./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_10-arraylist_rc.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_10-arraylist_rc.c -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 9c310ca743e037dbc4fbe68f3a66f9551e82339d89bfe5780388869aac3fce99 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:57,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:57,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:57,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:57,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:57,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:57,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:57,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:57,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:57,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:57,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:57,472 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:57,473 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:57,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:57,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:57,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:57,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:57,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:57,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:57,474 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/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 -> 9c310ca743e037dbc4fbe68f3a66f9551e82339d89bfe5780388869aac3fce99 [2025-04-29 11:08:57,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:57,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:57,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:57,716 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:57,717 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:57,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_10-arraylist_rc.c [2025-04-29 11:08:59,068 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94579f4e/8c631c9896db4ab2a8461702de0f38c8/FLAG97d4c3dbd [2025-04-29 11:08:59,251 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:59,252 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_10-arraylist_rc.c [2025-04-29 11:08:59,254 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:59,254 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:59,254 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:59,261 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94579f4e/8c631c9896db4ab2a8461702de0f38c8/FLAG97d4c3dbd [2025-04-29 11:09:00,119 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94579f4e/8c631c9896db4ab2a8461702de0f38c8 [2025-04-29 11:09:00,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:09:00,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:09:00,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:09:00,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:09:00,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:09:00,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5269aa9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00, skipping insertion in model container [2025-04-29 11:09:00,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,141 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:09:00,324 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:09:00,336 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:09:00,362 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:09:00,378 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:09:00,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00 WrapperNode [2025-04-29 11:09:00,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:09:00,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:09:00,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:09:00,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:09:00,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,423 INFO L138 Inliner]: procedures = 20, calls = 48, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 254 [2025-04-29 11:09:00,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:09:00,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:09:00,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:09:00,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:09:00,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,463 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:09:00,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:09:00,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:09:00,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:09:00,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (1/1) ... [2025-04-29 11:09:00,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:09:00,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:00,505 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) [2025-04-29 11:09:00,507 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 [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:09:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:09:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:09:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:09:00,522 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:09:00,612 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:09:00,614 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:09:01,101 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:09:01,101 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:09:01,127 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:09:01,127 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:09:01,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:09:01 BoogieIcfgContainer [2025-04-29 11:09:01,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:09:01,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:09:01,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:09:01,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:09:01,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:09:00" (1/3) ... [2025-04-29 11:09:01,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c488b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:09:01, skipping insertion in model container [2025-04-29 11:09:01,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:09:00" (2/3) ... [2025-04-29 11:09:01,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c488b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:09:01, skipping insertion in model container [2025-04-29 11:09:01,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:09:01" (3/3) ... [2025-04-29 11:09:01,135 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_10-arraylist_rc.c [2025-04-29 11:09:01,146 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:09:01,147 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_10-arraylist_rc.c that has 2 procedures, 296 locations, 298 edges, 1 initial locations, 2 loop locations, and 18 error locations. [2025-04-29 11:09:01,147 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:09:01,250 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:09:01,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 299 transitions, 602 flow [2025-04-29 11:09:01,363 INFO L116 PetriNetUnfolderBase]: 4/298 cut-off events. [2025-04-29 11:09:01,365 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:09:01,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 298 events. 4/298 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 397 event pairs, 0 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 170. Up to 2 conditions per place. [2025-04-29 11:09:01,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 299 transitions, 602 flow [2025-04-29 11:09:01,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 298 places, 298 transitions, 599 flow [2025-04-29 11:09:01,386 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:09:01,394 INFO L340 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;@2537e26d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:09:01,396 INFO L341 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-04-29 11:09:01,415 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:09:01,417 INFO L116 PetriNetUnfolderBase]: 3/91 cut-off events. [2025-04-29 11:09:01,417 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:09:01,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:01,417 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:01,418 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:01,422 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash -589550235, now seen corresponding path program 1 times [2025-04-29 11:09:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:01,428 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300892207] [2025-04-29 11:09:01,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:01,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-04-29 11:09:01,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-04-29 11:09:01,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:01,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:01,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:01,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:01,661 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300892207] [2025-04-29 11:09:01,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300892207] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:01,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:01,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:09:01,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816816666] [2025-04-29 11:09:01,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:01,671 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:09:01,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:01,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:09:01,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:09:01,713 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 299 [2025-04-29 11:09:01,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 298 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 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) [2025-04-29 11:09:01,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:01,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 299 [2025-04-29 11:09:01,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:01,802 INFO L116 PetriNetUnfolderBase]: 8/376 cut-off events. [2025-04-29 11:09:01,803 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:09:01,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 376 events. 8/376 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 873 event pairs, 6 based on Foata normal form. 5/350 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2025-04-29 11:09:01,806 INFO L140 encePairwiseOnDemand]: 294/299 looper letters, 10 selfloop transitions, 2 changer transitions 1/297 dead transitions. [2025-04-29 11:09:01,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 297 transitions, 621 flow [2025-04-29 11:09:01,808 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:09:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:09:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2025-04-29 11:09:01,822 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9732441471571907 [2025-04-29 11:09:01,825 INFO L175 Difference]: Start difference. First operand has 298 places, 298 transitions, 599 flow. Second operand 3 states and 873 transitions. [2025-04-29 11:09:01,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 297 transitions, 621 flow [2025-04-29 11:09:01,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 297 transitions, 620 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:09:01,836 INFO L231 Difference]: Finished difference. Result has 300 places, 296 transitions, 604 flow [2025-04-29 11:09:01,839 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=300, PETRI_TRANSITIONS=296} [2025-04-29 11:09:01,842 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 2 predicate places. [2025-04-29 11:09:01,842 INFO L485 AbstractCegarLoop]: Abstraction has has 300 places, 296 transitions, 604 flow [2025-04-29 11:09:01,843 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 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) [2025-04-29 11:09:01,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:01,843 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:01,843 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:09:01,844 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:01,844 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:01,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1875301058, now seen corresponding path program 1 times [2025-04-29 11:09:01,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:01,846 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528409659] [2025-04-29 11:09:01,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:01,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:01,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-29 11:09:01,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-29 11:09:01,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:01,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:02,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:02,011 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528409659] [2025-04-29 11:09:02,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528409659] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:02,011 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673650610] [2025-04-29 11:09:02,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:02,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:02,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:02,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:02,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-29 11:09:02,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-29 11:09:02,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-29 11:09:02,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:02,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:02,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:09:02,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:02,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:09:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:02,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673650610] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:09:02,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:09:02,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-29 11:09:02,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115266021] [2025-04-29 11:09:02,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:09:02,202 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:09:02,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:02,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:09:02,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:09:02,224 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 299 [2025-04-29 11:09:02,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 296 transitions, 604 flow. Second operand has 10 states, 10 states have (on average 284.8) internal successors, (2848), 10 states have internal predecessors, (2848), 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) [2025-04-29 11:09:02,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:02,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 299 [2025-04-29 11:09:02,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:02,351 INFO L116 PetriNetUnfolderBase]: 8/382 cut-off events. [2025-04-29 11:09:02,351 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:09:02,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 382 events. 8/382 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 870 event pairs, 6 based on Foata normal form. 2/354 useless extension candidates. Maximal degree in co-relation 384. Up to 24 conditions per place. [2025-04-29 11:09:02,354 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 14 selfloop transitions, 9 changer transitions 0/304 dead transitions. [2025-04-29 11:09:02,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 304 transitions, 668 flow [2025-04-29 11:09:02,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:09:02,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:09:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2572 transitions. [2025-04-29 11:09:02,363 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9557785209959123 [2025-04-29 11:09:02,364 INFO L175 Difference]: Start difference. First operand has 300 places, 296 transitions, 604 flow. Second operand 9 states and 2572 transitions. [2025-04-29 11:09:02,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 304 transitions, 668 flow [2025-04-29 11:09:02,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 304 transitions, 666 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:09:02,371 INFO L231 Difference]: Finished difference. Result has 309 places, 302 transitions, 652 flow [2025-04-29 11:09:02,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=652, PETRI_PLACES=309, PETRI_TRANSITIONS=302} [2025-04-29 11:09:02,372 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 11 predicate places. [2025-04-29 11:09:02,372 INFO L485 AbstractCegarLoop]: Abstraction has has 309 places, 302 transitions, 652 flow [2025-04-29 11:09:02,373 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 284.8) internal successors, (2848), 10 states have internal predecessors, (2848), 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) [2025-04-29 11:09:02,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:02,373 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:02,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-04-29 11:09:02,579 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:02,580 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:02,580 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1109611682, now seen corresponding path program 2 times [2025-04-29 11:09:02,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:02,580 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673374351] [2025-04-29 11:09:02,581 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:09:02,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:02,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-04-29 11:09:02,617 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 74 statements. [2025-04-29 11:09:02,617 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:09:02,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-04-29 11:09:02,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:02,995 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673374351] [2025-04-29 11:09:02,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673374351] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:02,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:02,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:02,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591206583] [2025-04-29 11:09:02,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:02,997 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:02,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:02,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:02,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:03,383 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 299 [2025-04-29 11:09:03,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 302 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 215.33333333333334) internal successors, (1292), 6 states have internal predecessors, (1292), 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) [2025-04-29 11:09:03,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:03,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 299 [2025-04-29 11:09:03,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:03,637 INFO L116 PetriNetUnfolderBase]: 366/1657 cut-off events. [2025-04-29 11:09:03,638 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-29 11:09:03,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2499 conditions, 1657 events. 366/1657 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10061 event pairs, 364 based on Foata normal form. 0/1531 useless extension candidates. Maximal degree in co-relation 2426. Up to 800 conditions per place. [2025-04-29 11:09:03,663 INFO L140 encePairwiseOnDemand]: 287/299 looper letters, 71 selfloop transitions, 10 changer transitions 0/300 dead transitions. [2025-04-29 11:09:03,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 300 transitions, 810 flow [2025-04-29 11:09:03,665 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:03,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1367 transitions. [2025-04-29 11:09:03,667 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.761984392419175 [2025-04-29 11:09:03,667 INFO L175 Difference]: Start difference. First operand has 309 places, 302 transitions, 652 flow. Second operand 6 states and 1367 transitions. [2025-04-29 11:09:03,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 300 transitions, 810 flow [2025-04-29 11:09:03,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 300 transitions, 804 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-04-29 11:09:03,673 INFO L231 Difference]: Finished difference. Result has 311 places, 300 transitions, 662 flow [2025-04-29 11:09:03,673 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=662, PETRI_PLACES=311, PETRI_TRANSITIONS=300} [2025-04-29 11:09:03,674 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 13 predicate places. [2025-04-29 11:09:03,674 INFO L485 AbstractCegarLoop]: Abstraction has has 311 places, 300 transitions, 662 flow [2025-04-29 11:09:03,675 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.33333333333334) internal successors, (1292), 6 states have internal predecessors, (1292), 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) [2025-04-29 11:09:03,675 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:03,675 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:03,675 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:09:03,676 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:03,676 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:03,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1344074248, now seen corresponding path program 1 times [2025-04-29 11:09:03,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:03,676 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862632229] [2025-04-29 11:09:03,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:03,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:03,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-04-29 11:09:03,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-04-29 11:09:03,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:03,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-04-29 11:09:03,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:03,720 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862632229] [2025-04-29 11:09:03,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862632229] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:03,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:03,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:09:03,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166567843] [2025-04-29 11:09:03,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:03,721 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:09:03,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:03,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:09:03,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:09:03,748 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 299 [2025-04-29 11:09:03,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 300 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2025-04-29 11:09:03,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:03,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 299 [2025-04-29 11:09:03,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:03,790 INFO L116 PetriNetUnfolderBase]: 8/491 cut-off events. [2025-04-29 11:09:03,791 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-29 11:09:03,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 491 events. 8/491 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 869 event pairs, 6 based on Foata normal form. 1/458 useless extension candidates. Maximal degree in co-relation 494. Up to 24 conditions per place. [2025-04-29 11:09:03,792 INFO L140 encePairwiseOnDemand]: 296/299 looper letters, 10 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2025-04-29 11:09:03,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 301 transitions, 688 flow [2025-04-29 11:09:03,793 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:09:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:09:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2025-04-29 11:09:03,795 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9710144927536232 [2025-04-29 11:09:03,795 INFO L175 Difference]: Start difference. First operand has 311 places, 300 transitions, 662 flow. Second operand 3 states and 871 transitions. [2025-04-29 11:09:03,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 301 transitions, 688 flow [2025-04-29 11:09:03,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 301 transitions, 668 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:03,799 INFO L231 Difference]: Finished difference. Result has 309 places, 301 transitions, 654 flow [2025-04-29 11:09:03,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=309, PETRI_TRANSITIONS=301} [2025-04-29 11:09:03,799 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 11 predicate places. [2025-04-29 11:09:03,800 INFO L485 AbstractCegarLoop]: Abstraction has has 309 places, 301 transitions, 654 flow [2025-04-29 11:09:03,800 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2025-04-29 11:09:03,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:03,800 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:03,801 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:09:03,801 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:03,801 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:03,801 INFO L85 PathProgramCache]: Analyzing trace with hash 632790328, now seen corresponding path program 1 times [2025-04-29 11:09:03,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:03,801 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895746959] [2025-04-29 11:09:03,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:03,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:03,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-04-29 11:09:03,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-04-29 11:09:03,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:03,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:03,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:03,936 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895746959] [2025-04-29 11:09:03,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895746959] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:03,937 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874553420] [2025-04-29 11:09:03,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:03,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:03,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:03,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:03,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-29 11:09:03,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-04-29 11:09:04,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-04-29 11:09:04,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:04,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:04,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-29 11:09:04,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:04,068 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:04,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:09:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:04,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874553420] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:09:04,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:09:04,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-04-29 11:09:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747301387] [2025-04-29 11:09:04,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:09:04,159 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-29 11:09:04,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:04,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-29 11:09:04,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:09:04,193 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 299 [2025-04-29 11:09:04,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 301 transitions, 654 flow. Second operand has 18 states, 18 states have (on average 284.8888888888889) internal successors, (5128), 18 states have internal predecessors, (5128), 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) [2025-04-29 11:09:04,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:04,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 299 [2025-04-29 11:09:04,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:04,416 INFO L116 PetriNetUnfolderBase]: 8/511 cut-off events. [2025-04-29 11:09:04,416 INFO L117 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2025-04-29 11:09:04,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 511 events. 8/511 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 860 event pairs, 6 based on Foata normal form. 4/481 useless extension candidates. Maximal degree in co-relation 476. Up to 24 conditions per place. [2025-04-29 11:09:04,418 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 18 selfloop transitions, 21 changer transitions 0/319 dead transitions. [2025-04-29 11:09:04,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 319 transitions, 820 flow [2025-04-29 11:09:04,418 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-29 11:09:04,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-04-29 11:09:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5986 transitions. [2025-04-29 11:09:04,426 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9533365185539099 [2025-04-29 11:09:04,426 INFO L175 Difference]: Start difference. First operand has 309 places, 301 transitions, 654 flow. Second operand 21 states and 5986 transitions. [2025-04-29 11:09:04,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 319 transitions, 820 flow [2025-04-29 11:09:04,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 319 transitions, 818 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:09:04,430 INFO L231 Difference]: Finished difference. Result has 333 places, 314 transitions, 782 flow [2025-04-29 11:09:04,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=782, PETRI_PLACES=333, PETRI_TRANSITIONS=314} [2025-04-29 11:09:04,431 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 35 predicate places. [2025-04-29 11:09:04,431 INFO L485 AbstractCegarLoop]: Abstraction has has 333 places, 314 transitions, 782 flow [2025-04-29 11:09:04,433 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 284.8888888888889) internal successors, (5128), 18 states have internal predecessors, (5128), 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) [2025-04-29 11:09:04,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:04,434 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:04,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-29 11:09:04,634 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:04,635 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:04,641 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:04,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1043048200, now seen corresponding path program 2 times [2025-04-29 11:09:04,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:04,641 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221711658] [2025-04-29 11:09:04,641 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:09:04,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:04,653 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-04-29 11:09:04,657 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 102 statements. [2025-04-29 11:09:04,658 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:09:04,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-04-29 11:09:04,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:04,898 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221711658] [2025-04-29 11:09:04,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221711658] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:04,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:04,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:04,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513143287] [2025-04-29 11:09:04,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:04,899 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:04,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:04,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:04,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:05,262 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 299 [2025-04-29 11:09:05,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 314 transitions, 782 flow. Second operand has 6 states, 6 states have (on average 215.33333333333334) internal successors, (1292), 6 states have internal predecessors, (1292), 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) [2025-04-29 11:09:05,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:05,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 299 [2025-04-29 11:09:05,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:05,500 INFO L116 PetriNetUnfolderBase]: 366/1784 cut-off events. [2025-04-29 11:09:05,500 INFO L117 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2025-04-29 11:09:05,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 1784 events. 366/1784 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10114 event pairs, 364 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 2581. Up to 830 conditions per place. [2025-04-29 11:09:05,506 INFO L140 encePairwiseOnDemand]: 287/299 looper letters, 71 selfloop transitions, 10 changer transitions 0/312 dead transitions. [2025-04-29 11:09:05,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 312 transitions, 940 flow [2025-04-29 11:09:05,506 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1367 transitions. [2025-04-29 11:09:05,508 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.761984392419175 [2025-04-29 11:09:05,508 INFO L175 Difference]: Start difference. First operand has 333 places, 314 transitions, 782 flow. Second operand 6 states and 1367 transitions. [2025-04-29 11:09:05,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 312 transitions, 940 flow [2025-04-29 11:09:05,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 312 transitions, 916 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-04-29 11:09:05,513 INFO L231 Difference]: Finished difference. Result has 330 places, 312 transitions, 774 flow [2025-04-29 11:09:05,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=774, PETRI_PLACES=330, PETRI_TRANSITIONS=312} [2025-04-29 11:09:05,514 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 32 predicate places. [2025-04-29 11:09:05,514 INFO L485 AbstractCegarLoop]: Abstraction has has 330 places, 312 transitions, 774 flow [2025-04-29 11:09:05,514 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.33333333333334) internal successors, (1292), 6 states have internal predecessors, (1292), 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) [2025-04-29 11:09:05,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:05,515 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:05,515 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:09:05,515 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:05,515 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:05,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1355168357, now seen corresponding path program 1 times [2025-04-29 11:09:05,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:05,515 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106206966] [2025-04-29 11:09:05,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:05,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:05,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-04-29 11:09:05,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-04-29 11:09:05,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:05,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:05,758 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:05,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:05,758 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106206966] [2025-04-29 11:09:05,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106206966] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:05,758 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556626244] [2025-04-29 11:09:05,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:05,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:05,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:05,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-29 11:09:05,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-04-29 11:09:05,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-04-29 11:09:05,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:05,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:05,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-29 11:09:05,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:05,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:09:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:09:06,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556626244] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:09:06,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:09:06,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-04-29 11:09:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530369876] [2025-04-29 11:09:06,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:09:06,106 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-29 11:09:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:06,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-29 11:09:06,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-04-29 11:09:06,139 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 299 [2025-04-29 11:09:06,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 312 transitions, 774 flow. Second operand has 23 states, 23 states have (on average 285.0) internal successors, (6555), 23 states have internal predecessors, (6555), 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) [2025-04-29 11:09:06,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:06,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 299 [2025-04-29 11:09:06,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:06,441 INFO L116 PetriNetUnfolderBase]: 8/522 cut-off events. [2025-04-29 11:09:06,441 INFO L117 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2025-04-29 11:09:06,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 522 events. 8/522 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 847 event pairs, 6 based on Foata normal form. 3/495 useless extension candidates. Maximal degree in co-relation 498. Up to 24 conditions per place. [2025-04-29 11:09:06,443 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 21 selfloop transitions, 30 changer transitions 0/329 dead transitions. [2025-04-29 11:09:06,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 329 transitions, 998 flow [2025-04-29 11:09:06,443 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-29 11:09:06,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-04-29 11:09:06,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8544 transitions. [2025-04-29 11:09:06,454 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9525083612040134 [2025-04-29 11:09:06,454 INFO L175 Difference]: Start difference. First operand has 330 places, 312 transitions, 774 flow. Second operand 30 states and 8544 transitions. [2025-04-29 11:09:06,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 329 transitions, 998 flow [2025-04-29 11:09:06,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 329 transitions, 978 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:06,460 INFO L231 Difference]: Finished difference. Result has 358 places, 322 transitions, 906 flow [2025-04-29 11:09:06,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=906, PETRI_PLACES=358, PETRI_TRANSITIONS=322} [2025-04-29 11:09:06,461 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 60 predicate places. [2025-04-29 11:09:06,461 INFO L485 AbstractCegarLoop]: Abstraction has has 358 places, 322 transitions, 906 flow [2025-04-29 11:09:06,462 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 285.0) internal successors, (6555), 23 states have internal predecessors, (6555), 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) [2025-04-29 11:09:06,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:06,463 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:06,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-29 11:09:06,663 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:06,663 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:06,664 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:06,664 INFO L85 PathProgramCache]: Analyzing trace with hash -667880824, now seen corresponding path program 2 times [2025-04-29 11:09:06,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:06,664 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809553870] [2025-04-29 11:09:06,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:09:06,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:06,679 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 129 statements into 2 equivalence classes. [2025-04-29 11:09:06,684 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 79 of 129 statements. [2025-04-29 11:09:06,685 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:09:06,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:09:06,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:06,937 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809553870] [2025-04-29 11:09:06,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809553870] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:06,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:06,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:06,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724846686] [2025-04-29 11:09:06,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:06,937 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:06,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:06,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:06,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:07,352 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 299 [2025-04-29 11:09:07,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 322 transitions, 906 flow. Second operand has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 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) [2025-04-29 11:09:07,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:07,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 299 [2025-04-29 11:09:07,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:07,547 INFO L116 PetriNetUnfolderBase]: 392/1887 cut-off events. [2025-04-29 11:09:07,547 INFO L117 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2025-04-29 11:09:07,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2964 conditions, 1887 events. 392/1887 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10788 event pairs, 390 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 2732. Up to 899 conditions per place. [2025-04-29 11:09:07,554 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 83 selfloop transitions, 5 changer transitions 0/321 dead transitions. [2025-04-29 11:09:07,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 321 transitions, 1080 flow [2025-04-29 11:09:07,555 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1342 transitions. [2025-04-29 11:09:07,557 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7480490523968785 [2025-04-29 11:09:07,557 INFO L175 Difference]: Start difference. First operand has 358 places, 322 transitions, 906 flow. Second operand 6 states and 1342 transitions. [2025-04-29 11:09:07,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 321 transitions, 1080 flow [2025-04-29 11:09:07,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 321 transitions, 1034 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-04-29 11:09:07,562 INFO L231 Difference]: Finished difference. Result has 344 places, 321 transitions, 868 flow [2025-04-29 11:09:07,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=868, PETRI_PLACES=344, PETRI_TRANSITIONS=321} [2025-04-29 11:09:07,563 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 46 predicate places. [2025-04-29 11:09:07,563 INFO L485 AbstractCegarLoop]: Abstraction has has 344 places, 321 transitions, 868 flow [2025-04-29 11:09:07,563 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 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) [2025-04-29 11:09:07,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:07,563 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:07,564 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-29 11:09:07,564 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:07,564 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1205151697, now seen corresponding path program 1 times [2025-04-29 11:09:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:07,565 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478108847] [2025-04-29 11:09:07,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:07,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:07,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-04-29 11:09:07,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-04-29 11:09:07,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:07,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:09:07,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:07,963 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478108847] [2025-04-29 11:09:07,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478108847] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:07,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281570273] [2025-04-29 11:09:07,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:07,963 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:07,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:07,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:08,498 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 299 [2025-04-29 11:09:08,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 321 transitions, 868 flow. Second operand has 6 states, 6 states have (on average 239.83333333333334) internal successors, (1439), 6 states have internal predecessors, (1439), 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) [2025-04-29 11:09:08,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:08,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 299 [2025-04-29 11:09:08,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:08,571 INFO L116 PetriNetUnfolderBase]: 56/761 cut-off events. [2025-04-29 11:09:08,572 INFO L117 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2025-04-29 11:09:08,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122 conditions, 761 events. 56/761 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2626 event pairs, 54 based on Foata normal form. 0/709 useless extension candidates. Maximal degree in co-relation 911. Up to 195 conditions per place. [2025-04-29 11:09:08,574 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 57 selfloop transitions, 5 changer transitions 0/320 dead transitions. [2025-04-29 11:09:08,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 320 transitions, 990 flow [2025-04-29 11:09:08,575 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1472 transitions. [2025-04-29 11:09:08,577 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2025-04-29 11:09:08,577 INFO L175 Difference]: Start difference. First operand has 344 places, 321 transitions, 868 flow. Second operand 6 states and 1472 transitions. [2025-04-29 11:09:08,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 320 transitions, 990 flow [2025-04-29 11:09:08,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 320 transitions, 980 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:08,582 INFO L231 Difference]: Finished difference. Result has 343 places, 320 transitions, 866 flow [2025-04-29 11:09:08,582 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=866, PETRI_PLACES=343, PETRI_TRANSITIONS=320} [2025-04-29 11:09:08,583 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 45 predicate places. [2025-04-29 11:09:08,583 INFO L485 AbstractCegarLoop]: Abstraction has has 343 places, 320 transitions, 866 flow [2025-04-29 11:09:08,583 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.83333333333334) internal successors, (1439), 6 states have internal predecessors, (1439), 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) [2025-04-29 11:09:08,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:08,583 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:08,584 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-29 11:09:08,584 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:08,584 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:08,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1903586192, now seen corresponding path program 1 times [2025-04-29 11:09:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:08,585 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065415783] [2025-04-29 11:09:08,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:08,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:08,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-04-29 11:09:08,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-04-29 11:09:08,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:08,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:09:08,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:08,980 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065415783] [2025-04-29 11:09:08,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065415783] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:08,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:08,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:08,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767624053] [2025-04-29 11:09:08,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:08,981 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:08,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:08,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:08,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:09,292 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 299 [2025-04-29 11:09:09,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 320 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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) [2025-04-29 11:09:09,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:09,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 299 [2025-04-29 11:09:09,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:09,406 INFO L116 PetriNetUnfolderBase]: 38/676 cut-off events. [2025-04-29 11:09:09,406 INFO L117 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2025-04-29 11:09:09,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 676 events. 38/676 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2082 event pairs, 36 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 791. Up to 158 conditions per place. [2025-04-29 11:09:09,408 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 53 selfloop transitions, 5 changer transitions 0/319 dead transitions. [2025-04-29 11:09:09,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 319 transitions, 980 flow [2025-04-29 11:09:09,408 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:09,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1487 transitions. [2025-04-29 11:09:09,410 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8288740245261984 [2025-04-29 11:09:09,410 INFO L175 Difference]: Start difference. First operand has 343 places, 320 transitions, 866 flow. Second operand 6 states and 1487 transitions. [2025-04-29 11:09:09,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 319 transitions, 980 flow [2025-04-29 11:09:09,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 319 transitions, 970 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:09,415 INFO L231 Difference]: Finished difference. Result has 342 places, 319 transitions, 864 flow [2025-04-29 11:09:09,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=864, PETRI_PLACES=342, PETRI_TRANSITIONS=319} [2025-04-29 11:09:09,416 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 44 predicate places. [2025-04-29 11:09:09,416 INFO L485 AbstractCegarLoop]: Abstraction has has 342 places, 319 transitions, 864 flow [2025-04-29 11:09:09,416 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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) [2025-04-29 11:09:09,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:09,417 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:09,417 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-29 11:09:09,417 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:09,417 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash -867875296, now seen corresponding path program 1 times [2025-04-29 11:09:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:09,418 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341790700] [2025-04-29 11:09:09,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:09,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-04-29 11:09:09,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-04-29 11:09:09,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:09,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-29 11:09:09,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:09,749 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341790700] [2025-04-29 11:09:09,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341790700] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:09,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:09,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:09,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480928947] [2025-04-29 11:09:09,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:09,749 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:09,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:09,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:09,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:09,971 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 299 [2025-04-29 11:09:09,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 319 transitions, 864 flow. Second operand has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 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) [2025-04-29 11:09:09,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:09,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 299 [2025-04-29 11:09:09,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:10,164 INFO L116 PetriNetUnfolderBase]: 366/1791 cut-off events. [2025-04-29 11:09:10,164 INFO L117 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2025-04-29 11:09:10,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2803 conditions, 1791 events. 366/1791 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10067 event pairs, 364 based on Foata normal form. 0/1671 useless extension candidates. Maximal degree in co-relation 2594. Up to 846 conditions per place. [2025-04-29 11:09:10,170 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 79 selfloop transitions, 5 changer transitions 0/318 dead transitions. [2025-04-29 11:09:10,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 318 transitions, 1030 flow [2025-04-29 11:09:10,170 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1357 transitions. [2025-04-29 11:09:10,172 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2025-04-29 11:09:10,172 INFO L175 Difference]: Start difference. First operand has 342 places, 319 transitions, 864 flow. Second operand 6 states and 1357 transitions. [2025-04-29 11:09:10,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 318 transitions, 1030 flow [2025-04-29 11:09:10,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 318 transitions, 1020 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:10,177 INFO L231 Difference]: Finished difference. Result has 341 places, 318 transitions, 862 flow [2025-04-29 11:09:10,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=341, PETRI_TRANSITIONS=318} [2025-04-29 11:09:10,178 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 43 predicate places. [2025-04-29 11:09:10,178 INFO L485 AbstractCegarLoop]: Abstraction has has 341 places, 318 transitions, 862 flow [2025-04-29 11:09:10,178 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 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) [2025-04-29 11:09:10,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:10,179 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:10,179 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-29 11:09:10,179 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:10,179 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:10,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1703215518, now seen corresponding path program 1 times [2025-04-29 11:09:10,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:10,180 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118326486] [2025-04-29 11:09:10,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:10,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 191 statements into 1 equivalence classes. [2025-04-29 11:09:10,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 191 of 191 statements. [2025-04-29 11:09:10,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:10,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2025-04-29 11:09:10,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:10,588 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118326486] [2025-04-29 11:09:10,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118326486] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:10,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:10,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:10,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584764032] [2025-04-29 11:09:10,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:10,589 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:10,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:10,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:10,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:10,913 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 299 [2025-04-29 11:09:10,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 318 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 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) [2025-04-29 11:09:10,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:10,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 299 [2025-04-29 11:09:10,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:11,084 INFO L116 PetriNetUnfolderBase]: 366/1789 cut-off events. [2025-04-29 11:09:11,084 INFO L117 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2025-04-29 11:09:11,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 1789 events. 366/1789 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10024 event pairs, 364 based on Foata normal form. 0/1671 useless extension candidates. Maximal degree in co-relation 2590. Up to 844 conditions per place. [2025-04-29 11:09:11,091 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 78 selfloop transitions, 5 changer transitions 0/317 dead transitions. [2025-04-29 11:09:11,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 317 transitions, 1026 flow [2025-04-29 11:09:11,092 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2025-04-29 11:09:11,093 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7591973244147158 [2025-04-29 11:09:11,093 INFO L175 Difference]: Start difference. First operand has 341 places, 318 transitions, 862 flow. Second operand 6 states and 1362 transitions. [2025-04-29 11:09:11,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 317 transitions, 1026 flow [2025-04-29 11:09:11,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 317 transitions, 1016 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:11,099 INFO L231 Difference]: Finished difference. Result has 340 places, 317 transitions, 860 flow [2025-04-29 11:09:11,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=860, PETRI_PLACES=340, PETRI_TRANSITIONS=317} [2025-04-29 11:09:11,101 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 42 predicate places. [2025-04-29 11:09:11,101 INFO L485 AbstractCegarLoop]: Abstraction has has 340 places, 317 transitions, 860 flow [2025-04-29 11:09:11,102 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 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) [2025-04-29 11:09:11,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:11,102 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:11,102 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-29 11:09:11,102 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:11,103 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1226905913, now seen corresponding path program 1 times [2025-04-29 11:09:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:11,103 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964296555] [2025-04-29 11:09:11,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:11,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:11,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-04-29 11:09:11,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-04-29 11:09:11,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:11,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-04-29 11:09:11,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:11,233 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964296555] [2025-04-29 11:09:11,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964296555] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:11,234 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161070032] [2025-04-29 11:09:11,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:11,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:11,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:11,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:11,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-29 11:09:11,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-04-29 11:09:11,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-04-29 11:09:11,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:11,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:11,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:09:11,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-04-29 11:09:11,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:09:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-04-29 11:09:11,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161070032] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:09:11,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:09:11,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-29 11:09:11,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538344931] [2025-04-29 11:09:11,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:09:11,634 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-29 11:09:11,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:11,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-29 11:09:11,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:09:11,718 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 299 [2025-04-29 11:09:11,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 317 transitions, 860 flow. Second operand has 10 states, 10 states have (on average 285.0) internal successors, (2850), 10 states have internal predecessors, (2850), 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) [2025-04-29 11:09:11,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:11,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 299 [2025-04-29 11:09:11,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:11,844 INFO L116 PetriNetUnfolderBase]: 8/619 cut-off events. [2025-04-29 11:09:11,844 INFO L117 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2025-04-29 11:09:11,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 619 events. 8/619 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 385 event pairs, 6 based on Foata normal form. 2/601 useless extension candidates. Maximal degree in co-relation 607. Up to 24 conditions per place. [2025-04-29 11:09:11,846 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 14 selfloop transitions, 9 changer transitions 0/325 dead transitions. [2025-04-29 11:09:11,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 325 transitions, 924 flow [2025-04-29 11:09:11,846 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:09:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:09:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2572 transitions. [2025-04-29 11:09:11,847 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9557785209959123 [2025-04-29 11:09:11,848 INFO L175 Difference]: Start difference. First operand has 340 places, 317 transitions, 860 flow. Second operand 9 states and 2572 transitions. [2025-04-29 11:09:11,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 325 transitions, 924 flow [2025-04-29 11:09:11,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 325 transitions, 914 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-29 11:09:11,853 INFO L231 Difference]: Finished difference. Result has 346 places, 323 transitions, 900 flow [2025-04-29 11:09:11,853 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=900, PETRI_PLACES=346, PETRI_TRANSITIONS=323} [2025-04-29 11:09:11,854 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 48 predicate places. [2025-04-29 11:09:11,855 INFO L485 AbstractCegarLoop]: Abstraction has has 346 places, 323 transitions, 900 flow [2025-04-29 11:09:11,855 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 285.0) internal successors, (2850), 10 states have internal predecessors, (2850), 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) [2025-04-29 11:09:11,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:11,856 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:11,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-29 11:09:12,057 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:12,057 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:12,058 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1316836729, now seen corresponding path program 2 times [2025-04-29 11:09:12,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:12,060 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369076747] [2025-04-29 11:09:12,060 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:09:12,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:12,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 425 statements into 2 equivalence classes. [2025-04-29 11:09:12,119 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 60 of 425 statements. [2025-04-29 11:09:12,120 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:09:12,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2025-04-29 11:09:12,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:12,254 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369076747] [2025-04-29 11:09:12,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369076747] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:12,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:12,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:12,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068119160] [2025-04-29 11:09:12,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:12,254 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:12,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:12,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:12,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:12,655 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 299 [2025-04-29 11:09:12,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 323 transitions, 900 flow. Second operand has 6 states, 6 states have (on average 244.33333333333334) internal successors, (1466), 6 states have internal predecessors, (1466), 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) [2025-04-29 11:09:12,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:12,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 299 [2025-04-29 11:09:12,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:13,029 INFO L116 PetriNetUnfolderBase]: 258/1936 cut-off events. [2025-04-29 11:09:13,029 INFO L117 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2025-04-29 11:09:13,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2739 conditions, 1936 events. 258/1936 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10117 event pairs, 34 based on Foata normal form. 0/1810 useless extension candidates. Maximal degree in co-relation 2526. Up to 491 conditions per place. [2025-04-29 11:09:13,034 INFO L140 encePairwiseOnDemand]: 276/299 looper letters, 67 selfloop transitions, 70 changer transitions 0/401 dead transitions. [2025-04-29 11:09:13,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 401 transitions, 1330 flow [2025-04-29 11:09:13,035 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1566 transitions. [2025-04-29 11:09:13,036 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8729096989966555 [2025-04-29 11:09:13,036 INFO L175 Difference]: Start difference. First operand has 346 places, 323 transitions, 900 flow. Second operand 6 states and 1566 transitions. [2025-04-29 11:09:13,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 401 transitions, 1330 flow [2025-04-29 11:09:13,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 401 transitions, 1324 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-04-29 11:09:13,041 INFO L231 Difference]: Finished difference. Result has 355 places, 392 transitions, 1356 flow [2025-04-29 11:09:13,041 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1356, PETRI_PLACES=355, PETRI_TRANSITIONS=392} [2025-04-29 11:09:13,041 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 57 predicate places. [2025-04-29 11:09:13,042 INFO L485 AbstractCegarLoop]: Abstraction has has 355 places, 392 transitions, 1356 flow [2025-04-29 11:09:13,042 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.33333333333334) internal successors, (1466), 6 states have internal predecessors, (1466), 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) [2025-04-29 11:09:13,042 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:13,042 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:13,043 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-04-29 11:09:13,043 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:13,043 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:13,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1784113988, now seen corresponding path program 1 times [2025-04-29 11:09:13,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:13,044 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921920960] [2025-04-29 11:09:13,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:13,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-04-29 11:09:13,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-04-29 11:09:13,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:13,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2025-04-29 11:09:13,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:13,399 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921920960] [2025-04-29 11:09:13,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921920960] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:13,399 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433069938] [2025-04-29 11:09:13,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:13,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:13,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:13,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:13,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-29 11:09:13,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-04-29 11:09:13,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-04-29 11:09:13,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:13,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:13,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-29 11:09:13,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2025-04-29 11:09:14,018 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:09:14,327 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2025-04-29 11:09:14,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433069938] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:09:14,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:09:14,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-04-29 11:09:14,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628317531] [2025-04-29 11:09:14,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:09:14,329 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-29 11:09:14,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:14,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-29 11:09:14,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:09:14,537 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 299 [2025-04-29 11:09:14,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 392 transitions, 1356 flow. Second operand has 18 states, 18 states have (on average 285.0) internal successors, (5130), 18 states have internal predecessors, (5130), 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) [2025-04-29 11:09:14,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:14,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 299 [2025-04-29 11:09:14,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:14,959 INFO L116 PetriNetUnfolderBase]: 121/2012 cut-off events. [2025-04-29 11:09:14,959 INFO L117 PetriNetUnfolderBase]: For 309/329 co-relation queries the response was YES. [2025-04-29 11:09:14,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 2012 events. 121/2012 cut-off events. For 309/329 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7257 event pairs, 21 based on Foata normal form. 4/1929 useless extension candidates. Maximal degree in co-relation 2597. Up to 206 conditions per place. [2025-04-29 11:09:14,966 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 19 selfloop transitions, 21 changer transitions 0/410 dead transitions. [2025-04-29 11:09:14,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 410 transitions, 1524 flow [2025-04-29 11:09:14,968 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-29 11:09:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-04-29 11:09:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5986 transitions. [2025-04-29 11:09:14,971 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9533365185539099 [2025-04-29 11:09:14,971 INFO L175 Difference]: Start difference. First operand has 355 places, 392 transitions, 1356 flow. Second operand 21 states and 5986 transitions. [2025-04-29 11:09:14,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 410 transitions, 1524 flow [2025-04-29 11:09:14,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 410 transitions, 1524 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:09:14,977 INFO L231 Difference]: Finished difference. Result has 380 places, 405 transitions, 1486 flow [2025-04-29 11:09:14,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=1356, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1486, PETRI_PLACES=380, PETRI_TRANSITIONS=405} [2025-04-29 11:09:14,979 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 82 predicate places. [2025-04-29 11:09:14,979 INFO L485 AbstractCegarLoop]: Abstraction has has 380 places, 405 transitions, 1486 flow [2025-04-29 11:09:14,984 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 285.0) internal successors, (5130), 18 states have internal predecessors, (5130), 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) [2025-04-29 11:09:14,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:14,985 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:14,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-29 11:09:15,189 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-04-29 11:09:15,189 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:15,191 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:15,191 INFO L85 PathProgramCache]: Analyzing trace with hash 289473220, now seen corresponding path program 2 times [2025-04-29 11:09:15,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:15,191 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846700950] [2025-04-29 11:09:15,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:09:15,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:15,276 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 851 statements into 2 equivalence classes. [2025-04-29 11:09:15,279 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 66 of 851 statements. [2025-04-29 11:09:15,280 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:09:15,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3819 trivial. 0 not checked. [2025-04-29 11:09:15,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:15,398 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846700950] [2025-04-29 11:09:15,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846700950] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:15,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:15,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:15,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137360128] [2025-04-29 11:09:15,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:15,399 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:15,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:15,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:15,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:15,745 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 299 [2025-04-29 11:09:15,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 405 transitions, 1486 flow. Second operand has 6 states, 6 states have (on average 244.16666666666666) internal successors, (1465), 6 states have internal predecessors, (1465), 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) [2025-04-29 11:09:15,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:15,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 299 [2025-04-29 11:09:15,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:16,377 INFO L116 PetriNetUnfolderBase]: 501/3081 cut-off events. [2025-04-29 11:09:16,377 INFO L117 PetriNetUnfolderBase]: For 982/1056 co-relation queries the response was YES. [2025-04-29 11:09:16,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5482 conditions, 3081 events. 501/3081 cut-off events. For 982/1056 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16061 event pairs, 92 based on Foata normal form. 16/2940 useless extension candidates. Maximal degree in co-relation 5260. Up to 981 conditions per place. [2025-04-29 11:09:16,386 INFO L140 encePairwiseOnDemand]: 276/299 looper letters, 131 selfloop transitions, 130 changer transitions 0/542 dead transitions. [2025-04-29 11:09:16,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 542 transitions, 2658 flow [2025-04-29 11:09:16,386 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:16,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:16,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1565 transitions. [2025-04-29 11:09:16,387 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8723522853957637 [2025-04-29 11:09:16,387 INFO L175 Difference]: Start difference. First operand has 380 places, 405 transitions, 1486 flow. Second operand 6 states and 1565 transitions. [2025-04-29 11:09:16,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 542 transitions, 2658 flow [2025-04-29 11:09:16,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 542 transitions, 2634 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-04-29 11:09:16,397 INFO L231 Difference]: Finished difference. Result has 384 places, 534 transitions, 2690 flow [2025-04-29 11:09:16,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=1462, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2690, PETRI_PLACES=384, PETRI_TRANSITIONS=534} [2025-04-29 11:09:16,397 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 86 predicate places. [2025-04-29 11:09:16,397 INFO L485 AbstractCegarLoop]: Abstraction has has 384 places, 534 transitions, 2690 flow [2025-04-29 11:09:16,398 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.16666666666666) internal successors, (1465), 6 states have internal predecessors, (1465), 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) [2025-04-29 11:09:16,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:16,398 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:16,398 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-04-29 11:09:16,398 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:16,400 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:16,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2052351367, now seen corresponding path program 1 times [2025-04-29 11:09:16,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:16,401 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372351999] [2025-04-29 11:09:16,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:16,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:16,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 861 statements into 1 equivalence classes. [2025-04-29 11:09:16,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 861 of 861 statements. [2025-04-29 11:09:16,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:16,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 3388 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2025-04-29 11:09:17,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:17,595 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372351999] [2025-04-29 11:09:17,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372351999] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:17,595 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745278832] [2025-04-29 11:09:17,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:17,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:17,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:17,597 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:17,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-29 11:09:17,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 861 statements into 1 equivalence classes. [2025-04-29 11:09:18,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 861 of 861 statements. [2025-04-29 11:09:18,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:18,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:18,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 3261 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-29 11:09:18,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 3388 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2025-04-29 11:09:18,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:09:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 3388 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2025-04-29 11:09:19,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745278832] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:09:19,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:09:19,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-04-29 11:09:19,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99485169] [2025-04-29 11:09:19,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:09:19,315 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-29 11:09:19,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:19,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-29 11:09:19,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-04-29 11:09:19,536 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 299 [2025-04-29 11:09:19,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 534 transitions, 2690 flow. Second operand has 23 states, 23 states have (on average 285.0869565217391) internal successors, (6557), 23 states have internal predecessors, (6557), 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) [2025-04-29 11:09:19,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:19,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 299 [2025-04-29 11:09:19,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:20,441 INFO L116 PetriNetUnfolderBase]: 382/3092 cut-off events. [2025-04-29 11:09:20,441 INFO L117 PetriNetUnfolderBase]: For 1293/1335 co-relation queries the response was YES. [2025-04-29 11:09:20,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5387 conditions, 3092 events. 382/3092 cut-off events. For 1293/1335 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13230 event pairs, 37 based on Foata normal form. 7/2991 useless extension candidates. Maximal degree in co-relation 5160. Up to 467 conditions per place. [2025-04-29 11:09:20,453 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 22 selfloop transitions, 30 changer transitions 0/551 dead transitions. [2025-04-29 11:09:20,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 551 transitions, 2916 flow [2025-04-29 11:09:20,453 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-29 11:09:20,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-04-29 11:09:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8544 transitions. [2025-04-29 11:09:20,459 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9525083612040134 [2025-04-29 11:09:20,459 INFO L175 Difference]: Start difference. First operand has 384 places, 534 transitions, 2690 flow. Second operand 30 states and 8544 transitions. [2025-04-29 11:09:20,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 551 transitions, 2916 flow [2025-04-29 11:09:20,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 551 transitions, 2916 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:09:20,473 INFO L231 Difference]: Finished difference. Result has 417 places, 544 transitions, 2842 flow [2025-04-29 11:09:20,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=2690, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2842, PETRI_PLACES=417, PETRI_TRANSITIONS=544} [2025-04-29 11:09:20,474 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 119 predicate places. [2025-04-29 11:09:20,474 INFO L485 AbstractCegarLoop]: Abstraction has has 417 places, 544 transitions, 2842 flow [2025-04-29 11:09:20,476 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 285.0869565217391) internal successors, (6557), 23 states have internal predecessors, (6557), 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) [2025-04-29 11:09:20,476 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:20,476 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:20,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-29 11:09:20,676 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-04-29 11:09:20,677 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:20,679 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:20,680 INFO L85 PathProgramCache]: Analyzing trace with hash 577448103, now seen corresponding path program 2 times [2025-04-29 11:09:20,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:20,680 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060735318] [2025-04-29 11:09:20,680 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:09:20,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:20,817 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1176 statements into 2 equivalence classes. [2025-04-29 11:09:20,820 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 76 of 1176 statements. [2025-04-29 11:09:20,821 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:09:20,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7770 trivial. 0 not checked. [2025-04-29 11:09:20,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:20,969 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060735318] [2025-04-29 11:09:20,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060735318] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:20,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:20,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:20,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525134052] [2025-04-29 11:09:20,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:20,971 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:20,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:20,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:20,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:21,243 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 299 [2025-04-29 11:09:21,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 544 transitions, 2842 flow. Second operand has 6 states, 6 states have (on average 244.33333333333334) internal successors, (1466), 6 states have internal predecessors, (1466), 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) [2025-04-29 11:09:21,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:21,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 299 [2025-04-29 11:09:21,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:22,186 INFO L116 PetriNetUnfolderBase]: 777/4167 cut-off events. [2025-04-29 11:09:22,186 INFO L117 PetriNetUnfolderBase]: For 3426/3617 co-relation queries the response was YES. [2025-04-29 11:09:22,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8834 conditions, 4167 events. 777/4167 cut-off events. For 3426/3617 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22302 event pairs, 65 based on Foata normal form. 52/4054 useless extension candidates. Maximal degree in co-relation 8603. Up to 1323 conditions per place. [2025-04-29 11:09:22,203 INFO L140 encePairwiseOnDemand]: 276/299 looper letters, 251 selfloop transitions, 131 changer transitions 5/682 dead transitions. [2025-04-29 11:09:22,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 682 transitions, 4516 flow [2025-04-29 11:09:22,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:22,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:22,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1566 transitions. [2025-04-29 11:09:22,204 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8729096989966555 [2025-04-29 11:09:22,204 INFO L175 Difference]: Start difference. First operand has 417 places, 544 transitions, 2842 flow. Second operand 6 states and 1566 transitions. [2025-04-29 11:09:22,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 682 transitions, 4516 flow [2025-04-29 11:09:22,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 682 transitions, 4470 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-04-29 11:09:22,217 INFO L231 Difference]: Finished difference. Result has 409 places, 672 transitions, 4276 flow [2025-04-29 11:09:22,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=2796, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4276, PETRI_PLACES=409, PETRI_TRANSITIONS=672} [2025-04-29 11:09:22,218 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 111 predicate places. [2025-04-29 11:09:22,218 INFO L485 AbstractCegarLoop]: Abstraction has has 409 places, 672 transitions, 4276 flow [2025-04-29 11:09:22,218 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.33333333333334) internal successors, (1466), 6 states have internal predecessors, (1466), 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) [2025-04-29 11:09:22,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:22,218 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:22,218 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-04-29 11:09:22,218 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:22,221 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash 714998164, now seen corresponding path program 1 times [2025-04-29 11:09:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:22,222 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339740325] [2025-04-29 11:09:22,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:22,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1177 statements into 1 equivalence classes. [2025-04-29 11:09:22,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1177 of 1177 statements. [2025-04-29 11:09:22,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:22,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7770 trivial. 0 not checked. [2025-04-29 11:09:24,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:24,985 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339740325] [2025-04-29 11:09:24,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339740325] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:09:24,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:09:24,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:09:24,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028155973] [2025-04-29 11:09:24,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:09:24,986 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:09:24,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:09:24,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:09:24,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:09:25,178 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 299 [2025-04-29 11:09:25,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 672 transitions, 4276 flow. Second operand has 6 states, 6 states have (on average 224.66666666666666) internal successors, (1348), 6 states have internal predecessors, (1348), 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) [2025-04-29 11:09:25,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:09:25,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 299 [2025-04-29 11:09:25,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:09:26,921 INFO L116 PetriNetUnfolderBase]: 1309/5565 cut-off events. [2025-04-29 11:09:26,922 INFO L117 PetriNetUnfolderBase]: For 4999/5056 co-relation queries the response was YES. [2025-04-29 11:09:26,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13581 conditions, 5565 events. 1309/5565 cut-off events. For 4999/5056 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33811 event pairs, 369 based on Foata normal form. 11/5331 useless extension candidates. Maximal degree in co-relation 13346. Up to 2549 conditions per place. [2025-04-29 11:09:26,945 INFO L140 encePairwiseOnDemand]: 280/299 looper letters, 316 selfloop transitions, 84 changer transitions 0/751 dead transitions. [2025-04-29 11:09:26,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 751 transitions, 5474 flow [2025-04-29 11:09:26,946 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:09:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:09:26,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1444 transitions. [2025-04-29 11:09:26,947 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8049052396878483 [2025-04-29 11:09:26,947 INFO L175 Difference]: Start difference. First operand has 409 places, 672 transitions, 4276 flow. Second operand 6 states and 1444 transitions. [2025-04-29 11:09:26,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 751 transitions, 5474 flow [2025-04-29 11:09:26,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 751 transitions, 5220 flow, removed 127 selfloop flow, removed 0 redundant places. [2025-04-29 11:09:26,967 INFO L231 Difference]: Finished difference. Result has 418 places, 743 transitions, 4812 flow [2025-04-29 11:09:26,968 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=4028, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4812, PETRI_PLACES=418, PETRI_TRANSITIONS=743} [2025-04-29 11:09:26,968 INFO L279 CegarLoopForPetriNet]: 298 programPoint places, 120 predicate places. [2025-04-29 11:09:26,968 INFO L485 AbstractCegarLoop]: Abstraction has has 418 places, 743 transitions, 4812 flow [2025-04-29 11:09:26,968 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.66666666666666) internal successors, (1348), 6 states have internal predecessors, (1348), 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) [2025-04-29 11:09:26,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:09:26,969 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:09:26,969 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-04-29 11:09:26,969 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2025-04-29 11:09:26,972 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:09:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1735116154, now seen corresponding path program 1 times [2025-04-29 11:09:26,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:09:26,972 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116272309] [2025-04-29 11:09:26,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:26,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:09:27,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1183 statements into 1 equivalence classes. [2025-04-29 11:09:29,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1183 of 1183 statements. [2025-04-29 11:09:29,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:29,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:46,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 599 proven. 5212 refuted. 0 times theorem prover too weak. 1959 trivial. 0 not checked. [2025-04-29 11:09:46,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:09:46,121 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116272309] [2025-04-29 11:09:46,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116272309] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:09:46,121 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001246869] [2025-04-29 11:09:46,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:09:46,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:09:46,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:09:46,123 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:09:46,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-29 11:09:46,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1183 statements into 1 equivalence classes. [2025-04-29 11:09:47,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1183 of 1183 statements. [2025-04-29 11:09:47,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:09:47,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:09:47,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 4530 conjuncts, 121 conjuncts are in the unsatisfiable core [2025-04-29 11:09:47,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:09:47,847 INFO L325 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-04-29 11:09:47,847 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2025-04-29 11:09:48,224 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:48,224 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:49,013 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:49,014 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:49,463 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-04-29 11:09:49,635 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:49,636 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:49,760 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2025-04-29 11:09:49,856 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2025-04-29 11:09:50,094 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2025-04-29 11:09:50,585 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:50,585 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:50,860 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:50,860 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:51,355 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:51,356 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:51,599 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:51,599 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:52,058 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:52,058 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:52,325 INFO L325 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2025-04-29 11:09:52,325 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2025-04-29 11:09:52,778 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:52,778 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:53,090 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:53,090 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:53,582 INFO L325 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-04-29 11:09:53,582 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-04-29 11:09:53,805 INFO L325 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2025-04-29 11:09:53,805 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2025-04-29 11:09:54,292 INFO L325 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2025-04-29 11:09:54,293 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2025-04-29 11:09:54,731 INFO L325 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2025-04-29 11:09:54,731 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2025-04-29 11:09:55,457 INFO L325 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2025-04-29 11:09:55,458 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2025-04-29 11:09:55,921 INFO L325 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2025-04-29 11:09:55,921 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2025-04-29 11:09:56,637 INFO L325 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2025-04-29 11:09:56,637 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2025-04-29 11:09:57,132 INFO L325 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2025-04-29 11:09:57,132 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 Killed by 15