./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/floating_read-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0 --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8144e99ab74da6c65d7c38142aa4ddc1b99b688ea06937a7acd153b5a75ad731 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 14:20:39,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 14:20:39,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2024-11-02 14:20:39,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 14:20:39,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 14:20:39,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 14:20:39,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 14:20:39,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 14:20:39,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 14:20:39,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 14:20:39,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 14:20:39,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 14:20:39,322 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 14:20:39,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 14:20:39,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 14:20:39,324 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 14:20:39,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 14:20:39,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 14:20:39,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 14:20:39,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 14:20:39,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 14:20:39,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 14:20:39,330 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-02 14:20:39,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 14:20:39,331 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 14:20:39,331 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 14:20:39,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 14:20:39,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 14:20:39,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 14:20:39,332 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 14:20:39,337 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-11-02 14:20:39,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 14:20:39,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 14:20:39,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 14:20:39,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 14:20:39,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 14:20:39,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-02 14:20:39,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 14:20:39,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 14:20:39,339 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-11-02 14:20:39,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-02 14:20:39,341 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-02 14:20:39,341 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-02 14:20:39,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8144e99ab74da6c65d7c38142aa4ddc1b99b688ea06937a7acd153b5a75ad731 [2024-11-02 14:20:39,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 14:20:39,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 14:20:39,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 14:20:39,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 14:20:39,708 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 14:20:39,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/../../sv-benchmarks/c/pthread-deagle/floating_read-10.i Unable to find full path for "g++" [2024-11-02 14:20:41,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 14:20:42,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 14:20:42,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/sv-benchmarks/c/pthread-deagle/floating_read-10.i [2024-11-02 14:20:42,168 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/data/65d3e107e/3ab8edd6ba0542b8a9203cf00e8285a4/FLAGe5930c6e3 [2024-11-02 14:20:42,186 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/data/65d3e107e/3ab8edd6ba0542b8a9203cf00e8285a4 [2024-11-02 14:20:42,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 14:20:42,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 14:20:42,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 14:20:42,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 14:20:42,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 14:20:42,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6f490a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42, skipping insertion in model container [2024-11-02 14:20:42,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 14:20:42,718 WARN L1657 CHandler]: Possible shadowing of function thread [2024-11-02 14:20:42,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 14:20:42,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 14:20:42,816 WARN L1657 CHandler]: Possible shadowing of function thread [2024-11-02 14:20:42,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 14:20:42,870 INFO L204 MainTranslator]: Completed translation [2024-11-02 14:20:42,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42 WrapperNode [2024-11-02 14:20:42,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 14:20:42,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 14:20:42,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 14:20:42,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 14:20:42,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,925 INFO L138 Inliner]: procedures = 162, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-02 14:20:42,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 14:20:42,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 14:20:42,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 14:20:42,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 14:20:42,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 14:20:42,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 14:20:42,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 14:20:42,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 14:20:42,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (1/1) ... [2024-11-02 14:20:42,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 14:20:42,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:20:43,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 14:20:43,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 14:20:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 14:20:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 14:20:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 14:20:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 14:20:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 14:20:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 14:20:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 14:20:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-02 14:20:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-02 14:20:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 14:20:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 14:20:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 14:20:43,045 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 14:20:43,205 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 14:20:43,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 14:20:43,397 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 14:20:43,397 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 14:20:43,474 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 14:20:43,474 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-02 14:20:43,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:20:43 BoogieIcfgContainer [2024-11-02 14:20:43,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 14:20:43,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 14:20:43,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 14:20:43,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 14:20:43,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 02:20:42" (1/3) ... [2024-11-02 14:20:43,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94f5231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:20:43, skipping insertion in model container [2024-11-02 14:20:43,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:20:42" (2/3) ... [2024-11-02 14:20:43,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94f5231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:20:43, skipping insertion in model container [2024-11-02 14:20:43,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:20:43" (3/3) ... [2024-11-02 14:20:43,500 INFO L112 eAbstractionObserver]: Analyzing ICFG floating_read-10.i [2024-11-02 14:20:43,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 14:20:43,522 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-02 14:20:43,522 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 14:20:43,576 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-02 14:20:43,640 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:43,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-02 14:20:43,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/z3 [2024-11-02 14:20:43,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-02 14:20:43,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55ab0664-ff5d-494b-aaf3-cb326401365e/bin/ugemcutter-verify-SyDpkB78L0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-02 14:20:43,711 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:43,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2024-11-02 14:20:43,739 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:43,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:44,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:44,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:44,016 INFO L85 PathProgramCache]: Analyzing trace with hash -733918974, now seen corresponding path program 1 times [2024-11-02 14:20:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:44,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142728779] [2024-11-02 14:20:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:44,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:44,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:44,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142728779] [2024-11-02 14:20:44,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142728779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:44,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:44,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:44,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444325372] [2024-11-02 14:20:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:44,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:44,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:44,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:44,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:44,360 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:44,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 29.0) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:44,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:44,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:44,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 14:20:44,500 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:44,506 INFO L317 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was SAFE (1/2) [2024-11-02 14:20:44,514 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:44,518 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:44,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:20:44,523 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:44,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-02 14:20:44,530 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:44,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:44,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1413199819, now seen corresponding path program 1 times [2024-11-02 14:20:44,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:44,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581201756] [2024-11-02 14:20:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:44,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:44,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:44,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581201756] [2024-11-02 14:20:44,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581201756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:44,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:44,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:44,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979463164] [2024-11-02 14:20:44,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:44,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:44,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:44,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:44,590 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:44,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 14.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:44,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:44,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:44,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 14:20:44,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:44,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 305169799, now seen corresponding path program 1 times [2024-11-02 14:20:44,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:44,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824828793] [2024-11-02 14:20:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:44,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:45,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824828793] [2024-11-02 14:20:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824828793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:45,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:45,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 14:20:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142184789] [2024-11-02 14:20:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:45,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:20:45,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:20:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 14:20:45,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,290 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:45,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-02 14:20:45,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:20:45,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 14:20:45,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:45,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:45,420 INFO L85 PathProgramCache]: Analyzing trace with hash -684794120, now seen corresponding path program 1 times [2024-11-02 14:20:45,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:45,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635278785] [2024-11-02 14:20:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:45,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:45,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 14:20:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:45,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-02 14:20:45,495 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 14:20:45,496 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-02 14:20:45,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-02 14:20:45,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-02 14:20:45,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-11-02 14:20:45,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-11-02 14:20:45,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 14:20:45,506 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 14:20:45,506 INFO L317 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/2) [2024-11-02 14:20:45,507 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-02 14:20:45,507 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-02 14:20:45,537 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-02 14:20:45,542 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:45,544 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:45,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of2ForFork0 ======== [2024-11-02 14:20:45,546 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:45,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:45,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:45,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:45,635 INFO L85 PathProgramCache]: Analyzing trace with hash -226162229, now seen corresponding path program 1 times [2024-11-02 14:20:45,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:45,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607177370] [2024-11-02 14:20:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:45,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:45,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:45,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607177370] [2024-11-02 14:20:45,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607177370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:45,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:45,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:45,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778847542] [2024-11-02 14:20:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:45,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:45,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:45,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,677 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:45,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 29.0) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:45,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,906 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:45,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 14:20:45,908 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:45,911 INFO L317 ceAbstractionStarter]: Result for error location threadThread1of2ForFork0 was SAFE (1/3) [2024-11-02 14:20:45,917 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:45,918 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:45,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:20:45,919 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:45,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-02 14:20:45,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:45,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash 218895595, now seen corresponding path program 1 times [2024-11-02 14:20:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:45,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838429250] [2024-11-02 14:20:45,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:45,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:45,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:45,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838429250] [2024-11-02 14:20:45,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838429250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:45,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:45,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539821302] [2024-11-02 14:20:45,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:45,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:45,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:45,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:45,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,944 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:45,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 14.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:45,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:45,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 14:20:45,955 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:45,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:45,955 INFO L85 PathProgramCache]: Analyzing trace with hash 948703190, now seen corresponding path program 1 times [2024-11-02 14:20:45,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:45,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318900758] [2024-11-02 14:20:45,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:45,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:46,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:46,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318900758] [2024-11-02 14:20:46,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318900758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:46,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:46,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 14:20:46,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280012822] [2024-11-02 14:20:46,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:46,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:20:46,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:46,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:20:46,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 14:20:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,355 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:46,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-02 14:20:46,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:20:46,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 14:20:46,467 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:46,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash -701957406, now seen corresponding path program 1 times [2024-11-02 14:20:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:46,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139938436] [2024-11-02 14:20:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:46,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:46,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 14:20:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:46,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-02 14:20:46,516 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 14:20:46,517 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-02 14:20:46,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-02 14:20:46,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-02 14:20:46,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-11-02 14:20:46,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-11-02 14:20:46,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 14:20:46,521 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 14:20:46,521 INFO L317 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/3) [2024-11-02 14:20:46,521 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-02 14:20:46,521 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-02 14:20:46,542 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-02 14:20:46,545 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:46,546 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:46,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:20:46,547 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:46,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-02 14:20:46,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:46,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:46,551 INFO L85 PathProgramCache]: Analyzing trace with hash -141022581, now seen corresponding path program 1 times [2024-11-02 14:20:46,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:46,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203579405] [2024-11-02 14:20:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:46,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:46,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:46,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203579405] [2024-11-02 14:20:46,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203579405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:46,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:46,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:46,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633675571] [2024-11-02 14:20:46,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:46,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:46,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:46,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,576 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:46,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 14.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:46,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-02 14:20:46,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:46,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:46,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1907519553, now seen corresponding path program 1 times [2024-11-02 14:20:46,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:46,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487735068] [2024-11-02 14:20:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:46,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:46,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:46,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487735068] [2024-11-02 14:20:46,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487735068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:46,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:46,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 14:20:46,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603927328] [2024-11-02 14:20:46,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:46,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:20:46,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:46,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:20:46,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 14:20:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,942 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:46,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-02 14:20:46,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:46,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:47,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:47,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:20:47,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-02 14:20:47,118 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:47,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:47,119 INFO L85 PathProgramCache]: Analyzing trace with hash 78786905, now seen corresponding path program 1 times [2024-11-02 14:20:47,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:47,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841269677] [2024-11-02 14:20:47,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:47,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:47,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 14:20:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:47,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-02 14:20:47,222 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 14:20:47,223 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-02 14:20:47,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-02 14:20:47,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-02 14:20:47,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-11-02 14:20:47,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-11-02 14:20:47,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-02 14:20:47,227 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 14:20:47,227 INFO L317 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/4) [2024-11-02 14:20:47,227 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-02 14:20:47,227 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-02 14:20:47,264 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-02 14:20:47,271 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:47,272 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:47,272 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread3of4ForFork0 ======== [2024-11-02 14:20:47,273 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:47,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:47,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:47,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1256820971, now seen corresponding path program 1 times [2024-11-02 14:20:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:47,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683748713] [2024-11-02 14:20:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:47,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:47,461 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-02 14:20:47,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:47,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683748713] [2024-11-02 14:20:47,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683748713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:47,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:47,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:47,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716921491] [2024-11-02 14:20:47,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:47,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:47,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:47,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:47,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:47,466 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:47,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 34.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2024-11-02 14:20:47,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:48,128 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:48,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-02 14:20:48,132 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:48,132 INFO L317 ceAbstractionStarter]: Result for error location threadThread3of4ForFork0 was SAFE (1/5) [2024-11-02 14:20:48,136 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:48,139 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:48,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of4ForFork0 ======== [2024-11-02 14:20:48,140 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:48,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:48,201 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:48,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:48,201 INFO L85 PathProgramCache]: Analyzing trace with hash 360992102, now seen corresponding path program 1 times [2024-11-02 14:20:48,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:48,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993224555] [2024-11-02 14:20:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:48,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:48,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:48,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993224555] [2024-11-02 14:20:48,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993224555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:48,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:48,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:48,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104877176] [2024-11-02 14:20:48,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:48,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:48,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:48,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:48,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:48,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:48,233 