./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX --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 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:57:13,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:57:14,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:57:14,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:57:14,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:57:14,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:57:14,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:57:14,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:57:14,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:57:14,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:57:14,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:57:14,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:57:14,084 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:57:14,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:57:14,089 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:57:14,090 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:57:14,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:57:14,091 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:57:14,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:57:14,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:57:14,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:57:14,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:57:14,094 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:57:14,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:57:14,095 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:57:14,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:57:14,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:57:14,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:57:14,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:57:14,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:57:14,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:57:14,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:14,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:57:14,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:57:14,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:57:14,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:57:14,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:57:14,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:57:14,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:57:14,100 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:57:14,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:57:14,100 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_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 [2024-11-08 18:57:14,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:57:14,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:57:14,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:57:14,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:57:14,494 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:57:14,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i Unable to find full path for "g++" [2024-11-08 18:57:16,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:57:16,945 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:57:16,946 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/sv-benchmarks/c/goblint-regression/03-practical_15-exit_problems.i [2024-11-08 18:57:16,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/data/3c91b3cd6/cb8f1775c33a44b8a2a3d7fdd81841a1/FLAGa2c056e3c [2024-11-08 18:57:16,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/data/3c91b3cd6/cb8f1775c33a44b8a2a3d7fdd81841a1 [2024-11-08 18:57:16,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:57:16,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:57:16,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:16,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:57:17,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:57:17,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:16" (1/1) ... [2024-11-08 18:57:17,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66acbddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:17, skipping insertion in model container [2024-11-08 18:57:17,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:16" (1/1) ... [2024-11-08 18:57:17,083 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:57:17,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:17,817 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:57:17,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:18,000 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:57:18,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18 WrapperNode [2024-11-08 18:57:18,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:18,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:18,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:57:18,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:57:18,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,110 INFO L138 Inliner]: procedures = 264, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-11-08 18:57:18,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:18,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:57:18,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:57:18,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:57:18,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:57:18,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:57:18,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:57:18,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:57:18,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (1/1) ... [2024-11-08 18:57:18,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:18,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:18,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:57:18,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:57:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:57:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:57:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:57:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:57:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:57:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 18:57:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:57:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:57:18,263 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:57:18,414 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:57:18,417 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:57:18,628 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:57:18,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:57:18,658 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:57:18,658 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:57:18,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:18 BoogieIcfgContainer [2024-11-08 18:57:18,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:57:18,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:57:18,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:57:18,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:57:18,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:57:16" (1/3) ... [2024-11-08 18:57:18,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3c342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:18, skipping insertion in model container [2024-11-08 18:57:18,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:18" (2/3) ... [2024-11-08 18:57:18,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3c342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:18, skipping insertion in model container [2024-11-08 18:57:18,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:18" (3/3) ... [2024-11-08 18:57:18,673 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_15-exit_problems.i [2024-11-08 18:57:18,696 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:57:18,697 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-08 18:57:18,697 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:57:18,761 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:57:18,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 162 flow [2024-11-08 18:57:18,861 INFO L124 PetriNetUnfolderBase]: 2/78 cut-off events. [2024-11-08 18:57:18,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:57:18,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-11-08 18:57:18,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 79 transitions, 162 flow [2024-11-08 18:57:18,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 78 transitions, 159 flow [2024-11-08 18:57:18,902 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:57:18,912 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;@323d3d5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:57:18,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-08 18:57:18,926 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:57:18,927 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-08 18:57:18,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:57:18,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:18,928 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] [2024-11-08 18:57:18,928 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 18:57:18,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1875509136, now seen corresponding path program 1 times [2024-11-08 18:57:18,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:18,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454653795] [2024-11-08 18:57:18,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:18,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:19,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:19,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:19,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454653795] [2024-11-08 18:57:19,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454653795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:19,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:19,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:57:19,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982659733] [2024-11-08 18:57:19,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:19,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:19,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:19,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 79 [2024-11-08 18:57:19,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 78 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2024-11-08 18:57:19,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:19,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 79 [2024-11-08 18:57:19,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:19,551 INFO L124 PetriNetUnfolderBase]: 31/201 cut-off events. [2024-11-08 18:57:19,551 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:57:19,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 201 events. 31/201 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 820 event pairs, 10 based on Foata normal form. 14/194 useless extension candidates. Maximal degree in co-relation 255. Up to 44 conditions per place. [2024-11-08 18:57:19,558 INFO L140 encePairwiseOnDemand]: 68/79 looper letters, 17 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-11-08 18:57:19,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 195 flow [2024-11-08 18:57:19,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:57:19,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-11-08 18:57:19,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9156118143459916 [2024-11-08 18:57:19,578 INFO L175 Difference]: Start difference. First operand has 80 places, 78 transitions, 159 flow. Second operand 3 states and 217 transitions. [2024-11-08 18:57:19,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 195 flow [2024-11-08 18:57:19,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 73 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:57:19,591 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 180 flow [2024-11-08 18:57:19,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2024-11-08 18:57:19,601 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, -10 predicate places. [2024-11-08 18:57:19,601 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 180 flow [2024-11-08 18:57:19,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2024-11-08 18:57:19,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:19,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:19,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:57:19,602 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 18:57:19,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash -316785682, now seen corresponding path program 1 times [2024-11-08 18:57:19,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:19,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226729566] [2024-11-08 18:57:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:19,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:19,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226729566] [2024-11-08 18:57:19,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226729566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:19,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:19,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:57:19,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940423017] [2024-11-08 18:57:19,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:19,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:19,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:19,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:19,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:19,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 79 [2024-11-08 18:57:19,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-11-08 18:57:19,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:19,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 79 [2024-11-08 18:57:19,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:19,998 INFO L124 PetriNetUnfolderBase]: 46/249 cut-off events. [2024-11-08 18:57:19,998 INFO L125 PetriNetUnfolderBase]: For 89/92 co-relation queries the response was YES. [2024-11-08 18:57:20,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 249 events. 46/249 cut-off events. For 89/92 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1171 event pairs, 21 based on Foata normal form. 2/231 useless extension candidates. Maximal degree in co-relation 422. Up to 86 conditions per place. [2024-11-08 18:57:20,005 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 16 selfloop transitions, 7 changer transitions 1/76 dead transitions. [2024-11-08 18:57:20,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 252 flow [2024-11-08 18:57:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:57:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-11-08 18:57:20,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.869198312236287 [2024-11-08 18:57:20,010 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 180 flow. Second operand 3 states and 206 transitions. [2024-11-08 18:57:20,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 252 flow [2024-11-08 18:57:20,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 76 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:57:20,019 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 224 flow [2024-11-08 18:57:20,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2024-11-08 18:57:20,020 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, -8 predicate places. [2024-11-08 18:57:20,021 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 224 flow [2024-11-08 18:57:20,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-11-08 18:57:20,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:20,022 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] [2024-11-08 18:57:20,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:57:20,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 18:57:20,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:20,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1023761286, now seen corresponding path program 1 times [2024-11-08 18:57:20,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:20,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726483361] [2024-11-08 18:57:20,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:20,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:20,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:57:20,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:20,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726483361] [2024-11-08 18:57:20,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726483361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:20,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:20,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:57:20,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206920019] [2024-11-08 18:57:20,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:20,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:20,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:20,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:20,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:20,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 79 [2024-11-08 18:57:20,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2024-11-08 18:57:20,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:20,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 79 [2024-11-08 18:57:20,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:20,321 INFO L124 PetriNetUnfolderBase]: 63/317 cut-off events. [2024-11-08 18:57:20,321 INFO L125 PetriNetUnfolderBase]: For 198/202 co-relation queries the response was YES. [2024-11-08 18:57:20,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 317 events. 63/317 cut-off events. For 198/202 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1571 event pairs, 25 based on Foata normal form. 1/301 useless extension candidates. Maximal degree in co-relation 614. Up to 108 conditions per place. [2024-11-08 18:57:20,324 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 16 selfloop transitions, 7 changer transitions 7/81 dead transitions. [2024-11-08 18:57:20,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 308 flow [2024-11-08 18:57:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:57:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-11-08 18:57:20,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8481012658227848 [2024-11-08 18:57:20,330 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 224 flow. Second operand 3 states and 201 transitions. [2024-11-08 18:57:20,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 308 flow [2024-11-08 18:57:20,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 81 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:57:20,340 INFO L231 Difference]: Finished difference. Result has 74 places, 73 transitions, 242 flow [2024-11-08 18:57:20,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2024-11-08 18:57:20,341 INFO L277 CegarLoopForPetriNet]: 80 programPoint places, -6 predicate places. [2024-11-08 18:57:20,342 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 242 flow [2024-11-08 18:57:20,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2024-11-08 18:57:20,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:20,342 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] [2024-11-08 18:57:20,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:57:20,343 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 18:57:20,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1602365906, now seen corresponding path program 1 times [2024-11-08 18:57:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:20,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255739029] [2024-11-08 18:57:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:20,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:57:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:20,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:57:20,456 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:57:20,457 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2024-11-08 18:57:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-08 18:57:20,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-08 18:57:20,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-08 18:57:20,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-08 18:57:20,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-08 18:57:20,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-08 18:57:20,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-08 18:57:20,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:57:20,467 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 18:57:20,534 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:57:20,534 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:57:20,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:57:20 BasicIcfg [2024-11-08 18:57:20,545 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:57:20,546 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:57:20,546 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:57:20,546 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:57:20,547 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:18" (3/4) ... [2024-11-08 18:57:20,548 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 18:57:20,632 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:57:20,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:57:20,633 INFO L158 Benchmark]: Toolchain (without parser) took 3639.56ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 122.1MB in the beginning and 104.9MB in the end (delta: 17.2MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2024-11-08 18:57:20,638 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory was 92.3MB in the beginning and 92.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:20,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1006.09ms. Allocated memory is still 153.1MB. Free memory was 122.1MB in the beginning and 90.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-08 18:57:20,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.09ms. Allocated memory is still 153.1MB. Free memory was 90.6MB in the beginning and 121.4MB in the end (delta: -30.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-11-08 18:57:20,639 INFO L158 Benchmark]: Boogie Preprocessor took 70.17ms. Allocated memory is still 153.1MB. Free memory was 121.4MB in the beginning and 119.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:57:20,639 INFO L158 Benchmark]: RCFGBuilder took 476.97ms. Allocated memory is still 153.1MB. Free memory was 119.1MB in the beginning and 104.7MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:57:20,640 INFO L158 Benchmark]: TraceAbstraction took 1884.14ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 104.4MB in the beginning and 109.1MB in the end (delta: -4.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-08 18:57:20,640 INFO L158 Benchmark]: Witness Printer took 86.78ms. Allocated memory is still 184.5MB. Free memory was 109.1MB in the beginning and 104.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:57:20,643 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory was 92.3MB in the beginning and 92.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1006.09ms. Allocated memory is still 153.1MB. Free memory was 122.1MB in the beginning and 90.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.09ms. Allocated memory is still 153.1MB. Free memory was 90.6MB in the beginning and 121.4MB in the end (delta: -30.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.17ms. Allocated memory is still 153.1MB. Free memory was 121.4MB in the beginning and 119.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.97ms. Allocated memory is still 153.1MB. Free memory was 119.1MB in the beginning and 104.7MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1884.14ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 104.4MB in the beginning and 109.1MB in the end (delta: -4.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 86.78ms. Allocated memory is still 184.5MB. Free memory was 109.1MB in the beginning and 104.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 923]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int glob; VAL [glob=0] [L919] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex={1:0}] [L920] 0 pthread_mutex_t bad = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [bad={2:0}, glob=0, mutex={1:0}] [L934] 0 pthread_t id; VAL [bad={2:0}, glob=0, mutex={1:0}] [L935] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, bad={2:0}, glob=0, id=-1, mutex={1:0}] [L936] COND TRUE 0 1 [L937] CALL 0 f(&bad) [L929] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, bad={2:0}, glob=0, mutex={1:0}] [L923] 0 glob++ VAL [\old(arg)={0:0}, \old(m)={2:0}, arg={0:0}, bad={2:0}, glob=0, m={2:0}, mutex={1:0}] [L929] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, bad={2:0}, glob=1, mutex={1:0}] [L923] 0 glob++ VAL [\old(arg)={0:0}, \old(m)={2:0}, arg={0:0}, bad={2:0}, glob=1, m={2:0}, mutex={1:0}] Now there is a data race on ~glob~0 between C: glob++ [929] and C: glob++ [923] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: 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: 929]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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, 98 locations, 8 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 6 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-08 18:57:20,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e34d7a-ac3e-4253-8c30-b04c1bae8b53/bin/uautomizer-verify-jihMAELWvX/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