./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc 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/pthread-ext/04_incdec_cas.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 a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 08:58:03,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 08:58:03,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 08:58:03,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 08:58:03,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 08:58:03,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 08:58:03,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 08:58:03,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 08:58:03,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 08:58:03,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 08:58:03,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 08:58:03,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 08:58:03,301 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 08:58:03,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 08:58:03,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 08:58:03,303 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:03,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 08:58:03,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 08:58:03,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 08:58:03,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 08:58:03,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 08:58:03,304 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 -> a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 [2025-02-06 08:58:03,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 08:58:03,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 08:58:03,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 08:58:03,504 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 08:58:03,504 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 08:58:03,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-06 08:58:04,725 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c94adc2b/50b7246e61b942edac19c0ef581e96dc/FLAG85dd6b354 [2025-02-06 08:58:05,206 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 08:58:05,208 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-06 08:58:05,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c94adc2b/50b7246e61b942edac19c0ef581e96dc/FLAG85dd6b354 [2025-02-06 08:58:05,368 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c94adc2b/50b7246e61b942edac19c0ef581e96dc [2025-02-06 08:58:05,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 08:58:05,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 08:58:05,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:05,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 08:58:05,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 08:58:05,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b66a05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05, skipping insertion in model container [2025-02-06 08:58:05,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 08:58:05,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:05,603 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 08:58:05,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:05,670 INFO L204 MainTranslator]: Completed translation [2025-02-06 08:58:05,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05 WrapperNode [2025-02-06 08:58:05,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:05,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:05,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 08:58:05,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 08:58:05,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,718 INFO L138 Inliner]: procedures = 174, calls = 46, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 265 [2025-02-06 08:58:05,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:05,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 08:58:05,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 08:58:05,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 08:58:05,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,750 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 08:58:05,762 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 08:58:05,762 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 08:58:05,762 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 08:58:05,763 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (1/1) ... [2025-02-06 08:58:05,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:05,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:58:05,798 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) [2025-02-06 08:58:05,805 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 [2025-02-06 08:58:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 08:58:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 08:58:05,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 08:58:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 08:58:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 08:58:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 08:58:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 08:58:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 08:58:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 08:58:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 08:58:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 08:58:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 08:58:05,823 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 08:58:05,935 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 08:58:05,937 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 08:58:06,273 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-06 08:58:06,274 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L731-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2025-02-06 08:58:06,274 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L711: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-06 08:58:06,274 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L711-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2025-02-06 08:58:06,292 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 08:58:06,293 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 08:58:06,541 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 08:58:06,541 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 08:58:06,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:06 BoogieIcfgContainer [2025-02-06 08:58:06,542 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 08:58:06,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 08:58:06,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 08:58:06,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 08:58:06,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:58:05" (1/3) ... [2025-02-06 08:58:06,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1ccd81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:06, skipping insertion in model container [2025-02-06 08:58:06,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:05" (2/3) ... [2025-02-06 08:58:06,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1ccd81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:06, skipping insertion in model container [2025-02-06 08:58:06,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:06" (3/3) ... [2025-02-06 08:58:06,548 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2025-02-06 08:58:06,558 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 08:58:06,560 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas.i that has 2 procedures, 113 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2025-02-06 08:58:06,560 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 08:58:06,637 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:06,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 121 transitions, 246 flow [2025-02-06 08:58:06,701 INFO L124 PetriNetUnfolderBase]: 8/128 cut-off events. [2025-02-06 08:58:06,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:06,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 128 events. 