./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB --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 e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:02:52,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:02:52,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 05:02:52,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:02:52,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:02:52,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:02:52,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:02:52,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:02:52,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:02:52,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:02:52,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:02:52,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:02:52,233 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:02:52,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:02:52,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:02:52,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:02:52,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:02:52,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:02:52,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:02:52,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:02:52,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:02:52,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:02:52,237 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 05:02:52,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:02:52,237 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:02:52,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:02:52,237 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:02:52,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:02:52,237 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:02:52,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:02:52,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:02:52,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:02:52,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:02:52,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:02:52,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:02:52,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:02:52,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:02:52,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:02:52,240 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB 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 -> e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e [2024-11-28 05:02:52,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:02:52,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:02:52,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:02:52,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:02:52,592 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:02:52,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-lit/fkp2013-2.i [2024-11-28 05:02:55,546 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/data/ce0956515/90d7cba963094ac697aa4a9a8e9bad3e/FLAG84061989f [2024-11-28 05:02:55,925 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:02:55,925 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/sv-benchmarks/c/pthread-lit/fkp2013-2.i [2024-11-28 05:02:55,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/data/ce0956515/90d7cba963094ac697aa4a9a8e9bad3e/FLAG84061989f [2024-11-28 05:02:55,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/data/ce0956515/90d7cba963094ac697aa4a9a8e9bad3e [2024-11-28 05:02:55,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:02:55,954 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:02:55,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:02:55,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:02:55,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:02:55,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:02:55" (1/1) ... [2024-11-28 05:02:55,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51083a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:55, skipping insertion in model container [2024-11-28 05:02:55,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:02:55" (1/1) ... [2024-11-28 05:02:55,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:02:56,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:02:56,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:02:56,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:02:56,462 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:02:56,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56 WrapperNode [2024-11-28 05:02:56,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:02:56,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:02:56,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:02:56,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:02:56,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,493 INFO L138 Inliner]: procedures = 171, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2024-11-28 05:02:56,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:02:56,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:02:56,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:02:56,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:02:56,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:02:56,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:02:56,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:02:56,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:02:56,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (1/1) ... [2024-11-28 05:02:56,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:02:56,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:56,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:02:56,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:02:56,591 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-28 05:02:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-28 05:02:56,592 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 05:02:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 05:02:56,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:02:56,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 05:02:56,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:02:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:02:56,594 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:02:56,719 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:02:56,720 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:02:56,860 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:02:56,861 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:02:56,873 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:02:56,873 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:02:56,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:56 BoogieIcfgContainer [2024-11-28 05:02:56,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:02:56,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:02:56,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:02:56,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:02:56,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:02:55" (1/3) ... [2024-11-28 05:02:56,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a585ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:56, skipping insertion in model container [2024-11-28 05:02:56,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:02:56" (2/3) ... [2024-11-28 05:02:56,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a585ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:02:56, skipping insertion in model container [2024-11-28 05:02:56,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:56" (3/3) ... [2024-11-28 05:02:56,884 INFO L128 eAbstractionObserver]: Analyzing ICFG fkp2013-2.i [2024-11-28 05:02:56,898 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:02:56,900 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fkp2013-2.i that has 3 procedures, 76 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-28 05:02:56,900 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:02:56,993 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 05:02:57,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 166 flow [2024-11-28 05:02:57,086 INFO L124 PetriNetUnfolderBase]: 4/89 cut-off events. [2024-11-28 05:02:57,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:02:57,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 4/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 4 conditions per place. [2024-11-28 05:02:57,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 166 flow [2024-11-28 05:02:57,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 163 flow [2024-11-28 05:02:57,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:02:57,123 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;@132a1173, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:02:57,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 05:02:57,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:02:57,131 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-28 05:02:57,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:02:57,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:57,132 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:57,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 05:02:57,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:57,140 INFO L85 PathProgramCache]: Analyzing trace with hash -380619670, now seen corresponding path program 1 times [2024-11-28 05:02:57,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:57,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904716520] [2024-11-28 05:02:57,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:57,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:57,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:57,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:57,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904716520] [2024-11-28 05:02:57,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904716520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:57,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:57,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:02:57,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905702764] [2024-11-28 05:02:57,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:57,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:57,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:57,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:57,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:57,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 79 [2024-11-28 05:02:57,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-28 05:02:57,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:57,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 79 [2024-11-28 05:02:57,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:57,550 INFO L124 PetriNetUnfolderBase]: 11/187 cut-off events. [2024-11-28 05:02:57,551 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 05:02:57,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 187 events. 11/187 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 720 event pairs, 11 based on Foata normal form. 18/178 useless extension candidates. Maximal degree in co-relation 194. Up to 31 conditions per place. [2024-11-28 05:02:57,556 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 9 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-11-28 05:02:57,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 173 flow [2024-11-28 05:02:57,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:02:57,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-11-28 05:02:57,577 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8607594936708861 [2024-11-28 05:02:57,579 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 163 flow. Second operand 3 states and 204 transitions. [2024-11-28 05:02:57,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 173 flow [2024-11-28 05:02:57,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:02:57,593 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 154 flow [2024-11-28 05:02:57,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=79, PETRI_TRANSITIONS=72} [2024-11-28 05:02:57,602 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, -2 predicate places. [2024-11-28 05:02:57,602 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 154 flow [2024-11-28 05:02:57,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-11-28 05:02:57,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:57,606 INFO L206 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] [2024-11-28 05:02:57,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:02:57,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 05:02:57,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash 959774408, now seen corresponding path program 1 times [2024-11-28 05:02:57,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:57,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680373743] [2024-11-28 05:02:57,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:57,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:57,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680373743] [2024-11-28 05:02:57,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680373743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:57,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:57,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:02:57,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907885739] [2024-11-28 05:02:57,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:57,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:57,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:57,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:57,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:57,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2024-11-28 05:02:57,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-28 05:02:57,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:57,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2024-11-28 05:02:57,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:57,834 INFO L124 PetriNetUnfolderBase]: 7/165 cut-off events. [2024-11-28 05:02:57,835 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 05:02:57,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 165 events. 7/165 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 622 event pairs, 3 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 179. Up to 19 conditions per place. [2024-11-28 05:02:57,838 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 9 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-28 05:02:57,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 189 flow [2024-11-28 05:02:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:57,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:02:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-11-28 05:02:57,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8860759493670886 [2024-11-28 05:02:57,842 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 154 flow. Second operand 3 states and 210 transitions. [2024-11-28 05:02:57,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 189 flow [2024-11-28 05:02:57,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 185 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:02:57,847 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 178 flow [2024-11-28 05:02:57,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2024-11-28 05:02:57,849 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, -1 predicate places. [2024-11-28 05:02:57,849 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 178 flow [2024-11-28 05:02:57,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-28 05:02:57,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:57,850 INFO L206 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] [2024-11-28 05:02:57,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:02:57,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 05:02:57,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:57,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1417076683, now seen corresponding path program 1 times [2024-11-28 05:02:57,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:57,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789625555] [2024-11-28 05:02:57,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:57,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:57,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:57,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789625555] [2024-11-28 05:02:57,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789625555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:57,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:57,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:02:57,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302203997] [2024-11-28 05:02:57,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:57,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:57,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:57,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:57,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:58,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 79 [2024-11-28 05:02:58,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-28 05:02:58,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:58,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 79 [2024-11-28 05:02:58,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:58,071 INFO L124 PetriNetUnfolderBase]: 6/179 cut-off events. [2024-11-28 05:02:58,072 INFO L125 PetriNetUnfolderBase]: For 23/25 co-relation queries the response was YES. [2024-11-28 05:02:58,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 179 events. 6/179 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 656 event pairs, 2 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 218. Up to 23 conditions per place. [2024-11-28 05:02:58,073 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 11 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-28 05:02:58,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 77 transitions, 218 flow [2024-11-28 05:02:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:02:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-28 05:02:58,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8818565400843882 [2024-11-28 05:02:58,075 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 178 flow. Second operand 3 states and 209 transitions. [2024-11-28 05:02:58,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 77 transitions, 218 flow [2024-11-28 05:02:58,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:02:58,078 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 202 flow [2024-11-28 05:02:58,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-11-28 05:02:58,079 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2024-11-28 05:02:58,079 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 202 flow [2024-11-28 05:02:58,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-11-28 05:02:58,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:58,079 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:58,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:02:58,080 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 05:02:58,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:58,081 INFO L85 PathProgramCache]: Analyzing trace with hash 814986790, now seen corresponding path program 1 times [2024-11-28 05:02:58,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:58,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117497017] [2024-11-28 05:02:58,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:58,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:02:58,107 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:02:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:02:58,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:02:58,143 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:02:58,144 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-28 05:02:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 05:02:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 05:02:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 05:02:58,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-28 05:02:58,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2024-11-28 05:02:58,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-28 05:02:58,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 05:02:58,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 05:02:58,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:02:58,148 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 05:02:58,151 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 05:02:58,151 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 05:02:58,205 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 05:02:58,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 114 transitions, 248 flow [2024-11-28 05:02:58,249 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-28 05:02:58,249 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 05:02:58,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 120 events. 5/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 127. Up to 6 conditions per place. [2024-11-28 05:02:58,251 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 114 transitions, 248 flow [2024-11-28 05:02:58,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 93 transitions, 199 flow [2024-11-28 05:02:58,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:02:58,258 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;@132a1173, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:02:58,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-28 05:02:58,265 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:02:58,265 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-28 05:02:58,265 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:02:58,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:58,265 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:58,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 05:02:58,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:58,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1012632406, now seen corresponding path program 1 times [2024-11-28 05:02:58,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:58,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260443780] [2024-11-28 05:02:58,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:58,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:58,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260443780] [2024-11-28 05:02:58,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260443780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:58,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:58,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:02:58,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431284889] [2024-11-28 05:02:58,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:58,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:58,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:58,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:58,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:58,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 114 [2024-11-28 05:02:58,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-28 05:02:58,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:58,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 114 [2024-11-28 05:02:58,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:58,533 INFO L124 PetriNetUnfolderBase]: 65/495 cut-off events. [2024-11-28 05:02:58,533 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-28 05:02:58,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 495 events. 65/495 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2971 event pairs, 65 based on Foata normal form. 56/469 useless extension candidates. Maximal degree in co-relation 610. Up to 121 conditions per place. [2024-11-28 05:02:58,540 INFO L140 encePairwiseOnDemand]: 108/114 looper letters, 12 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2024-11-28 05:02:58,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 87 transitions, 215 flow [2024-11-28 05:02:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:02:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-11-28 05:02:58,543 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2024-11-28 05:02:58,543 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 199 flow. Second operand 3 states and 288 transitions. [2024-11-28 05:02:58,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 87 transitions, 215 flow [2024-11-28 05:02:58,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 87 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:02:58,550 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 190 flow [2024-11-28 05:02:58,550 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2024-11-28 05:02:58,551 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -2 predicate places. [2024-11-28 05:02:58,551 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 190 flow [2024-11-28 05:02:58,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-11-28 05:02:58,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:58,551 INFO L206 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] [2024-11-28 05:02:58,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:02:58,552 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 05:02:58,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:58,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1178949704, now seen corresponding path program 1 times [2024-11-28 05:02:58,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:58,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216199011] [2024-11-28 05:02:58,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:58,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:58,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:58,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:58,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216199011] [2024-11-28 05:02:58,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216199011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:58,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:58,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:02:58,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472731141] [2024-11-28 05:02:58,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:58,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:58,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:58,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:58,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:58,672 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 114 [2024-11-28 05:02:58,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 87 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-28 05:02:58,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:58,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 114 [2024-11-28 05:02:58,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:58,822 INFO L124 PetriNetUnfolderBase]: 97/647 cut-off events. [2024-11-28 05:02:58,822 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-28 05:02:58,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 647 events. 97/647 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4325 event pairs, 36 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 885. Up to 142 conditions per place. [2024-11-28 05:02:58,828 INFO L140 encePairwiseOnDemand]: 103/114 looper letters, 17 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2024-11-28 05:02:58,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 97 transitions, 268 flow [2024-11-28 05:02:58,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:02:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-11-28 05:02:58,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8538011695906432 [2024-11-28 05:02:58,833 INFO L175 Difference]: Start difference. First operand has 96 places, 87 transitions, 190 flow. Second operand 3 states and 292 transitions. [2024-11-28 05:02:58,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 97 transitions, 268 flow [2024-11-28 05:02:58,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:02:58,836 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 256 flow [2024-11-28 05:02:58,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-28 05:02:58,837 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-28 05:02:58,837 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 256 flow [2024-11-28 05:02:58,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-11-28 05:02:58,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:58,838 INFO L206 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] [2024-11-28 05:02:58,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:02:58,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 05:02:58,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:58,840 INFO L85 PathProgramCache]: Analyzing trace with hash -345505184, now seen corresponding path program 1 times [2024-11-28 05:02:58,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:58,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195962549] [2024-11-28 05:02:58,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:58,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:58,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195962549] [2024-11-28 05:02:58,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195962549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:58,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:58,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:02:58,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952740951] [2024-11-28 05:02:58,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:58,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:02:58,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:58,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:02:58,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:02:58,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 114 [2024-11-28 05:02:58,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-28 05:02:58,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:58,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 114 [2024-11-28 05:02:58,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:59,204 INFO L124 PetriNetUnfolderBase]: 198/1010 cut-off events. [2024-11-28 05:02:59,205 INFO L125 PetriNetUnfolderBase]: For 387/395 co-relation queries the response was YES. [2024-11-28 05:02:59,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1010 events. 198/1010 cut-off events. For 387/395 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7685 event pairs, 63 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 1809. Up to 256 conditions per place. [2024-11-28 05:02:59,219 INFO L140 encePairwiseOnDemand]: 107/114 looper letters, 17 selfloop transitions, 10 changer transitions 0/104 dead transitions. [2024-11-28 05:02:59,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 351 flow [2024-11-28 05:02:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:02:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:02:59,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-11-28 05:02:59,221 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8654970760233918 [2024-11-28 05:02:59,221 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 256 flow. Second operand 3 states and 296 transitions. [2024-11-28 05:02:59,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 351 flow [2024-11-28 05:02:59,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 104 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:02:59,229 INFO L231 Difference]: Finished difference. Result has 100 places, 103 transitions, 326 flow [2024-11-28 05:02:59,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=100, PETRI_TRANSITIONS=103} [2024-11-28 05:02:59,232 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 2 predicate places. [2024-11-28 05:02:59,233 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 103 transitions, 326 flow [2024-11-28 05:02:59,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-28 05:02:59,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:59,233 INFO L206 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] [2024-11-28 05:02:59,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:02:59,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 05:02:59,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:59,234 INFO L85 PathProgramCache]: Analyzing trace with hash 485802029, now seen corresponding path program 1 times [2024-11-28 05:02:59,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:59,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198834326] [2024-11-28 05:02:59,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:59,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:02:59,257 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:02:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:02:59,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:02:59,284 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:02:59,285 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2024-11-28 05:02:59,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-28 05:02:59,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-28 05:02:59,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-28 05:02:59,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-28 05:02:59,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2024-11-28 05:02:59,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-28 05:02:59,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-28 05:02:59,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-28 05:02:59,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-28 05:02:59,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-28 05:02:59,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-28 05:02:59,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:02:59,286 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 05:02:59,358 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-28 05:02:59,358 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:02:59,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:02:59 BasicIcfg [2024-11-28 05:02:59,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:02:59,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:02:59,369 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:02:59,369 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:02:59,370 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:02:56" (3/4) ... [2024-11-28 05:02:59,371 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 05:02:59,451 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 2. [2024-11-28 05:02:59,502 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:02:59,503 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:02:59,503 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:02:59,504 INFO L158 Benchmark]: Toolchain (without parser) took 3549.37ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.1MB in the beginning and 191.3MB in the end (delta: -98.2MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. [2024-11-28 05:02:59,504 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:02:59,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.67ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 73.4MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:02:59,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.77ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:02:59,505 INFO L158 Benchmark]: Boogie Preprocessor took 23.99ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.9MB in the end (delta: 878.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:02:59,505 INFO L158 Benchmark]: RCFGBuilder took 350.87ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 58.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:02:59,505 INFO L158 Benchmark]: TraceAbstraction took 2492.45ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 57.8MB in the beginning and 202.3MB in the end (delta: -144.5MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. [2024-11-28 05:02:59,506 INFO L158 Benchmark]: Witness Printer took 133.81ms. Allocated memory is still 352.3MB. Free memory was 202.3MB in the beginning and 191.3MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:02:59,510 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.67ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 73.4MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.77ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.99ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.9MB in the end (delta: 878.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 350.87ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 58.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2492.45ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 57.8MB in the beginning and 202.3MB in the end (delta: -144.5MB). Peak memory consumption was 90.8MB. Max. memory is 16.1GB. * Witness Printer took 133.81ms. Allocated memory is still 352.3MB. Free memory was 202.3MB in the beginning and 191.3MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 699]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; VAL [x=0] [L709] 0 pthread_t t1, t2; VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, x=0] [L710] 0 int i; VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, x=0] [L711] 0 x = 0 VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, x=0] [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, t1=-1, x=0] [L713] 0 i = 0 VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, i=0, t1=-1, x=0] [L713] COND TRUE 0 i < 50 VAL [\old(argc)=52, \old(argv)={49:50}, argc=52, i=0, t1=-1, x=0] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(arg)={0:0}, \old(argc)=52, \old(argv)={49:50}, argc=52, i=0, t1=-1, t2=0, x=0] [L699] 1 x <= 50 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, x=0] [L703] 2 int t; VAL [\old(arg)={0:0}, arg={0:0}, x=0] [L704] 2 t = x VAL [\old(arg)={0:0}, arg={0:0}, t=0, x=0] [L705] 2 x = t + 1 VAL [\old(arg)={0:0}, arg={0:0}, t=0, x=1] [L699] 1 x <= 50 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, t=0, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [705] and C: x <= 50 [699] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: 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: 714]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 111 locations, 9 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 20 mSDtfsCounter, 77 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=202occurred 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, 0.3s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 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, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 144 locations, 12 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 119 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=326occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 05:02:59,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e99b19-dd4f-4799-9e68-c4fc01839cb9/bin/uautomizer-verify-aQ6SnzHsRB/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(DATA-RACE)