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:48,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 29.0) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:48,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:48,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:48,958 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:48,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-02 14:20:48,961 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:48,961 INFO L317 ceAbstractionStarter]: Result for error location threadThread1of4ForFork0 was SAFE (2/5) [2024-11-02 14:20:48,967 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:48,968 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:48,969 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread2of4ForFork0 ======== [2024-11-02 14:20:48,971 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:48,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:49,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:49,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1930388702, now seen corresponding path program 1 times [2024-11-02 14:20:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678833161] [2024-11-02 14:20:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:49,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-02 14:20:49,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:49,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678833161] [2024-11-02 14:20:49,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678833161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:49,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:49,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:49,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608978255] [2024-11-02 14:20:49,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:49,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:49,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:49,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:49,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:49,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:49,086 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:49,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 33.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-02 14:20:49,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:49,727 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:49,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-02 14:20:49,730 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:49,732 INFO L317 ceAbstractionStarter]: Result for error location threadThread2of4ForFork0 was SAFE (3/5) [2024-11-02 14:20:49,735 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:49,737 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:49,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread4of4ForFork0 ======== [2024-11-02 14:20:49,739 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:49,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:49,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:49,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:49,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1374598833, now seen corresponding path program 1 times [2024-11-02 14:20:49,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:49,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029918127] [2024-11-02 14:20:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:49,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:49,879 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-02 14:20:49,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:49,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029918127] [2024-11-02 14:20:49,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029918127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:49,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:49,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:49,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360128657] [2024-11-02 14:20:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:49,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:49,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:49,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:49,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:49,885 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:49,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 35.0) internal successors, (35), 2 states have internal predecessors, (35), 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) [2024-11-02 14:20:49,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,419 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:50,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-02 14:20:50,422 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:50,422 INFO L317 ceAbstractionStarter]: Result for error location threadThread4of4ForFork0 was SAFE (4/5) [2024-11-02 14:20:50,425 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:50,426 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:50,428 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:20:50,428 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:50,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-02 14:20:50,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:50,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:50,431 INFO L85 PathProgramCache]: Analyzing trace with hash 987519435, now seen corresponding path program 1 times [2024-11-02 14:20:50,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:50,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224251881] [2024-11-02 14:20:50,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:50,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:50,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:50,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224251881] [2024-11-02 14:20:50,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224251881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:50,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:50,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:50,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385142800] [2024-11-02 14:20:50,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:50,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:50,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:50,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:50,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,455 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:50,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 14.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:50,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-02 14:20:50,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:50,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:50,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1809375223, now seen corresponding path program 1 times [2024-11-02 14:20:50,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:50,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054142621] [2024-11-02 14:20:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:50,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:50,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:50,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054142621] [2024-11-02 14:20:50,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054142621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:50,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:50,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 14:20:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030168595] [2024-11-02 14:20:50,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:50,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:20:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:50,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:20:50,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 14:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,716 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:50,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-02 14:20:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:50,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:20:50,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-02 14:20:50,865 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:50,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:50,865 INFO L85 PathProgramCache]: Analyzing trace with hash -376350851, now seen corresponding path program 1 times [2024-11-02 14:20:50,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:50,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425552357] [2024-11-02 14:20:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:50,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:50,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 14:20:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:50,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-02 14:20:50,929 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 14:20:50,929 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-02 14:20:50,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-02 14:20:50,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-02 14:20:50,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-11-02 14:20:50,930 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-11-02 14:20:50,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-02 14:20:50,933 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 14:20:50,933 INFO L317 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (5/5) [2024-11-02 14:20:50,933 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-02 14:20:50,933 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-02 14:20:50,956 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-02 14:20:50,958 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:50,959 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:50,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of5ForFork0 ======== [2024-11-02 14:20:50,960 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:50,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:51,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:51,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash -291875076, now seen corresponding path program 1 times [2024-11-02 14:20:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:51,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761452978] [2024-11-02 14:20:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:51,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:51,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761452978] [2024-11-02 14:20:51,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761452978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:51,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:51,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:51,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407160663] [2024-11-02 14:20:51,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:51,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:51,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:51,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:51,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:51,028 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:51,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 29.0) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:51,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:53,425 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:53,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-02 14:20:53,427 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:53,427 INFO L317 ceAbstractionStarter]: Result for error location threadThread1of5ForFork0 was SAFE (1/6) [2024-11-02 14:20:53,430 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:53,431 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:53,431 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread2of5ForFork0 ======== [2024-11-02 14:20:53,432 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:53,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:53,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:53,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash 925711282, now seen corresponding path program 1 times [2024-11-02 14:20:53,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:53,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873429194] [2024-11-02 14:20:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:53,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-02 14:20:53,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:53,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873429194] [2024-11-02 14:20:53,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873429194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:53,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:53,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:53,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415204289] [2024-11-02 14:20:53,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:53,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:53,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:53,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:53,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:53,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:53,616 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:53,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 33.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-02 14:20:53,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:55,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:55,691 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:55,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-02 14:20:55,693 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:55,694 INFO L317 ceAbstractionStarter]: Result for error location threadThread2of5ForFork0 was SAFE (2/6) [2024-11-02 14:20:55,696 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:55,697 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:55,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread3of5ForFork0 ======== [2024-11-02 14:20:55,698 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:55,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:55,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:55,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:55,762 INFO L85 PathProgramCache]: Analyzing trace with hash 475287751, now seen corresponding path program 1 times [2024-11-02 14:20:55,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:55,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728930202] [2024-11-02 14:20:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:55,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-02 14:20:55,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:55,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728930202] [2024-11-02 14:20:55,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728930202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:55,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:55,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:55,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353031195] [2024-11-02 14:20:55,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:55,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:55,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:55,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:55,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:55,802 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:55,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 34.0) internal successors, (34), 2 states have internal predecessors, (34), 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) [2024-11-02 14:20:55,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,583 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:20:57,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-02 14:20:57,586 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:20:57,586 INFO L317 ceAbstractionStarter]: Result for error location threadThread3of5ForFork0 was SAFE (3/6) [2024-11-02 14:20:57,588 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:57,589 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:57,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:20:57,590 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:57,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-02 14:20:57,592 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:57,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:57,593 INFO L85 PathProgramCache]: Analyzing trace with hash 78178187, now seen corresponding path program 1 times [2024-11-02 14:20:57,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:57,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319006039] [2024-11-02 14:20:57,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:57,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:57,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:57,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:57,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319006039] [2024-11-02 14:20:57,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319006039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:57,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:57,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:57,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403634217] [2024-11-02 14:20:57,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:57,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:57,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:57,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:57,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:57,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,608 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:57,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 14.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:20:57,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-02 14:20:57,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:57,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:57,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1514942233, now seen corresponding path program 1 times [2024-11-02 14:20:57,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:57,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259490378] [2024-11-02 14:20:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:57,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:20:57,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:57,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259490378] [2024-11-02 14:20:57,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259490378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:57,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:57,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 14:20:57,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331652566] [2024-11-02 14:20:57,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:57,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:20:57,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:57,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:20:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 14:20:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,861 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:57,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-02 14:20:57,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:20:57,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-02 14:20:57,990 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:20:57,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:57,990 INFO L85 PathProgramCache]: Analyzing trace with hash 545596142, now seen corresponding path program 1 times [2024-11-02 14:20:57,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:57,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114847837] [2024-11-02 14:20:57,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:57,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:58,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 14:20:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:20:58,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-02 14:20:58,153 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 14:20:58,154 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-02 14:20:58,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-02 14:20:58,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-02 14:20:58,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-11-02 14:20:58,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-11-02 14:20:58,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-02 14:20:58,158 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 14:20:58,158 INFO L317 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (4/6) [2024-11-02 14:20:58,158 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-02 14:20:58,158 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-02 14:20:58,202 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-02 14:20:58,204 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:58,206 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:20:58,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread6of6ForFork0 ======== [2024-11-02 14:20:58,210 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:20:58,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:20:58,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:20:58,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:20:58,307 INFO L85 PathProgramCache]: Analyzing trace with hash -790883189, now seen corresponding path program 1 times [2024-11-02 14:20:58,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:20:58,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98142550] [2024-11-02 14:20:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:20:58,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:20:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:20:58,368 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-02 14:20:58,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:20:58,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98142550] [2024-11-02 14:20:58,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98142550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:20:58,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:20:58,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:20:58,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556068332] [2024-11-02 14:20:58,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:20:58,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:20:58,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:20:58,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:20:58,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:20:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:20:58,372 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:20:58,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 37.0) internal successors, (37), 2 states have internal predecessors, (37), 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) [2024-11-02 14:20:58,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:06,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:06,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2024-11-02 14:21:06,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-02 14:21:06,716 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 14:21:06,716 INFO L317 ceAbstractionStarter]: Result for error location threadThread6of6ForFork0 was SAFE (1/7) [2024-11-02 14:21:06,718 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:21:06,719 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:21:06,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-02 14:21:06,720 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:21:06,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-02 14:21:06,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:21:06,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:21:06,723 INFO L85 PathProgramCache]: Analyzing trace with hash 657297131, now seen corresponding path program 1 times [2024-11-02 14:21:06,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:21:06,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535088171] [2024-11-02 14:21:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:21:06,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:21:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:21:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:21:06,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:21:06,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535088171] [2024-11-02 14:21:06,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535088171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:21:06,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:21:06,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:21:06,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593049344] [2024-11-02 14:21:06,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:21:06,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:21:06,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:21:06,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:21:06,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:21:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:06,738 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:21:06,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 14.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 14:21:06,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:06,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:06,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-02 14:21:06,744 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:21:06,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:21:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash 163548550, now seen corresponding path program 1 times [2024-11-02 14:21:06,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:21:06,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649409029] [2024-11-02 14:21:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:21:06,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:21:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:21:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 14:21:06,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:21:06,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649409029] [2024-11-02 14:21:06,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649409029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:21:06,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:21:06,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 14:21:06,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370422661] [2024-11-02 14:21:06,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:21:06,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 14:21:06,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:21:06,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 14:21:06,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 14:21:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:06,946 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:21:06,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2024-11-02 14:21:06,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:06,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:07,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 14:21:07,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-02 14:21:07,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2024-11-02 14:21:07,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:21:07,088 INFO L85 PathProgramCache]: Analyzing trace with hash 93406988, now seen corresponding path program 1 times [2024-11-02 14:21:07,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:21:07,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940160752] [2024-11-02 14:21:07,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:21:07,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:21:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:21:07,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 14:21:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 14:21:07,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-02 14:21:07,173 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 14:21:07,174 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-02 14:21:07,174 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-02 14:21:07,174 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2024-11-02 14:21:07,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-11-02 14:21:07,175 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-11-02 14:21:07,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-02 14:21:07,178 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 14:21:07,178 INFO L317 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/7) [2024-11-02 14:21:07,178 WARN L244 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-02 14:21:07,178 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-02 14:21:07,208 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-11-02 14:21:07,210 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:21:07,211 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-02 14:21:07,212 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread5of7ForFork0 ======== [2024-11-02 14:21:07,212 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5613d64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 14:21:07,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 14:21:07,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2024-11-02 14:21:07,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 14:21:07,311 INFO L85 PathProgramCache]: Analyzing trace with hash 639052658, now seen corresponding path program 1 times [2024-11-02 14:21:07,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-02 14:21:07,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768023544] [2024-11-02 14:21:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 14:21:07,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 14:21:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 14:21:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-02 14:21:07,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-02 14:21:07,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768023544] [2024-11-02 14:21:07,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768023544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 14:21:07,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 14:21:07,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 14:21:07,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80781916] [2024-11-02 14:21:07,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 14:21:07,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 14:21:07,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-02 14:21:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 14:21:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 14:21:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 14:21:07,359 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-02 14:21:07,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 36.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2024-11-02 14:21:07,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.