8/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 345 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2025-02-06 08:58:06,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 121 transitions, 246 flow [2025-02-06 08:58:06,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 121 transitions, 246 flow [2025-02-06 08:58:06,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:06,726 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;@5bfc7bbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:06,726 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-02-06 08:58:06,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:06,733 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-02-06 08:58:06,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:06,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:06,733 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-02-06 08:58:06,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2025-02-06 08:58:06,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:06,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1515551399, now seen corresponding path program 1 times [2025-02-06 08:58:06,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:06,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242628456] [2025-02-06 08:58:06,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:06,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:06,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 08:58:06,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 08:58:06,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:06,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:06,822 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:06,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 08:58:06,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 08:58:06,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:06,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:06,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:06,855 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:06,855 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2025-02-06 08:58:06,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2025-02-06 08:58:06,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2025-02-06 08:58:06,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2025-02-06 08:58:06,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2025-02-06 08:58:06,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2025-02-06 08:58:06,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2025-02-06 08:58:06,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2025-02-06 08:58:06,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2025-02-06 08:58:06,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2025-02-06 08:58:06,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2025-02-06 08:58:06,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2025-02-06 08:58:06,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2025-02-06 08:58:06,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2025-02-06 08:58:06,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2025-02-06 08:58:06,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2025-02-06 08:58:06,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2025-02-06 08:58:06,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2025-02-06 08:58:06,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2025-02-06 08:58:06,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2025-02-06 08:58:06,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2025-02-06 08:58:06,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2025-02-06 08:58:06,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2025-02-06 08:58:06,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 08:58:06,862 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 08:58:06,864 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:06,864 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 08:58:07,031 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:07,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 214 transitions, 438 flow [2025-02-06 08:58:07,101 INFO L124 PetriNetUnfolderBase]: 16/230 cut-off events. [2025-02-06 08:58:07,102 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:58:07,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 230 events. 16/230 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 933 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 193. Up to 3 conditions per place. [2025-02-06 08:58:07,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 214 transitions, 438 flow [2025-02-06 08:58:07,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 214 transitions, 438 flow [2025-02-06 08:58:07,110 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:07,111 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;@5bfc7bbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:07,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-02-06 08:58:07,120 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:07,123 INFO L124 PetriNetUnfolderBase]: 0/66 cut-off events. [2025-02-06 08:58:07,123 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:58:07,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:07,123 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:07,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-02-06 08:58:07,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1690282195, now seen corresponding path program 1 times [2025-02-06 08:58:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:07,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961134778] [2025-02-06 08:58:07,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:07,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 08:58:07,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 08:58:07,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:07,158 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:07,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 08:58:07,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 08:58:07,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:07,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:07,186 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2025-02-06 08:58:07,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2025-02-06 08:58:07,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2025-02-06 08:58:07,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2025-02-06 08:58:07,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2025-02-06 08:58:07,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2025-02-06 08:58:07,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2025-02-06 08:58:07,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2025-02-06 08:58:07,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 08:58:07,191 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 08:58:07,191 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:07,191 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 08:58:07,375 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:07,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 307 transitions, 632 flow [2025-02-06 08:58:07,521 INFO L124 PetriNetUnfolderBase]: 24/332 cut-off events. [2025-02-06 08:58:07,521 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 08:58:07,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 332 events. 24/332 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1584 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 285. Up to 4 conditions per place. [2025-02-06 08:58:07,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 307 transitions, 632 flow [2025-02-06 08:58:07,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 290 places, 307 transitions, 632 flow [2025-02-06 08:58:07,560 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:07,560 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;@5bfc7bbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:07,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2025-02-06 08:58:07,579 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:07,579 INFO L124 PetriNetUnfolderBase]: 0/74 cut-off events. [2025-02-06 08:58:07,579 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 08:58:07,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:07,579 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] [2025-02-06 08:58:07,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2025-02-06 08:58:07,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2064631821, now seen corresponding path program 1 times [2025-02-06 08:58:07,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:07,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245538559] [2025-02-06 08:58:07,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:07,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:07,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 08:58:07,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 08:58:07,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:07,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:07,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:07,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245538559] [2025-02-06 08:58:07,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245538559] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:07,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:07,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608316123] [2025-02-06 08:58:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:07,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:07,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:07,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:07,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:07,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 307 [2025-02-06 08:58:07,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 307 transitions, 632 flow. Second operand has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 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) [2025-02-06 08:58:07,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:07,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 307 [2025-02-06 08:58:07,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:09,217 INFO L124 PetriNetUnfolderBase]: 1077/5365 cut-off events. [2025-02-06 08:58:09,218 INFO L125 PetriNetUnfolderBase]: For 463/463 co-relation queries the response was YES. [2025-02-06 08:58:09,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6780 conditions, 5365 events. 1077/5365 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 57304 event pairs, 630 based on Foata normal form. 708/5478 useless extension candidates. Maximal degree in co-relation 846. Up to 1192 conditions per place. [2025-02-06 08:58:09,315 INFO L140 encePairwiseOnDemand]: 252/307 looper letters, 24 selfloop transitions, 0 changer transitions 0/249 dead transitions. [2025-02-06 08:58:09,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 249 transitions, 564 flow [2025-02-06 08:58:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:09,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 535 transitions. [2025-02-06 08:58:09,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8713355048859935 [2025-02-06 08:58:09,333 INFO L175 Difference]: Start difference. First operand has 290 places, 307 transitions, 632 flow. Second operand 2 states and 535 transitions. [2025-02-06 08:58:09,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 249 transitions, 564 flow [2025-02-06 08:58:09,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 249 transitions, 562 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:09,345 INFO L231 Difference]: Finished difference. Result has 239 places, 249 transitions, 514 flow [2025-02-06 08:58:09,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=514, PETRI_PLACES=239, PETRI_TRANSITIONS=249} [2025-02-06 08:58:09,349 INFO L279 CegarLoopForPetriNet]: 290 programPoint places, -51 predicate places. [2025-02-06 08:58:09,350 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 249 transitions, 514 flow [2025-02-06 08:58:09,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 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) [2025-02-06 08:58:09,350 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:09,351 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:09,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 08:58:09,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2025-02-06 08:58:09,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:09,352 INFO L85 PathProgramCache]: Analyzing trace with hash 901319672, now seen corresponding path program 1 times [2025-02-06 08:58:09,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:09,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233904383] [2025-02-06 08:58:09,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:09,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:09,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 08:58:09,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 08:58:09,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:09,374 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:09,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 08:58:09,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 08:58:09,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:09,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:09,404 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:09,404 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2025-02-06 08:58:09,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2025-02-06 08:58:09,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2025-02-06 08:58:09,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2025-02-06 08:58:09,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2025-02-06 08:58:09,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2025-02-06 08:58:09,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2025-02-06 08:58:09,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2025-02-06 08:58:09,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2025-02-06 08:58:09,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2025-02-06 08:58:09,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2025-02-06 08:58:09,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 08:58:09,412 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 08:58:09,412 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:09,412 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 08:58:09,566 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:09,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 377 places, 400 transitions, 828 flow [2025-02-06 08:58:09,747 INFO L124 PetriNetUnfolderBase]: 32/434 cut-off events. [2025-02-06 08:58:09,748 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 08:58:09,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 434 events. 32/434 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2264 event pairs, 0 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 377. Up to 5 conditions per place. [2025-02-06 08:58:09,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 377 places, 400 transitions, 828 flow [2025-02-06 08:58:09,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 377 places, 400 transitions, 828 flow [2025-02-06 08:58:09,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:09,768 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;@5bfc7bbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:09,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2025-02-06 08:58:09,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:09,776 INFO L124 PetriNetUnfolderBase]: 0/74 cut-off events. [2025-02-06 08:58:09,776 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 08:58:09,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:09,777 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] [2025-02-06 08:58:09,777 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2025-02-06 08:58:09,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:09,777 INFO L85 PathProgramCache]: Analyzing trace with hash 502077443, now seen corresponding path program 1 times [2025-02-06 08:58:09,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:09,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062816964] [2025-02-06 08:58:09,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:09,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:09,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 08:58:09,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 08:58:09,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:09,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:09,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:09,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062816964] [2025-02-06 08:58:09,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062816964] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:09,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:09,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:09,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414352606] [2025-02-06 08:58:09,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:09,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:09,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:09,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:09,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:09,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 400 [2025-02-06 08:58:09,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 400 transitions, 828 flow. Second operand has 2 states, 2 states have (on average 296.0) internal successors, (592), 2 states have internal predecessors, (592), 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) [2025-02-06 08:58:09,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:09,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 400 [2025-02-06 08:58:09,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:16,528 INFO L124 PetriNetUnfolderBase]: 10338/40302 cut-off events. [2025-02-06 08:58:16,529 INFO L125 PetriNetUnfolderBase]: For 5804/5804 co-relation queries the response was YES. [2025-02-06 08:58:16,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53380 conditions, 40302 events. 10338/40302 cut-off events. For 5804/5804 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 568846 event pairs, 6804 based on Foata normal form. 5755/41479 useless extension candidates. Maximal degree in co-relation 6816. Up to 11139 conditions per place. [2025-02-06 08:58:17,075 INFO L140 encePairwiseOnDemand]: 327/400 looper letters, 32 selfloop transitions, 0 changer transitions 0/324 dead transitions. [2025-02-06 08:58:17,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 324 transitions, 740 flow [2025-02-06 08:58:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 695 transitions. [2025-02-06 08:58:17,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.86875 [2025-02-06 08:58:17,082 INFO L175 Difference]: Start difference. First operand has 377 places, 400 transitions, 828 flow. Second operand 2 states and 695 transitions. [2025-02-06 08:58:17,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 324 transitions, 740 flow [2025-02-06 08:58:17,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 324 transitions, 734 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:17,097 INFO L231 Difference]: Finished difference. Result has 310 places, 324 transitions, 670 flow [2025-02-06 08:58:17,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=670, PETRI_PLACES=310, PETRI_TRANSITIONS=324} [2025-02-06 08:58:17,098 INFO L279 CegarLoopForPetriNet]: 377 programPoint places, -67 predicate places. [2025-02-06 08:58:17,098 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 324 transitions, 670 flow [2025-02-06 08:58:17,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 296.0) internal successors, (592), 2 states have internal predecessors, (592), 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) [2025-02-06 08:58:17,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:17,098 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] [2025-02-06 08:58:17,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 08:58:17,099 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2025-02-06 08:58:17,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash -168704880, now seen corresponding path program 1 times [2025-02-06 08:58:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:17,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96557763] [2025-02-06 08:58:17,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:17,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 08:58:17,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 08:58:17,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:17,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:17,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:17,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96557763] [2025-02-06 08:58:17,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96557763] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:17,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:17,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:58:17,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982916590] [2025-02-06 08:58:17,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:17,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:58:17,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:17,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:58:17,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:58:17,752 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 400 [2025-02-06 08:58:17,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 324 transitions, 670 flow. Second operand has 6 states, 6 states have (on average 285.6666666666667) internal successors, (1714), 6 states have internal predecessors, (1714), 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) [2025-02-06 08:58:17,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:17,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 400 [2025-02-06 08:58:17,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:38,365 INFO L124 PetriNetUnfolderBase]: 35345/109530 cut-off events. [2025-02-06 08:58:38,365 INFO L125 PetriNetUnfolderBase]: For 6982/6982 co-relation queries the response was YES. [2025-02-06 08:58:39,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154888 conditions, 109530 events. 35345/109530 cut-off events. For 6982/6982 co-relation queries the response was YES. Maximal size of possible extension queue 3969. Compared 1647697 event pairs, 14537 based on Foata normal form. 0/95671 useless extension candidates. Maximal degree in co-relation 154881. Up to 33178 conditions per place. [2025-02-06 08:58:39,975 INFO L140 encePairwiseOnDemand]: 381/400 looper letters, 104 selfloop transitions, 45 changer transitions 0/430 dead transitions. [2025-02-06 08:58:39,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 430 transitions, 1240 flow [2025-02-06 08:58:39,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:58:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:58:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1854 transitions. [2025-02-06 08:58:39,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7725 [2025-02-06 08:58:39,982 INFO L175 Difference]: Start difference. First operand has 310 places, 324 transitions, 670 flow. Second operand 6 states and 1854 transitions. [2025-02-06 08:58:39,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 430 transitions, 1240 flow [2025-02-06 08:58:39,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 430 transitions, 1240 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:40,006 INFO L231 Difference]: Finished difference. Result has 320 places, 368 transitions, 974 flow [2025-02-06 08:58:40,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=974, PETRI_PLACES=320, PETRI_TRANSITIONS=368} [2025-02-06 08:58:40,015 INFO L279 CegarLoopForPetriNet]: 377 programPoint places, -57 predicate places. [2025-02-06 08:58:40,015 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 368 transitions, 974 flow [2025-02-06 08:58:40,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 285.6666666666667) internal successors, (1714), 6 states have internal predecessors, (1714), 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) [2025-02-06 08:58:40,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:40,016 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] [2025-02-06 08:58:40,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 08:58:40,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2025-02-06 08:58:40,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:40,016 INFO L85 PathProgramCache]: Analyzing trace with hash 521702805, now seen corresponding path program 1 times [2025-02-06 08:58:40,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:40,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344162801] [2025-02-06 08:58:40,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:40,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:40,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 08:58:40,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 08:58:40,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:40,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:40,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:40,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344162801] [2025-02-06 08:58:40,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344162801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:40,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:40,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 08:58:40,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028976712] [2025-02-06 08:58:40,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:40,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 08:58:40,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:40,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 08:58:40,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 08:58:40,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 400 [2025-02-06 08:58:40,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 368 transitions, 974 flow. Second operand has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 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) [2025-02-06 08:58:40,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:40,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 400 [2025-02-06 08:58:40,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand