./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU --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 e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:24,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:25,026 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:06:25,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:25,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:25,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:25,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:25,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:25,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:25,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:25,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:25,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:25,077 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:25,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:25,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:25,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:25,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:25,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:25,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:25,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:25,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:25,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:25,086 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:06:25,086 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:25,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:25,087 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:25,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:25,087 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:25,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:25,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:25,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:25,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:25,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:25,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:25,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:25,092 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:25,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:25,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:25,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:25,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:25,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:25,094 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_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de [2024-10-31 22:06:25,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:25,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:25,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:25,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:25,624 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:25,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i Unable to find full path for "g++" [2024-10-31 22:06:27,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:27,954 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:27,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-10-31 22:06:27,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/data/21649ec1d/73647debd87f424faf999d3bdb35e424/FLAG4e28817df [2024-10-31 22:06:28,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/data/21649ec1d/73647debd87f424faf999d3bdb35e424 [2024-10-31 22:06:28,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:28,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:28,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:28,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:28,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:28,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:28" (1/1) ... [2024-10-31 22:06:28,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd6fb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:28, skipping insertion in model container [2024-10-31 22:06:28,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:28" (1/1) ... [2024-10-31 22:06:28,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:29,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:29,054 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:29,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:29,219 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:29,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29 WrapperNode [2024-10-31 22:06:29,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:29,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:29,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:29,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:29,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,273 INFO L138 Inliner]: procedures = 267, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-10-31 22:06:29,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:29,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:29,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:29,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:29,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:29,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:29,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:29,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:29,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (1/1) ... [2024-10-31 22:06:29,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:29,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:29,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:29,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 22:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:06:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:06:29,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:06:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:29,400 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:29,547 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:29,550 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:29,905 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:29,905 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:29,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:29,942 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:06:29,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:29 BoogieIcfgContainer [2024-10-31 22:06:29,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:29,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:29,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:29,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:29,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:28" (1/3) ... [2024-10-31 22:06:29,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe6a6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:29, skipping insertion in model container [2024-10-31 22:06:29,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:29" (2/3) ... [2024-10-31 22:06:29,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe6a6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:29, skipping insertion in model container [2024-10-31 22:06:29,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:29" (3/3) ... [2024-10-31 22:06:29,954 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid-join.i [2024-10-31 22:06:29,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:29,979 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:06:29,979 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:30,055 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:06:30,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 121 transitions, 249 flow [2024-10-31 22:06:30,197 INFO L124 PetriNetUnfolderBase]: 6/174 cut-off events. [2024-10-31 22:06:30,197 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:06:30,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 174 events. 6/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-10-31 22:06:30,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 121 transitions, 249 flow [2024-10-31 22:06:30,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 121 transitions, 249 flow [2024-10-31 22:06:30,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:30,254 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@3320879e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:30,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-31 22:06:30,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:30,279 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:06:30,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:30,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:30,280 INFO L204 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] [2024-10-31 22:06:30,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:30,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1252820999, now seen corresponding path program 1 times [2024-10-31 22:06:30,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:30,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368787058] [2024-10-31 22:06:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:30,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368787058] [2024-10-31 22:06:30,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368787058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:30,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:30,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:30,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699310686] [2024-10-31 22:06:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:30,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:30,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:30,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 121 [2024-10-31 22:06:30,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:30,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:30,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 121 [2024-10-31 22:06:30,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:30,789 INFO L124 PetriNetUnfolderBase]: 8/212 cut-off events. [2024-10-31 22:06:30,790 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-31 22:06:30,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 212 events. 8/212 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 526 event pairs, 1 based on Foata normal form. 8/197 useless extension candidates. Maximal degree in co-relation 142. Up to 16 conditions per place. [2024-10-31 22:06:30,792 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 8 selfloop transitions, 3 changer transitions 2/122 dead transitions. [2024-10-31 22:06:30,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 122 transitions, 275 flow [2024-10-31 22:06:30,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:30,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-10-31 22:06:30,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953168044077135 [2024-10-31 22:06:30,809 INFO L175 Difference]: Start difference. First operand has 120 places, 121 transitions, 249 flow. Second operand 3 states and 346 transitions. [2024-10-31 22:06:30,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 122 transitions, 275 flow [2024-10-31 22:06:30,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 122 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:30,818 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 263 flow [2024-10-31 22:06:30,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2024-10-31 22:06:30,824 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-10-31 22:06:30,825 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 263 flow [2024-10-31 22:06:30,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:30,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:30,826 INFO L204 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] [2024-10-31 22:06:30,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:30,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:30,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash 419048417, now seen corresponding path program 1 times [2024-10-31 22:06:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:30,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322536704] [2024-10-31 22:06:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:31,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:31,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322536704] [2024-10-31 22:06:31,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322536704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:31,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:31,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:31,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324455736] [2024-10-31 22:06:31,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:31,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:31,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:31,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:31,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:31,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 121 [2024-10-31 22:06:31,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:31,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:31,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 121 [2024-10-31 22:06:31,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:31,432 INFO L124 PetriNetUnfolderBase]: 17/323 cut-off events. [2024-10-31 22:06:31,432 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-31 22:06:31,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 323 events. 17/323 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1142 event pairs, 1 based on Foata normal form. 1/299 useless extension candidates. Maximal degree in co-relation 311. Up to 49 conditions per place. [2024-10-31 22:06:31,437 INFO L140 encePairwiseOnDemand]: 113/121 looper letters, 15 selfloop transitions, 2 changer transitions 5/126 dead transitions. [2024-10-31 22:06:31,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 321 flow [2024-10-31 22:06:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:31,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 641 transitions. [2024-10-31 22:06:31,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8829201101928374 [2024-10-31 22:06:31,446 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 263 flow. Second operand 6 states and 641 transitions. [2024-10-31 22:06:31,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 321 flow [2024-10-31 22:06:31,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:31,452 INFO L231 Difference]: Finished difference. Result has 130 places, 119 transitions, 275 flow [2024-10-31 22:06:31,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=130, PETRI_TRANSITIONS=119} [2024-10-31 22:06:31,454 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places. [2024-10-31 22:06:31,456 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 119 transitions, 275 flow [2024-10-31 22:06:31,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:31,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:31,457 INFO L204 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] [2024-10-31 22:06:31,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:31,458 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:31,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:31,458 INFO L85 PathProgramCache]: Analyzing trace with hash -182679660, now seen corresponding path program 1 times [2024-10-31 22:06:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:31,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176832304] [2024-10-31 22:06:31,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:32,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:32,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:32,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176832304] [2024-10-31 22:06:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176832304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:32,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:32,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596057618] [2024-10-31 22:06:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:32,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:32,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:32,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:32,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2024-10-31 22:06:32,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 119 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:32,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:32,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2024-10-31 22:06:32,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:32,619 INFO L124 PetriNetUnfolderBase]: 46/420 cut-off events. [2024-10-31 22:06:32,619 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:06:32,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 420 events. 46/420 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1893 event pairs, 35 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 510. Up to 117 conditions per place. [2024-10-31 22:06:32,622 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 36 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-10-31 22:06:32,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 126 transitions, 371 flow [2024-10-31 22:06:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions. [2024-10-31 22:06:32,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7520661157024794 [2024-10-31 22:06:32,626 INFO L175 Difference]: Start difference. First operand has 130 places, 119 transitions, 275 flow. Second operand 6 states and 546 transitions. [2024-10-31 22:06:32,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 126 transitions, 371 flow [2024-10-31 22:06:32,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 357 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:32,631 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 269 flow [2024-10-31 22:06:32,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2024-10-31 22:06:32,633 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 6 predicate places. [2024-10-31 22:06:32,633 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 269 flow [2024-10-31 22:06:32,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:32,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:32,634 INFO L204 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] [2024-10-31 22:06:32,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:32,634 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1297227942, now seen corresponding path program 1 times [2024-10-31 22:06:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:32,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133368868] [2024-10-31 22:06:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:33,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:33,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133368868] [2024-10-31 22:06:33,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133368868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:33,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:33,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747712125] [2024-10-31 22:06:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:33,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:33,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:33,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:33,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 121 [2024-10-31 22:06:33,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:33,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:33,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 121 [2024-10-31 22:06:33,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:33,444 INFO L124 PetriNetUnfolderBase]: 46/346 cut-off events. [2024-10-31 22:06:33,444 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:06:33,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 346 events. 46/346 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1567 event pairs, 19 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 407. Up to 112 conditions per place. [2024-10-31 22:06:33,450 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 34 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-10-31 22:06:33,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 125 transitions, 361 flow [2024-10-31 22:06:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2024-10-31 22:06:33,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7658402203856749 [2024-10-31 22:06:33,453 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 269 flow. Second operand 6 states and 556 transitions. [2024-10-31 22:06:33,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 125 transitions, 361 flow [2024-10-31 22:06:33,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 125 transitions, 351 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:33,458 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 267 flow [2024-10-31 22:06:33,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2024-10-31 22:06:33,461 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-10-31 22:06:33,461 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 267 flow [2024-10-31 22:06:33,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:33,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:33,464 INFO L204 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] [2024-10-31 22:06:33,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:33,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:33,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:33,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1602367110, now seen corresponding path program 1 times [2024-10-31 22:06:33,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:33,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981512197] [2024-10-31 22:06:33,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:33,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:33,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981512197] [2024-10-31 22:06:33,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981512197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:33,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:33,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676019045] [2024-10-31 22:06:33,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:33,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:33,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 121 [2024-10-31 22:06:33,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:33,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:33,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 121 [2024-10-31 22:06:33,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:33,607 INFO L124 PetriNetUnfolderBase]: 5/216 cut-off events. [2024-10-31 22:06:33,607 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-10-31 22:06:33,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 216 events. 5/216 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 593 event pairs, 3 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 212. Up to 25 conditions per place. [2024-10-31 22:06:33,608 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 8 selfloop transitions, 4 changer transitions 3/120 dead transitions. [2024-10-31 22:06:33,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 120 transitions, 303 flow [2024-10-31 22:06:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-10-31 22:06:33,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931129476584022 [2024-10-31 22:06:33,610 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 267 flow. Second operand 3 states and 338 transitions. [2024-10-31 22:06:33,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 120 transitions, 303 flow [2024-10-31 22:06:33,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 120 transitions, 293 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:33,614 INFO L231 Difference]: Finished difference. Result has 124 places, 117 transitions, 279 flow [2024-10-31 22:06:33,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=124, PETRI_TRANSITIONS=117} [2024-10-31 22:06:33,616 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-10-31 22:06:33,616 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 117 transitions, 279 flow [2024-10-31 22:06:33,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:33,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:33,618 INFO L204 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] [2024-10-31 22:06:33,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:33,619 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:33,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:33,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1005027146, now seen corresponding path program 1 times [2024-10-31 22:06:33,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:33,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054241350] [2024-10-31 22:06:33,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:33,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:06:34,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:34,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054241350] [2024-10-31 22:06:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054241350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:34,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:34,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124505999] [2024-10-31 22:06:34,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:34,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:34,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:34,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:34,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:34,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 121 [2024-10-31 22:06:34,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:34,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:34,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 121 [2024-10-31 22:06:34,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:34,701 INFO L124 PetriNetUnfolderBase]: 33/406 cut-off events. [2024-10-31 22:06:34,701 INFO L125 PetriNetUnfolderBase]: For 66/69 co-relation queries the response was YES. [2024-10-31 22:06:34,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 406 events. 33/406 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1839 event pairs, 23 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 511. Up to 79 conditions per place. [2024-10-31 22:06:34,705 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 31 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2024-10-31 22:06:34,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 123 transitions, 363 flow [2024-10-31 22:06:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:34,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:34,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2024-10-31 22:06:34,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7796143250688705 [2024-10-31 22:06:34,708 INFO L175 Difference]: Start difference. First operand has 124 places, 117 transitions, 279 flow. Second operand 6 states and 566 transitions. [2024-10-31 22:06:34,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 123 transitions, 363 flow [2024-10-31 22:06:34,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:34,713 INFO L231 Difference]: Finished difference. Result has 125 places, 115 transitions, 277 flow [2024-10-31 22:06:34,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=125, PETRI_TRANSITIONS=115} [2024-10-31 22:06:34,714 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-10-31 22:06:34,714 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 115 transitions, 277 flow [2024-10-31 22:06:34,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:34,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:34,716 INFO L204 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] [2024-10-31 22:06:34,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:34,716 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:34,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:34,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1993570666, now seen corresponding path program 1 times [2024-10-31 22:06:34,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:34,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068187039] [2024-10-31 22:06:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:34,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:34,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:34,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068187039] [2024-10-31 22:06:34,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068187039] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:34,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854218068] [2024-10-31 22:06:34,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:34,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:34,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:34,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:34,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:06:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:35,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:06:35,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:35,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:35,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854218068] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:35,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:35,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-31 22:06:35,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152300805] [2024-10-31 22:06:35,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:35,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:06:35,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:35,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:06:35,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:35,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 121 [2024-10-31 22:06:35,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 115 transitions, 277 flow. Second operand has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:35,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:35,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 121 [2024-10-31 22:06:35,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:35,762 INFO L124 PetriNetUnfolderBase]: 12/243 cut-off events. [2024-10-31 22:06:35,763 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-31 22:06:35,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 243 events. 12/243 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 615 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 219. Up to 18 conditions per place. [2024-10-31 22:06:35,764 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 14 selfloop transitions, 8 changer transitions 9/119 dead transitions. [2024-10-31 22:06:35,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 323 flow [2024-10-31 22:06:35,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:35,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 834 transitions. [2024-10-31 22:06:35,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8615702479338843 [2024-10-31 22:06:35,768 INFO L175 Difference]: Start difference. First operand has 125 places, 115 transitions, 277 flow. Second operand 8 states and 834 transitions. [2024-10-31 22:06:35,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 323 flow [2024-10-31 22:06:35,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 299 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-10-31 22:06:35,771 INFO L231 Difference]: Finished difference. Result has 123 places, 104 transitions, 247 flow [2024-10-31 22:06:35,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=123, PETRI_TRANSITIONS=104} [2024-10-31 22:06:35,773 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 3 predicate places. [2024-10-31 22:06:35,773 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 104 transitions, 247 flow [2024-10-31 22:06:35,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:35,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:35,774 INFO L204 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] [2024-10-31 22:06:35,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:06:35,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-31 22:06:35,975 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:35,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:35,976 INFO L85 PathProgramCache]: Analyzing trace with hash -191687227, now seen corresponding path program 1 times [2024-10-31 22:06:35,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:35,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326681228] [2024-10-31 22:06:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:06:36,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:36,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326681228] [2024-10-31 22:06:36,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326681228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:36,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:36,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:36,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124698155] [2024-10-31 22:06:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:36,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:36,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:36,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:36,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:36,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2024-10-31 22:06:36,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 104 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:36,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:36,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2024-10-31 22:06:36,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:36,793 INFO L124 PetriNetUnfolderBase]: 28/299 cut-off events. [2024-10-31 22:06:36,793 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:06:36,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 299 events. 28/299 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1047 event pairs, 18 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 305. Up to 60 conditions per place. [2024-10-31 22:06:36,795 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 12 selfloop transitions, 0 changer transitions 39/111 dead transitions. [2024-10-31 22:06:36,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 317 flow [2024-10-31 22:06:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 605 transitions. [2024-10-31 22:06:36,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-31 22:06:36,799 INFO L175 Difference]: Start difference. First operand has 123 places, 104 transitions, 247 flow. Second operand 6 states and 605 transitions. [2024-10-31 22:06:36,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 317 flow [2024-10-31 22:06:36,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 111 transitions, 306 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:36,805 INFO L231 Difference]: Finished difference. Result has 113 places, 72 transitions, 156 flow [2024-10-31 22:06:36,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=113, PETRI_TRANSITIONS=72} [2024-10-31 22:06:36,808 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -7 predicate places. [2024-10-31 22:06:36,808 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 72 transitions, 156 flow [2024-10-31 22:06:36,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:36,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:36,809 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:36,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:06:36,810 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:06:36,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:36,811 INFO L85 PathProgramCache]: Analyzing trace with hash -751275198, now seen corresponding path program 1 times [2024-10-31 22:06:36,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:36,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616653644] [2024-10-31 22:06:36,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:36,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:36,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:36,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:36,905 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:06:36,906 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-10-31 22:06:36,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-31 22:06:36,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-31 22:06:36,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-31 22:06:36,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-31 22:06:36,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-31 22:06:36,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-31 22:06:36,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-31 22:06:36,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-31 22:06:36,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:06:36,911 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:36,914 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:06:36,914 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:06:36,942 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:06:36,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 139 transitions, 294 flow [2024-10-31 22:06:37,002 INFO L124 PetriNetUnfolderBase]: 11/308 cut-off events. [2024-10-31 22:06:37,002 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:06:37,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 308 events. 11/308 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 578 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2024-10-31 22:06:37,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 139 transitions, 294 flow [2024-10-31 22:06:37,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 294 flow [2024-10-31 22:06:37,007 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:37,007 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@3320879e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:37,008 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-31 22:06:37,012 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:37,012 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:06:37,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:37,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:37,013 INFO L204 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] [2024-10-31 22:06:37,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:37,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:37,014 INFO L85 PathProgramCache]: Analyzing trace with hash 800780135, now seen corresponding path program 1 times [2024-10-31 22:06:37,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:37,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892222044] [2024-10-31 22:06:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:37,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:37,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:37,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892222044] [2024-10-31 22:06:37,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892222044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:37,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:37,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:37,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202397429] [2024-10-31 22:06:37,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:37,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:37,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:37,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:37,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:37,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2024-10-31 22:06:37,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:37,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:37,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2024-10-31 22:06:37,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:37,217 INFO L124 PetriNetUnfolderBase]: 119/878 cut-off events. [2024-10-31 22:06:37,217 INFO L125 PetriNetUnfolderBase]: For 72/115 co-relation queries the response was YES. [2024-10-31 22:06:37,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 878 events. 119/878 cut-off events. For 72/115 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4812 event pairs, 50 based on Foata normal form. 36/808 useless extension candidates. Maximal degree in co-relation 837. Up to 139 conditions per place. [2024-10-31 22:06:37,224 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 16 selfloop transitions, 4 changer transitions 1/143 dead transitions. [2024-10-31 22:06:37,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 143 transitions, 342 flow [2024-10-31 22:06:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2024-10-31 22:06:37,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9424460431654677 [2024-10-31 22:06:37,225 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 294 flow. Second operand 3 states and 393 transitions. [2024-10-31 22:06:37,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 143 transitions, 342 flow [2024-10-31 22:06:37,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 143 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:37,229 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 316 flow [2024-10-31 22:06:37,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-10-31 22:06:37,230 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 4 predicate places. [2024-10-31 22:06:37,230 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 316 flow [2024-10-31 22:06:37,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:37,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:37,231 INFO L204 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] [2024-10-31 22:06:37,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:06:37,231 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:37,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:37,232 INFO L85 PathProgramCache]: Analyzing trace with hash -200520543, now seen corresponding path program 1 times [2024-10-31 22:06:37,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:37,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137978622] [2024-10-31 22:06:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:37,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:37,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:37,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137978622] [2024-10-31 22:06:37,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137978622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:37,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:37,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:37,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323009545] [2024-10-31 22:06:37,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:37,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:37,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:37,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:37,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:37,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 139 [2024-10-31 22:06:37,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:37,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:37,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 139 [2024-10-31 22:06:37,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:37,725 INFO L124 PetriNetUnfolderBase]: 189/1374 cut-off events. [2024-10-31 22:06:37,726 INFO L125 PetriNetUnfolderBase]: For 72/73 co-relation queries the response was YES. [2024-10-31 22:06:37,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1374 events. 189/1374 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9468 event pairs, 131 based on Foata normal form. 1/1256 useless extension candidates. Maximal degree in co-relation 1273. Up to 314 conditions per place. [2024-10-31 22:06:37,735 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 20 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-10-31 22:06:37,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 386 flow [2024-10-31 22:06:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2024-10-31 22:06:37,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752997601918465 [2024-10-31 22:06:37,738 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 316 flow. Second operand 6 states and 730 transitions. [2024-10-31 22:06:37,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 386 flow [2024-10-31 22:06:37,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 146 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:37,742 INFO L231 Difference]: Finished difference. Result has 149 places, 139 transitions, 330 flow [2024-10-31 22:06:37,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=149, PETRI_TRANSITIONS=139} [2024-10-31 22:06:37,742 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 10 predicate places. [2024-10-31 22:06:37,743 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 139 transitions, 330 flow [2024-10-31 22:06:37,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:37,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:37,743 INFO L204 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] [2024-10-31 22:06:37,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:06:37,744 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:37,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:37,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2085519199, now seen corresponding path program 1 times [2024-10-31 22:06:37,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:37,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942106074] [2024-10-31 22:06:37,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:37,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:38,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:38,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942106074] [2024-10-31 22:06:38,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942106074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:38,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:38,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:38,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993152496] [2024-10-31 22:06:38,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:38,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:38,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:38,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:38,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 139 [2024-10-31 22:06:38,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 139 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:38,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:38,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 139 [2024-10-31 22:06:38,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:38,843 INFO L124 PetriNetUnfolderBase]: 448/2416 cut-off events. [2024-10-31 22:06:38,844 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-10-31 22:06:38,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 2416 events. 448/2416 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 20025 event pairs, 342 based on Foata normal form. 0/2149 useless extension candidates. Maximal degree in co-relation 3409. Up to 657 conditions per place. [2024-10-31 22:06:38,858 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 49 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2024-10-31 22:06:38,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 154 transitions, 468 flow [2024-10-31 22:06:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:38,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2024-10-31 22:06:38,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7697841726618705 [2024-10-31 22:06:38,861 INFO L175 Difference]: Start difference. First operand has 149 places, 139 transitions, 330 flow. Second operand 6 states and 642 transitions. [2024-10-31 22:06:38,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 154 transitions, 468 flow [2024-10-31 22:06:38,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 154 transitions, 456 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:06:38,865 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 326 flow [2024-10-31 22:06:38,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-10-31 22:06:38,867 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 7 predicate places. [2024-10-31 22:06:38,867 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 326 flow [2024-10-31 22:06:38,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:38,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:38,869 INFO L204 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] [2024-10-31 22:06:38,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:06:38,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:38,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1065155985, now seen corresponding path program 1 times [2024-10-31 22:06:38,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:38,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646220037] [2024-10-31 22:06:38,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:38,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:39,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:39,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646220037] [2024-10-31 22:06:39,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646220037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:39,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:39,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:39,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990389050] [2024-10-31 22:06:39,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:39,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:39,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:39,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:39,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:39,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 139 [2024-10-31 22:06:39,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:39,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:39,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 139 [2024-10-31 22:06:39,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:40,059 INFO L124 PetriNetUnfolderBase]: 446/2418 cut-off events. [2024-10-31 22:06:40,060 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-31 22:06:40,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3494 conditions, 2418 events. 446/2418 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 20034 event pairs, 264 based on Foata normal form. 0/2139 useless extension candidates. Maximal degree in co-relation 2137. Up to 633 conditions per place. [2024-10-31 22:06:40,077 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 46 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2024-10-31 22:06:40,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 153 transitions, 458 flow [2024-10-31 22:06:40,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 652 transitions. [2024-10-31 22:06:40,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7817745803357314 [2024-10-31 22:06:40,080 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 326 flow. Second operand 6 states and 652 transitions. [2024-10-31 22:06:40,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 153 transitions, 458 flow [2024-10-31 22:06:40,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 448 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:40,085 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 324 flow [2024-10-31 22:06:40,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2024-10-31 22:06:40,087 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-10-31 22:06:40,088 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 324 flow [2024-10-31 22:06:40,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:40,089 INFO L204 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] [2024-10-31 22:06:40,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:06:40,089 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:40,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:40,090 INFO L85 PathProgramCache]: Analyzing trace with hash 481607029, now seen corresponding path program 1 times [2024-10-31 22:06:40,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:40,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225828139] [2024-10-31 22:06:40,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:40,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:40,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:40,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225828139] [2024-10-31 22:06:40,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225828139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:40,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:40,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863385300] [2024-10-31 22:06:40,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:40,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:40,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:40,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:40,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-10-31 22:06:40,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:40,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-10-31 22:06:40,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:40,373 INFO L124 PetriNetUnfolderBase]: 165/1189 cut-off events. [2024-10-31 22:06:40,373 INFO L125 PetriNetUnfolderBase]: For 192/359 co-relation queries the response was YES. [2024-10-31 22:06:40,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1757 conditions, 1189 events. 165/1189 cut-off events. For 192/359 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8130 event pairs, 88 based on Foata normal form. 3/1059 useless extension candidates. Maximal degree in co-relation 1425. Up to 269 conditions per place. [2024-10-31 22:06:40,382 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2024-10-31 22:06:40,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 408 flow [2024-10-31 22:06:40,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-10-31 22:06:40,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9280575539568345 [2024-10-31 22:06:40,384 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 324 flow. Second operand 3 states and 387 transitions. [2024-10-31 22:06:40,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 408 flow [2024-10-31 22:06:40,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 146 transitions, 398 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:40,388 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 370 flow [2024-10-31 22:06:40,388 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-10-31 22:06:40,390 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 5 predicate places. [2024-10-31 22:06:40,390 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 370 flow [2024-10-31 22:06:40,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:40,390 INFO L204 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] [2024-10-31 22:06:40,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:06:40,391 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:40,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:40,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1752921541, now seen corresponding path program 1 times [2024-10-31 22:06:40,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:40,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496462751] [2024-10-31 22:06:40,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:40,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:06:40,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:40,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496462751] [2024-10-31 22:06:40,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496462751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:40,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:40,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:40,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466741147] [2024-10-31 22:06:40,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:40,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:40,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:40,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:41,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 139 [2024-10-31 22:06:41,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:41,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:41,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 139 [2024-10-31 22:06:41,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:41,697 INFO L124 PetriNetUnfolderBase]: 463/2595 cut-off events. [2024-10-31 22:06:41,697 INFO L125 PetriNetUnfolderBase]: For 408/466 co-relation queries the response was YES. [2024-10-31 22:06:41,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 2595 events. 463/2595 cut-off events. For 408/466 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 22408 event pairs, 251 based on Foata normal form. 3/2378 useless extension candidates. Maximal degree in co-relation 3254. Up to 490 conditions per place. [2024-10-31 22:06:41,719 INFO L140 encePairwiseOnDemand]: 132/139 looper letters, 43 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-10-31 22:06:41,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 494 flow [2024-10-31 22:06:41,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:41,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:41,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2024-10-31 22:06:41,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937649880095923 [2024-10-31 22:06:41,722 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 370 flow. Second operand 6 states and 662 transitions. [2024-10-31 22:06:41,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 494 flow [2024-10-31 22:06:41,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:41,729 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 362 flow [2024-10-31 22:06:41,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2024-10-31 22:06:41,731 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-10-31 22:06:41,731 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 362 flow [2024-10-31 22:06:41,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:41,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:41,732 INFO L204 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] [2024-10-31 22:06:41,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:06:41,733 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:41,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:41,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1171198917, now seen corresponding path program 1 times [2024-10-31 22:06:41,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:41,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350292913] [2024-10-31 22:06:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:41,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:41,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:41,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350292913] [2024-10-31 22:06:41,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350292913] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:06:41,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612394799] [2024-10-31 22:06:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:41,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:41,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:06:41,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:06:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:42,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:06:42,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:06:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:42,162 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:06:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:42,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612394799] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:06:42,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:06:42,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-31 22:06:42,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852092875] [2024-10-31 22:06:42,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:06:42,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:06:42,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:06:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:06:42,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 139 [2024-10-31 22:06:42,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 362 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:42,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:42,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 139 [2024-10-31 22:06:42,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:42,916 INFO L124 PetriNetUnfolderBase]: 162/1358 cut-off events. [2024-10-31 22:06:42,916 INFO L125 PetriNetUnfolderBase]: For 135/158 co-relation queries the response was YES. [2024-10-31 22:06:42,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1358 events. 162/1358 cut-off events. For 135/158 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8998 event pairs, 60 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 1029. Up to 161 conditions per place. [2024-10-31 22:06:42,926 INFO L140 encePairwiseOnDemand]: 129/139 looper letters, 32 selfloop transitions, 10 changer transitions 3/162 dead transitions. [2024-10-31 22:06:42,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 162 transitions, 500 flow [2024-10-31 22:06:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 966 transitions. [2024-10-31 22:06:42,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8687050359712231 [2024-10-31 22:06:42,930 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 362 flow. Second operand 8 states and 966 transitions. [2024-10-31 22:06:42,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 162 transitions, 500 flow [2024-10-31 22:06:42,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 162 transitions, 488 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:42,935 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 390 flow [2024-10-31 22:06:42,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=390, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2024-10-31 22:06:42,936 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-10-31 22:06:42,936 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 390 flow [2024-10-31 22:06:42,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:42,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:42,940 INFO L204 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] [2024-10-31 22:06:42,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:06:43,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9765a21e-7512-4343-aa49-159a26f5eff6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:06:43,141 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:43,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:43,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1014058976, now seen corresponding path program 1 times [2024-10-31 22:06:43,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:43,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763319570] [2024-10-31 22:06:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:43,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:43,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:06:43,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:43,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763319570] [2024-10-31 22:06:43,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763319570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:43,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:43,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:43,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816732571] [2024-10-31 22:06:43,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:43,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:43,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:43,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:43,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:43,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2024-10-31 22:06:43,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:43,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:43,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2024-10-31 22:06:43,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:44,237 INFO L124 PetriNetUnfolderBase]: 329/1886 cut-off events. [2024-10-31 22:06:44,238 INFO L125 PetriNetUnfolderBase]: For 151/186 co-relation queries the response was YES. [2024-10-31 22:06:44,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2951 conditions, 1886 events. 329/1886 cut-off events. For 151/186 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 14576 event pairs, 186 based on Foata normal form. 0/1757 useless extension candidates. Maximal degree in co-relation 2205. Up to 364 conditions per place. [2024-10-31 22:06:44,251 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 36 selfloop transitions, 5 changer transitions 1/157 dead transitions. [2024-10-31 22:06:44,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 502 flow [2024-10-31 22:06:44,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:44,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:44,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2024-10-31 22:06:44,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.841726618705036 [2024-10-31 22:06:44,254 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 390 flow. Second operand 6 states and 702 transitions. [2024-10-31 22:06:44,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 502 flow [2024-10-31 22:06:44,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 157 transitions, 496 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:06:44,260 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 387 flow [2024-10-31 22:06:44,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2024-10-31 22:06:44,262 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 12 predicate places. [2024-10-31 22:06:44,263 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 387 flow [2024-10-31 22:06:44,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:44,264 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:44,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:06:44,264 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:44,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:44,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1969955840, now seen corresponding path program 1 times [2024-10-31 22:06:44,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:44,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485542509] [2024-10-31 22:06:44,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:44,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:44,351 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:06:44,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:44,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485542509] [2024-10-31 22:06:44,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485542509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:44,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:44,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:44,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207442672] [2024-10-31 22:06:44,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:44,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:44,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:44,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:44,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:44,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-10-31 22:06:44,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:44,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-10-31 22:06:44,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:44,554 INFO L124 PetriNetUnfolderBase]: 56/879 cut-off events. [2024-10-31 22:06:44,554 INFO L125 PetriNetUnfolderBase]: For 247/475 co-relation queries the response was YES. [2024-10-31 22:06:44,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 879 events. 