./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.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_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/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_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/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_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:11:49,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:11:49,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:11:49,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:11:49,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:11:49,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:11:49,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:11:49,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:11:49,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:11:49,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:11:49,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:11:49,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:11:49,958 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:11:49,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:11:49,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:11:49,960 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:11:49,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:11:49,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:11:49,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:11:49,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:11:49,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:11:49,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:11:49,963 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:11:49,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:11:49,964 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:11:49,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:11:49,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:11:49,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:11:49,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:11:49,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:11:49,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:11:49,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:49,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:11:49,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:11:49,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:11:49,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:11:49,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:11:49,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:11:49,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:11:49,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:11:49,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:11:49,972 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_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2024-10-31 22:11:50,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:11:50,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:11:50,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:11:50,342 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:11:50,343 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:11:50,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i Unable to find full path for "g++" [2024-10-31 22:11:52,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:11:52,624 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:11:52,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-10-31 22:11:52,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/data/b40cc458c/ba16073b66454d02aa813eb41e9fa221/FLAGb4034af81 [2024-10-31 22:11:52,910 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/data/b40cc458c/ba16073b66454d02aa813eb41e9fa221 [2024-10-31 22:11:52,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:11:52,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:11:52,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:52,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:11:52,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:11:52,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:52" (1/1) ... [2024-10-31 22:11:52,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6357a9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:52, skipping insertion in model container [2024-10-31 22:11:52,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:52" (1/1) ... [2024-10-31 22:11:53,005 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:11:53,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:53,635 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:11:53,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:53,781 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:11:53,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53 WrapperNode [2024-10-31 22:11:53,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:53,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:53,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:11:53,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:11:53,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,877 INFO L138 Inliner]: procedures = 279, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 384 [2024-10-31 22:11:53,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:53,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:11:53,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:11:53,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:11:53,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:53,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:11:53,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:11:53,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:11:53,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:11:53,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (1/1) ... [2024-10-31 22:11:54,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:11:54,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:11:54,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:11:54,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69b000dd-b8c9-402b-abaa-07f4ba7e29e2/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:11:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:11:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 22:11:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-31 22:11:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-31 22:11:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:11:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:11:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:11:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-31 22:11:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-31 22:11:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:11:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:11:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:11:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:11:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:11:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:11:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:11:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:11:54,078 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 22:11:54,311 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:11:54,312 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:11:55,136 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:11:55,136 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:11:55,188 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:11:55,188 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-31 22:11:55,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:55 BoogieIcfgContainer [2024-10-31 22:11:55,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:11:55,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:11:55,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:11:55,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:11:55,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:11:52" (1/3) ... [2024-10-31 22:11:55,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e29db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:55, skipping insertion in model container [2024-10-31 22:11:55,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:53" (2/3) ... [2024-10-31 22:11:55,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e29db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:11:55, skipping insertion in model container [2024-10-31 22:11:55,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:55" (3/3) ... [2024-10-31 22:11:55,198 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-10-31 22:11:55,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:11:55,219 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-10-31 22:11:55,219 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:11:55,364 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:11:55,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 392 places, 411 transitions, 842 flow [2024-10-31 22:11:55,824 INFO L124 PetriNetUnfolderBase]: 54/730 cut-off events. [2024-10-31 22:11:55,824 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:11:55,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 730 events. 54/730 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3048 event pairs, 0 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 385. Up to 8 conditions per place. [2024-10-31 22:11:55,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 392 places, 411 transitions, 842 flow [2024-10-31 22:11:55,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 392 places, 411 transitions, 842 flow [2024-10-31 22:11:55,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:11:55,880 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;@1faf450e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:11:55,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-31 22:11:55,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:11:55,899 INFO L124 PetriNetUnfolderBase]: 0/84 cut-off events. [2024-10-31 22:11:55,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:11:55,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:55,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:55,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:11:55,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash -465024094, now seen corresponding path program 1 times [2024-10-31 22:11:55,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:55,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628266792] [2024-10-31 22:11:55,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:55,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:56,366 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 22:11:56,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:56,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628266792] [2024-10-31 22:11:56,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628266792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:56,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:56,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:56,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933707716] [2024-10-31 22:11:56,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:56,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:56,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:56,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:56,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:56,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 411 [2024-10-31 22:11:56,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 411 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 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 22:11:56,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:56,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 411 [2024-10-31 22:11:56,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:57,299 INFO L124 PetriNetUnfolderBase]: 184/2360 cut-off events. [2024-10-31 22:11:57,299 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-10-31 22:11:57,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2360 events. 184/2360 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 17347 event pairs, 132 based on Foata normal form. 276/2405 useless extension candidates. Maximal degree in co-relation 1796. Up to 283 conditions per place. [2024-10-31 22:11:57,328 INFO L140 encePairwiseOnDemand]: 391/411 looper letters, 23 selfloop transitions, 2 changer transitions 0/391 dead transitions. [2024-10-31 22:11:57,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 391 transitions, 852 flow [2024-10-31 22:11:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:57,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1144 transitions. [2024-10-31 22:11:57,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9278183292781833 [2024-10-31 22:11:57,361 INFO L175 Difference]: Start difference. First operand has 392 places, 411 transitions, 842 flow. Second operand 3 states and 1144 transitions. [2024-10-31 22:11:57,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 391 transitions, 852 flow [2024-10-31 22:11:57,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 391 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:11:57,381 INFO L231 Difference]: Finished difference. Result has 391 places, 391 transitions, 806 flow [2024-10-31 22:11:57,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=391, PETRI_TRANSITIONS=391} [2024-10-31 22:11:57,392 INFO L277 CegarLoopForPetriNet]: 392 programPoint places, -1 predicate places. [2024-10-31 22:11:57,392 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 391 transitions, 806 flow [2024-10-31 22:11:57,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 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 22:11:57,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:57,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:57,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:11:57,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:11:57,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1422277775, now seen corresponding path program 1 times [2024-10-31 22:11:57,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:57,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519770579] [2024-10-31 22:11:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:57,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:57,617 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 22:11:57,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:57,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519770579] [2024-10-31 22:11:57,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519770579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:57,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:57,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:11:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791609322] [2024-10-31 22:11:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:57,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:11:57,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:57,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:57,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:57,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 411 [2024-10-31 22:11:57,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 391 transitions, 806 flow. Second operand has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 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 22:11:57,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:11:57,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 411 [2024-10-31 22:11:57,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:11:58,320 INFO L124 PetriNetUnfolderBase]: 104/1860 cut-off events. [2024-10-31 22:11:58,321 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-10-31 22:11:58,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 1860 events. 104/1860 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11395 event pairs, 72 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2012. Up to 185 conditions per place. [2024-10-31 22:11:58,350 INFO L140 encePairwiseOnDemand]: 407/411 looper letters, 22 selfloop transitions, 1 changer transitions 0/388 dead transitions. [2024-10-31 22:11:58,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 388 transitions, 846 flow [2024-10-31 22:11:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:11:58,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1127 transitions. [2024-10-31 22:11:58,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9140308191403081 [2024-10-31 22:11:58,356 INFO L175 Difference]: Start difference. First operand has 391 places, 391 transitions, 806 flow. Second operand 3 states and 1127 transitions. [2024-10-31 22:11:58,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 388 transitions, 846 flow [2024-10-31 22:11:58,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 388 transitions, 842 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:11:58,369 INFO L231 Difference]: Finished difference. Result has 388 places, 388 transitions, 798 flow [2024-10-31 22:11:58,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=388, PETRI_TRANSITIONS=388} [2024-10-31 22:11:58,372 INFO L277 CegarLoopForPetriNet]: 392 programPoint places, -4 predicate places. [2024-10-31 22:11:58,372 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 388 transitions, 798 flow [2024-10-31 22:11:58,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 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 22:11:58,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:11:58,375 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, 1, 1, 1, 1, 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 22:11:58,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:11:58,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:11:58,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash -756732128, now seen corresponding path program 1 times [2024-10-31 22:11:58,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:58,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872367811] [2024-10-31 22:11:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:58,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:59,263 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 22:11:59,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:59,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872367811] [2024-10-31 22:11:59,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872367811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:59,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:59,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:11:59,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564345300] [2024-10-31 22:11:59,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:59,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:11:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:11:59,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:00,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 411 [2024-10-31 22:12:00,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 388 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 303.3333333333333) internal successors, (1820), 6 states have internal predecessors, (1820), 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 22:12:00,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:00,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 411 [2024-10-31 22:12:00,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:13,676 INFO L124 PetriNetUnfolderBase]: 22238/59988 cut-off events. [2024-10-31 22:12:13,677 INFO L125 PetriNetUnfolderBase]: For 439/439 co-relation queries the response was YES. [2024-10-31 22:12:13,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94067 conditions, 59988 events. 22238/59988 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 702350 event pairs, 21418 based on Foata normal form. 0/55847 useless extension candidates. Maximal degree in co-relation 93973. Up to 33881 conditions per place. [2024-10-31 22:12:14,233 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 85 selfloop transitions, 5 changer transitions 0/387 dead transitions. [2024-10-31 22:12:14,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 387 transitions, 976 flow [2024-10-31 22:12:14,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:12:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1903 transitions. [2024-10-31 22:12:14,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716950527169505 [2024-10-31 22:12:14,240 INFO L175 Difference]: Start difference. First operand has 388 places, 388 transitions, 798 flow. Second operand 6 states and 1903 transitions. [2024-10-31 22:12:14,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 387 transitions, 976 flow [2024-10-31 22:12:14,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 387 transitions, 975 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:12:14,263 INFO L231 Difference]: Finished difference. Result has 391 places, 387 transitions, 805 flow [2024-10-31 22:12:14,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=805, PETRI_PLACES=391, PETRI_TRANSITIONS=387} [2024-10-31 22:12:14,265 INFO L277 CegarLoopForPetriNet]: 392 programPoint places, -1 predicate places. [2024-10-31 22:12:14,266 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 387 transitions, 805 flow [2024-10-31 22:12:14,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.3333333333333) internal successors, (1820), 6 states have internal predecessors, (1820), 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 22:12:14,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:14,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:12:14,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:14,269 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-31 22:12:14,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:14,270 INFO L85 PathProgramCache]: Analyzing trace with hash 739173495, now seen corresponding path program 1 times [2024-10-31 22:12:14,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:14,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6119628] [2024-10-31 22:12:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:14,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:14,983 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 22:12:14,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:14,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6119628] [2024-10-31 22:12:14,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6119628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:14,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:14,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:12:14,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239073339] [2024-10-31 22:12:14,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:14,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:14,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:14,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:14,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:15,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 411 [2024-10-31 22:12:15,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 387 transitions, 805 flow. Second operand has 6 states, 6 states have (on average 303.3333333333333) internal successors, (1820), 6 states have internal predecessors, (1820), 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 22:12:15,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:15,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 411 [2024-10-31 22:12:15,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand