./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.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_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/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_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/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_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/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 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:49,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:49,312 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:03:49,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:49,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:49,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:49,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:49,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:49,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:49,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:49,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:49,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:49,350 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:49,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:49,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:03:49,351 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:49,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:49,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:49,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:49,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:03:49,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:49,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:03:49,359 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:03:49,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:49,360 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:49,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:49,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:49,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:49,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:49,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:49,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:49,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:49,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:49,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:49,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:03:49,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:49,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:49,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:49,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:49,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:49,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:49,364 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_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f [2024-10-31 22:03:49,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:49,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:49,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:49,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:49,749 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:49,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i Unable to find full path for "g++" [2024-10-31 22:03:51,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:52,042 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:52,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2024-10-31 22:03:52,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/data/29bc066c6/afe292eea7b14ef3a5fc79dfe75f58b9/FLAGc77b97b79 [2024-10-31 22:03:52,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/data/29bc066c6/afe292eea7b14ef3a5fc79dfe75f58b9 [2024-10-31 22:03:52,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:52,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:52,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:52,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:52,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:52,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:52" (1/1) ... [2024-10-31 22:03:52,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9dfafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:52, skipping insertion in model container [2024-10-31 22:03:52,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:52" (1/1) ... [2024-10-31 22:03:52,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:52,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:52,993 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:53,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:53,134 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:53,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53 WrapperNode [2024-10-31 22:03:53,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:53,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:53,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:53,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:53,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,210 INFO L138 Inliner]: procedures = 165, calls = 74, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-10-31 22:03:53,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:53,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:53,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:53,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:53,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:53,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:53,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:53,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:53,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (1/1) ... [2024-10-31 22:03:53,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:53,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:03:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:03:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:03:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:03:53,354 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:03:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:03:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:03:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:53,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:53,360 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 22:03:53,513 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:53,515 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:53,952 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:53,953 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:53,990 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:53,991 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:03:53,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:53 BoogieIcfgContainer [2024-10-31 22:03:53,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:53,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:53,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:54,002 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:54,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:52" (1/3) ... [2024-10-31 22:03:54,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366eb69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:54, skipping insertion in model container [2024-10-31 22:03:54,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:53" (2/3) ... [2024-10-31 22:03:54,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366eb69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:54, skipping insertion in model container [2024-10-31 22:03:54,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:53" (3/3) ... [2024-10-31 22:03:54,007 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2024-10-31 22:03:54,034 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:54,035 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 22:03:54,036 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:54,124 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:03:54,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 150 transitions, 304 flow [2024-10-31 22:03:54,267 INFO L124 PetriNetUnfolderBase]: 3/149 cut-off events. [2024-10-31 22:03:54,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:54,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 149 events. 3/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-10-31 22:03:54,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 150 transitions, 304 flow [2024-10-31 22:03:54,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 149 transitions, 301 flow [2024-10-31 22:03:54,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:54,313 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;@729cbbb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:54,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:03:54,363 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:54,364 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-10-31 22:03:54,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:54,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:54,365 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] [2024-10-31 22:03:54,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:03:54,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2008266773, now seen corresponding path program 1 times [2024-10-31 22:03:54,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:54,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885389546] [2024-10-31 22:03:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:54,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:54,995 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 22:03:54,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:54,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885389546] [2024-10-31 22:03:54,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885389546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:54,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:55,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:55,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345307709] [2024-10-31 22:03:55,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:55,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:55,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:55,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:55,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:55,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 150 [2024-10-31 22:03:55,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 149 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 22:03:55,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:55,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 150 [2024-10-31 22:03:55,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:55,217 INFO L124 PetriNetUnfolderBase]: 7/232 cut-off events. [2024-10-31 22:03:55,217 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:03:55,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 232 events. 7/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 328 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 153. Up to 24 conditions per place. [2024-10-31 22:03:55,223 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 10 selfloop transitions, 2 changer transitions 1/148 dead transitions. [2024-10-31 22:03:55,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 148 transitions, 323 flow [2024-10-31 22:03:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2024-10-31 22:03:55,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9488888888888889 [2024-10-31 22:03:55,247 INFO L175 Difference]: Start difference. First operand has 150 places, 149 transitions, 301 flow. Second operand 3 states and 427 transitions. [2024-10-31 22:03:55,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 148 transitions, 323 flow [2024-10-31 22:03:55,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 148 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:55,270 INFO L231 Difference]: Finished difference. Result has 152 places, 147 transitions, 306 flow [2024-10-31 22:03:55,272 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=152, PETRI_TRANSITIONS=147} [2024-10-31 22:03:55,277 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 2 predicate places. [2024-10-31 22:03:55,277 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 147 transitions, 306 flow [2024-10-31 22:03:55,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 22:03:55,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:55,278 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] [2024-10-31 22:03:55,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:55,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:03:55,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:55,280 INFO L85 PathProgramCache]: Analyzing trace with hash 410610544, now seen corresponding path program 1 times [2024-10-31 22:03:55,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:55,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021556670] [2024-10-31 22:03:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:55,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:55,565 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 22:03:55,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:55,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021556670] [2024-10-31 22:03:55,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021556670] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:55,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143394528] [2024-10-31 22:03:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:55,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:55,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:55,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:55,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:03:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:55,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:03:55,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:55,835 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 22:03:55,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:55,900 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 22:03:55,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143394528] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:55,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:55,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:03:55,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873581927] [2024-10-31 22:03:55,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:55,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:03:55,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:03:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:03:55,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-10-31 22:03:55,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 147 transitions, 306 flow. Second operand has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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 22:03:55,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:55,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-10-31 22:03:55,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:56,113 INFO L124 PetriNetUnfolderBase]: 7/238 cut-off events. [2024-10-31 22:03:56,114 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:03:56,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 238 events. 7/238 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 328 event pairs, 6 based on Foata normal form. 2/228 useless extension candidates. Maximal degree in co-relation 200. Up to 24 conditions per place. [2024-10-31 22:03:56,116 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 14 selfloop transitions, 9 changer transitions 0/155 dead transitions. [2024-10-31 22:03:56,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 155 transitions, 370 flow [2024-10-31 22:03:56,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:03:56,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:03:56,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1231 transitions. [2024-10-31 22:03:56,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9118518518518518 [2024-10-31 22:03:56,123 INFO L175 Difference]: Start difference. First operand has 152 places, 147 transitions, 306 flow. Second operand 9 states and 1231 transitions. [2024-10-31 22:03:56,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 155 transitions, 370 flow [2024-10-31 22:03:56,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 155 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:56,127 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 354 flow [2024-10-31 22:03:56,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=354, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2024-10-31 22:03:56,128 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 11 predicate places. [2024-10-31 22:03:56,129 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 354 flow [2024-10-31 22:03:56,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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 22:03:56,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:56,131 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:56,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:03:56,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-31 22:03:56,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:03:56,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:56,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1046615696, now seen corresponding path program 2 times [2024-10-31 22:03:56,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:56,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420360971] [2024-10-31 22:03:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:56,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420360971] [2024-10-31 22:03:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420360971] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147195520] [2024-10-31 22:03:56,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:03:56,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:56,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:56,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:03:56,813 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:03:56,814 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:03:56,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:03:56,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:57,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:03:57,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-31 22:03:57,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:03:57,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-31 22:03:57,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:03:57,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-31 22:03:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:03:57,317 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147195520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:57,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:57,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-10-31 22:03:57,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202892316] [2024-10-31 22:03:57,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:57,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:03:57,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:57,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:03:57,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:03:57,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 150 [2024-10-31 22:03:57,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 354 flow. Second operand has 7 states, 7 states have (on average 121.14285714285714) internal successors, (848), 7 states have internal predecessors, (848), 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 22:03:57,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:57,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 150 [2024-10-31 22:03:57,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:58,267 INFO L124 PetriNetUnfolderBase]: 261/1018 cut-off events. [2024-10-31 22:03:58,267 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:03:58,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 1018 events. 261/1018 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6023 event pairs, 67 based on Foata normal form. 0/983 useless extension candidates. Maximal degree in co-relation 1507. Up to 256 conditions per place. [2024-10-31 22:03:58,277 INFO L140 encePairwiseOnDemand]: 127/150 looper letters, 87 selfloop transitions, 43 changer transitions 0/255 dead transitions. [2024-10-31 22:03:58,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 255 transitions, 818 flow [2024-10-31 22:03:58,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:03:58,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 972 transitions. [2024-10-31 22:03:58,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9257142857142857 [2024-10-31 22:03:58,282 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 354 flow. Second operand 7 states and 972 transitions. [2024-10-31 22:03:58,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 255 transitions, 818 flow [2024-10-31 22:03:58,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 255 transitions, 812 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:58,289 INFO L231 Difference]: Finished difference. Result has 171 places, 199 transitions, 667 flow [2024-10-31 22:03:58,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=667, PETRI_PLACES=171, PETRI_TRANSITIONS=199} [2024-10-31 22:03:58,291 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 21 predicate places. [2024-10-31 22:03:58,291 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 199 transitions, 667 flow [2024-10-31 22:03:58,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 121.14285714285714) internal successors, (848), 7 states have internal predecessors, (848), 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 22:03:58,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:58,293 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:58,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:03:58,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:58,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:03:58,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1023596779, now seen corresponding path program 1 times [2024-10-31 22:03:58,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:58,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371682860] [2024-10-31 22:03:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:58,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:58,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:58,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371682860] [2024-10-31 22:03:58,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371682860] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:58,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594205795] [2024-10-31 22:03:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:58,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:58,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:58,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:58,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:03:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:59,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:59,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:59,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:59,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594205795] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:59,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:59,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 22:03:59,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803308158] [2024-10-31 22:03:59,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:59,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:03:59,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:59,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:03:59,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:03:59,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-10-31 22:03:59,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 199 transitions, 667 flow. Second operand has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 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 22:03:59,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:59,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-10-31 22:03:59,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:59,914 INFO L124 PetriNetUnfolderBase]: 122/788 cut-off events. [2024-10-31 22:03:59,915 INFO L125 PetriNetUnfolderBase]: For 129/142 co-relation queries the response was YES. [2024-10-31 22:03:59,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1460 conditions, 788 events. 122/788 cut-off events. For 129/142 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4550 event pairs, 40 based on Foata normal form. 4/778 useless extension candidates. Maximal degree in co-relation 1268. Up to 125 conditions per place. [2024-10-31 22:03:59,923 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 18 selfloop transitions, 21 changer transitions 0/217 dead transitions. [2024-10-31 22:03:59,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 217 transitions, 833 flow [2024-10-31 22:03:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-31 22:03:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-31 22:03:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2857 transitions. [2024-10-31 22:03:59,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.906984126984127 [2024-10-31 22:03:59,933 INFO L175 Difference]: Start difference. First operand has 171 places, 199 transitions, 667 flow. Second operand 21 states and 2857 transitions. [2024-10-31 22:03:59,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 217 transitions, 833 flow [2024-10-31 22:03:59,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 217 transitions, 832 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:59,945 INFO L231 Difference]: Finished difference. Result has 195 places, 212 transitions, 796 flow [2024-10-31 22:03:59,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=796, PETRI_PLACES=195, PETRI_TRANSITIONS=212} [2024-10-31 22:03:59,946 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 45 predicate places. [2024-10-31 22:03:59,947 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 212 transitions, 796 flow [2024-10-31 22:03:59,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 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 22:03:59,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:59,951 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:59,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:04:00,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:00,153 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:00,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:00,154 INFO L85 PathProgramCache]: Analyzing trace with hash 84149589, now seen corresponding path program 2 times [2024-10-31 22:04:00,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:00,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679373820] [2024-10-31 22:04:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:00,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:00,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679373820] [2024-10-31 22:04:00,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679373820] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:00,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454384534] [2024-10-31 22:04:00,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:04:00,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:00,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:00,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:00,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:04:00,857 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:04:00,857 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:00,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:04:00,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:01,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:04:01,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-31 22:04:01,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:04:01,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-31 22:04:01,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:04:01,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-31 22:04:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:04:01,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:01,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454384534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:01,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:04:01,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 22 [2024-10-31 22:04:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760506507] [2024-10-31 22:04:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:01,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:04:01,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:04:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:04:01,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 150 [2024-10-31 22:04:01,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 212 transitions, 796 flow. Second operand has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:01,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:01,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 150 [2024-10-31 22:04:01,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:02,134 INFO L124 PetriNetUnfolderBase]: 417/1432 cut-off events. [2024-10-31 22:04:02,135 INFO L125 PetriNetUnfolderBase]: For 642/677 co-relation queries the response was YES. [2024-10-31 22:04:02,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3437 conditions, 1432 events. 417/1432 cut-off events. For 642/677 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9205 event pairs, 108 based on Foata normal form. 21/1437 useless extension candidates. Maximal degree in co-relation 3238. Up to 601 conditions per place. [2024-10-31 22:04:02,148 INFO L140 encePairwiseOnDemand]: 132/150 looper letters, 98 selfloop transitions, 54 changer transitions 6/295 dead transitions. [2024-10-31 22:04:02,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 295 transitions, 1464 flow [2024-10-31 22:04:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:04:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:04:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 931 transitions. [2024-10-31 22:04:02,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8866666666666667 [2024-10-31 22:04:02,152 INFO L175 Difference]: Start difference. First operand has 195 places, 212 transitions, 796 flow. Second operand 7 states and 931 transitions. [2024-10-31 22:04:02,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 295 transitions, 1464 flow [2024-10-31 22:04:02,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 295 transitions, 1440 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-31 22:04:02,164 INFO L231 Difference]: Finished difference. Result has 200 places, 263 transitions, 1281 flow [2024-10-31 22:04:02,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1281, PETRI_PLACES=200, PETRI_TRANSITIONS=263} [2024-10-31 22:04:02,166 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 50 predicate places. [2024-10-31 22:04:02,166 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 263 transitions, 1281 flow [2024-10-31 22:04:02,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:02,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:02,168 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:02,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:04:02,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:02,370 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:02,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1173897857, now seen corresponding path program 1 times [2024-10-31 22:04:02,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:02,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223622262] [2024-10-31 22:04:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:02,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:02,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:02,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223622262] [2024-10-31 22:04:02,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223622262] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:02,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977621984] [2024-10-31 22:04:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:02,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:02,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:02,906 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:02,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:04:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:03,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:04:03,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:03,135 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:03,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:03,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977621984] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:03,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:03,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-31 22:04:03,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651369300] [2024-10-31 22:04:03,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:03,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-31 22:04:03,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:03,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-31 22:04:03,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:04:03,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-10-31 22:04:03,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 263 transitions, 1281 flow. Second operand has 23 states, 23 states have (on average 136.08695652173913) internal successors, (3130), 23 states have internal predecessors, (3130), 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 22:04:03,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:03,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-10-31 22:04:03,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:04,132 INFO L124 PetriNetUnfolderBase]: 227/1138 cut-off events. [2024-10-31 22:04:04,132 INFO L125 PetriNetUnfolderBase]: For 986/1015 co-relation queries the response was YES. [2024-10-31 22:04:04,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2862 conditions, 1138 events. 227/1138 cut-off events. For 986/1015 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7345 event pairs, 39 based on Foata normal form. 7/1132 useless extension candidates. Maximal degree in co-relation 2581. Up to 212 conditions per place. [2024-10-31 22:04:04,142 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 21 selfloop transitions, 30 changer transitions 0/280 dead transitions. [2024-10-31 22:04:04,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 280 transitions, 1505 flow [2024-10-31 22:04:04,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-31 22:04:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-31 22:04:04,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4074 transitions. [2024-10-31 22:04:04,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9053333333333333 [2024-10-31 22:04:04,151 INFO L175 Difference]: Start difference. First operand has 200 places, 263 transitions, 1281 flow. Second operand 30 states and 4074 transitions. [2024-10-31 22:04:04,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 280 transitions, 1505 flow [2024-10-31 22:04:04,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 280 transitions, 1496 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:04,164 INFO L231 Difference]: Finished difference. Result has 232 places, 273 transitions, 1424 flow [2024-10-31 22:04:04,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1424, PETRI_PLACES=232, PETRI_TRANSITIONS=273} [2024-10-31 22:04:04,165 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 82 predicate places. [2024-10-31 22:04:04,166 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 273 transitions, 1424 flow [2024-10-31 22:04:04,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 136.08695652173913) internal successors, (3130), 23 states have internal predecessors, (3130), 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 22:04:04,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:04,167 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:04,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:04:04,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:04:04,372 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:04,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:04,372 INFO L85 PathProgramCache]: Analyzing trace with hash 106860410, now seen corresponding path program 2 times [2024-10-31 22:04:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:04,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686783649] [2024-10-31 22:04:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-31 22:04:05,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:05,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686783649] [2024-10-31 22:04:05,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686783649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:05,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:05,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:05,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526175824] [2024-10-31 22:04:05,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:05,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:05,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:05,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:05,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:05,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 150 [2024-10-31 22:04:05,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 273 transitions, 1424 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 22:04:05,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:05,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 150 [2024-10-31 22:04:05,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:06,159 INFO L124 PetriNetUnfolderBase]: 571/1827 cut-off events. [2024-10-31 22:04:06,159 INFO L125 PetriNetUnfolderBase]: For 2442/2490 co-relation queries the response was YES. [2024-10-31 22:04:06,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5549 conditions, 1827 events. 571/1827 cut-off events. For 2442/2490 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 12273 event pairs, 127 based on Foata normal form. 25/1828 useless extension candidates. Maximal degree in co-relation 5266. Up to 841 conditions per place. [2024-10-31 22:04:06,177 INFO L140 encePairwiseOnDemand]: 133/150 looper letters, 120 selfloop transitions, 58 changer transitions 39/365 dead transitions. [2024-10-31 22:04:06,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 365 transitions, 2382 flow [2024-10-31 22:04:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:06,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 802 transitions. [2024-10-31 22:04:06,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8911111111111111 [2024-10-31 22:04:06,180 INFO L175 Difference]: Start difference. First operand has 232 places, 273 transitions, 1424 flow. Second operand 6 states and 802 transitions. [2024-10-31 22:04:06,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 365 transitions, 2382 flow [2024-10-31 22:04:06,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 365 transitions, 2336 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-31 22:04:06,202 INFO L231 Difference]: Finished difference. Result has 223 places, 300 transitions, 1786 flow [2024-10-31 22:04:06,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=1378, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1786, PETRI_PLACES=223, PETRI_TRANSITIONS=300} [2024-10-31 22:04:06,203 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 73 predicate places. [2024-10-31 22:04:06,203 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 300 transitions, 1786 flow [2024-10-31 22:04:06,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 22:04:06,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:06,204 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:06,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:06,205 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:06,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash 126073202, now seen corresponding path program 1 times [2024-10-31 22:04:06,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:06,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194778979] [2024-10-31 22:04:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:06,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:06,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:06,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:06,338 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:04:06,340 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-31 22:04:06,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-31 22:04:06,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-31 22:04:06,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-31 22:04:06,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-31 22:04:06,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-31 22:04:06,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-31 22:04:06,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:04:06,344 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-10-31 22:04:06,439 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:04:06,439 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:04:06,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:04:06 BasicIcfg [2024-10-31 22:04:06,446 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:04:06,446 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:06,446 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:06,447 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:06,447 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:53" (3/4) ... [2024-10-31 22:04:06,449 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:04:06,540 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:04:06,540 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:06,541 INFO L158 Benchmark]: Toolchain (without parser) took 14172.73ms. Allocated memory was 136.3MB in the beginning and 264.2MB in the end (delta: 127.9MB). Free memory was 96.0MB in the beginning and 211.2MB in the end (delta: -115.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,541 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory was 107.4MB in the beginning and 107.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:06,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.82ms. Allocated memory is still 136.3MB. Free memory was 96.0MB in the beginning and 72.0MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.12ms. Allocated memory is still 136.3MB. Free memory was 72.0MB in the beginning and 69.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,543 INFO L158 Benchmark]: Boogie Preprocessor took 56.85ms. Allocated memory is still 136.3MB. Free memory was 69.7MB in the beginning and 67.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,543 INFO L158 Benchmark]: RCFGBuilder took 722.93ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 67.1MB in the beginning and 149.8MB in the end (delta: -82.7MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,544 INFO L158 Benchmark]: TraceAbstraction took 12451.64ms. Allocated memory was 182.5MB in the beginning and 264.2MB in the end (delta: 81.8MB). Free memory was 149.8MB in the beginning and 219.6MB in the end (delta: -69.8MB). Peak memory consumption was 152.5MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,544 INFO L158 Benchmark]: Witness Printer took 94.00ms. Allocated memory is still 264.2MB. Free memory was 219.6MB in the beginning and 211.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory was 107.4MB in the beginning and 107.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.82ms. Allocated memory is still 136.3MB. Free memory was 96.0MB in the beginning and 72.0MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.12ms. Allocated memory is still 136.3MB. Free memory was 72.0MB in the beginning and 69.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.85ms. Allocated memory is still 136.3MB. Free memory was 69.7MB in the beginning and 67.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 722.93ms. Allocated memory was 136.3MB in the beginning and 182.5MB in the end (delta: 46.1MB). Free memory was 67.1MB in the beginning and 149.8MB in the end (delta: -82.7MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12451.64ms. Allocated memory was 182.5MB in the beginning and 264.2MB in the end (delta: 81.8MB). Free memory was 149.8MB in the beginning and 219.6MB in the end (delta: -69.8MB). Peak memory consumption was 152.5MB. Max. memory is 16.1GB. * Witness Printer took 94.00ms. Allocated memory is still 264.2MB. Free memory was 219.6MB in the beginning and 211.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; VAL [data={1:0}] [L685] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L695] 0 int i = __VERIFIER_nondet_int(); VAL [data={1:0}, i=0, m={2:0}] [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}, m={2:0}] [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; VAL [data={1:0}, i=0, m={2:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] EXPR 1 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] EXPR 0 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [688] and C: data[4]++ [700] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 176 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.2s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 572 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1420 IncrementalHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 119 mSolverCounterUnsat, 13 mSDtfsCounter, 1420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1054 GetRequests, 927 SyntacticMatches, 11 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1786occurred in iteration=7, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1618 NumberOfCodeBlocks, 1568 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1801 ConstructedInterpolants, 0 QuantifiedInterpolants, 2972 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1241 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 365/888 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:04:06,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc54fd7-57c5-49e0-b28d-aa7bed5e23db/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE