./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:41:24,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:41:24,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:41:24,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:41:24,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:41:24,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:41:24,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:41:24,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:41:24,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:41:24,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:41:24,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:41:24,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:41:24,304 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:41:24,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:41:24,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:41:24,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:41:24,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:41:24,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:41:24,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:41:24,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:41:24,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:41:24,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:41:24,308 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:41:24,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:41:24,309 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:41:24,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:41:24,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:41:24,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:41:24,309 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:41:24,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:41:24,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:41:24,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:24,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:41:24,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:41:24,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:41:24,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:41:24,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:41:24,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:41:24,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:41:24,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:41:24,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:41:24,314 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2024-11-16 23:41:24,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:41:24,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:41:24,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:41:24,513 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:41:24,513 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:41:24,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-16 23:41:25,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:41:25,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:41:25,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-16 23:41:25,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ef7062a/3f7f646c2a444734bcb850fa6403884c/FLAG1479c096c [2024-11-16 23:41:26,310 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ef7062a/3f7f646c2a444734bcb850fa6403884c [2024-11-16 23:41:26,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:41:26,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:41:26,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:26,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:41:26,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:41:26,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f53a0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26, skipping insertion in model container [2024-11-16 23:41:26,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:41:26,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:26,734 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:41:26,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:26,824 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:41:26,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26 WrapperNode [2024-11-16 23:41:26,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:26,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:26,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:41:26,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:41:26,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,877 INFO L138 Inliner]: procedures = 279, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 374 [2024-11-16 23:41:26,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:26,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:41:26,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:41:26,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:41:26,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,918 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:41:26,939 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:41:26,939 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:41:26,939 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:41:26,940 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (1/1) ... [2024-11-16 23:41:26,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:26,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:26,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:41:26,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:41:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:41:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:41:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-16 23:41:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-16 23:41:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:41:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:41:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:41:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-16 23:41:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-16 23:41:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:41:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:41:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:41:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:41:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:41:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:41:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:41:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:41:27,014 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:41:27,142 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:41:27,144 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:41:27,584 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1043: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-16 23:41:27,585 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1043-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-16 23:41:27,585 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1042: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-16 23:41:27,585 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1042-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-16 23:41:27,587 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:41:27,587 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:41:27,625 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:41:27,629 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:41:27,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:27 BoogieIcfgContainer [2024-11-16 23:41:27,630 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:41:27,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:41:27,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:41:27,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:41:27,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:41:26" (1/3) ... [2024-11-16 23:41:27,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f23df4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:27, skipping insertion in model container [2024-11-16 23:41:27,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:26" (2/3) ... [2024-11-16 23:41:27,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f23df4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:27, skipping insertion in model container [2024-11-16 23:41:27,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:27" (3/3) ... [2024-11-16 23:41:27,637 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-11-16 23:41:27,650 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:41:27,650 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-16 23:41:27,650 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:41:27,762 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 23:41:27,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 419 transitions, 858 flow [2024-11-16 23:41:28,041 INFO L124 PetriNetUnfolderBase]: 54/752 cut-off events. [2024-11-16 23:41:28,041 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-16 23:41:28,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 752 events. 54/752 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3203 event pairs, 0 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 396. Up to 8 conditions per place. [2024-11-16 23:41:28,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 400 places, 419 transitions, 858 flow [2024-11-16 23:41:28,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 400 places, 419 transitions, 858 flow [2024-11-16 23:41:28,077 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:41:28,083 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;@5caa727b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:41:28,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-16 23:41:28,091 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:41:28,092 INFO L124 PetriNetUnfolderBase]: 0/85 cut-off events. [2024-11-16 23:41:28,092 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:41:28,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:28,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:28,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:28,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1588536876, now seen corresponding path program 1 times [2024-11-16 23:41:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062939007] [2024-11-16 23:41:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:28,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:28,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:28,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:28,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062939007] [2024-11-16 23:41:28,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062939007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:28,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:28,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:28,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004606677] [2024-11-16 23:41:28,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:28,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:28,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:28,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:28,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:28,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 419 [2024-11-16 23:41:28,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 419 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 376.3333333333333) internal successors, (1129), 3 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:28,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:28,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 419 [2024-11-16 23:41:28,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:28,940 INFO L124 PetriNetUnfolderBase]: 184/2473 cut-off events. [2024-11-16 23:41:28,940 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-11-16 23:41:28,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2807 conditions, 2473 events. 184/2473 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 18399 event pairs, 132 based on Foata normal form. 312/2552 useless extension candidates. Maximal degree in co-relation 1886. Up to 283 conditions per place. [2024-11-16 23:41:28,961 INFO L140 encePairwiseOnDemand]: 399/419 looper letters, 23 selfloop transitions, 2 changer transitions 0/399 dead transitions. [2024-11-16 23:41:28,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 399 transitions, 868 flow [2024-11-16 23:41:28,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:28,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2024-11-16 23:41:28,977 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9291964996022275 [2024-11-16 23:41:28,979 INFO L175 Difference]: Start difference. First operand has 400 places, 419 transitions, 858 flow. Second operand 3 states and 1168 transitions. [2024-11-16 23:41:28,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 399 transitions, 868 flow [2024-11-16 23:41:28,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 399 transitions, 868 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:28,995 INFO L231 Difference]: Finished difference. Result has 399 places, 399 transitions, 822 flow [2024-11-16 23:41:28,999 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=822, PETRI_PLACES=399, PETRI_TRANSITIONS=399} [2024-11-16 23:41:29,002 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, -1 predicate places. [2024-11-16 23:41:29,002 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 399 transitions, 822 flow [2024-11-16 23:41:29,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 376.3333333333333) internal successors, (1129), 3 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:29,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:29,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:29,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:41:29,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:29,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2018814850, now seen corresponding path program 1 times [2024-11-16 23:41:29,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:29,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116205839] [2024-11-16 23:41:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:29,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:29,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:29,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116205839] [2024-11-16 23:41:29,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116205839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:29,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:29,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:29,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482555225] [2024-11-16 23:41:29,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:29,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:29,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:29,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:29,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:29,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 419 [2024-11-16 23:41:29,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 399 transitions, 822 flow. Second operand has 3 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:29,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:29,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 419 [2024-11-16 23:41:29,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:29,440 INFO L124 PetriNetUnfolderBase]: 104/1911 cut-off events. [2024-11-16 23:41:29,440 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-16 23:41:29,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 1911 events. 104/1911 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11729 event pairs, 72 based on Foata normal form. 0/1735 useless extension candidates. Maximal degree in co-relation 2063. Up to 185 conditions per place. [2024-11-16 23:41:29,453 INFO L140 encePairwiseOnDemand]: 415/419 looper letters, 22 selfloop transitions, 1 changer transitions 0/396 dead transitions. [2024-11-16 23:41:29,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 396 transitions, 862 flow [2024-11-16 23:41:29,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:29,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1151 transitions. [2024-11-16 23:41:29,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9156722354813047 [2024-11-16 23:41:29,456 INFO L175 Difference]: Start difference. First operand has 399 places, 399 transitions, 822 flow. Second operand 3 states and 1151 transitions. [2024-11-16 23:41:29,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 396 transitions, 862 flow [2024-11-16 23:41:29,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 396 transitions, 858 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:41:29,462 INFO L231 Difference]: Finished difference. Result has 396 places, 396 transitions, 814 flow [2024-11-16 23:41:29,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=814, PETRI_PLACES=396, PETRI_TRANSITIONS=396} [2024-11-16 23:41:29,463 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, -4 predicate places. [2024-11-16 23:41:29,464 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 396 transitions, 814 flow [2024-11-16 23:41:29,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:29,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:29,465 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:29,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:41:29,465 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:29,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2101496540, now seen corresponding path program 1 times [2024-11-16 23:41:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214641832] [2024-11-16 23:41:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:29,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:29,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:29,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214641832] [2024-11-16 23:41:29,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214641832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:29,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:29,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439484427] [2024-11-16 23:41:29,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:29,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:29,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:29,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:29,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:30,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 419 [2024-11-16 23:41:30,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 396 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:30,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:30,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 419 [2024-11-16 23:41:30,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:37,476 INFO L124 PetriNetUnfolderBase]: 22282/61261 cut-off events. [2024-11-16 23:41:37,477 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2024-11-16 23:41:37,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95328 conditions, 61261 events. 22282/61261 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 731358 event pairs, 21418 based on Foata normal form. 0/57111 useless extension candidates. Maximal degree in co-relation 95234. Up to 33875 conditions per place. [2024-11-16 23:41:37,995 INFO L140 encePairwiseOnDemand]: 413/419 looper letters, 85 selfloop transitions, 5 changer transitions 0/395 dead transitions. [2024-11-16 23:41:37,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 395 transitions, 992 flow [2024-11-16 23:41:37,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:41:37,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:41:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1951 transitions. [2024-11-16 23:41:37,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760540970564836 [2024-11-16 23:41:37,999 INFO L175 Difference]: Start difference. First operand has 396 places, 396 transitions, 814 flow. Second operand 6 states and 1951 transitions. [2024-11-16 23:41:37,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 395 transitions, 992 flow [2024-11-16 23:41:38,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 395 transitions, 991 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:41:38,010 INFO L231 Difference]: Finished difference. Result has 399 places, 395 transitions, 821 flow [2024-11-16 23:41:38,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=399, PETRI_TRANSITIONS=395} [2024-11-16 23:41:38,012 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, -1 predicate places. [2024-11-16 23:41:38,012 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 395 transitions, 821 flow [2024-11-16 23:41:38,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:38,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:38,014 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:38,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:41:38,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:38,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:38,015 INFO L85 PathProgramCache]: Analyzing trace with hash -114534121, now seen corresponding path program 1 times [2024-11-16 23:41:38,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:38,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135013507] [2024-11-16 23:41:38,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:38,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:38,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:38,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135013507] [2024-11-16 23:41:38,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135013507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:38,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:38,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:38,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630549589] [2024-11-16 23:41:38,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:38,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:38,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:38,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:38,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:38,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 419 [2024-11-16 23:41:38,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 395 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:38,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:38,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 419 [2024-11-16 23:41:38,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:45,657 INFO L124 PetriNetUnfolderBase]: 22282/61260 cut-off events. [2024-11-16 23:41:45,657 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2024-11-16 23:41:45,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95332 conditions, 61260 events. 22282/61260 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 730933 event pairs, 21418 based on Foata normal form. 0/57111 useless extension candidates. Maximal degree in co-relation 95238. Up to 33875 conditions per place. [2024-11-16 23:41:46,020 INFO L140 encePairwiseOnDemand]: 413/419 looper letters, 85 selfloop transitions, 5 changer transitions 0/394 dead transitions. [2024-11-16 23:41:46,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 394 transitions, 999 flow [2024-11-16 23:41:46,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:41:46,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:41:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1951 transitions. [2024-11-16 23:41:46,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760540970564836 [2024-11-16 23:41:46,025 INFO L175 Difference]: Start difference. First operand has 399 places, 395 transitions, 821 flow. Second operand 6 states and 1951 transitions. [2024-11-16 23:41:46,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 394 transitions, 999 flow [2024-11-16 23:41:46,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 394 transitions, 989 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:41:46,034 INFO L231 Difference]: Finished difference. Result has 398 places, 394 transitions, 819 flow [2024-11-16 23:41:46,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=819, PETRI_PLACES=398, PETRI_TRANSITIONS=394} [2024-11-16 23:41:46,036 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, -2 predicate places. [2024-11-16 23:41:46,037 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 394 transitions, 819 flow [2024-11-16 23:41:46,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:46,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:46,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:46,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:41:46,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:46,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:46,039 INFO L85 PathProgramCache]: Analyzing trace with hash -189207095, now seen corresponding path program 1 times [2024-11-16 23:41:46,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:46,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862661926] [2024-11-16 23:41:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:46,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:46,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:46,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862661926] [2024-11-16 23:41:46,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862661926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:46,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:46,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:46,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181482418] [2024-11-16 23:41:46,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:46,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:46,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:46,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:46,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:46,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 419 [2024-11-16 23:41:46,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 394 transitions, 819 flow. Second operand has 6 states, 6 states have (on average 305.8333333333333) internal successors, (1835), 6 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:46,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:46,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 419 [2024-11-16 23:41:46,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:55,216 INFO L124 PetriNetUnfolderBase]: 26036/70942 cut-off events. [2024-11-16 23:41:55,217 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2024-11-16 23:41:55,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110750 conditions, 70942 events. 26036/70942 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 1461. Compared 875604 event pairs, 24776 based on Foata normal form. 0/66052 useless extension candidates. Maximal degree in co-relation 110655. Up to 39463 conditions per place. [2024-11-16 23:41:55,579 INFO L140 encePairwiseOnDemand]: 392/419 looper letters, 105 selfloop transitions, 86 changer transitions 0/487 dead transitions. [2024-11-16 23:41:55,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 487 transitions, 1387 flow [2024-11-16 23:41:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:41:55,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:41:55,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2010 transitions. [2024-11-16 23:41:55,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7995226730310262 [2024-11-16 23:41:55,585 INFO L175 Difference]: Start difference. First operand has 398 places, 394 transitions, 819 flow. Second operand 6 states and 2010 transitions. [2024-11-16 23:41:55,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 487 transitions, 1387 flow [2024-11-16 23:41:55,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 487 transitions, 1377 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:41:55,601 INFO L231 Difference]: Finished difference. Result has 403 places, 479 transitions, 1375 flow [2024-11-16 23:41:55,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1375, PETRI_PLACES=403, PETRI_TRANSITIONS=479} [2024-11-16 23:41:55,602 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, 3 predicate places. [2024-11-16 23:41:55,602 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 479 transitions, 1375 flow [2024-11-16 23:41:55,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.8333333333333) internal successors, (1835), 6 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:55,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:55,605 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:55,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:41:55,607 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:55,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1999932342, now seen corresponding path program 1 times [2024-11-16 23:41:55,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:55,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482069869] [2024-11-16 23:41:55,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:55,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:55,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:55,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482069869] [2024-11-16 23:41:55,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482069869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:55,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:55,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:41:55,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071800505] [2024-11-16 23:41:55,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:55,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:55,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:55,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:55,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:55,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 419 [2024-11-16 23:41:55,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 479 transitions, 1375 flow. Second operand has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:55,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:55,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 419 [2024-11-16 23:41:55,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:56,096 INFO L124 PetriNetUnfolderBase]: 309/2507 cut-off events. [2024-11-16 23:41:56,096 INFO L125 PetriNetUnfolderBase]: For 217/238 co-relation queries the response was YES. [2024-11-16 23:41:56,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3409 conditions, 2507 events. 309/2507 cut-off events. For 217/238 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 17226 event pairs, 94 based on Foata normal form. 1/2314 useless extension candidates. Maximal degree in co-relation 3310. Up to 237 conditions per place. [2024-11-16 23:41:56,105 INFO L140 encePairwiseOnDemand]: 416/419 looper letters, 22 selfloop transitions, 3 changer transitions 0/481 dead transitions. [2024-11-16 23:41:56,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 481 transitions, 1429 flow [2024-11-16 23:41:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:56,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1162 transitions. [2024-11-16 23:41:56,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.92442322991249 [2024-11-16 23:41:56,108 INFO L175 Difference]: Start difference. First operand has 403 places, 479 transitions, 1375 flow. Second operand 3 states and 1162 transitions. [2024-11-16 23:41:56,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 481 transitions, 1429 flow [2024-11-16 23:41:56,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 481 transitions, 1429 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:56,114 INFO L231 Difference]: Finished difference. Result has 406 places, 479 transitions, 1386 flow [2024-11-16 23:41:56,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=1375, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1386, PETRI_PLACES=406, PETRI_TRANSITIONS=479} [2024-11-16 23:41:56,115 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, 6 predicate places. [2024-11-16 23:41:56,115 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 479 transitions, 1386 flow [2024-11-16 23:41:56,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:56,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:56,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:56,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:41:56,116 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1_funErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-16 23:41:56,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1640725624, now seen corresponding path program 1 times [2024-11-16 23:41:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635936393] [2024-11-16 23:41:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:56,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:56,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635936393] [2024-11-16 23:41:56,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635936393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:56,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:56,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:56,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691187723] [2024-11-16 23:41:56,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:56,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:56,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:56,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:56,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:56,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 419 [2024-11-16 23:41:56,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 479 transitions, 1386 flow. Second operand has 6 states, 6 states have (on average 313.5) internal successors, (1881), 6 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:56,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:56,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 419 [2024-11-16 23:41:56,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand