./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2014.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_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1 --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 f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:16:00,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:16:00,241 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-01 23:16:00,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:16:00,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:16:00,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:16:00,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:16:00,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:16:00,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:16:00,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:16:00,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:16:00,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:16:00,274 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:16:00,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:16:00,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-01 23:16:00,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 23:16:00,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 23:16:00,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:16:00,276 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:16:00,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:16:00,276 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:16:00,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:00,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:00,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:00,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:16:00,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:00,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:00,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:00,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:16:00,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:16:00,277 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:16:00,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:16:00,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:16:00,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:16:00,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:16:00,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:16:00,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:16:00,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:16:00,278 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_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1 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 -> f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 [2024-12-01 23:16:00,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:16:00,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:16:00,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:16:00,553 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:16:00,553 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:16:00,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-lit/fkp2014.i [2024-12-01 23:16:03,886 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/data/71c5658a5/fa011de54f1c479091de57cd0a019c39/FLAG60f186974 [2024-12-01 23:16:04,137 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:16:04,138 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/sv-benchmarks/c/pthread-lit/fkp2014.i [2024-12-01 23:16:04,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/data/71c5658a5/fa011de54f1c479091de57cd0a019c39/FLAG60f186974 [2024-12-01 23:16:04,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/data/71c5658a5/fa011de54f1c479091de57cd0a019c39 [2024-12-01 23:16:04,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:16:04,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:16:04,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:04,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:16:04,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:16:04,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ce5101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04, skipping insertion in model container [2024-12-01 23:16:04,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,488 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:16:04,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:04,819 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:16:04,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:04,902 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:16:04,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04 WrapperNode [2024-12-01 23:16:04,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:04,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:04,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:16:04,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:16:04,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,942 INFO L138 Inliner]: procedures = 172, calls = 16, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 81 [2024-12-01 23:16:04,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:04,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:16:04,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:16:04,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:16:04,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,957 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:16:04,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:16:04,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:16:04,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:16:04,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (1/1) ... [2024-12-01 23:16:04,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:04,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:16:05,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:16:05,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:16:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-01 23:16:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-12-01 23:16:05,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-12-01 23:16:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:16:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-01 23:16:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-01 23:16:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:16:05,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:16:05,028 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-01 23:16:05,140 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:16:05,141 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:16:05,309 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-01 23:16:05,309 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:16:05,360 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:16:05,360 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-01 23:16:05,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:05 BoogieIcfgContainer [2024-12-01 23:16:05,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:16:05,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:16:05,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:16:05,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:16:05,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:16:04" (1/3) ... [2024-12-01 23:16:05,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edf4587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:05, skipping insertion in model container [2024-12-01 23:16:05,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:04" (2/3) ... [2024-12-01 23:16:05,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edf4587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:05, skipping insertion in model container [2024-12-01 23:16:05,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:05" (3/3) ... [2024-12-01 23:16:05,371 INFO L128 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2024-12-01 23:16:05,385 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:16:05,387 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fkp2014.i that has 2 procedures, 77 locations, 1 initial locations, 1 loop locations, and 7 error locations. [2024-12-01 23:16:05,387 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-01 23:16:05,436 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-01 23:16:05,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 81 transitions, 166 flow [2024-12-01 23:16:05,522 INFO L124 PetriNetUnfolderBase]: 5/91 cut-off events. [2024-12-01 23:16:05,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 23:16:05,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 5/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2024-12-01 23:16:05,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 81 transitions, 166 flow [2024-12-01 23:16:05,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 81 transitions, 166 flow [2024-12-01 23:16:05,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:16:05,555 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;@380d2ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:16:05,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-12-01 23:16:05,563 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 23:16:05,563 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-12-01 23:16:05,563 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 23:16:05,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:05,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:05,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-12-01 23:16:05,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2126085581, now seen corresponding path program 1 times [2024-12-01 23:16:05,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:05,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485683431] [2024-12-01 23:16:05,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:05,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:05,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:05,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:05,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485683431] [2024-12-01 23:16:05,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485683431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:05,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:05,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:05,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864890981] [2024-12-01 23:16:05,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:05,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:05,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:05,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:05,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:05,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-12-01 23:16:05,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 81 transitions, 166 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) [2024-12-01 23:16:05,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:05,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-12-01 23:16:05,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:05,885 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2024-12-01 23:16:05,885 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-01 23:16:05,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 104 events. 3/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 143 event pairs, 3 based on Foata normal form. 8/101 useless extension candidates. Maximal degree in co-relation 73. Up to 16 conditions per place. [2024-12-01 23:16:05,887 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 8 selfloop transitions, 2 changer transitions 1/70 dead transitions. [2024-12-01 23:16:05,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 70 transitions, 164 flow [2024-12-01 23:16:05,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:05,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-12-01 23:16:05,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.831275720164609 [2024-12-01 23:16:05,903 INFO L175 Difference]: Start difference. First operand has 80 places, 81 transitions, 166 flow. Second operand 3 states and 202 transitions. [2024-12-01 23:16:05,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 70 transitions, 164 flow [2024-12-01 23:16:05,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 70 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-01 23:16:05,912 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 146 flow [2024-12-01 23:16:05,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2024-12-01 23:16:05,917 INFO L279 CegarLoopForPetriNet]: 80 programPoint places, -5 predicate places. [2024-12-01 23:16:05,918 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 146 flow [2024-12-01 23:16:05,918 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) [2024-12-01 23:16:05,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:05,918 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] [2024-12-01 23:16:05,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:16:05,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-12-01 23:16:05,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:05,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1493590374, now seen corresponding path program 1 times [2024-12-01 23:16:05,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:05,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295638020] [2024-12-01 23:16:05,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:05,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:06,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:06,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295638020] [2024-12-01 23:16:06,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295638020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:06,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:06,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435866354] [2024-12-01 23:16:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:06,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:06,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:06,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:06,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:06,037 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 81 [2024-12-01 23:16:06,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2024-12-01 23:16:06,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:06,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 81 [2024-12-01 23:16:06,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:06,073 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2024-12-01 23:16:06,073 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-01 23:16:06,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 77 events. 0/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2024-12-01 23:16:06,074 INFO L140 encePairwiseOnDemand]: 78/81 looper letters, 4 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-12-01 23:16:06,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 68 transitions, 156 flow [2024-12-01 23:16:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2024-12-01 23:16:06,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.831275720164609 [2024-12-01 23:16:06,076 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 146 flow. Second operand 3 states and 202 transitions. [2024-12-01 23:16:06,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 68 transitions, 156 flow [2024-12-01 23:16:06,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 23:16:06,079 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 144 flow [2024-12-01 23:16:06,079 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2024-12-01 23:16:06,080 INFO L279 CegarLoopForPetriNet]: 80 programPoint places, -7 predicate places. [2024-12-01 23:16:06,081 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 144 flow [2024-12-01 23:16:06,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2024-12-01 23:16:06,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:06,081 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] [2024-12-01 23:16:06,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:16:06,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-12-01 23:16:06,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:06,082 INFO L85 PathProgramCache]: Analyzing trace with hash -821264100, now seen corresponding path program 1 times [2024-12-01 23:16:06,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:06,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269731402] [2024-12-01 23:16:06,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:06,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:06,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:06,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269731402] [2024-12-01 23:16:06,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269731402] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:06,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:06,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:06,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146583519] [2024-12-01 23:16:06,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:06,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:06,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:06,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:06,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:06,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2024-12-01 23:16:06,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 144 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) [2024-12-01 23:16:06,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:06,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2024-12-01 23:16:06,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:06,191 INFO L124 PetriNetUnfolderBase]: 0/76 cut-off events. [2024-12-01 23:16:06,191 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-01 23:16:06,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 0/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2024-12-01 23:16:06,192 INFO L140 encePairwiseOnDemand]: 79/81 looper letters, 4 selfloop transitions, 1 changer transitions 5/67 dead transitions. [2024-12-01 23:16:06,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 67 transitions, 152 flow [2024-12-01 23:16:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:06,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-12-01 23:16:06,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8395061728395061 [2024-12-01 23:16:06,194 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 144 flow. Second operand 3 states and 204 transitions. [2024-12-01 23:16:06,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 67 transitions, 152 flow [2024-12-01 23:16:06,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 67 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 23:16:06,197 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 130 flow [2024-12-01 23:16:06,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-12-01 23:16:06,198 INFO L279 CegarLoopForPetriNet]: 80 programPoint places, -8 predicate places. [2024-12-01 23:16:06,198 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 130 flow [2024-12-01 23:16:06,198 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) [2024-12-01 23:16:06,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:06,198 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, 1, 1, 1] [2024-12-01 23:16:06,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:16:06,199 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-12-01 23:16:06,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:06,200 INFO L85 PathProgramCache]: Analyzing trace with hash -873901325, now seen corresponding path program 1 times [2024-12-01 23:16:06,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:06,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872498573] [2024-12-01 23:16:06,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:06,230 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 23:16:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:06,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 23:16:06,263 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 23:16:06,264 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-12-01 23:16:06,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-12-01 23:16:06,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-12-01 23:16:06,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-12-01 23:16:06,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-12-01 23:16:06,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-12-01 23:16:06,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-12-01 23:16:06,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:16:06,267 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-01 23:16:06,270 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-01 23:16:06,270 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-01 23:16:06,297 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-01 23:16:06,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 114 transitions, 238 flow [2024-12-01 23:16:06,329 INFO L124 PetriNetUnfolderBase]: 8/139 cut-off events. [2024-12-01 23:16:06,329 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-01 23:16:06,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 139 events. 8/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 238 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 92. Up to 6 conditions per place. [2024-12-01 23:16:06,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 114 transitions, 238 flow [2024-12-01 23:16:06,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 114 transitions, 238 flow [2024-12-01 23:16:06,334 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:16:06,335 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;@380d2ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:16:06,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-12-01 23:16:06,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 23:16:06,338 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-12-01 23:16:06,338 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 23:16:06,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:06,339 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:06,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-12-01 23:16:06,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:06,339 INFO L85 PathProgramCache]: Analyzing trace with hash -760999771, now seen corresponding path program 1 times [2024-12-01 23:16:06,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:06,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352437823] [2024-12-01 23:16:06,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:06,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:06,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:06,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352437823] [2024-12-01 23:16:06,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352437823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:06,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:06,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:06,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397201395] [2024-12-01 23:16:06,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:06,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:06,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:06,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:06,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:06,407 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 114 [2024-12-01 23:16:06,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 114 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2024-12-01 23:16:06,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:06,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 114 [2024-12-01 23:16:06,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:06,525 INFO L124 PetriNetUnfolderBase]: 39/377 cut-off events. [2024-12-01 23:16:06,526 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-12-01 23:16:06,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 377 events. 39/377 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1876 event pairs, 39 based on Foata normal form. 47/371 useless extension candidates. Maximal degree in co-relation 335. Up to 84 conditions per place. [2024-12-01 23:16:06,529 INFO L140 encePairwiseOnDemand]: 97/114 looper letters, 12 selfloop transitions, 2 changer transitions 1/95 dead transitions. [2024-12-01 23:16:06,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 95 transitions, 228 flow [2024-12-01 23:16:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:06,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2024-12-01 23:16:06,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8128654970760234 [2024-12-01 23:16:06,532 INFO L175 Difference]: Start difference. First operand has 113 places, 114 transitions, 238 flow. Second operand 3 states and 278 transitions. [2024-12-01 23:16:06,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 95 transitions, 228 flow [2024-12-01 23:16:06,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-01 23:16:06,535 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 202 flow [2024-12-01 23:16:06,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-12-01 23:16:06,536 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, -11 predicate places. [2024-12-01 23:16:06,536 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 202 flow [2024-12-01 23:16:06,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2024-12-01 23:16:06,537 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:06,537 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] [2024-12-01 23:16:06,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:16:06,537 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-12-01 23:16:06,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:06,538 INFO L85 PathProgramCache]: Analyzing trace with hash 740839354, now seen corresponding path program 1 times [2024-12-01 23:16:06,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:06,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163691903] [2024-12-01 23:16:06,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:06,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:06,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:06,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163691903] [2024-12-01 23:16:06,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163691903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:06,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:06,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:06,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805297888] [2024-12-01 23:16:06,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:06,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:06,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:06,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:06,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:06,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 114 [2024-12-01 23:16:06,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2024-12-01 23:16:06,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:06,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 114 [2024-12-01 23:16:06,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:06,682 INFO L124 PetriNetUnfolderBase]: 20/305 cut-off events. [2024-12-01 23:16:06,682 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-12-01 23:16:06,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 305 events. 20/305 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1306 event pairs, 7 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 360. Up to 30 conditions per place. [2024-12-01 23:16:06,685 INFO L140 encePairwiseOnDemand]: 106/114 looper letters, 16 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-12-01 23:16:06,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 103 transitions, 269 flow [2024-12-01 23:16:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-12-01 23:16:06,687 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8157894736842105 [2024-12-01 23:16:06,687 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 202 flow. Second operand 3 states and 279 transitions. [2024-12-01 23:16:06,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 103 transitions, 269 flow [2024-12-01 23:16:06,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 23:16:06,691 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 250 flow [2024-12-01 23:16:06,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-12-01 23:16:06,692 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, -10 predicate places. [2024-12-01 23:16:06,692 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 250 flow [2024-12-01 23:16:06,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2024-12-01 23:16:06,692 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:06,692 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] [2024-12-01 23:16:06,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:16:06,693 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-12-01 23:16:06,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:06,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1017938820, now seen corresponding path program 1 times [2024-12-01 23:16:06,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:06,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400917621] [2024-12-01 23:16:06,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:06,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:06,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400917621] [2024-12-01 23:16:06,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400917621] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:06,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228172741] [2024-12-01 23:16:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:06,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:06,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:06,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:06,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 114 [2024-12-01 23:16:06,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-12-01 23:16:06,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:06,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 114 [2024-12-01 23:16:06,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:06,857 INFO L124 PetriNetUnfolderBase]: 36/418 cut-off events. [2024-12-01 23:16:06,857 INFO L125 PetriNetUnfolderBase]: For 86/90 co-relation queries the response was YES. [2024-12-01 23:16:06,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 418 events. 36/418 cut-off events. For 86/90 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2273 event pairs, 9 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 512. Up to 66 conditions per place. [2024-12-01 23:16:06,860 INFO L140 encePairwiseOnDemand]: 106/114 looper letters, 17 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-12-01 23:16:06,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 327 flow [2024-12-01 23:16:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2024-12-01 23:16:06,863 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8216374269005848 [2024-12-01 23:16:06,863 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 250 flow. Second operand 3 states and 281 transitions. [2024-12-01 23:16:06,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 327 flow [2024-12-01 23:16:06,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 109 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 23:16:06,867 INFO L231 Difference]: Finished difference. Result has 105 places, 106 transitions, 290 flow [2024-12-01 23:16:06,867 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=105, PETRI_TRANSITIONS=106} [2024-12-01 23:16:06,868 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, -8 predicate places. [2024-12-01 23:16:06,868 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 106 transitions, 290 flow [2024-12-01 23:16:06,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-12-01 23:16:06,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:06,869 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:06,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:16:06,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-12-01 23:16:06,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:06,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1207901841, now seen corresponding path program 1 times [2024-12-01 23:16:06,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:06,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746612328] [2024-12-01 23:16:06,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:06,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:06,889 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 23:16:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:06,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 23:16:06,908 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 23:16:06,908 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-12-01 23:16:06,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-12-01 23:16:06,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-12-01 23:16:06,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-12-01 23:16:06,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-12-01 23:16:06,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-12-01 23:16:06,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-12-01 23:16:06,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-12-01 23:16:06,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-12-01 23:16:06,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-12-01 23:16:06,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-12-01 23:16:06,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:16:06,910 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-01 23:16:06,911 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-01 23:16:06,911 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-01 23:16:06,939 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-01 23:16:06,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 147 transitions, 312 flow [2024-12-01 23:16:06,972 INFO L124 PetriNetUnfolderBase]: 11/187 cut-off events. [2024-12-01 23:16:06,972 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-01 23:16:06,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 187 events. 11/187 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 390 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 143. Up to 8 conditions per place. [2024-12-01 23:16:06,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 147 transitions, 312 flow [2024-12-01 23:16:06,975 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 147 transitions, 312 flow [2024-12-01 23:16:06,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:16:06,977 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;@380d2ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:16:06,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-12-01 23:16:06,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 23:16:06,979 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-12-01 23:16:06,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 23:16:06,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:06,980 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:06,980 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-12-01 23:16:06,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1225293368, now seen corresponding path program 1 times [2024-12-01 23:16:06,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:06,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843817252] [2024-12-01 23:16:06,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:07,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:07,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843817252] [2024-12-01 23:16:07,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843817252] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:07,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:07,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:07,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729463561] [2024-12-01 23:16:07,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:07,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:07,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:07,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:07,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:07,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2024-12-01 23:16:07,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 147 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2024-12-01 23:16:07,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:07,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2024-12-01 23:16:07,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:07,335 INFO L124 PetriNetUnfolderBase]: 279/1558 cut-off events. [2024-12-01 23:16:07,336 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-12-01 23:16:07,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2094 conditions, 1558 events. 279/1558 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 12708 event pairs, 279 based on Foata normal form. 239/1570 useless extension candidates. Maximal degree in co-relation 1521. Up to 452 conditions per place. [2024-12-01 23:16:07,348 INFO L140 encePairwiseOnDemand]: 124/147 looper letters, 16 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2024-12-01 23:16:07,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 120 transitions, 294 flow [2024-12-01 23:16:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:07,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-12-01 23:16:07,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8027210884353742 [2024-12-01 23:16:07,351 INFO L175 Difference]: Start difference. First operand has 146 places, 147 transitions, 312 flow. Second operand 3 states and 354 transitions. [2024-12-01 23:16:07,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 120 transitions, 294 flow [2024-12-01 23:16:07,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 120 transitions, 292 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-12-01 23:16:07,354 INFO L231 Difference]: Finished difference. Result has 129 places, 119 transitions, 258 flow [2024-12-01 23:16:07,354 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=129, PETRI_TRANSITIONS=119} [2024-12-01 23:16:07,355 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -17 predicate places. [2024-12-01 23:16:07,355 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 119 transitions, 258 flow [2024-12-01 23:16:07,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2024-12-01 23:16:07,355 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:07,355 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] [2024-12-01 23:16:07,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:16:07,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-12-01 23:16:07,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:07,356 INFO L85 PathProgramCache]: Analyzing trace with hash 241191770, now seen corresponding path program 1 times [2024-12-01 23:16:07,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:07,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190910144] [2024-12-01 23:16:07,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:07,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:07,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:07,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190910144] [2024-12-01 23:16:07,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190910144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:07,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009838439] [2024-12-01 23:16:07,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:07,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:07,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:07,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:07,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:07,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2024-12-01 23:16:07,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 119 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2024-12-01 23:16:07,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:07,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2024-12-01 23:16:07,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:07,746 INFO L124 PetriNetUnfolderBase]: 289/1758 cut-off events. [2024-12-01 23:16:07,746 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-12-01 23:16:07,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2411 conditions, 1758 events. 289/1758 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 14721 event pairs, 98 based on Foata normal form. 0/1537 useless extension candidates. Maximal degree in co-relation 2384. Up to 301 conditions per place. [2024-12-01 23:16:07,763 INFO L140 encePairwiseOnDemand]: 135/147 looper letters, 24 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2024-12-01 23:16:07,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 362 flow [2024-12-01 23:16:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:07,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-12-01 23:16:07,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2024-12-01 23:16:07,765 INFO L175 Difference]: Start difference. First operand has 129 places, 119 transitions, 258 flow. Second operand 3 states and 351 transitions. [2024-12-01 23:16:07,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 362 flow [2024-12-01 23:16:07,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 133 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 23:16:07,768 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 332 flow [2024-12-01 23:16:07,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2024-12-01 23:16:07,769 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -16 predicate places. [2024-12-01 23:16:07,769 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 332 flow [2024-12-01 23:16:07,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2024-12-01 23:16:07,769 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:07,770 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] [2024-12-01 23:16:07,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 23:16:07,770 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-12-01 23:16:07,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:07,770 INFO L85 PathProgramCache]: Analyzing trace with hash -142926212, now seen corresponding path program 1 times [2024-12-01 23:16:07,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:07,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948170065] [2024-12-01 23:16:07,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:07,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:07,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:07,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948170065] [2024-12-01 23:16:07,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948170065] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:07,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:07,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:16:07,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932502569] [2024-12-01 23:16:07,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:07,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:07,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:07,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:07,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:07,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 147 [2024-12-01 23:16:07,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 128 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2024-12-01 23:16:07,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 23:16:07,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 147 [2024-12-01 23:16:07,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 23:16:08,617 INFO L124 PetriNetUnfolderBase]: 938/4557 cut-off events. [2024-12-01 23:16:08,617 INFO L125 PetriNetUnfolderBase]: For 1290/1382 co-relation queries the response was YES. [2024-12-01 23:16:08,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7694 conditions, 4557 events. 938/4557 cut-off events. For 1290/1382 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 49849 event pairs, 236 based on Foata normal form. 1/4085 useless extension candidates. Maximal degree in co-relation 7576. Up to 972 conditions per place. [2024-12-01 23:16:08,666 INFO L140 encePairwiseOnDemand]: 135/147 looper letters, 29 selfloop transitions, 9 changer transitions 0/145 dead transitions. [2024-12-01 23:16:08,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 145 transitions, 470 flow [2024-12-01 23:16:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 23:16:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2024-12-01 23:16:08,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.800453514739229 [2024-12-01 23:16:08,668 INFO L175 Difference]: Start difference. First operand has 130 places, 128 transitions, 332 flow. Second operand 3 states and 353 transitions. [2024-12-01 23:16:08,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 145 transitions, 470 flow [2024-12-01 23:16:08,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 145 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 23:16:08,679 INFO L231 Difference]: Finished difference. Result has 132 places, 137 transitions, 392 flow [2024-12-01 23:16:08,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=132, PETRI_TRANSITIONS=137} [2024-12-01 23:16:08,680 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, -14 predicate places. [2024-12-01 23:16:08,680 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 137 transitions, 392 flow [2024-12-01 23:16:08,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2024-12-01 23:16:08,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 23:16:08,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:08,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 23:16:08,681 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-12-01 23:16:08,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:08,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1511315973, now seen corresponding path program 1 times [2024-12-01 23:16:08,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:08,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762418587] [2024-12-01 23:16:08,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:08,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:08,726 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 23:16:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:08,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 23:16:08,742 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 23:16:08,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thrErr3ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2024-12-01 23:16:08,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-12-01 23:16:08,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-12-01 23:16:08,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-12-01 23:16:08,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 23:16:08,745 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-01 23:16:08,789 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-12-01 23:16:08,789 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 23:16:08,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:16:08 BasicIcfg [2024-12-01 23:16:08,797 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 23:16:08,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 23:16:08,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 23:16:08,797 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 23:16:08,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:05" (3/4) ... [2024-12-01 23:16:08,799 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-01 23:16:08,853 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-12-01 23:16:08,906 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 23:16:08,907 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 23:16:08,907 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 23:16:08,908 INFO L158 Benchmark]: Toolchain (without parser) took 4460.40ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 91.4MB in the beginning and 61.2MB in the end (delta: 30.2MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2024-12-01 23:16:08,908 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:16:08,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.55ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 71.5MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 23:16:08,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.90ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 23:16:08,909 INFO L158 Benchmark]: Boogie Preprocessor took 22.94ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 68.9MB in the end (delta: 950.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:16:08,909 INFO L158 Benchmark]: RCFGBuilder took 393.91ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 54.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 23:16:08,909 INFO L158 Benchmark]: TraceAbstraction took 3433.32ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 53.5MB in the beginning and 71.9MB in the end (delta: -18.4MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-12-01 23:16:08,909 INFO L158 Benchmark]: Witness Printer took 109.38ms. Allocated memory is still 159.4MB. Free memory was 71.9MB in the beginning and 61.2MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 23:16:08,911 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.55ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 71.5MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.90ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.94ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 68.9MB in the end (delta: 950.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 393.91ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 54.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3433.32ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 53.5MB in the beginning and 71.9MB in the end (delta: -18.4MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Witness Printer took 109.38ms. Allocated memory is still 159.4MB. Free memory was 71.9MB in the beginning and 61.2MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 711]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int s; VAL [s=0] [L698] 0 volatile int t; VAL [s=0, t=0] [L716] 0 pthread_t t; VAL [s=0, t=0] [L717] 0 int i, n; VAL [s=0, t=0] [L718] 0 s = 0 VAL [s=0, t=0] [L719] 0 n = __VERIFIER_nondet_int() VAL [n=2, s=0, t=0] [L720] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, s=0, t=0] [L720] RET 0 assume_abort_if_not(n > 0) [L721] 0 i = 0 VAL [i=0, n=2, s=0, t=0] [L721] COND TRUE 0 i < n VAL [i=0, n=2, s=0, t=0] [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=0, n=2, s=0, t=-1, t=0] [L721] 0 i++ VAL [i=1, n=2, s=0, t=-1, t=0] [L721] COND TRUE 0 i < n VAL [i=1, n=2, s=0, t=-1, t=0] [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=1, n=2, s=0, t=0, t=0] [L710] CALL 2 inct() [L710] CALL 1 inct() [L701] 1 t++ VAL [s=0, t=1] [L710] RET 1 inct() [L711] 1 s < t VAL [\old(arg)={0:0}, arg={0:0}, s=0, t=1] [L701] 2 t++ VAL [s=0, t=2] [L711] 1 s < t VAL [\old(arg)={0:0}, arg={0:0}, s=0, t=2] Now there is a data race on ~t~0 between C: t++ [701] and C: s < t [711] - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: 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: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: 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: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: 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, 109 locations, 14 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3 mSDtfsCounter, 40 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=166occurred in iteration=0, 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, 0.2s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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 4 procedures, 140 locations, 20 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: 0.6s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 21 mSDtfsCounter, 79 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=290occurred 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, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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 3 thread instances CFG has 5 procedures, 171 locations, 26 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: 1.8s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 13 mSDtfsCounter, 112 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=392occurred 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, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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! [2024-12-01 23:16:08,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c2deb7-4e0c-4f8d-a58b-14914c2a7ab2/bin/uautomizer-verify-84ZbGMXZE1/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)