./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx --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 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:05:02,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:05:02,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:05:02,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:05:02,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:05:02,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:05:02,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:05:02,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:05:02,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:05:02,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:05:02,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:05:02,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:05:02,916 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:05:02,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:05:02,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:05:02,918 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:05:02,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:05:02,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:05:02,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:05:02,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:05:02,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:05:02,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:05:02,923 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:05:02,924 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:05:02,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:05:02,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:05:02,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:05:02,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:05:02,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:05:02,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:05:02,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:05:02,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:05:02,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:05:02,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:05:02,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:05:02,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:05:02,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:05:02,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:05:02,932 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:05:02,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:05:02,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:05:02,939 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_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac [2023-11-21 21:05:03,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:05:03,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:05:03,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:05:03,262 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:05:03,262 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:05:03,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-21 21:05:06,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:05:06,645 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:05:06,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-21 21:05:06,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/data/5c1a7c17b/e6e224d393e84f39b4b88e9ade8969e1/FLAGe0d66b3ba [2023-11-21 21:05:06,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/data/5c1a7c17b/e6e224d393e84f39b4b88e9ade8969e1 [2023-11-21 21:05:06,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:05:06,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:05:06,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:05:06,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:05:06,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:05:06,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:05:06" (1/1) ... [2023-11-21 21:05:06,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7592bc44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:06, skipping insertion in model container [2023-11-21 21:05:06,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:05:06" (1/1) ... [2023-11-21 21:05:06,741 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:05:07,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:05:07,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:05:07,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:05:07,306 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:05:07,324 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:05:07,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07 WrapperNode [2023-11-21 21:05:07,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:05:07,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:05:07,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:05:07,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:05:07,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,368 INFO L138 Inliner]: procedures = 160, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2023-11-21 21:05:07,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:05:07,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:05:07,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:05:07,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:05:07,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:05:07,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:05:07,415 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:05:07,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:05:07,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (1/1) ... [2023-11-21 21:05:07,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:05:07,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:05:07,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:05:07,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:05:07,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:05:07,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:05:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 21:05:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:05:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:05:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:05:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-21 21:05:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:05:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-21 21:05:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-21 21:05:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 21:05:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:05:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:05:07,506 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 21:05:07,698 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:05:07,700 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:05:07,889 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:05:07,910 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:05:07,911 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 21:05:07,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:05:07 BoogieIcfgContainer [2023-11-21 21:05:07,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:05:07,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:05:07,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:05:07,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:05:07,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:05:06" (1/3) ... [2023-11-21 21:05:07,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568756d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:05:07, skipping insertion in model container [2023-11-21 21:05:07,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:05:07" (2/3) ... [2023-11-21 21:05:07,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568756d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:05:07, skipping insertion in model container [2023-11-21 21:05:07,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:05:07" (3/3) ... [2023-11-21 21:05:07,923 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race.i [2023-11-21 21:05:07,932 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:05:07,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:05:07,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-21 21:05:07,945 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:05:08,000 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 21:05:08,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 105 transitions, 214 flow [2023-11-21 21:05:08,107 INFO L124 PetriNetUnfolderBase]: 7/137 cut-off events. [2023-11-21 21:05:08,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:05:08,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 7/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 181 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-11-21 21:05:08,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 105 transitions, 214 flow [2023-11-21 21:05:08,118 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 105 transitions, 214 flow [2023-11-21 21:05:08,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:05:08,136 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;@43f744bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:05:08,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-21 21:05:08,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:05:08,147 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-21 21:05:08,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:05:08,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:08,148 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] [2023-11-21 21:05:08,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 21:05:08,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:08,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1236985624, now seen corresponding path program 1 times [2023-11-21 21:05:08,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:08,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866409814] [2023-11-21 21:05:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:08,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:08,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:08,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866409814] [2023-11-21 21:05:08,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866409814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:08,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:08,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:08,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329446124] [2023-11-21 21:05:08,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:08,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:08,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:08,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:08,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:08,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-21 21:05:08,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2023-11-21 21:05:08,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:08,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-21 21:05:08,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:08,679 INFO L124 PetriNetUnfolderBase]: 32/303 cut-off events. [2023-11-21 21:05:08,681 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 21:05:08,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 303 events. 32/303 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1192 event pairs, 7 based on Foata normal form. 5/272 useless extension candidates. Maximal degree in co-relation 320. Up to 59 conditions per place. [2023-11-21 21:05:08,688 INFO L140 encePairwiseOnDemand]: 91/105 looper letters, 16 selfloop transitions, 8 changer transitions 1/112 dead transitions. [2023-11-21 21:05:08,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 112 transitions, 276 flow [2023-11-21 21:05:08,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:08,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-21 21:05:08,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2023-11-21 21:05:08,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-21 21:05:08,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-21 21:05:08,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:08,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-21 21:05:08,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2023-11-21 21:05:08,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:08,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:08,739 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 214 flow. Second operand 3 states and 296 transitions. [2023-11-21 21:05:08,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 112 transitions, 276 flow [2023-11-21 21:05:08,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:05:08,753 INFO L231 Difference]: Finished difference. Result has 108 places, 109 transitions, 276 flow [2023-11-21 21:05:08,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=108, PETRI_TRANSITIONS=109} [2023-11-21 21:05:08,760 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 4 predicate places. [2023-11-21 21:05:08,760 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 109 transitions, 276 flow [2023-11-21 21:05:08,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2023-11-21 21:05:08,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:08,761 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] [2023-11-21 21:05:08,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:05:08,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 21:05:08,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:08,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1450006439, now seen corresponding path program 1 times [2023-11-21 21:05:08,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:08,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908669735] [2023-11-21 21:05:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:08,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:08,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:08,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908669735] [2023-11-21 21:05:08,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908669735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:08,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:08,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:08,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494979459] [2023-11-21 21:05:08,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:08,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:08,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:08,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:08,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2023-11-21 21:05:08,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 109 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-21 21:05:08,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:08,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2023-11-21 21:05:08,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:08,957 INFO L124 PetriNetUnfolderBase]: 27/307 cut-off events. [2023-11-21 21:05:08,957 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-21 21:05:08,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 307 events. 27/307 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1341 event pairs, 6 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 356. Up to 45 conditions per place. [2023-11-21 21:05:08,961 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 8 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2023-11-21 21:05:08,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 113 transitions, 306 flow [2023-11-21 21:05:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:08,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2023-11-21 21:05:08,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9428571428571428 [2023-11-21 21:05:08,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2023-11-21 21:05:08,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2023-11-21 21:05:08,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:08,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2023-11-21 21:05:08,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2023-11-21 21:05:08,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:08,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:08,969 INFO L175 Difference]: Start difference. First operand has 108 places, 109 transitions, 276 flow. Second operand 3 states and 297 transitions. [2023-11-21 21:05:08,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 113 transitions, 306 flow [2023-11-21 21:05:08,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 113 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:08,975 INFO L231 Difference]: Finished difference. Result has 109 places, 111 transitions, 282 flow [2023-11-21 21:05:08,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=109, PETRI_TRANSITIONS=111} [2023-11-21 21:05:08,977 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 5 predicate places. [2023-11-21 21:05:08,977 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 111 transitions, 282 flow [2023-11-21 21:05:08,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-21 21:05:08,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:08,978 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] [2023-11-21 21:05:08,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:05:08,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 21:05:08,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:08,979 INFO L85 PathProgramCache]: Analyzing trace with hash 479277775, now seen corresponding path program 1 times [2023-11-21 21:05:08,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:08,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186272901] [2023-11-21 21:05:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:09,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186272901] [2023-11-21 21:05:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186272901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:09,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:09,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:09,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825484971] [2023-11-21 21:05:09,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:09,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:09,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:09,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:09,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:09,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-21 21:05:09,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 111 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-11-21 21:05:09,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:09,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-21 21:05:09,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:09,182 INFO L124 PetriNetUnfolderBase]: 54/466 cut-off events. [2023-11-21 21:05:09,183 INFO L125 PetriNetUnfolderBase]: For 65/87 co-relation queries the response was YES. [2023-11-21 21:05:09,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 466 events. 54/466 cut-off events. For 65/87 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2530 event pairs, 23 based on Foata normal form. 4/421 useless extension candidates. Maximal degree in co-relation 637. Up to 104 conditions per place. [2023-11-21 21:05:09,190 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 19 selfloop transitions, 7 changer transitions 0/118 dead transitions. [2023-11-21 21:05:09,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 118 transitions, 354 flow [2023-11-21 21:05:09,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:09,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2023-11-21 21:05:09,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2023-11-21 21:05:09,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2023-11-21 21:05:09,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2023-11-21 21:05:09,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:09,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2023-11-21 21:05:09,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2023-11-21 21:05:09,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:09,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:09,197 INFO L175 Difference]: Start difference. First operand has 109 places, 111 transitions, 282 flow. Second operand 3 states and 285 transitions. [2023-11-21 21:05:09,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 118 transitions, 354 flow [2023-11-21 21:05:09,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 118 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:09,207 INFO L231 Difference]: Finished difference. Result has 111 places, 116 transitions, 332 flow [2023-11-21 21:05:09,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=111, PETRI_TRANSITIONS=116} [2023-11-21 21:05:09,210 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 7 predicate places. [2023-11-21 21:05:09,211 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 116 transitions, 332 flow [2023-11-21 21:05:09,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2023-11-21 21:05:09,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:09,211 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] [2023-11-21 21:05:09,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:05:09,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 21:05:09,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash 81021741, now seen corresponding path program 1 times [2023-11-21 21:05:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:09,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331590936] [2023-11-21 21:05:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:09,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:09,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:09,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331590936] [2023-11-21 21:05:09,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331590936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:09,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:09,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:05:09,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413323052] [2023-11-21 21:05:09,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:09,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:05:09,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:09,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:05:09,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:05:09,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-21 21:05:09,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 116 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 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) [2023-11-21 21:05:09,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:09,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-21 21:05:09,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:10,116 INFO L124 PetriNetUnfolderBase]: 51/499 cut-off events. [2023-11-21 21:05:10,117 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-21 21:05:10,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 499 events. 51/499 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2599 event pairs, 12 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 676. Up to 62 conditions per place. [2023-11-21 21:05:10,121 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 16 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2023-11-21 21:05:10,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 123 transitions, 388 flow [2023-11-21 21:05:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:05:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:05:10,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2023-11-21 21:05:10,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.873015873015873 [2023-11-21 21:05:10,125 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions. [2023-11-21 21:05:10,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions. [2023-11-21 21:05:10,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:10,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions. [2023-11-21 21:05:10,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 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) [2023-11-21 21:05:10,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-21 21:05:10,131 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-21 21:05:10,131 INFO L175 Difference]: Start difference. First operand has 111 places, 116 transitions, 332 flow. Second operand 6 states and 550 transitions. [2023-11-21 21:05:10,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 123 transitions, 388 flow [2023-11-21 21:05:10,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:10,142 INFO L231 Difference]: Finished difference. Result has 113 places, 115 transitions, 326 flow [2023-11-21 21:05:10,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=113, PETRI_TRANSITIONS=115} [2023-11-21 21:05:10,144 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 9 predicate places. [2023-11-21 21:05:10,145 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 115 transitions, 326 flow [2023-11-21 21:05:10,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 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) [2023-11-21 21:05:10,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:10,146 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] [2023-11-21 21:05:10,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:05:10,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 21:05:10,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:10,149 INFO L85 PathProgramCache]: Analyzing trace with hash 455116739, now seen corresponding path program 1 times [2023-11-21 21:05:10,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:10,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111917689] [2023-11-21 21:05:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:10,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:10,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:10,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111917689] [2023-11-21 21:05:10,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111917689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:10,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:10,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:10,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764205444] [2023-11-21 21:05:10,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:10,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:10,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:10,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:10,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 105 [2023-11-21 21:05:10,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 115 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-11-21 21:05:10,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:10,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 105 [2023-11-21 21:05:10,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:10,341 INFO L124 PetriNetUnfolderBase]: 35/369 cut-off events. [2023-11-21 21:05:10,341 INFO L125 PetriNetUnfolderBase]: For 36/43 co-relation queries the response was YES. [2023-11-21 21:05:10,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 369 events. 35/369 cut-off events. For 36/43 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1931 event pairs, 9 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 482. Up to 51 conditions per place. [2023-11-21 21:05:10,345 INFO L140 encePairwiseOnDemand]: 100/105 looper letters, 8 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2023-11-21 21:05:10,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 118 transitions, 360 flow [2023-11-21 21:05:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:10,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2023-11-21 21:05:10,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.926984126984127 [2023-11-21 21:05:10,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2023-11-21 21:05:10,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2023-11-21 21:05:10,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:10,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2023-11-21 21:05:10,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-21 21:05:10,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:10,352 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:10,352 INFO L175 Difference]: Start difference. First operand has 113 places, 115 transitions, 326 flow. Second operand 3 states and 292 transitions. [2023-11-21 21:05:10,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 118 transitions, 360 flow [2023-11-21 21:05:10,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 350 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 21:05:10,358 INFO L231 Difference]: Finished difference. Result has 112 places, 118 transitions, 352 flow [2023-11-21 21:05:10,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=112, PETRI_TRANSITIONS=118} [2023-11-21 21:05:10,359 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 8 predicate places. [2023-11-21 21:05:10,359 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 118 transitions, 352 flow [2023-11-21 21:05:10,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-11-21 21:05:10,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:10,360 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] [2023-11-21 21:05:10,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:05:10,361 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 21:05:10,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash 188547963, now seen corresponding path program 1 times [2023-11-21 21:05:10,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:10,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126214035] [2023-11-21 21:05:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:10,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:10,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:10,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126214035] [2023-11-21 21:05:10,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126214035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:10,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:10,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:10,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545757730] [2023-11-21 21:05:10,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:10,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:10,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:10,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:10,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 105 [2023-11-21 21:05:10,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 118 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2023-11-21 21:05:10,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:10,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 105 [2023-11-21 21:05:10,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:10,528 INFO L124 PetriNetUnfolderBase]: 64/488 cut-off events. [2023-11-21 21:05:10,528 INFO L125 PetriNetUnfolderBase]: For 160/184 co-relation queries the response was YES. [2023-11-21 21:05:10,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 488 events. 64/488 cut-off events. For 160/184 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2800 event pairs, 13 based on Foata normal form. 1/451 useless extension candidates. Maximal degree in co-relation 805. Up to 109 conditions per place. [2023-11-21 21:05:10,532 INFO L140 encePairwiseOnDemand]: 98/105 looper letters, 16 selfloop transitions, 11 changer transitions 1/125 dead transitions. [2023-11-21 21:05:10,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 125 transitions, 434 flow [2023-11-21 21:05:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:10,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:10,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2023-11-21 21:05:10,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9142857142857143 [2023-11-21 21:05:10,535 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2023-11-21 21:05:10,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2023-11-21 21:05:10,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:10,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2023-11-21 21:05:10,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2023-11-21 21:05:10,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:10,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-21 21:05:10,538 INFO L175 Difference]: Start difference. First operand has 112 places, 118 transitions, 352 flow. Second operand 3 states and 288 transitions. [2023-11-21 21:05:10,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 125 transitions, 434 flow [2023-11-21 21:05:10,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 125 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:10,544 INFO L231 Difference]: Finished difference. Result has 114 places, 124 transitions, 426 flow [2023-11-21 21:05:10,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=114, PETRI_TRANSITIONS=124} [2023-11-21 21:05:10,545 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 10 predicate places. [2023-11-21 21:05:10,545 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 124 transitions, 426 flow [2023-11-21 21:05:10,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2023-11-21 21:05:10,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:10,546 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:10,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:05:10,547 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 21:05:10,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash 368128124, now seen corresponding path program 1 times [2023-11-21 21:05:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669866370] [2023-11-21 21:05:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:05:10,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:05:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:05:10,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:05:10,620 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:05:10,621 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-11-21 21:05:10,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-21 21:05:10,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-21 21:05:10,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-21 21:05:10,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-21 21:05:10,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-21 21:05:10,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-21 21:05:10,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-21 21:05:10,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-21 21:05:10,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-21 21:05:10,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-21 21:05:10,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-21 21:05:10,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 21:05:10,626 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:10,629 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 21:05:10,629 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 21:05:10,652 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 21:05:10,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 133 transitions, 276 flow [2023-11-21 21:05:10,689 INFO L124 PetriNetUnfolderBase]: 10/215 cut-off events. [2023-11-21 21:05:10,690 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 21:05:10,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 215 events. 10/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 313 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 138. Up to 6 conditions per place. [2023-11-21 21:05:10,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 133 transitions, 276 flow [2023-11-21 21:05:10,694 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 133 transitions, 276 flow [2023-11-21 21:05:10,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:05:10,696 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;@43f744bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:05:10,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-21 21:05:10,703 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:05:10,703 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-21 21:05:10,703 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:05:10,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:10,703 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] [2023-11-21 21:05:10,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:10,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:10,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1610333315, now seen corresponding path program 1 times [2023-11-21 21:05:10,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:10,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595520200] [2023-11-21 21:05:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:10,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:10,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595520200] [2023-11-21 21:05:10,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595520200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:10,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:10,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:10,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615654624] [2023-11-21 21:05:10,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:10,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:10,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:10,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:10,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 133 [2023-11-21 21:05:10,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2023-11-21 21:05:10,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:10,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 133 [2023-11-21 21:05:10,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:11,255 INFO L124 PetriNetUnfolderBase]: 563/2385 cut-off events. [2023-11-21 21:05:11,255 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-11-21 21:05:11,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3415 conditions, 2385 events. 563/2385 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 19826 event pairs, 195 based on Foata normal form. 38/2128 useless extension candidates. Maximal degree in co-relation 2689. Up to 666 conditions per place. [2023-11-21 21:05:11,281 INFO L140 encePairwiseOnDemand]: 115/133 looper letters, 26 selfloop transitions, 11 changer transitions 1/146 dead transitions. [2023-11-21 21:05:11,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 146 transitions, 381 flow [2023-11-21 21:05:11,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:11,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:11,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-11-21 21:05:11,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9348370927318296 [2023-11-21 21:05:11,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-11-21 21:05:11,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-11-21 21:05:11,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:11,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-11-21 21:05:11,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-11-21 21:05:11,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:11,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:11,289 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 276 flow. Second operand 3 states and 373 transitions. [2023-11-21 21:05:11,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 146 transitions, 381 flow [2023-11-21 21:05:11,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 381 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:05:11,293 INFO L231 Difference]: Finished difference. Result has 138 places, 140 transitions, 364 flow [2023-11-21 21:05:11,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=138, PETRI_TRANSITIONS=140} [2023-11-21 21:05:11,295 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 4 predicate places. [2023-11-21 21:05:11,295 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 140 transitions, 364 flow [2023-11-21 21:05:11,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2023-11-21 21:05:11,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:11,296 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] [2023-11-21 21:05:11,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 21:05:11,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:11,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash -912538754, now seen corresponding path program 1 times [2023-11-21 21:05:11,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:11,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094925791] [2023-11-21 21:05:11,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:11,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:11,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094925791] [2023-11-21 21:05:11,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094925791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:11,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:11,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483382510] [2023-11-21 21:05:11,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:11,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:11,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:11,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:11,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:11,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 133 [2023-11-21 21:05:11,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 140 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2023-11-21 21:05:11,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:11,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 133 [2023-11-21 21:05:11,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:11,880 INFO L124 PetriNetUnfolderBase]: 467/2561 cut-off events. [2023-11-21 21:05:11,880 INFO L125 PetriNetUnfolderBase]: For 229/235 co-relation queries the response was YES. [2023-11-21 21:05:11,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3914 conditions, 2561 events. 467/2561 cut-off events. For 229/235 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 23294 event pairs, 170 based on Foata normal form. 0/2292 useless extension candidates. Maximal degree in co-relation 3156. Up to 494 conditions per place. [2023-11-21 21:05:11,904 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 14 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2023-11-21 21:05:11,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 147 transitions, 414 flow [2023-11-21 21:05:11,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:11,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2023-11-21 21:05:11,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9423558897243107 [2023-11-21 21:05:11,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2023-11-21 21:05:11,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2023-11-21 21:05:11,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:11,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2023-11-21 21:05:11,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2023-11-21 21:05:11,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:11,913 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:11,913 INFO L175 Difference]: Start difference. First operand has 138 places, 140 transitions, 364 flow. Second operand 3 states and 376 transitions. [2023-11-21 21:05:11,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 147 transitions, 414 flow [2023-11-21 21:05:11,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:11,920 INFO L231 Difference]: Finished difference. Result has 139 places, 143 transitions, 372 flow [2023-11-21 21:05:11,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=139, PETRI_TRANSITIONS=143} [2023-11-21 21:05:11,923 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2023-11-21 21:05:11,924 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 143 transitions, 372 flow [2023-11-21 21:05:11,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2023-11-21 21:05:11,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:11,924 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] [2023-11-21 21:05:11,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 21:05:11,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:11,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:11,926 INFO L85 PathProgramCache]: Analyzing trace with hash -39093041, now seen corresponding path program 1 times [2023-11-21 21:05:11,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:11,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168008503] [2023-11-21 21:05:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:11,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:11,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:11,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168008503] [2023-11-21 21:05:11,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168008503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:11,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:11,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:11,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600546042] [2023-11-21 21:05:11,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:11,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:11,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:11,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:11,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:12,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 133 [2023-11-21 21:05:12,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 143 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-11-21 21:05:12,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:12,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 133 [2023-11-21 21:05:12,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:12,240 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [Black: 145#(= |#race~data~0| 0), 74#L704-1true, 143#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 39#L692-2true, 91#L689-3true, 149#true, Black: 137#true]) [2023-11-21 21:05:12,241 INFO L294 olderBase$Statistics]: this new event has 111 ancestors and is cut-off event [2023-11-21 21:05:12,241 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 21:05:12,241 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2023-11-21 21:05:12,241 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 21:05:12,497 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [8#L691-3true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), 143#true, threadThread1of2ForFork0InUse, 39#L692-2true, threadThread2of2ForFork0InUse, 149#true, Black: 137#true]) [2023-11-21 21:05:12,498 INFO L294 olderBase$Statistics]: this new event has 121 ancestors and is cut-off event [2023-11-21 21:05:12,498 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-21 21:05:12,498 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-21 21:05:12,498 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-21 21:05:12,896 INFO L124 PetriNetUnfolderBase]: 1076/4672 cut-off events. [2023-11-21 21:05:12,897 INFO L125 PetriNetUnfolderBase]: For 846/1155 co-relation queries the response was YES. [2023-11-21 21:05:12,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7812 conditions, 4672 events. 1076/4672 cut-off events. For 846/1155 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 46537 event pairs, 538 based on Foata normal form. 39/4075 useless extension candidates. Maximal degree in co-relation 6539. Up to 1374 conditions per place. [2023-11-21 21:05:12,950 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 28 selfloop transitions, 12 changer transitions 0/157 dead transitions. [2023-11-21 21:05:12,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 157 transitions, 496 flow [2023-11-21 21:05:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:12,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:12,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2023-11-21 21:05:12,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9097744360902256 [2023-11-21 21:05:12,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2023-11-21 21:05:12,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2023-11-21 21:05:12,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:12,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2023-11-21 21:05:12,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-11-21 21:05:12,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:12,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:12,959 INFO L175 Difference]: Start difference. First operand has 139 places, 143 transitions, 372 flow. Second operand 3 states and 363 transitions. [2023-11-21 21:05:12,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 157 transitions, 496 flow [2023-11-21 21:05:12,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 157 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:12,967 INFO L231 Difference]: Finished difference. Result has 141 places, 153 transitions, 470 flow [2023-11-21 21:05:12,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=141, PETRI_TRANSITIONS=153} [2023-11-21 21:05:12,969 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 7 predicate places. [2023-11-21 21:05:12,970 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 153 transitions, 470 flow [2023-11-21 21:05:12,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2023-11-21 21:05:12,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:12,970 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] [2023-11-21 21:05:12,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 21:05:12,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:12,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash -183609747, now seen corresponding path program 1 times [2023-11-21 21:05:12,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:12,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56466493] [2023-11-21 21:05:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:13,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:13,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56466493] [2023-11-21 21:05:13,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56466493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:13,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:13,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:05:13,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54450032] [2023-11-21 21:05:13,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:13,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:05:13,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:13,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:05:13,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:05:13,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 133 [2023-11-21 21:05:13,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 153 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 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) [2023-11-21 21:05:13,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:13,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 133 [2023-11-21 21:05:13,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:14,262 INFO L124 PetriNetUnfolderBase]: 832/4349 cut-off events. [2023-11-21 21:05:14,263 INFO L125 PetriNetUnfolderBase]: For 851/922 co-relation queries the response was YES. [2023-11-21 21:05:14,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7168 conditions, 4349 events. 832/4349 cut-off events. For 851/922 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 42060 event pairs, 248 based on Foata normal form. 1/3834 useless extension candidates. Maximal degree in co-relation 5680. Up to 714 conditions per place. [2023-11-21 21:05:14,314 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 27 selfloop transitions, 5 changer transitions 0/168 dead transitions. [2023-11-21 21:05:14,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 168 transitions, 564 flow [2023-11-21 21:05:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:05:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:05:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 711 transitions. [2023-11-21 21:05:14,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8909774436090225 [2023-11-21 21:05:14,318 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 711 transitions. [2023-11-21 21:05:14,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 711 transitions. [2023-11-21 21:05:14,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:14,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 711 transitions. [2023-11-21 21:05:14,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 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) [2023-11-21 21:05:14,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 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) [2023-11-21 21:05:14,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 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) [2023-11-21 21:05:14,324 INFO L175 Difference]: Start difference. First operand has 141 places, 153 transitions, 470 flow. Second operand 6 states and 711 transitions. [2023-11-21 21:05:14,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 168 transitions, 564 flow [2023-11-21 21:05:14,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 168 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:14,335 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 454 flow [2023-11-21 21:05:14,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=143, PETRI_TRANSITIONS=152} [2023-11-21 21:05:14,338 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 9 predicate places. [2023-11-21 21:05:14,338 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 454 flow [2023-11-21 21:05:14,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 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) [2023-11-21 21:05:14,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:14,339 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] [2023-11-21 21:05:14,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 21:05:14,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:14,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:14,340 INFO L85 PathProgramCache]: Analyzing trace with hash 841475336, now seen corresponding path program 1 times [2023-11-21 21:05:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:14,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400324076] [2023-11-21 21:05:14,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:14,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:14,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:14,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400324076] [2023-11-21 21:05:14,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400324076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:14,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:14,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:14,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768122562] [2023-11-21 21:05:14,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:14,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:14,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:14,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:14,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 133 [2023-11-21 21:05:14,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 152 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2023-11-21 21:05:14,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:14,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 133 [2023-11-21 21:05:14,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:15,149 INFO L124 PetriNetUnfolderBase]: 763/4023 cut-off events. [2023-11-21 21:05:15,149 INFO L125 PetriNetUnfolderBase]: For 694/1034 co-relation queries the response was YES. [2023-11-21 21:05:15,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6624 conditions, 4023 events. 763/4023 cut-off events. For 694/1034 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 42136 event pairs, 261 based on Foata normal form. 2/3504 useless extension candidates. Maximal degree in co-relation 5697. Up to 722 conditions per place. [2023-11-21 21:05:15,184 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 16 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2023-11-21 21:05:15,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 160 transitions, 527 flow [2023-11-21 21:05:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:15,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-11-21 21:05:15,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9323308270676691 [2023-11-21 21:05:15,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-11-21 21:05:15,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-11-21 21:05:15,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:15,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-11-21 21:05:15,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2023-11-21 21:05:15,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:15,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:15,191 INFO L175 Difference]: Start difference. First operand has 143 places, 152 transitions, 454 flow. Second operand 3 states and 372 transitions. [2023-11-21 21:05:15,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 160 transitions, 527 flow [2023-11-21 21:05:15,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 160 transitions, 517 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 21:05:15,197 INFO L231 Difference]: Finished difference. Result has 142 places, 157 transitions, 500 flow [2023-11-21 21:05:15,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=142, PETRI_TRANSITIONS=157} [2023-11-21 21:05:15,199 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places. [2023-11-21 21:05:15,199 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 157 transitions, 500 flow [2023-11-21 21:05:15,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2023-11-21 21:05:15,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:15,200 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] [2023-11-21 21:05:15,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 21:05:15,200 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:15,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1617934971, now seen corresponding path program 1 times [2023-11-21 21:05:15,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:15,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879330581] [2023-11-21 21:05:15,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:15,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:15,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:15,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879330581] [2023-11-21 21:05:15,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879330581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:15,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:05:15,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:05:15,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691315676] [2023-11-21 21:05:15,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:15,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:05:15,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:15,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:05:15,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:05:15,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 133 [2023-11-21 21:05:15,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 157 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2023-11-21 21:05:15,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:15,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 133 [2023-11-21 21:05:15,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:15,585 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [74#L704-1true, Black: 145#(= |#race~data~0| 0), threadThread1of2ForFork0InUse, 162#true, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 39#L692-2true, 91#L689-3true, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 137#true]) [2023-11-21 21:05:15,585 INFO L294 olderBase$Statistics]: this new event has 111 ancestors and is cut-off event [2023-11-21 21:05:15,585 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 21:05:15,585 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 21:05:15,585 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2023-11-21 21:05:15,925 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [8#L691-3true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), threadThread1of2ForFork0InUse, 162#true, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 39#L692-2true, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 137#true]) [2023-11-21 21:05:15,925 INFO L294 olderBase$Statistics]: this new event has 121 ancestors and is cut-off event [2023-11-21 21:05:15,925 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-21 21:05:15,925 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-21 21:05:15,925 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-21 21:05:16,133 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][130], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, 162#true, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 82#L692-7true, Black: 137#true]) [2023-11-21 21:05:16,134 INFO L294 olderBase$Statistics]: this new event has 129 ancestors and is cut-off event [2023-11-21 21:05:16,134 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2023-11-21 21:05:16,134 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-21 21:05:16,134 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-21 21:05:16,239 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), 162#true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 56#L693true, Black: 137#true]) [2023-11-21 21:05:16,239 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-21 21:05:16,239 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:16,239 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:16,239 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 21:05:16,381 INFO L124 PetriNetUnfolderBase]: 1583/6367 cut-off events. [2023-11-21 21:05:16,382 INFO L125 PetriNetUnfolderBase]: For 3302/3725 co-relation queries the response was YES. [2023-11-21 21:05:16,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12437 conditions, 6367 events. 1583/6367 cut-off events. For 3302/3725 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 67089 event pairs, 514 based on Foata normal form. 46/5559 useless extension candidates. Maximal degree in co-relation 10316. Up to 1833 conditions per place. [2023-11-21 21:05:16,441 INFO L140 encePairwiseOnDemand]: 124/133 looper letters, 31 selfloop transitions, 19 changer transitions 0/175 dead transitions. [2023-11-21 21:05:16,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 175 transitions, 685 flow [2023-11-21 21:05:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:05:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:05:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-11-21 21:05:16,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9197994987468672 [2023-11-21 21:05:16,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-11-21 21:05:16,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-11-21 21:05:16,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:16,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-11-21 21:05:16,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2023-11-21 21:05:16,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:16,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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) [2023-11-21 21:05:16,448 INFO L175 Difference]: Start difference. First operand has 142 places, 157 transitions, 500 flow. Second operand 3 states and 367 transitions. [2023-11-21 21:05:16,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 175 transitions, 685 flow [2023-11-21 21:05:16,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 175 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:16,457 INFO L231 Difference]: Finished difference. Result has 144 places, 172 transitions, 668 flow [2023-11-21 21:05:16,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=144, PETRI_TRANSITIONS=172} [2023-11-21 21:05:16,458 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 10 predicate places. [2023-11-21 21:05:16,458 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 172 transitions, 668 flow [2023-11-21 21:05:16,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2023-11-21 21:05:16,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:16,460 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] [2023-11-21 21:05:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 21:05:16,461 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:16,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:16,462 INFO L85 PathProgramCache]: Analyzing trace with hash 991610689, now seen corresponding path program 1 times [2023-11-21 21:05:16,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:16,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058894318] [2023-11-21 21:05:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:16,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:16,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:05:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058894318] [2023-11-21 21:05:16,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058894318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:05:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938524942] [2023-11-21 21:05:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:16,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:05:16,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:05:16,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:05:16,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 21:05:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:05:16,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:05:16,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:05:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:05:16,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:05:16,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938524942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:05:16,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:05:16,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-21 21:05:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589662891] [2023-11-21 21:05:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:05:16,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:05:16,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:05:16,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:05:16,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-21 21:05:16,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 133 [2023-11-21 21:05:16,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 172 transitions, 668 flow. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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) [2023-11-21 21:05:16,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:05:16,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 133 [2023-11-21 21:05:16,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:05:17,940 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][136], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 168#true, 82#L692-7true, Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-21 21:05:17,940 INFO L294 olderBase$Statistics]: this new event has 129 ancestors and is cut-off event [2023-11-21 21:05:17,941 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2023-11-21 21:05:17,941 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-21 21:05:17,941 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-21 21:05:17,943 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][136], [120#L692-2true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 82#L692-7true, Black: 137#true, 178#(<= 1 ~threads_alive~0)]) [2023-11-21 21:05:17,944 INFO L294 olderBase$Statistics]: this new event has 129 ancestors and is cut-off event [2023-11-21 21:05:17,944 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2023-11-21 21:05:17,944 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-21 21:05:17,944 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-21 21:05:18,089 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 88#L692-1true, threadThread2of2ForFork0InUse, 168#true, 56#L693true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-21 21:05:18,090 INFO L294 olderBase$Statistics]: this new event has 130 ancestors and is cut-off event [2023-11-21 21:05:18,090 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2023-11-21 21:05:18,090 INFO L297 olderBase$Statistics]: existing Event has 127 ancestors and is cut-off event [2023-11-21 21:05:18,090 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2023-11-21 21:05:18,093 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 168#true, 56#L693true, Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-21 21:05:18,093 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-21 21:05:18,094 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:18,094 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 21:05:18,094 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:18,163 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, 168#true, 56#L693true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-21 21:05:18,163 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-21 21:05:18,163 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:18,164 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 21:05:18,164 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:18,164 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 21:05:18,166 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 168#true, 56#L693true, Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 137#true, 178#(<= 1 ~threads_alive~0)]) [2023-11-21 21:05:18,166 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-21 21:05:18,166 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:18,166 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 21:05:18,167 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-21 21:05:18,600 INFO L124 PetriNetUnfolderBase]: 2633/9874 cut-off events. [2023-11-21 21:05:18,600 INFO L125 PetriNetUnfolderBase]: For 7226/8209 co-relation queries the response was YES. [2023-11-21 21:05:18,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21191 conditions, 9874 events. 2633/9874 cut-off events. For 7226/8209 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 113929 event pairs, 393 based on Foata normal form. 104/8795 useless extension candidates. Maximal degree in co-relation 16886. Up to 2221 conditions per place. [2023-11-21 21:05:18,703 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 36 selfloop transitions, 14 changer transitions 2/207 dead transitions. [2023-11-21 21:05:18,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 207 transitions, 843 flow [2023-11-21 21:05:18,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 21:05:18,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-21 21:05:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 851 transitions. [2023-11-21 21:05:18,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9140708915145005 [2023-11-21 21:05:18,707 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 851 transitions. [2023-11-21 21:05:18,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 851 transitions. [2023-11-21 21:05:18,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:05:18,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 851 transitions. [2023-11-21 21:05:18,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.57142857142857) internal successors, (851), 7 states have internal predecessors, (851), 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) [2023-11-21 21:05:18,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 133.0) internal successors, (1064), 8 states have internal predecessors, (1064), 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) [2023-11-21 21:05:18,715 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 133.0) internal successors, (1064), 8 states have internal predecessors, (1064), 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) [2023-11-21 21:05:18,716 INFO L175 Difference]: Start difference. First operand has 144 places, 172 transitions, 668 flow. Second operand 7 states and 851 transitions. [2023-11-21 21:05:18,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 207 transitions, 843 flow [2023-11-21 21:05:18,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 207 transitions, 805 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:05:18,781 INFO L231 Difference]: Finished difference. Result has 151 places, 185 transitions, 709 flow [2023-11-21 21:05:18,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=709, PETRI_PLACES=151, PETRI_TRANSITIONS=185} [2023-11-21 21:05:18,783 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 17 predicate places. [2023-11-21 21:05:18,784 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 185 transitions, 709 flow [2023-11-21 21:05:18,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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) [2023-11-21 21:05:18,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:05:18,785 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:18,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:05:19,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-21 21:05:19,001 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-21 21:05:19,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:05:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash 617417073, now seen corresponding path program 1 times [2023-11-21 21:05:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:05:19,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079085055] [2023-11-21 21:05:19,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:05:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:05:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:05:19,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:05:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:05:19,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:05:19,075 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:05:19,076 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-21 21:05:19,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-21 21:05:19,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-21 21:05:19,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-21 21:05:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-21 21:05:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-21 21:05:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-21 21:05:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-21 21:05:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-21 21:05:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-21 21:05:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-21 21:05:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-21 21:05:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-21 21:05:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-21 21:05:19,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-21 21:05:19,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 21:05:19,079 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:05:19,086 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-21 21:05:19,087 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:05:19,166 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-21 21:05:19,168 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-21 21:05:19,169 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 21:05:19,169 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 21:05:19,170 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,172 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-21 21:05:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-21 21:05:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,181 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,181 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-21 21:05:19,182 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-21 21:05:19,182 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-21 21:05:19,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:05:19 BasicIcfg [2023-11-21 21:05:19,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:05:19,195 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:05:19,195 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:05:19,196 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:05:19,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:05:07" (3/4) ... [2023-11-21 21:05:19,198 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:05:19,199 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:05:19,200 INFO L158 Benchmark]: Toolchain (without parser) took 12514.28ms. Allocated memory was 132.1MB in the beginning and 1.0GB in the end (delta: 895.5MB). Free memory was 83.4MB in the beginning and 770.6MB in the end (delta: -687.2MB). Peak memory consumption was 210.0MB. Max. memory is 16.1GB. [2023-11-21 21:05:19,200 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:05:19,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.93ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 83.0MB in the beginning and 130.3MB in the end (delta: -47.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2023-11-21 21:05:19,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.80ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:05:19,202 INFO L158 Benchmark]: Boogie Preprocessor took 45.30ms. Allocated memory is still 163.6MB. Free memory was 128.2MB in the beginning and 127.2MB in the end (delta: 971.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:05:19,202 INFO L158 Benchmark]: RCFGBuilder took 497.58ms. Allocated memory is still 163.6MB. Free memory was 127.2MB in the beginning and 111.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 21:05:19,203 INFO L158 Benchmark]: TraceAbstraction took 11279.07ms. Allocated memory was 163.6MB in the beginning and 1.0GB in the end (delta: 864.0MB). Free memory was 110.5MB in the beginning and 771.6MB in the end (delta: -661.1MB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. [2023-11-21 21:05:19,203 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 1.0GB. Free memory is still 770.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:05:19,206 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 132.1MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.93ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 83.0MB in the beginning and 130.3MB in the end (delta: -47.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.80ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.30ms. Allocated memory is still 163.6MB. Free memory was 128.2MB in the beginning and 127.2MB in the end (delta: 971.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 497.58ms. Allocated memory is still 163.6MB. Free memory was 127.2MB in the beginning and 111.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11279.07ms. Allocated memory was 163.6MB in the beginning and 1.0GB in the end (delta: 864.0MB). Free memory was 110.5MB in the beginning and 771.6MB in the end (delta: -661.1MB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 1.0GB. Free memory is still 770.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 692]: Data race detected [2023-11-21 21:05:19,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-21 21:05:19,250 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-21 21:05:19,251 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 21:05:19,251 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 21:05:19,251 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,252 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-21 21:05:19,252 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-21 21:05:19,252 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,254 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-21 21:05:19,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-21 21:05:19,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-21 21:05:19,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-21 21:05:19,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-21 21:05:19,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 21:05:19,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 21:05:19,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-21 21:05:19,295 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,295 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-21 21:05:19,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-21 21:05:19,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-21 21:05:19,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-21 21:05:19,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; VAL [threads_alive=0] [L686] 0 int data = 0; VAL [data=0, threads_alive=0] [L687] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}, threads_alive=0] [L696] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_alive=0, threads_total=2] [L697] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}, threads_alive=0] [L697] RET 0 assume_abort_if_not(threads_total >= 0) [L698] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=2] [L698] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=2] [L699] 0 threads_alive++ VAL [data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2] [L700] 0 pthread_t tid; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L701] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L690] 1 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=1] [L702] EXPR 0 \read(tid) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L702] 0 pthread_detach(tid) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L698] 0 i++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=1, threads_total=2, tid={5:0}] [L698] COND TRUE 0 i < threads_total VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=1, threads_total=2] [L699] 0 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] [L699] 0 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] Now there is a data race on ~threads_alive~0 between C: threads_alive++ [699] and C: threads_alive-- [692] - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 12 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: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 10 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=426occurred in iteration=6, 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, 0.9s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 158 locations, 15 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: 8.4s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 37 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=7, InterpolantAutomatonStates: 28, 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, 0.8s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 701 SizeOfPredicates, 2 NumberOfNonLiveVariables, 161 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 1/2 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-21 21:05:19,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27c2852c-980b-4861-8d26-1b55ad0377b0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE