./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:29:00,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:29:00,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:29:00,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:29:00,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:29:00,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:29:00,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:29:00,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:29:00,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:29:00,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:29:00,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:29:00,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:29:00,355 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:29:00,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:29:00,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:29:00,355 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:29:00,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:29:00,356 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:29:00,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:29:00,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:29:00,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:29:00,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:29:00,357 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2025-01-09 21:29:00,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:29:00,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:29:00,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:29:00,571 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:29:00,579 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:29:00,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-01-09 21:29:01,782 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/840752302/ef2e9475c3b34c388866615ad276ce38/FLAG9d02734e7 [2025-01-09 21:29:02,250 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:29:02,251 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-01-09 21:29:02,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/840752302/ef2e9475c3b34c388866615ad276ce38/FLAG9d02734e7 [2025-01-09 21:29:02,396 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/840752302/ef2e9475c3b34c388866615ad276ce38 [2025-01-09 21:29:02,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:29:02,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:29:02,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:29:02,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:29:02,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:29:02,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:02,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b08c31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02, skipping insertion in model container [2025-01-09 21:29:02,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:02,446 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:29:02,748 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,748 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,751 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,751 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:29:02,819 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:29:02,862 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,863 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,863 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,864 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-09 21:29:02,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:29:02,924 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:29:02,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02 WrapperNode [2025-01-09 21:29:02,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:29:02,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:29:02,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:29:02,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:29:02,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:02,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:02,996 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 526 [2025-01-09 21:29:02,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:29:03,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:29:03,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:29:03,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:29:03,008 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,046 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:29:03,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:29:03,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:29:03,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:29:03,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (1/1) ... [2025-01-09 21:29:03,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:29:03,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:29:03,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:29:03,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:29:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:29:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-01-09 21:29:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-01-09 21:29:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-01-09 21:29:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:29:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-01-09 21:29:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:29:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:29:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-01-09 21:29:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-01-09 21:29:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:29:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:29:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 21:29:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:29:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-01-09 21:29:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:29:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:29:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:29:03,128 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:29:03,255 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:29:03,256 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:29:03,901 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:29:03,901 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:29:03,926 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:29:03,926 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2025-01-09 21:29:03,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:29:03 BoogieIcfgContainer [2025-01-09 21:29:03,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:29:03,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:29:03,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:29:03,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:29:03,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:29:02" (1/3) ... [2025-01-09 21:29:03,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e07c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:29:03, skipping insertion in model container [2025-01-09 21:29:03,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:29:02" (2/3) ... [2025-01-09 21:29:03,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e07c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:29:03, skipping insertion in model container [2025-01-09 21:29:03,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:29:03" (3/3) ... [2025-01-09 21:29:03,932 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-01-09 21:29:03,941 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:29:03,943 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 546 locations, 1 initial locations, 20 loop locations, and 28 error locations. [2025-01-09 21:29:03,943 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:29:04,068 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-09 21:29:04,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 552 places, 585 transitions, 1190 flow [2025-01-09 21:29:04,284 INFO L124 PetriNetUnfolderBase]: 58/892 cut-off events. [2025-01-09 21:29:04,285 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-09 21:29:04,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 892 events. 58/892 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4229 event pairs, 0 based on Foata normal form. 0/783 useless extension candidates. Maximal degree in co-relation 498. Up to 8 conditions per place. [2025-01-09 21:29:04,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 552 places, 585 transitions, 1190 flow [2025-01-09 21:29:04,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 552 places, 585 transitions, 1190 flow [2025-01-09 21:29:04,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:29:04,314 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;@399659ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:29:04,315 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2025-01-09 21:29:04,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:29:04,327 INFO L124 PetriNetUnfolderBase]: 0/121 cut-off events. [2025-01-09 21:29:04,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:29:04,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:29:04,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:29:04,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-01-09 21:29:04,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:29:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash 426517698, now seen corresponding path program 1 times [2025-01-09 21:29:04,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:29:04,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004937050] [2025-01-09 21:29:04,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:29:04,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:29:04,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-09 21:29:04,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-09 21:29:04,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:29:04,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:29:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:29:05,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:29:05,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004937050] [2025-01-09 21:29:05,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004937050] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:29:05,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:29:05,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:29:05,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914755795] [2025-01-09 21:29:05,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:29:05,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:29:05,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:29:05,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:29:05,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:29:05,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 585 [2025-01-09 21:29:05,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 585 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 418.3333333333333) internal successors, (2510), 6 states have internal predecessors, (2510), 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) [2025-01-09 21:29:05,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:29:05,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 585 [2025-01-09 21:29:05,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:29:17,138 INFO L124 PetriNetUnfolderBase]: 39310/100224 cut-off events. [2025-01-09 21:29:17,139 INFO L125 PetriNetUnfolderBase]: For 951/1140 co-relation queries the response was YES. [2025-01-09 21:29:17,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158367 conditions, 100224 events. 39310/100224 cut-off events. For 951/1140 co-relation queries the response was YES. Maximal size of possible extension queue 2045. Compared 1249743 event pairs, 34452 based on Foata normal form. 11002/102545 useless extension candidates. Maximal degree in co-relation 154171. Up to 57748 conditions per place. [2025-01-09 21:29:17,736 INFO L140 encePairwiseOnDemand]: 547/585 looper letters, 128 selfloop transitions, 10 changer transitions 0/553 dead transitions. [2025-01-09 21:29:17,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 553 transitions, 1402 flow [2025-01-09 21:29:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:29:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:29:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2668 transitions. [2025-01-09 21:29:17,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7601139601139602 [2025-01-09 21:29:17,762 INFO L175 Difference]: Start difference. First operand has 552 places, 585 transitions, 1190 flow. Second operand 6 states and 2668 transitions. [2025-01-09 21:29:17,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 553 transitions, 1402 flow [2025-01-09 21:29:17,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 553 transitions, 1402 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:29:17,787 INFO L231 Difference]: Finished difference. Result has 551 places, 553 transitions, 1146 flow [2025-01-09 21:29:17,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1146, PETRI_PLACES=551, PETRI_TRANSITIONS=553} [2025-01-09 21:29:17,796 INFO L279 CegarLoopForPetriNet]: 552 programPoint places, -1 predicate places. [2025-01-09 21:29:17,797 INFO L471 AbstractCegarLoop]: Abstraction has has 551 places, 553 transitions, 1146 flow [2025-01-09 21:29:17,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 418.3333333333333) internal successors, (2510), 6 states have internal predecessors, (2510), 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) [2025-01-09 21:29:17,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:29:17,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:29:17,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:29:17,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-01-09 21:29:17,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:29:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash -502541822, now seen corresponding path program 1 times [2025-01-09 21:29:17,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:29:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262525595] [2025-01-09 21:29:17,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:29:17,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:29:17,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 21:29:18,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 21:29:18,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:29:18,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:29:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:29:18,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:29:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262525595] [2025-01-09 21:29:18,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262525595] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:29:18,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:29:18,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:29:18,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771438697] [2025-01-09 21:29:18,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:29:18,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:29:18,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:29:18,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:29:18,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:29:18,136 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 529 out of 585 [2025-01-09 21:29:18,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 553 transitions, 1146 flow. Second operand has 3 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 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) [2025-01-09 21:29:18,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:29:18,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 529 of 585 [2025-01-09 21:29:18,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:29:18,849 INFO L124 PetriNetUnfolderBase]: 390/4229 cut-off events. [2025-01-09 21:29:18,849 INFO L125 PetriNetUnfolderBase]: For 185/186 co-relation queries the response was YES. [2025-01-09 21:29:18,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4901 conditions, 4229 events. 390/4229 cut-off events. For 185/186 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 38586 event pairs, 264 based on Foata normal form. 1/3839 useless extension candidates. Maximal degree in co-relation 4576. Up to 567 conditions per place. [2025-01-09 21:29:18,891 INFO L140 encePairwiseOnDemand]: 582/585 looper letters, 27 selfloop transitions, 2 changer transitions 0/554 dead transitions. [2025-01-09 21:29:18,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 554 transitions, 1206 flow [2025-01-09 21:29:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:29:18,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:29:18,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1617 transitions. [2025-01-09 21:29:18,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9213675213675213 [2025-01-09 21:29:18,899 INFO L175 Difference]: Start difference. First operand has 551 places, 553 transitions, 1146 flow. Second operand 3 states and 1617 transitions. [2025-01-09 21:29:18,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 554 transitions, 1206 flow [2025-01-09 21:29:18,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 554 transitions, 1186 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-09 21:29:18,911 INFO L231 Difference]: Finished difference. Result has 549 places, 554 transitions, 1138 flow [2025-01-09 21:29:18,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1138, PETRI_PLACES=549, PETRI_TRANSITIONS=554} [2025-01-09 21:29:18,913 INFO L279 CegarLoopForPetriNet]: 552 programPoint places, -3 predicate places. [2025-01-09 21:29:18,913 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 554 transitions, 1138 flow [2025-01-09 21:29:18,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 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) [2025-01-09 21:29:18,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:29:18,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:29:18,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:29:18,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-01-09 21:29:18,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:29:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash 338969713, now seen corresponding path program 1 times [2025-01-09 21:29:18,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:29:18,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731254006] [2025-01-09 21:29:18,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:29:18,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:29:18,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-09 21:29:18,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-09 21:29:18,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:29:18,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:29:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:29:19,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:29:19,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731254006] [2025-01-09 21:29:19,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731254006] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:29:19,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:29:19,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:29:19,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048535178] [2025-01-09 21:29:19,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:29:19,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:29:19,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:29:19,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:29:19,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:29:19,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 585 [2025-01-09 21:29:19,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 554 transitions, 1138 flow. Second operand has 6 states, 6 states have (on average 418.3333333333333) internal successors, (2510), 6 states have internal predecessors, (2510), 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) [2025-01-09 21:29:19,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:29:19,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 585 [2025-01-09 21:29:19,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:29:31,397 INFO L124 PetriNetUnfolderBase]: 39311/100346 cut-off events. [2025-01-09 21:29:31,397 INFO L125 PetriNetUnfolderBase]: For 1053/1242 co-relation queries the response was YES. [2025-01-09 21:29:31,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158540 conditions, 100346 events. 39311/100346 cut-off events. For 1053/1242 co-relation queries the response was YES. Maximal size of possible extension queue 2045. Compared 1250924 event pairs, 34452 based on Foata normal form. 0/91661 useless extension candidates. Maximal degree in co-relation 158273. Up to 57782 conditions per place. [2025-01-09 21:29:31,948 INFO L140 encePairwiseOnDemand]: 573/585 looper letters, 128 selfloop transitions, 10 changer transitions 0/552 dead transitions. [2025-01-09 21:29:31,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 552 transitions, 1410 flow [2025-01-09 21:29:31,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:29:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:29:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2642 transitions. [2025-01-09 21:29:31,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7527065527065527 [2025-01-09 21:29:31,953 INFO L175 Difference]: Start difference. First operand has 549 places, 554 transitions, 1138 flow. Second operand 6 states and 2642 transitions. [2025-01-09 21:29:31,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 552 transitions, 1410 flow [2025-01-09 21:29:31,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 552 transitions, 1408 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:29:31,961 INFO L231 Difference]: Finished difference. Result has 551 places, 552 transitions, 1152 flow [2025-01-09 21:29:31,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1152, PETRI_PLACES=551, PETRI_TRANSITIONS=552} [2025-01-09 21:29:31,962 INFO L279 CegarLoopForPetriNet]: 552 programPoint places, -1 predicate places. [2025-01-09 21:29:31,962 INFO L471 AbstractCegarLoop]: Abstraction has has 551 places, 552 transitions, 1152 flow [2025-01-09 21:29:31,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 418.3333333333333) internal successors, (2510), 6 states have internal predecessors, (2510), 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) [2025-01-09 21:29:31,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:29:31,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:29:31,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:29:31,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-01-09 21:29:31,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:29:31,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1041035292, now seen corresponding path program 1 times [2025-01-09 21:29:31,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:29:31,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796902122] [2025-01-09 21:29:31,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:29:31,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:29:31,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-01-09 21:29:31,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-01-09 21:29:31,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:29:31,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:29:32,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:29:32,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:29:32,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796902122] [2025-01-09 21:29:32,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796902122] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:29:32,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:29:32,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:29:32,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244917382] [2025-01-09 21:29:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:29:32,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:29:32,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:29:32,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:29:32,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:29:32,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 585 [2025-01-09 21:29:32,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 552 transitions, 1152 flow. Second operand has 6 states, 6 states have (on average 418.6666666666667) internal successors, (2512), 6 states have internal predecessors, (2512), 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) [2025-01-09 21:29:32,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:29:32,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 585 [2025-01-09 21:29:32,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand