./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/test-easy11.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-easy11.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4ad0d0809306a534b821bfb65370b6441b48266d0d86b4699760a422c08b963 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:01,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:01,294 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:00:01,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:01,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:01,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:01,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:01,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:01,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:01,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:01,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:01,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:01,331 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:01,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:01,333 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:01,333 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:01,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:01,334 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:01,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:01,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:01,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:01,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:01,342 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:00:01,343 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:01,343 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:01,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:01,344 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:01,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:01,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:01,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:01,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:01,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:01,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:01,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:01,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:01,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:01,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:01,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:01,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:01,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:01,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:01,350 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4ad0d0809306a534b821bfb65370b6441b48266d0d86b4699760a422c08b963 [2023-11-26 12:00:01,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:01,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:01,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:01,639 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:01,639 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:01,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/test-easy11.wvr.c [2023-11-26 12:00:04,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:04,976 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:04,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/sv-benchmarks/c/weaver/test-easy11.wvr.c [2023-11-26 12:00:04,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/data/2bf0051c8/c670b75815ef45f5819bc6f3f9109f2a/FLAGde8d69d98 [2023-11-26 12:00:05,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/data/2bf0051c8/c670b75815ef45f5819bc6f3f9109f2a [2023-11-26 12:00:05,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:05,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:05,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:05,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:05,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:05,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790a4bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05, skipping insertion in model container [2023-11-26 12:00:05,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,039 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:05,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:05,266 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:05,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:05,326 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:05,326 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:05,334 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:05,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05 WrapperNode [2023-11-26 12:00:05,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:05,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:05,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:05,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:05,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,408 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-26 12:00:05,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:05,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:05,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:05,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:05,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:05,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:05,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:05,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:05,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (1/1) ... [2023-11-26 12:00:05,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:05,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:05,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:00:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:00:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:00:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:00:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:00:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:00:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:00:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:00:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:00:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:05,535 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:00:05,646 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:05,648 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:05,918 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:05,985 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:05,985 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:00:05,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:05 BoogieIcfgContainer [2023-11-26 12:00:05,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:06,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:06,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:06,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:06,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:05" (1/3) ... [2023-11-26 12:00:06,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b313f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:06, skipping insertion in model container [2023-11-26 12:00:06,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:05" (2/3) ... [2023-11-26 12:00:06,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b313f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:06, skipping insertion in model container [2023-11-26 12:00:06,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:05" (3/3) ... [2023-11-26 12:00:06,017 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2023-11-26 12:00:06,027 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:00:06,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:06,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-26 12:00:06,040 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:00:06,132 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 12:00:06,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 121 transitions, 256 flow [2023-11-26 12:00:06,235 INFO L124 PetriNetUnfolderBase]: 6/119 cut-off events. [2023-11-26 12:00:06,236 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 12:00:06,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 119 events. 6/119 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-11-26 12:00:06,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 121 transitions, 256 flow [2023-11-26 12:00:06,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 98 transitions, 208 flow [2023-11-26 12:00:06,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:06,273 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@3b3f546f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:06,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-11-26 12:00:06,284 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:00:06,284 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-26 12:00:06,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:00:06,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:06,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:06,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-26 12:00:06,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:06,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1544600246, now seen corresponding path program 1 times [2023-11-26 12:00:06,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:06,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769295986] [2023-11-26 12:00:06,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:06,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:06,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:06,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769295986] [2023-11-26 12:00:06,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769295986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:06,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:06,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710301207] [2023-11-26 12:00:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:06,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:06,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:06,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:06,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:06,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2023-11-26 12:00:06,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:06,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2023-11-26 12:00:06,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:06,730 INFO L124 PetriNetUnfolderBase]: 13/152 cut-off events. [2023-11-26 12:00:06,731 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-26 12:00:06,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 152 events. 13/152 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 360 event pairs, 8 based on Foata normal form. 9/143 useless extension candidates. Maximal degree in co-relation 114. Up to 29 conditions per place. [2023-11-26 12:00:06,737 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 12 selfloop transitions, 2 changer transitions 1/90 dead transitions. [2023-11-26 12:00:06,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 90 transitions, 220 flow [2023-11-26 12:00:06,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:06,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:00:06,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-11-26 12:00:06,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8539944903581267 [2023-11-26 12:00:06,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-11-26 12:00:06,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-11-26 12:00:06,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:06,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-11-26 12:00:06,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,772 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 208 flow. Second operand 3 states and 310 transitions. [2023-11-26 12:00:06,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 90 transitions, 220 flow [2023-11-26 12:00:06,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 90 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:00:06,781 INFO L231 Difference]: Finished difference. Result has 93 places, 89 transitions, 186 flow [2023-11-26 12:00:06,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=93, PETRI_TRANSITIONS=89} [2023-11-26 12:00:06,787 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -7 predicate places. [2023-11-26 12:00:06,788 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 186 flow [2023-11-26 12:00:06,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:06,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:06,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:06,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-26 12:00:06,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:06,791 INFO L85 PathProgramCache]: Analyzing trace with hash -447868299, now seen corresponding path program 1 times [2023-11-26 12:00:06,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:06,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210246853] [2023-11-26 12:00:06,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:06,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:06,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:06,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210246853] [2023-11-26 12:00:06,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210246853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:06,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:06,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:06,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625686176] [2023-11-26 12:00:06,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:06,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:06,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:06,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:06,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:06,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2023-11-26 12:00:06,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:06,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2023-11-26 12:00:06,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:06,937 INFO L124 PetriNetUnfolderBase]: 23/172 cut-off events. [2023-11-26 12:00:06,938 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2023-11-26 12:00:06,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 172 events. 23/172 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 515 event pairs, 15 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 199. Up to 42 conditions per place. [2023-11-26 12:00:06,941 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 12 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-11-26 12:00:06,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 86 transitions, 206 flow [2023-11-26 12:00:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:06,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:00:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-11-26 12:00:06,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.837465564738292 [2023-11-26 12:00:06,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-11-26 12:00:06,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-11-26 12:00:06,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:06,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-11-26 12:00:06,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,957 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 186 flow. Second operand 3 states and 304 transitions. [2023-11-26 12:00:06,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 86 transitions, 206 flow [2023-11-26 12:00:06,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 86 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:00:06,961 INFO L231 Difference]: Finished difference. Result has 89 places, 86 transitions, 178 flow [2023-11-26 12:00:06,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=89, PETRI_TRANSITIONS=86} [2023-11-26 12:00:06,963 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -11 predicate places. [2023-11-26 12:00:06,964 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 86 transitions, 178 flow [2023-11-26 12:00:06,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:06,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:06,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:06,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:06,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-26 12:00:06,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:06,973 INFO L85 PathProgramCache]: Analyzing trace with hash 460972412, now seen corresponding path program 1 times [2023-11-26 12:00:06,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:06,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150111596] [2023-11-26 12:00:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:06,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:07,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:07,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150111596] [2023-11-26 12:00:07,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150111596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:07,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:07,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:07,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641994357] [2023-11-26 12:00:07,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:07,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:07,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:07,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:07,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:07,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2023-11-26 12:00:07,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 86 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:07,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:07,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2023-11-26 12:00:07,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:07,874 INFO L124 PetriNetUnfolderBase]: 26/157 cut-off events. [2023-11-26 12:00:07,874 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:00:07,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 157 events. 26/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 439 event pairs, 2 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 191. Up to 20 conditions per place. [2023-11-26 12:00:07,877 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 17 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2023-11-26 12:00:07,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 234 flow [2023-11-26 12:00:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:00:07,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:00:07,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 598 transitions. [2023-11-26 12:00:07,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8236914600550964 [2023-11-26 12:00:07,882 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 598 transitions. [2023-11-26 12:00:07,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 598 transitions. [2023-11-26 12:00:07,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:07,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 598 transitions. [2023-11-26 12:00:07,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:07,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:07,890 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:07,890 INFO L175 Difference]: Start difference. First operand has 89 places, 86 transitions, 178 flow. Second operand 6 states and 598 transitions. [2023-11-26 12:00:07,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 234 flow [2023-11-26 12:00:07,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:00:07,894 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 183 flow [2023-11-26 12:00:07,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=183, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2023-11-26 12:00:07,896 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-11-26 12:00:07,896 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 183 flow [2023-11-26 12:00:07,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:07,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:07,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:07,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:07,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-26 12:00:07,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:07,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1621055519, now seen corresponding path program 1 times [2023-11-26 12:00:07,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:07,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439418772] [2023-11-26 12:00:07,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:07,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:08,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:08,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439418772] [2023-11-26 12:00:08,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439418772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:08,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:08,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:08,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090024532] [2023-11-26 12:00:08,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:08,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:08,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:08,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:08,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:08,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2023-11-26 12:00:08,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:08,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2023-11-26 12:00:08,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:08,635 INFO L124 PetriNetUnfolderBase]: 11/122 cut-off events. [2023-11-26 12:00:08,636 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 12:00:08,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 122 events. 11/122 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 215 event pairs, 3 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 139. Up to 14 conditions per place. [2023-11-26 12:00:08,639 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 13 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2023-11-26 12:00:08,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 88 transitions, 223 flow [2023-11-26 12:00:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:00:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:00:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2023-11-26 12:00:08,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2023-11-26 12:00:08,643 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2023-11-26 12:00:08,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2023-11-26 12:00:08,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:08,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2023-11-26 12:00:08,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,650 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,650 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 183 flow. Second operand 6 states and 594 transitions. [2023-11-26 12:00:08,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 88 transitions, 223 flow [2023-11-26 12:00:08,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:00:08,655 INFO L231 Difference]: Finished difference. Result has 92 places, 84 transitions, 182 flow [2023-11-26 12:00:08,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=182, PETRI_PLACES=92, PETRI_TRANSITIONS=84} [2023-11-26 12:00:08,657 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-11-26 12:00:08,658 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 84 transitions, 182 flow [2023-11-26 12:00:08,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:08,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:08,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:00:08,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-26 12:00:08,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:08,661 INFO L85 PathProgramCache]: Analyzing trace with hash 425340558, now seen corresponding path program 1 times [2023-11-26 12:00:08,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:08,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857486156] [2023-11-26 12:00:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:08,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:08,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:08,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857486156] [2023-11-26 12:00:08,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857486156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:08,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:08,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:08,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762067729] [2023-11-26 12:00:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:08,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:08,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:08,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:08,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 121 [2023-11-26 12:00:08,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 84 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:08,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 121 [2023-11-26 12:00:08,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:08,792 INFO L124 PetriNetUnfolderBase]: 6/111 cut-off events. [2023-11-26 12:00:08,792 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 12:00:08,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 111 events. 6/111 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 167 event pairs, 3 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 120. Up to 13 conditions per place. [2023-11-26 12:00:08,794 INFO L140 encePairwiseOnDemand]: 119/121 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2023-11-26 12:00:08,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 83 transitions, 194 flow [2023-11-26 12:00:08,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:08,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:00:08,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2023-11-26 12:00:08,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8732782369146006 [2023-11-26 12:00:08,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2023-11-26 12:00:08,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2023-11-26 12:00:08,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:08,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2023-11-26 12:00:08,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,801 INFO L175 Difference]: Start difference. First operand has 92 places, 84 transitions, 182 flow. Second operand 3 states and 317 transitions. [2023-11-26 12:00:08,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 83 transitions, 194 flow [2023-11-26 12:00:08,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 83 transitions, 187 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:00:08,803 INFO L231 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2023-11-26 12:00:08,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=89, PETRI_TRANSITIONS=0} [2023-11-26 12:00:08,805 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -11 predicate places. [2023-11-26 12:00:08,805 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2023-11-26 12:00:08,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:08,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2023-11-26 12:00:08,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2023-11-26 12:00:08,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2023-11-26 12:00:08,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2023-11-26 12:00:08,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2023-11-26 12:00:08,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2023-11-26 12:00:08,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2023-11-26 12:00:08,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2023-11-26 12:00:08,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2023-11-26 12:00:08,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2023-11-26 12:00:08,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2023-11-26 12:00:08,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2023-11-26 12:00:08,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 19 remaining) [2023-11-26 12:00:08,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2023-11-26 12:00:08,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2023-11-26 12:00:08,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2023-11-26 12:00:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2023-11-26 12:00:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2023-11-26 12:00:08,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2023-11-26 12:00:08,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:00:08,814 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 12:00:08,820 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 12:00:08,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:08,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:08 BasicIcfg [2023-11-26 12:00:08,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:08,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:08,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:08,827 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:08,828 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:05" (3/4) ... [2023-11-26 12:00:08,830 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:00:08,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 12:00:08,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 12:00:08,838 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-26 12:00:08,838 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 12:00:08,839 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:00:08,839 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:00:08,926 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:08,927 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:00:08,927 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:08,928 INFO L158 Benchmark]: Toolchain (without parser) took 3923.39ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 100.7MB in the beginning and 118.5MB in the end (delta: -17.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-26 12:00:08,928 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 138.4MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:08,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.33ms. Allocated memory is still 138.4MB. Free memory was 100.3MB in the beginning and 89.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:00:08,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.32ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:08,929 INFO L158 Benchmark]: Boogie Preprocessor took 43.48ms. Allocated memory is still 138.4MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:08,930 INFO L158 Benchmark]: RCFGBuilder took 532.63ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 68.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:00:08,930 INFO L158 Benchmark]: TraceAbstraction took 2825.41ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 67.6MB in the beginning and 123.7MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:08,931 INFO L158 Benchmark]: Witness Printer took 100.05ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 118.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:08,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 138.4MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.33ms. Allocated memory is still 138.4MB. Free memory was 100.3MB in the beginning and 89.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.32ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 87.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.48ms. Allocated memory is still 138.4MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.63ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 68.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2825.41ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 67.6MB in the beginning and 123.7MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 100.05ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 118.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 150 locations, 19 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 6 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 12:00:08,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b620f4d-cdab-4f49-83da-02e4db258027/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE