27,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:27,840 INFO L87 Difference]: Start difference. First operand 67949 states and 196516 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2023-11-23 21:22:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:29,057 INFO L93 Difference]: Finished difference Result 88667 states and 251230 transitions. [2023-11-23 21:22:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:29,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 105 [2023-11-23 21:22:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:29,445 INFO L225 Difference]: With dead ends: 88667 [2023-11-23 21:22:29,445 INFO L226 Difference]: Without dead ends: 88429 [2023-11-23 21:22:29,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:29,447 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 101 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:29,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 360 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:22:29,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88429 states. [2023-11-23 21:22:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88429 to 77178. [2023-11-23 21:22:31,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77178 states, 77089 states have (on average 2.8534810413937137) internal successors, (219972), 77177 states have internal predecessors, (219972), 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) [2023-11-23 21:22:32,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77178 states to 77178 states and 219972 transitions. [2023-11-23 21:22:32,019 INFO L78 Accepts]: Start accepts. Automaton has 77178 states and 219972 transitions. Word has length 105 [2023-11-23 21:22:32,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:32,019 INFO L495 AbstractCegarLoop]: Abstraction has 77178 states and 219972 transitions. [2023-11-23 21:22:32,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2023-11-23 21:22:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 77178 states and 219972 transitions. [2023-11-23 21:22:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 21:22:32,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:32,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:32,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 21:22:32,025 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:32,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:32,026 INFO L85 PathProgramCache]: Analyzing trace with hash 495154395, now seen corresponding path program 2 times [2023-11-23 21:22:32,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:32,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015804271] [2023-11-23 21:22:32,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:32,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:22:32,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:32,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015804271] [2023-11-23 21:22:32,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015804271] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:22:32,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629743688] [2023-11-23 21:22:32,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:22:32,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:32,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:32,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:32,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:22:32,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-23 21:22:32,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:22:32,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:22:32,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:32,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:22:32,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:32,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 21:22:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:22:32,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:22:32,900 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_291 (Array Int Int))) (not (= (select (select (store |c_#pthreadsMutex| |c_~#data_mutex~0.base| v_ArrVal_291) |c_~#threads_alive_mutex~0.base|) |c_~#threads_alive_mutex~0.offset|) 0))) is different from false [2023-11-23 21:22:32,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:22:32,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-11-23 21:22:32,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-23 21:22:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 4 not checked. [2023-11-23 21:22:33,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629743688] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:22:33,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1435419060] [2023-11-23 21:22:33,062 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 21:22:33,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:22:33,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-23 21:22:33,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767686342] [2023-11-23 21:22:33,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:22:33,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 21:22:33,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:33,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 21:22:33,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2023-11-23 21:22:33,068 INFO L87 Difference]: Start difference. First operand 77178 states and 219972 transitions. Second operand has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 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) [2023-11-23 21:22:33,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:33,349 INFO L93 Difference]: Finished difference Result 34878 states and 96182 transitions. [2023-11-23 21:22:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:22:33,349 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 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 105 [2023-11-23 21:22:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:33,416 INFO L225 Difference]: With dead ends: 34878 [2023-11-23 21:22:33,416 INFO L226 Difference]: Without dead ends: 34523 [2023-11-23 21:22:33,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=120, Unknown=1, NotChecked=24, Total=210 [2023-11-23 21:22:33,417 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 413 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 221 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:33,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 516 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 104 Invalid, 0 Unknown, 221 Unchecked, 0.1s Time] [2023-11-23 21:22:34,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34523 states. [2023-11-23 21:22:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34523 to 31901. [2023-11-23 21:22:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31901 states, 31879 states have (on average 2.7899557702562814) internal successors, (88941), 31900 states have internal predecessors, (88941), 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) [2023-11-23 21:22:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31901 states to 31901 states and 88941 transitions. [2023-11-23 21:22:34,695 INFO L78 Accepts]: Start accepts. Automaton has 31901 states and 88941 transitions. Word has length 105 [2023-11-23 21:22:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:34,695 INFO L495 AbstractCegarLoop]: Abstraction has 31901 states and 88941 transitions. [2023-11-23 21:22:34,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 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) [2023-11-23 21:22:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 31901 states and 88941 transitions. [2023-11-23 21:22:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 21:22:34,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:34,698 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:34,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:34,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b2a739-7e6a-40cc-b59e-f621a4e042e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:34,899 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-23 21:22:34,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash 249222946, now seen corresponding path program 1 times [2023-11-23 21:22:34,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:34,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627523527] [2023-11-23 21:22:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 21:22:34,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:34,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627523527] [2023-11-23 21:22:34,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627523527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:34,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:34,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:22:34,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443109687] [2023-11-23 21:22:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:34,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:34,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:34,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:34,954 INFO L87 Difference]: Start difference. First operand 31901 states and 88941 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-11-23 21:22:35,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:35,168 INFO L93 Difference]: Finished difference Result 33847 states and 94461 transitions. [2023-11-23 21:22:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:35,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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 107 [2023-11-23 21:22:35,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:35,248 INFO L225 Difference]: With dead ends: 33847 [2023-11-23 21:22:35,248 INFO L226 Difference]: Without dead ends: 33847 [2023-11-23 21:22:35,248 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 [2023-11-23 21:22:35,249 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 86 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:35,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 348 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:22:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33847 states.