56/879 cut-off events. For 247/475 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5330 event pairs, 30 based on Foata normal form. 2/855 useless extension candidates. Maximal degree in co-relation 1192. Up to 119 conditions per place. [2024-10-31 22:06:44,561 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 1/147 dead transitions. [2024-10-31 22:06:44,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 147 transitions, 464 flow [2024-10-31 22:06:44,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:44,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:44,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-10-31 22:06:44,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256594724220624 [2024-10-31 22:06:44,565 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 387 flow. Second operand 3 states and 386 transitions. [2024-10-31 22:06:44,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 147 transitions, 464 flow [2024-10-31 22:06:44,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 147 transitions, 454 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:44,570 INFO L231 Difference]: Finished difference. Result has 150 places, 143 transitions, 427 flow [2024-10-31 22:06:44,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2024-10-31 22:06:44,571 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-10-31 22:06:44,571 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 427 flow [2024-10-31 22:06:44,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:44,572 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:44,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:06:44,572 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:44,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2139877206, now seen corresponding path program 1 times [2024-10-31 22:06:44,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:44,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10270298] [2024-10-31 22:06:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:44,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:06:44,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:44,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10270298] [2024-10-31 22:06:44,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10270298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:44,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:44,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:44,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588642858] [2024-10-31 22:06:44,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:44,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:44,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:44,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:44,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:44,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 139 [2024-10-31 22:06:44,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:44,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 139 [2024-10-31 22:06:44,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:44,827 INFO L124 PetriNetUnfolderBase]: 12/537 cut-off events. [2024-10-31 22:06:44,827 INFO L125 PetriNetUnfolderBase]: For 125/145 co-relation queries the response was YES. [2024-10-31 22:06:44,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 537 events. 12/537 cut-off events. For 125/145 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2275 event pairs, 2 based on Foata normal form. 4/534 useless extension candidates. Maximal degree in co-relation 580. Up to 26 conditions per place. [2024-10-31 22:06:44,830 INFO L140 encePairwiseOnDemand]: 135/139 looper letters, 8 selfloop transitions, 4 changer transitions 4/144 dead transitions. [2024-10-31 22:06:44,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 144 transitions, 448 flow [2024-10-31 22:06:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:44,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-10-31 22:06:44,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.947242206235012 [2024-10-31 22:06:44,832 INFO L175 Difference]: Start difference. First operand has 150 places, 143 transitions, 427 flow. Second operand 3 states and 395 transitions. [2024-10-31 22:06:44,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 144 transitions, 448 flow [2024-10-31 22:06:44,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 144 transitions, 436 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:44,836 INFO L231 Difference]: Finished difference. Result has 150 places, 137 transitions, 387 flow [2024-10-31 22:06:44,836 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=150, PETRI_TRANSITIONS=137} [2024-10-31 22:06:44,836 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-10-31 22:06:44,837 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 137 transitions, 387 flow [2024-10-31 22:06:44,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:44,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:44,837 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:44,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:06:44,838 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:06:44,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash -781949816, now seen corresponding path program 1 times [2024-10-31 22:06:44,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:44,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040039722] [2024-10-31 22:06:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:44,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:44,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:06:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:06:44,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:06:44,960 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:06:44,961 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-31 22:06:44,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-10-31 22:06:44,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-10-31 22:06:44,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-10-31 22:06:44,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-10-31 22:06:44,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-10-31 22:06:44,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-10-31 22:06:44,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-10-31 22:06:44,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-10-31 22:06:44,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-10-31 22:06:44,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-31 22:06:44,963 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:44,964 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:06:44,965 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:06:44,990 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:06:44,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 157 transitions, 341 flow [2024-10-31 22:06:45,079 INFO L124 PetriNetUnfolderBase]: 21/527 cut-off events. [2024-10-31 22:06:45,079 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:06:45,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 527 events. 21/527 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1319 event pairs, 1 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 316. Up to 16 conditions per place. [2024-10-31 22:06:45,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 157 transitions, 341 flow [2024-10-31 22:06:45,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 157 transitions, 341 flow [2024-10-31 22:06:45,085 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:45,085 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@3320879e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:45,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 22:06:45,095 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:45,095 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:06:45,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:45,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:45,096 INFO L204 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] [2024-10-31 22:06:45,096 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:06:45,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:45,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1192952569, now seen corresponding path program 1 times [2024-10-31 22:06:45,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:45,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087401908] [2024-10-31 22:06:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:45,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:45,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087401908] [2024-10-31 22:06:45,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087401908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:45,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:45,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858268574] [2024-10-31 22:06:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:45,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:45,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:45,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:45,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 157 [2024-10-31 22:06:45,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 157 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:45,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:45,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 157 [2024-10-31 22:06:45,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:46,106 INFO L124 PetriNetUnfolderBase]: 1071/4747 cut-off events. [2024-10-31 22:06:46,106 INFO L125 PetriNetUnfolderBase]: For 467/854 co-relation queries the response was YES. [2024-10-31 22:06:46,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6662 conditions, 4747 events. 1071/4747 cut-off events. For 467/854 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 42113 event pairs, 542 based on Foata normal form. 171/4389 useless extension candidates. Maximal degree in co-relation 5220. Up to 1110 conditions per place. [2024-10-31 22:06:46,146 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 23 selfloop transitions, 5 changer transitions 1/164 dead transitions. [2024-10-31 22:06:46,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 164 transitions, 411 flow [2024-10-31 22:06:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:46,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:46,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2024-10-31 22:06:46,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9341825902335457 [2024-10-31 22:06:46,149 INFO L175 Difference]: Start difference. First operand has 158 places, 157 transitions, 341 flow. Second operand 3 states and 440 transitions. [2024-10-31 22:06:46,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 164 transitions, 411 flow [2024-10-31 22:06:46,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 164 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:46,152 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 371 flow [2024-10-31 22:06:46,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-10-31 22:06:46,153 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 4 predicate places. [2024-10-31 22:06:46,153 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 371 flow [2024-10-31 22:06:46,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:46,154 INFO L204 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] [2024-10-31 22:06:46,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:06:46,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:06:46,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash -622230047, now seen corresponding path program 1 times [2024-10-31 22:06:46,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:46,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957896611] [2024-10-31 22:06:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:46,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:46,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:46,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:46,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957896611] [2024-10-31 22:06:46,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957896611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:46,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:46,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:46,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081115850] [2024-10-31 22:06:46,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:46,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:46,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:46,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:46,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:46,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2024-10-31 22:06:46,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 371 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:46,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:46,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2024-10-31 22:06:46,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:47,439 INFO L124 PetriNetUnfolderBase]: 1404/6861 cut-off events. [2024-10-31 22:06:47,440 INFO L125 PetriNetUnfolderBase]: For 443/458 co-relation queries the response was YES. [2024-10-31 22:06:47,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9759 conditions, 6861 events. 1404/6861 cut-off events. For 443/458 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 66613 event pairs, 1086 based on Foata normal form. 1/6146 useless extension candidates. Maximal degree in co-relation 6125. Up to 1847 conditions per place. [2024-10-31 22:06:47,491 INFO L140 encePairwiseOnDemand]: 149/157 looper letters, 24 selfloop transitions, 2 changer transitions 5/165 dead transitions. [2024-10-31 22:06:47,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 165 transitions, 449 flow [2024-10-31 22:06:47,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2024-10-31 22:06:47,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8683651804670913 [2024-10-31 22:06:47,578 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 371 flow. Second operand 6 states and 818 transitions. [2024-10-31 22:06:47,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 165 transitions, 449 flow [2024-10-31 22:06:47,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:47,588 INFO L231 Difference]: Finished difference. Result has 168 places, 158 transitions, 383 flow [2024-10-31 22:06:47,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=383, PETRI_PLACES=168, PETRI_TRANSITIONS=158} [2024-10-31 22:06:47,589 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 10 predicate places. [2024-10-31 22:06:47,589 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 158 transitions, 383 flow [2024-10-31 22:06:47,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:47,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:47,590 INFO L204 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] [2024-10-31 22:06:47,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-31 22:06:47,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:06:47,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:47,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1897426620, now seen corresponding path program 1 times [2024-10-31 22:06:47,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:47,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707859211] [2024-10-31 22:06:47,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:47,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:47,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:47,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707859211] [2024-10-31 22:06:47,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707859211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:47,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:47,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291215217] [2024-10-31 22:06:47,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:47,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:47,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:47,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:47,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:48,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 157 [2024-10-31 22:06:48,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 158 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:48,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:48,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 157 [2024-10-31 22:06:48,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:50,915 INFO L124 PetriNetUnfolderBase]: 3152/13178 cut-off events. [2024-10-31 22:06:50,916 INFO L125 PetriNetUnfolderBase]: For 507/508 co-relation queries the response was YES. [2024-10-31 22:06:51,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19322 conditions, 13178 events. 3152/13178 cut-off events. For 507/508 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 142874 event pairs, 2465 based on Foata normal form. 0/11518 useless extension candidates. Maximal degree in co-relation 19209. Up to 3699 conditions per place. [2024-10-31 22:06:51,081 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 61 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-10-31 22:06:51,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 181 transitions, 561 flow [2024-10-31 22:06:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2024-10-31 22:06:51,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7834394904458599 [2024-10-31 22:06:51,085 INFO L175 Difference]: Start difference. First operand has 168 places, 158 transitions, 383 flow. Second operand 6 states and 738 transitions. [2024-10-31 22:06:51,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 181 transitions, 561 flow [2024-10-31 22:06:51,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 181 transitions, 549 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:06:51,098 INFO L231 Difference]: Finished difference. Result has 165 places, 157 transitions, 379 flow [2024-10-31 22:06:51,098 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=165, PETRI_TRANSITIONS=157} [2024-10-31 22:06:51,099 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 7 predicate places. [2024-10-31 22:06:51,099 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 157 transitions, 379 flow [2024-10-31 22:06:51,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:51,100 INFO L204 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] [2024-10-31 22:06:51,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-31 22:06:51,100 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:06:51,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:51,101 INFO L85 PathProgramCache]: Analyzing trace with hash 555839182, now seen corresponding path program 1 times [2024-10-31 22:06:51,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:51,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393043930] [2024-10-31 22:06:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:51,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:51,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393043930] [2024-10-31 22:06:51,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393043930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:51,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:51,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:51,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148513242] [2024-10-31 22:06:51,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:51,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:51,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:51,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:51,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:51,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 157 [2024-10-31 22:06:51,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 157 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:51,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 157 [2024-10-31 22:06:51,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:54,039 INFO L124 PetriNetUnfolderBase]: 3111/12735 cut-off events. [2024-10-31 22:06:54,039 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-10-31 22:06:54,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18633 conditions, 12735 events. 3111/12735 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 138436 event pairs, 1733 based on Foata normal form. 0/11154 useless extension candidates. Maximal degree in co-relation 5021. Up to 3533 conditions per place. [2024-10-31 22:06:54,126 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 58 selfloop transitions, 5 changer transitions 0/180 dead transitions. [2024-10-31 22:06:54,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 180 transitions, 551 flow [2024-10-31 22:06:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2024-10-31 22:06:54,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940552016985138 [2024-10-31 22:06:54,129 INFO L175 Difference]: Start difference. First operand has 165 places, 157 transitions, 379 flow. Second operand 6 states and 748 transitions. [2024-10-31 22:06:54,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 180 transitions, 551 flow [2024-10-31 22:06:54,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 180 transitions, 541 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:54,135 INFO L231 Difference]: Finished difference. Result has 164 places, 156 transitions, 377 flow [2024-10-31 22:06:54,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=377, PETRI_PLACES=164, PETRI_TRANSITIONS=156} [2024-10-31 22:06:54,136 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 6 predicate places. [2024-10-31 22:06:54,136 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 156 transitions, 377 flow [2024-10-31 22:06:54,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:54,137 INFO L204 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] [2024-10-31 22:06:54,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-31 22:06:54,138 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:06:54,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:54,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1197595298, now seen corresponding path program 1 times [2024-10-31 22:06:54,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:54,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704136077] [2024-10-31 22:06:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:54,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:54,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704136077] [2024-10-31 22:06:54,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704136077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:54,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:54,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:54,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503100318] [2024-10-31 22:06:54,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:54,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:54,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:54,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:54,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:54,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-10-31 22:06:54,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 156 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:54,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-10-31 22:06:54,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand