./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cfd33ca5f647adf12592c5e71401ab9da35a49d8f2ec6d0757ea2cc237974cc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:53:55,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:53:55,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:53:55,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:53:55,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:53:55,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:53:55,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:53:55,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:53:55,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:53:55,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:53:55,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:53:55,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:53:55,969 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:53:55,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:53:55,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:53:55,971 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:53:55,971 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:53:55,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:53:55,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:53:55,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:53:55,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:53:55,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:53:55,974 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:53:55,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:53:55,975 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:53:55,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:53:55,976 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:53:55,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:53:55,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:53:55,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:53:55,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:55,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:53:55,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:53:55,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:53:55,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:53:55,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:53:55,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:53:55,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:53:55,981 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:53:55,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:53:55,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:53:55,984 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_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cfd33ca5f647adf12592c5e71401ab9da35a49d8f2ec6d0757ea2cc237974cc [2023-11-26 11:53:56,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:53:56,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:53:56,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:53:56,365 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:53:56,365 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:53:56,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c [2023-11-26 11:53:59,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:53:59,634 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:53:59,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c [2023-11-26 11:53:59,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/data/0fee70f21/2206cced4ed24a3bbb24c83c8aac412d/FLAGd5bd8480c [2023-11-26 11:53:59,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/data/0fee70f21/2206cced4ed24a3bbb24c83c8aac412d [2023-11-26 11:53:59,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:53:59,668 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:53:59,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:59,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:53:59,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:53:59,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:53:59,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c8fc9fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59, skipping insertion in model container [2023-11-26 11:53:59,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:53:59,702 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:53:59,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:59,901 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:53:59,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:59,976 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:53:59,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59 WrapperNode [2023-11-26 11:53:59,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:59,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:59,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:53:59,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:53:59,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,026 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-26 11:54:00,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:00,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:54:00,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:54:00,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:54:00,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:54:00,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:54:00,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:54:00,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:54:00,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (1/1) ... [2023-11-26 11:54:00,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:00,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:00,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:54:00,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:54:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:54:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:54:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:54:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:54:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:54:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:54:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:54:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:54:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:54:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:54:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:54:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:54:00,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:54:00,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:54:00,170 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:54:00,279 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:54:00,281 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:54:00,649 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:54:00,665 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:54:00,665 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 11:54:00,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:00 BoogieIcfgContainer [2023-11-26 11:54:00,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:54:00,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:54:00,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:54:00,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:54:00,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:53:59" (1/3) ... [2023-11-26 11:54:00,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2491d8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:00, skipping insertion in model container [2023-11-26 11:54:00,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:59" (2/3) ... [2023-11-26 11:54:00,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2491d8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:00, skipping insertion in model container [2023-11-26 11:54:00,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:00" (3/3) ... [2023-11-26 11:54:00,678 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.c [2023-11-26 11:54:00,688 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:54:00,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:54:00,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-26 11:54:00,701 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:54:00,832 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 11:54:00,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 201 transitions, 423 flow [2023-11-26 11:54:01,004 INFO L124 PetriNetUnfolderBase]: 7/198 cut-off events. [2023-11-26 11:54:01,005 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:54:01,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 198 events. 7/198 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 294 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 112. Up to 2 conditions per place. [2023-11-26 11:54:01,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 201 transitions, 423 flow [2023-11-26 11:54:01,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 175 transitions, 368 flow [2023-11-26 11:54:01,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:54:01,039 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;@6b271d03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:54:01,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-26 11:54:01,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:54:01,054 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-26 11:54:01,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:54:01,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:01,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:01,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:01,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash 115439741, now seen corresponding path program 1 times [2023-11-26 11:54:01,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:01,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027198339] [2023-11-26 11:54:01,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:01,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:01,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:01,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027198339] [2023-11-26 11:54:01,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027198339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:01,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:01,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:01,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221841462] [2023-11-26 11:54:01,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:01,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:01,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:01,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:01,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:01,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 201 [2023-11-26 11:54:01,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 175 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:01,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:01,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 201 [2023-11-26 11:54:01,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:01,654 INFO L124 PetriNetUnfolderBase]: 13/300 cut-off events. [2023-11-26 11:54:01,654 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-26 11:54:01,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 300 events. 13/300 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 941 event pairs, 5 based on Foata normal form. 18/270 useless extension candidates. Maximal degree in co-relation 189. Up to 25 conditions per place. [2023-11-26 11:54:01,662 INFO L140 encePairwiseOnDemand]: 195/201 looper letters, 11 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2023-11-26 11:54:01,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 171 transitions, 386 flow [2023-11-26 11:54:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:01,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-11-26 11:54:01,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9286898839137645 [2023-11-26 11:54:01,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-11-26 11:54:01,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-11-26 11:54:01,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:01,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-11-26 11:54:01,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:01,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:01,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:01,718 INFO L175 Difference]: Start difference. First operand has 179 places, 175 transitions, 368 flow. Second operand 3 states and 560 transitions. [2023-11-26 11:54:01,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 171 transitions, 386 flow [2023-11-26 11:54:01,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 171 transitions, 374 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 11:54:01,733 INFO L231 Difference]: Finished difference. Result has 174 places, 171 transitions, 352 flow [2023-11-26 11:54:01,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=174, PETRI_TRANSITIONS=171} [2023-11-26 11:54:01,740 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -5 predicate places. [2023-11-26 11:54:01,740 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 171 transitions, 352 flow [2023-11-26 11:54:01,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:01,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:01,741 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] [2023-11-26 11:54:01,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:54:01,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:01,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash 663194087, now seen corresponding path program 1 times [2023-11-26 11:54:01,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:01,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464641455] [2023-11-26 11:54:01,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:01,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:01,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:01,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464641455] [2023-11-26 11:54:01,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464641455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:01,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:01,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:01,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488130235] [2023-11-26 11:54:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:01,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:01,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:01,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:01,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:01,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 201 [2023-11-26 11:54:01,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 171 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:01,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:01,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 201 [2023-11-26 11:54:01,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:01,983 INFO L124 PetriNetUnfolderBase]: 11/251 cut-off events. [2023-11-26 11:54:01,983 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 11:54:01,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 251 events. 11/251 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 705 event pairs, 7 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 256. Up to 25 conditions per place. [2023-11-26 11:54:01,989 INFO L140 encePairwiseOnDemand]: 198/201 looper letters, 11 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-11-26 11:54:01,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 170 transitions, 376 flow [2023-11-26 11:54:01,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2023-11-26 11:54:01,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9237147595356551 [2023-11-26 11:54:01,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 557 transitions. [2023-11-26 11:54:01,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 557 transitions. [2023-11-26 11:54:01,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:01,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 557 transitions. [2023-11-26 11:54:01,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:01,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,003 INFO L175 Difference]: Start difference. First operand has 174 places, 171 transitions, 352 flow. Second operand 3 states and 557 transitions. [2023-11-26 11:54:02,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 170 transitions, 376 flow [2023-11-26 11:54:02,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 170 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:02,012 INFO L231 Difference]: Finished difference. Result has 173 places, 170 transitions, 350 flow [2023-11-26 11:54:02,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=173, PETRI_TRANSITIONS=170} [2023-11-26 11:54:02,014 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -6 predicate places. [2023-11-26 11:54:02,014 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 170 transitions, 350 flow [2023-11-26 11:54:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:02,016 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] [2023-11-26 11:54:02,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:54:02,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:02,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:02,022 INFO L85 PathProgramCache]: Analyzing trace with hash -677173141, now seen corresponding path program 1 times [2023-11-26 11:54:02,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:02,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246079844] [2023-11-26 11:54:02,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:02,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:02,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:02,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246079844] [2023-11-26 11:54:02,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246079844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:02,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:02,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:02,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720130625] [2023-11-26 11:54:02,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:02,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:02,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 201 [2023-11-26 11:54:02,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 170 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:02,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 201 [2023-11-26 11:54:02,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:02,269 INFO L124 PetriNetUnfolderBase]: 30/444 cut-off events. [2023-11-26 11:54:02,269 INFO L125 PetriNetUnfolderBase]: For 7/12 co-relation queries the response was YES. [2023-11-26 11:54:02,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 444 events. 30/444 cut-off events. For 7/12 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2123 event pairs, 15 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 472. Up to 52 conditions per place. [2023-11-26 11:54:02,274 INFO L140 encePairwiseOnDemand]: 198/201 looper letters, 12 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2023-11-26 11:54:02,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 169 transitions, 376 flow [2023-11-26 11:54:02,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:02,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2023-11-26 11:54:02,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9203980099502488 [2023-11-26 11:54:02,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2023-11-26 11:54:02,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2023-11-26 11:54:02,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:02,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2023-11-26 11:54:02,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,284 INFO L175 Difference]: Start difference. First operand has 173 places, 170 transitions, 350 flow. Second operand 3 states and 555 transitions. [2023-11-26 11:54:02,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 169 transitions, 376 flow [2023-11-26 11:54:02,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 169 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:02,290 INFO L231 Difference]: Finished difference. Result has 172 places, 169 transitions, 348 flow [2023-11-26 11:54:02,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=172, PETRI_TRANSITIONS=169} [2023-11-26 11:54:02,291 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -7 predicate places. [2023-11-26 11:54:02,291 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 169 transitions, 348 flow [2023-11-26 11:54:02,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:02,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:02,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:54:02,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:02,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash 187521389, now seen corresponding path program 1 times [2023-11-26 11:54:02,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:02,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068305273] [2023-11-26 11:54:02,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:02,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:02,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:02,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068305273] [2023-11-26 11:54:02,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068305273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:02,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:02,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:02,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027992728] [2023-11-26 11:54:02,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:02,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:02,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 201 [2023-11-26 11:54:02,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 169 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:02,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 201 [2023-11-26 11:54:02,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:02,545 INFO L124 PetriNetUnfolderBase]: 97/901 cut-off events. [2023-11-26 11:54:02,545 INFO L125 PetriNetUnfolderBase]: For 14/41 co-relation queries the response was YES. [2023-11-26 11:54:02,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 901 events. 97/901 cut-off events. For 14/41 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6085 event pairs, 41 based on Foata normal form. 0/733 useless extension candidates. Maximal degree in co-relation 1022. Up to 143 conditions per place. [2023-11-26 11:54:02,555 INFO L140 encePairwiseOnDemand]: 195/201 looper letters, 15 selfloop transitions, 3 changer transitions 0/171 dead transitions. [2023-11-26 11:54:02,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 171 transitions, 390 flow [2023-11-26 11:54:02,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2023-11-26 11:54:02,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9303482587064676 [2023-11-26 11:54:02,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 561 transitions. [2023-11-26 11:54:02,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 561 transitions. [2023-11-26 11:54:02,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:02,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 561 transitions. [2023-11-26 11:54:02,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,565 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,565 INFO L175 Difference]: Start difference. First operand has 172 places, 169 transitions, 348 flow. Second operand 3 states and 561 transitions. [2023-11-26 11:54:02,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 171 transitions, 390 flow [2023-11-26 11:54:02,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 171 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:02,571 INFO L231 Difference]: Finished difference. Result has 170 places, 169 transitions, 359 flow [2023-11-26 11:54:02,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=170, PETRI_TRANSITIONS=169} [2023-11-26 11:54:02,574 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -9 predicate places. [2023-11-26 11:54:02,574 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 169 transitions, 359 flow [2023-11-26 11:54:02,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:02,575 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] [2023-11-26 11:54:02,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:54:02,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:02,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:02,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1302286614, now seen corresponding path program 1 times [2023-11-26 11:54:02,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:02,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424382912] [2023-11-26 11:54:02,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:02,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:02,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:02,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:02,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424382912] [2023-11-26 11:54:02,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424382912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:02,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:02,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:02,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165790906] [2023-11-26 11:54:02,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:02,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:02,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:02,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:02,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:02,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:02,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 169 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:02,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:02,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:02,772 INFO L124 PetriNetUnfolderBase]: 27/392 cut-off events. [2023-11-26 11:54:02,772 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2023-11-26 11:54:02,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 392 events. 27/392 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1747 event pairs, 4 based on Foata normal form. 1/337 useless extension candidates. Maximal degree in co-relation 318. Up to 29 conditions per place. [2023-11-26 11:54:02,777 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 10 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2023-11-26 11:54:02,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 169 transitions, 387 flow [2023-11-26 11:54:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:02,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-26 11:54:02,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9353233830845771 [2023-11-26 11:54:02,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-26 11:54:02,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-26 11:54:02,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:02,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-26 11:54:02,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,788 INFO L175 Difference]: Start difference. First operand has 170 places, 169 transitions, 359 flow. Second operand 3 states and 564 transitions. [2023-11-26 11:54:02,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 169 transitions, 387 flow [2023-11-26 11:54:02,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 169 transitions, 387 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:54:02,794 INFO L231 Difference]: Finished difference. Result has 170 places, 167 transitions, 361 flow [2023-11-26 11:54:02,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=361, PETRI_PLACES=170, PETRI_TRANSITIONS=167} [2023-11-26 11:54:02,796 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -9 predicate places. [2023-11-26 11:54:02,796 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 167 transitions, 361 flow [2023-11-26 11:54:02,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:02,797 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] [2023-11-26 11:54:02,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:54:02,798 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:02,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:02,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1661937748, now seen corresponding path program 1 times [2023-11-26 11:54:02,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:02,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236173503] [2023-11-26 11:54:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:02,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:02,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:02,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236173503] [2023-11-26 11:54:02,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236173503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:02,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:02,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:02,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071054008] [2023-11-26 11:54:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:02,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:02,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:02,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:02,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:02,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 167 transitions, 361 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:02,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:02,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:02,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:03,057 INFO L124 PetriNetUnfolderBase]: 70/742 cut-off events. [2023-11-26 11:54:03,057 INFO L125 PetriNetUnfolderBase]: For 17/20 co-relation queries the response was YES. [2023-11-26 11:54:03,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 897 conditions, 742 events. 70/742 cut-off events. For 17/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4207 event pairs, 17 based on Foata normal form. 2/629 useless extension candidates. Maximal degree in co-relation 712. Up to 62 conditions per place. [2023-11-26 11:54:03,067 INFO L140 encePairwiseOnDemand]: 197/201 looper letters, 16 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2023-11-26 11:54:03,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 172 transitions, 412 flow [2023-11-26 11:54:03,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 569 transitions. [2023-11-26 11:54:03,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9436152570480929 [2023-11-26 11:54:03,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 569 transitions. [2023-11-26 11:54:03,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 569 transitions. [2023-11-26 11:54:03,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:03,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 569 transitions. [2023-11-26 11:54:03,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,077 INFO L175 Difference]: Start difference. First operand has 170 places, 167 transitions, 361 flow. Second operand 3 states and 569 transitions. [2023-11-26 11:54:03,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 172 transitions, 412 flow [2023-11-26 11:54:03,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 172 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:03,082 INFO L231 Difference]: Finished difference. Result has 169 places, 167 transitions, 365 flow [2023-11-26 11:54:03,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=169, PETRI_TRANSITIONS=167} [2023-11-26 11:54:03,084 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -10 predicate places. [2023-11-26 11:54:03,084 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 167 transitions, 365 flow [2023-11-26 11:54:03,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:03,085 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] [2023-11-26 11:54:03,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:54:03,086 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:03,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:03,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2063256337, now seen corresponding path program 1 times [2023-11-26 11:54:03,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:03,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871678009] [2023-11-26 11:54:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:03,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:03,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:03,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871678009] [2023-11-26 11:54:03,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871678009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:03,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:03,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:03,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672503388] [2023-11-26 11:54:03,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:03,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:03,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:03,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:03,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:03,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:03,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 167 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:03,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:03,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:03,303 INFO L124 PetriNetUnfolderBase]: 58/761 cut-off events. [2023-11-26 11:54:03,303 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 11:54:03,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 761 events. 58/761 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4691 event pairs, 20 based on Foata normal form. 0/647 useless extension candidates. Maximal degree in co-relation 728. Up to 59 conditions per place. [2023-11-26 11:54:03,312 INFO L140 encePairwiseOnDemand]: 198/201 looper letters, 12 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2023-11-26 11:54:03,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 168 transitions, 397 flow [2023-11-26 11:54:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-26 11:54:03,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9353233830845771 [2023-11-26 11:54:03,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-26 11:54:03,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-26 11:54:03,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:03,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-26 11:54:03,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,321 INFO L175 Difference]: Start difference. First operand has 169 places, 167 transitions, 365 flow. Second operand 3 states and 564 transitions. [2023-11-26 11:54:03,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 168 transitions, 397 flow [2023-11-26 11:54:03,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 168 transitions, 397 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:54:03,326 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 367 flow [2023-11-26 11:54:03,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2023-11-26 11:54:03,328 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -9 predicate places. [2023-11-26 11:54:03,328 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 367 flow [2023-11-26 11:54:03,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:03,329 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] [2023-11-26 11:54:03,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:54:03,329 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:03,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1171106405, now seen corresponding path program 1 times [2023-11-26 11:54:03,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:03,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859552115] [2023-11-26 11:54:03,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:03,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:03,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:03,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859552115] [2023-11-26 11:54:03,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859552115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:03,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:03,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:03,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127138624] [2023-11-26 11:54:03,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:03,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:03,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:03,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:03,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:03,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:03,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:03,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:03,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:03,595 INFO L124 PetriNetUnfolderBase]: 57/655 cut-off events. [2023-11-26 11:54:03,595 INFO L125 PetriNetUnfolderBase]: For 17/27 co-relation queries the response was YES. [2023-11-26 11:54:03,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 655 events. 57/655 cut-off events. For 17/27 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3653 event pairs, 14 based on Foata normal form. 3/578 useless extension candidates. Maximal degree in co-relation 596. Up to 49 conditions per place. [2023-11-26 11:54:03,604 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 10 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2023-11-26 11:54:03,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 395 flow [2023-11-26 11:54:03,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:03,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:03,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-26 11:54:03,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9353233830845771 [2023-11-26 11:54:03,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-26 11:54:03,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-26 11:54:03,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:03,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-26 11:54:03,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,611 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 367 flow. Second operand 3 states and 564 transitions. [2023-11-26 11:54:03,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 395 flow [2023-11-26 11:54:03,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 391 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:03,617 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 365 flow [2023-11-26 11:54:03,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2023-11-26 11:54:03,621 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -11 predicate places. [2023-11-26 11:54:03,622 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 365 flow [2023-11-26 11:54:03,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:03,622 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] [2023-11-26 11:54:03,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:54:03,623 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:03,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash -151807651, now seen corresponding path program 1 times [2023-11-26 11:54:03,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:03,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764007985] [2023-11-26 11:54:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:03,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:03,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:03,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764007985] [2023-11-26 11:54:03,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764007985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:03,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:03,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:03,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996371390] [2023-11-26 11:54:03,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:03,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:03,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:03,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:03,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:03,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:03,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:03,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:03,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:03,906 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][94], [75#L42-2true, 179#L75-4true, 164#L58-2true, 243#(= |#race~b~0| 0), 221#(= |#race~c~0| 0), Black: 228#true, 230#(= |#race~a~0| 0), 237#true, 142#L50-2true, Black: 219#true]) [2023-11-26 11:54:03,906 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-26 11:54:03,907 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:54:03,907 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-26 11:54:03,907 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:54:03,942 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][94], [164#L58-2true, 243#(= |#race~b~0| 0), 221#(= |#race~c~0| 0), Black: 228#true, 53#L76-7true, 230#(= |#race~a~0| 0), 237#true, 142#L50-2true, Black: 219#true]) [2023-11-26 11:54:03,942 INFO L294 olderBase$Statistics]: this new event has 109 ancestors and is cut-off event [2023-11-26 11:54:03,942 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2023-11-26 11:54:03,942 INFO L297 olderBase$Statistics]: existing Event has 94 ancestors and is cut-off event [2023-11-26 11:54:03,943 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-26 11:54:03,953 INFO L124 PetriNetUnfolderBase]: 140/1021 cut-off events. [2023-11-26 11:54:03,953 INFO L125 PetriNetUnfolderBase]: For 33/37 co-relation queries the response was YES. [2023-11-26 11:54:03,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1021 events. 140/1021 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 6862 event pairs, 21 based on Foata normal form. 2/902 useless extension candidates. Maximal degree in co-relation 1019. Up to 146 conditions per place. [2023-11-26 11:54:03,966 INFO L140 encePairwiseOnDemand]: 197/201 looper letters, 15 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2023-11-26 11:54:03,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 168 transitions, 411 flow [2023-11-26 11:54:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2023-11-26 11:54:03,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419568822553898 [2023-11-26 11:54:03,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2023-11-26 11:54:03,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2023-11-26 11:54:03,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:03,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2023-11-26 11:54:03,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,974 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 365 flow. Second operand 3 states and 568 transitions. [2023-11-26 11:54:03,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 168 transitions, 411 flow [2023-11-26 11:54:03,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 168 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:03,982 INFO L231 Difference]: Finished difference. Result has 167 places, 164 transitions, 369 flow [2023-11-26 11:54:03,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=167, PETRI_TRANSITIONS=164} [2023-11-26 11:54:03,983 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -12 predicate places. [2023-11-26 11:54:03,983 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 164 transitions, 369 flow [2023-11-26 11:54:03,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:03,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:03,984 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] [2023-11-26 11:54:03,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:54:03,984 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:03,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:03,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1215697760, now seen corresponding path program 1 times [2023-11-26 11:54:03,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:03,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774413473] [2023-11-26 11:54:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:03,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:04,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774413473] [2023-11-26 11:54:04,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774413473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:04,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:04,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:04,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541531084] [2023-11-26 11:54:04,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:04,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:04,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:04,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:04,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:04,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:04,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 164 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:04,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:04,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:04,237 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][93], [75#L42-2true, 179#L75-4true, Black: 241#true, 164#L58-2true, 243#(= |#race~b~0| 0), 221#(= |#race~c~0| 0), Black: 228#true, 246#true, 230#(= |#race~a~0| 0), 142#L50-2true, Black: 219#true]) [2023-11-26 11:54:04,237 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-26 11:54:04,237 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:54:04,237 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:54:04,237 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-26 11:54:04,282 INFO L124 PetriNetUnfolderBase]: 125/1048 cut-off events. [2023-11-26 11:54:04,282 INFO L125 PetriNetUnfolderBase]: For 33/36 co-relation queries the response was YES. [2023-11-26 11:54:04,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 1048 events. 125/1048 cut-off events. For 33/36 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7194 event pairs, 41 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1053. Up to 100 conditions per place. [2023-11-26 11:54:04,295 INFO L140 encePairwiseOnDemand]: 198/201 looper letters, 12 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2023-11-26 11:54:04,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 165 transitions, 401 flow [2023-11-26 11:54:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-26 11:54:04,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9353233830845771 [2023-11-26 11:54:04,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-26 11:54:04,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-26 11:54:04,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:04,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-26 11:54:04,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,303 INFO L175 Difference]: Start difference. First operand has 167 places, 164 transitions, 369 flow. Second operand 3 states and 564 transitions. [2023-11-26 11:54:04,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 165 transitions, 401 flow [2023-11-26 11:54:04,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 401 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:54:04,309 INFO L231 Difference]: Finished difference. Result has 168 places, 163 transitions, 371 flow [2023-11-26 11:54:04,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=168, PETRI_TRANSITIONS=163} [2023-11-26 11:54:04,311 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -11 predicate places. [2023-11-26 11:54:04,312 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 163 transitions, 371 flow [2023-11-26 11:54:04,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:04,312 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] [2023-11-26 11:54:04,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:54:04,313 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:04,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash -652305253, now seen corresponding path program 1 times [2023-11-26 11:54:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:04,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943028790] [2023-11-26 11:54:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:04,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:04,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:04,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:04,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943028790] [2023-11-26 11:54:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943028790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:04,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:04,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:04,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434979393] [2023-11-26 11:54:04,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:04,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:04,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:04,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:04,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:04,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:04,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 163 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:04,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:04,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:04,511 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][93], [75#L42-2true, 179#L75-4true, Black: 241#true, 164#L58-2true, Black: 228#true, 250#true, 243#(= |#race~b~0| 0), 221#(= |#race~c~0| 0), 246#true, 230#(= |#race~a~0| 0), 142#L50-2true, Black: 219#true]) [2023-11-26 11:54:04,511 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-26 11:54:04,511 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:54:04,511 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:54:04,511 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-26 11:54:04,545 INFO L124 PetriNetUnfolderBase]: 101/768 cut-off events. [2023-11-26 11:54:04,545 INFO L125 PetriNetUnfolderBase]: For 37/61 co-relation queries the response was YES. [2023-11-26 11:54:04,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 768 events. 101/768 cut-off events. For 37/61 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4716 event pairs, 16 based on Foata normal form. 10/707 useless extension candidates. Maximal degree in co-relation 839. Up to 67 conditions per place. [2023-11-26 11:54:04,555 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 8 selfloop transitions, 2 changer transitions 7/163 dead transitions. [2023-11-26 11:54:04,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 397 flow [2023-11-26 11:54:04,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:04,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2023-11-26 11:54:04,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9336650082918739 [2023-11-26 11:54:04,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 563 transitions. [2023-11-26 11:54:04,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 563 transitions. [2023-11-26 11:54:04,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:04,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 563 transitions. [2023-11-26 11:54:04,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,563 INFO L175 Difference]: Start difference. First operand has 168 places, 163 transitions, 371 flow. Second operand 3 states and 563 transitions. [2023-11-26 11:54:04,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 397 flow [2023-11-26 11:54:04,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 163 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:04,568 INFO L231 Difference]: Finished difference. Result has 166 places, 154 transitions, 352 flow [2023-11-26 11:54:04,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=166, PETRI_TRANSITIONS=154} [2023-11-26 11:54:04,569 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -13 predicate places. [2023-11-26 11:54:04,569 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 154 transitions, 352 flow [2023-11-26 11:54:04,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:04,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:04,570 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] [2023-11-26 11:54:04,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:54:04,570 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:04,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:04,571 INFO L85 PathProgramCache]: Analyzing trace with hash -111244852, now seen corresponding path program 1 times [2023-11-26 11:54:04,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:04,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521495012] [2023-11-26 11:54:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:04,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:05,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:05,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521495012] [2023-11-26 11:54:05,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521495012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:05,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:05,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916327847] [2023-11-26 11:54:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:05,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:05,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 201 [2023-11-26 11:54:05,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 154 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 181.66666666666666) internal successors, (1090), 6 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:05,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 201 [2023-11-26 11:54:05,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:05,432 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][93], [75#L42-2true, 179#L75-4true, Black: 241#true, 164#L58-2true, 250#true, Black: 228#true, 221#(= |#race~c~0| 0), 243#(= |#race~b~0| 0), 254#true, 230#(= |#race~a~0| 0), 142#L50-2true, Black: 219#true]) [2023-11-26 11:54:05,433 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-26 11:54:05,433 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-26 11:54:05,433 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:54:05,433 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:54:05,473 INFO L124 PetriNetUnfolderBase]: 61/602 cut-off events. [2023-11-26 11:54:05,473 INFO L125 PetriNetUnfolderBase]: For 8/27 co-relation queries the response was YES. [2023-11-26 11:54:05,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 602 events. 61/602 cut-off events. For 8/27 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3317 event pairs, 10 based on Foata normal form. 12/557 useless extension candidates. Maximal degree in co-relation 604. Up to 59 conditions per place. [2023-11-26 11:54:05,480 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 8 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2023-11-26 11:54:05,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 153 transitions, 374 flow [2023-11-26 11:54:05,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1093 transitions. [2023-11-26 11:54:05,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.906301824212272 [2023-11-26 11:54:05,486 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1093 transitions. [2023-11-26 11:54:05,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1093 transitions. [2023-11-26 11:54:05,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:05,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1093 transitions. [2023-11-26 11:54:05,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,496 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,496 INFO L175 Difference]: Start difference. First operand has 166 places, 154 transitions, 352 flow. Second operand 6 states and 1093 transitions. [2023-11-26 11:54:05,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 153 transitions, 374 flow [2023-11-26 11:54:05,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 153 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:05,501 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 354 flow [2023-11-26 11:54:05,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2023-11-26 11:54:05,503 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -18 predicate places. [2023-11-26 11:54:05,503 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 354 flow [2023-11-26 11:54:05,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.66666666666666) internal successors, (1090), 6 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:05,504 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] [2023-11-26 11:54:05,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:54:05,504 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:05,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2069986302, now seen corresponding path program 1 times [2023-11-26 11:54:05,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:05,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58670099] [2023-11-26 11:54:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:05,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:05,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:05,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58670099] [2023-11-26 11:54:05,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58670099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:05,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:05,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958837576] [2023-11-26 11:54:05,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:05,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:05,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:05,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:05,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:05,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 201 [2023-11-26 11:54:05,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:05,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 201 [2023-11-26 11:54:05,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:05,730 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][93], [75#L42-2true, 179#L75-4true, Black: 241#true, 164#L58-2true, 243#(= |#race~b~0| 0), 221#(= |#race~c~0| 0), Black: 228#true, 254#true, 230#(= |#race~a~0| 0), 142#L50-2true, Black: 219#true, 261#true]) [2023-11-26 11:54:05,731 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-26 11:54:05,731 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-26 11:54:05,731 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:54:05,731 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:54:05,759 INFO L124 PetriNetUnfolderBase]: 110/737 cut-off events. [2023-11-26 11:54:05,759 INFO L125 PetriNetUnfolderBase]: For 42/56 co-relation queries the response was YES. [2023-11-26 11:54:05,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 737 events. 110/737 cut-off events. For 42/56 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4438 event pairs, 29 based on Foata normal form. 1/679 useless extension candidates. Maximal degree in co-relation 941. Up to 75 conditions per place. [2023-11-26 11:54:05,768 INFO L140 encePairwiseOnDemand]: 198/201 looper letters, 10 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-11-26 11:54:05,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 154 transitions, 382 flow [2023-11-26 11:54:05,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:05,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2023-11-26 11:54:05,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9320066334991708 [2023-11-26 11:54:05,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 562 transitions. [2023-11-26 11:54:05,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 562 transitions. [2023-11-26 11:54:05,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:05,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 562 transitions. [2023-11-26 11:54:05,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,778 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 354 flow. Second operand 3 states and 562 transitions. [2023-11-26 11:54:05,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 154 transitions, 382 flow [2023-11-26 11:54:05,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 154 transitions, 375 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:54:05,784 INFO L231 Difference]: Finished difference. Result has 158 places, 152 transitions, 349 flow [2023-11-26 11:54:05,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=158, PETRI_TRANSITIONS=152} [2023-11-26 11:54:05,785 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -21 predicate places. [2023-11-26 11:54:05,786 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 152 transitions, 349 flow [2023-11-26 11:54:05,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:05,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:05,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:05,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:54:05,787 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:05,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1440292780, now seen corresponding path program 1 times [2023-11-26 11:54:05,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:05,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505276052] [2023-11-26 11:54:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:05,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:06,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:06,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505276052] [2023-11-26 11:54:06,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505276052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:06,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:06,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:06,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139428810] [2023-11-26 11:54:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:06,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:06,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:06,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:06,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:06,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 201 [2023-11-26 11:54:06,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 152 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:06,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:06,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 201 [2023-11-26 11:54:06,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:06,819 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][93], [265#true, 75#L42-2true, 179#L75-4true, Black: 241#true, 164#L58-2true, Black: 228#true, 243#(= |#race~b~0| 0), 221#(= |#race~c~0| 0), 230#(= |#race~a~0| 0), 142#L50-2true, Black: 219#true, 261#true]) [2023-11-26 11:54:06,819 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-26 11:54:06,819 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:54:06,819 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:54:06,819 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-26 11:54:06,834 INFO L124 PetriNetUnfolderBase]: 61/593 cut-off events. [2023-11-26 11:54:06,834 INFO L125 PetriNetUnfolderBase]: For 4/18 co-relation queries the response was YES. [2023-11-26 11:54:06,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 593 events. 61/593 cut-off events. For 4/18 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3246 event pairs, 10 based on Foata normal form. 8/553 useless extension candidates. Maximal degree in co-relation 690. Up to 59 conditions per place. [2023-11-26 11:54:06,842 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 8 selfloop transitions, 4 changer transitions 0/151 dead transitions. [2023-11-26 11:54:06,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 151 transitions, 371 flow [2023-11-26 11:54:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1093 transitions. [2023-11-26 11:54:06,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.906301824212272 [2023-11-26 11:54:06,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1093 transitions. [2023-11-26 11:54:06,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1093 transitions. [2023-11-26 11:54:06,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:06,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1093 transitions. [2023-11-26 11:54:06,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:06,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:06,855 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:06,855 INFO L175 Difference]: Start difference. First operand has 158 places, 152 transitions, 349 flow. Second operand 6 states and 1093 transitions. [2023-11-26 11:54:06,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 151 transitions, 371 flow [2023-11-26 11:54:06,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 151 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:06,860 INFO L231 Difference]: Finished difference. Result has 160 places, 151 transitions, 351 flow [2023-11-26 11:54:06,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=160, PETRI_TRANSITIONS=151} [2023-11-26 11:54:06,861 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -19 predicate places. [2023-11-26 11:54:06,861 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 151 transitions, 351 flow [2023-11-26 11:54:06,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:06,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:06,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:06,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:54:06,863 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-26 11:54:06,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash -47222318, now seen corresponding path program 1 times [2023-11-26 11:54:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:06,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244448521] [2023-11-26 11:54:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:07,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:07,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244448521] [2023-11-26 11:54:07,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244448521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:07,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:07,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:07,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425407599] [2023-11-26 11:54:07,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:07,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:07,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:07,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:07,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 201 [2023-11-26 11:54:07,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 151 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:07,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:07,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 201 [2023-11-26 11:54:07,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:07,992 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([485] L58-8-->L58-2: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][93], [265#true, 75#L42-2true, 179#L75-4true, Black: 241#true, 164#L58-2true, 243#(= |#race~b~0| 0), 221#(= |#race~c~0| 0), Black: 228#true, 230#(= |#race~a~0| 0), 272#true, 142#L50-2true, Black: 219#true]) [2023-11-26 11:54:07,992 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-26 11:54:07,992 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:54:07,993 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:54:07,993 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-26 11:54:08,005 INFO L124 PetriNetUnfolderBase]: 61/586 cut-off events. [2023-11-26 11:54:08,005 INFO L125 PetriNetUnfolderBase]: For 9/13 co-relation queries the response was YES. [2023-11-26 11:54:08,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 586 events. 61/586 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3213 event pairs, 10 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 702. Up to 59 conditions per place. [2023-11-26 11:54:08,010 INFO L140 encePairwiseOnDemand]: 196/201 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2023-11-26 11:54:08,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 150 transitions, 373 flow [2023-11-26 11:54:08,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:08,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1093 transitions. [2023-11-26 11:54:08,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.906301824212272 [2023-11-26 11:54:08,015 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1093 transitions. [2023-11-26 11:54:08,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1093 transitions. [2023-11-26 11:54:08,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:08,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1093 transitions. [2023-11-26 11:54:08,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:08,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:08,024 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:08,024 INFO L175 Difference]: Start difference. First operand has 160 places, 151 transitions, 351 flow. Second operand 6 states and 1093 transitions. [2023-11-26 11:54:08,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 150 transitions, 373 flow [2023-11-26 11:54:08,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 150 transitions, 366 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:54:08,027 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2023-11-26 11:54:08,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2023-11-26 11:54:08,030 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -19 predicate places. [2023-11-26 11:54:08,030 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2023-11-26 11:54:08,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:08,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-11-26 11:54:08,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-11-26 11:54:08,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-11-26 11:54:08,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-11-26 11:54:08,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-11-26 11:54:08,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-11-26 11:54:08,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-11-26 11:54:08,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-11-26 11:54:08,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-11-26 11:54:08,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-11-26 11:54:08,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-11-26 11:54:08,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-11-26 11:54:08,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-11-26 11:54:08,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-11-26 11:54:08,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-11-26 11:54:08,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-11-26 11:54:08,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-11-26 11:54:08,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-11-26 11:54:08,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-11-26 11:54:08,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-11-26 11:54:08,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-11-26 11:54:08,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-11-26 11:54:08,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2023-11-26 11:54:08,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2023-11-26 11:54:08,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-11-26 11:54:08,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-11-26 11:54:08,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-11-26 11:54:08,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-11-26 11:54:08,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-11-26 11:54:08,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-11-26 11:54:08,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-11-26 11:54:08,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-11-26 11:54:08,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-11-26 11:54:08,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-11-26 11:54:08,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-11-26 11:54:08,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-11-26 11:54:08,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-11-26 11:54:08,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-11-26 11:54:08,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:54:08,044 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:08,051 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:54:08,051 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:54:08,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:54:08 BasicIcfg [2023-11-26 11:54:08,059 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:54:08,059 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:54:08,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:54:08,060 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:54:08,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:00" (3/4) ... [2023-11-26 11:54:08,063 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:54:08,067 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:54:08,067 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:54:08,067 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-26 11:54:08,075 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-26 11:54:08,075 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:54:08,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:54:08,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:54:08,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:54:08,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:54:08,192 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:54:08,193 INFO L158 Benchmark]: Toolchain (without parser) took 8525.38ms. Allocated memory was 159.4MB in the beginning and 255.9MB in the end (delta: 96.5MB). Free memory was 116.6MB in the beginning and 224.0MB in the end (delta: -107.3MB). Peak memory consumption was 142.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:08,193 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:54:08,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.92ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 104.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:54:08,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.19ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 102.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:54:08,195 INFO L158 Benchmark]: Boogie Preprocessor took 37.80ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 100.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:54:08,195 INFO L158 Benchmark]: RCFGBuilder took 597.15ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 81.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:54:08,195 INFO L158 Benchmark]: TraceAbstraction took 7388.32ms. Allocated memory was 159.4MB in the beginning and 255.9MB in the end (delta: 96.5MB). Free memory was 80.6MB in the beginning and 78.8MB in the end (delta: 1.8MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. [2023-11-26 11:54:08,196 INFO L158 Benchmark]: Witness Printer took 133.18ms. Allocated memory is still 255.9MB. Free memory was 78.8MB in the beginning and 224.0MB in the end (delta: -145.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-11-26 11:54:08,200 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.92ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 104.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.19ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 102.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.80ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 100.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.15ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 81.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7388.32ms. Allocated memory was 159.4MB in the beginning and 255.9MB in the end (delta: 96.5MB). Free memory was 80.6MB in the beginning and 78.8MB in the end (delta: 1.8MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. * Witness Printer took 133.18ms. Allocated memory is still 255.9MB. Free memory was 78.8MB in the beginning and 224.0MB in the end (delta: -145.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 276 locations, 38 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: 7.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 445 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 783 IncrementalHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 150 mSolverCounterUnsat, 59 mSDtfsCounter, 783 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=371occurred in iteration=10, InterpolantAutomatonStates: 54, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 825 NumberOfCodeBlocks, 825 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 810 ConstructedInterpolants, 0 QuantifiedInterpolants, 1077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:54:08,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72e03f8-9eff-449c-a5d9-61c3ae468833/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE