./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 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 ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:21:44,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:21:44,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:21:44,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:21:44,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:21:44,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:21:44,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:21:44,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:21:44,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:21:44,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:21:44,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:21:44,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:21:44,401 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:21:44,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:21:44,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:21:44,401 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:21:44,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:21:44,402 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:21:44,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:21:44,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:21:44,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:21:44,403 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 -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2025-03-13 22:21:44,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:21:44,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:21:44,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:21:44,623 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:21:44,623 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:21:44,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-03-13 22:21:45,883 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea3319a7/928cd0443b0d485e9c185398e1bf002a/FLAGb9c7b6462 [2025-03-13 22:21:46,161 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:21:46,162 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-03-13 22:21:46,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea3319a7/928cd0443b0d485e9c185398e1bf002a/FLAGb9c7b6462 [2025-03-13 22:21:46,457 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea3319a7/928cd0443b0d485e9c185398e1bf002a [2025-03-13 22:21:46,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:21:46,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:21:46,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:21:46,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:21:46,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:21:46,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47862c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46, skipping insertion in model container [2025-03-13 22:21:46,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:21:46,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:21:46,778 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:21:46,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:21:46,878 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:21:46,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46 WrapperNode [2025-03-13 22:21:46,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:21:46,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:21:46,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:21:46,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:21:46,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,956 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 541 [2025-03-13 22:21:46,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:21:46,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:21:46,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:21:46,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:21:46,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:46,997 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:47,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:47,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:47,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:47,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:21:47,018 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:21:47,018 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:21:47,018 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:21:47,019 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (1/1) ... [2025-03-13 22:21:47,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:21:47,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:21:47,050 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) [2025-03-13 22:21:47,053 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 [2025-03-13 22:21:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-13 22:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-13 22:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-13 22:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-13 22:21:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-13 22:21:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-13 22:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-13 22:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2025-03-13 22:21:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2025-03-13 22:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:21:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:21:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:21:47,076 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:21:47,207 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:21:47,209 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:21:47,916 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-13 22:21:47,917 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-03-13 22:21:47,917 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-13 22:21:47,917 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-03-13 22:21:47,917 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2025-03-13 22:21:47,917 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2025-03-13 22:21:47,918 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:21:47,919 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:21:47,919 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:21:47,967 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:21:47,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:21:47 BoogieIcfgContainer [2025-03-13 22:21:47,967 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:21:47,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:21:47,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:21:47,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:21:47,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:21:46" (1/3) ... [2025-03-13 22:21:47,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbcf98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:21:47, skipping insertion in model container [2025-03-13 22:21:47,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:21:46" (2/3) ... [2025-03-13 22:21:47,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbcf98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:21:47, skipping insertion in model container [2025-03-13 22:21:47,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:21:47" (3/3) ... [2025-03-13 22:21:47,976 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2025-03-13 22:21:47,988 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:21:47,989 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_85-list2_racefree.i that has 4 procedures, 558 locations, 1 initial locations, 16 loop locations, and 37 error locations. [2025-03-13 22:21:47,990 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:21:48,141 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2025-03-13 22:21:48,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 567 places, 602 transitions, 1243 flow [2025-03-13 22:21:48,635 INFO L124 PetriNetUnfolderBase]: 133/1743 cut-off events. [2025-03-13 22:21:48,637 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-13 22:21:48,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1797 conditions, 1743 events. 133/1743 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 12474 event pairs, 0 based on Foata normal form. 0/1498 useless extension candidates. Maximal degree in co-relation 890. Up to 16 conditions per place. [2025-03-13 22:21:48,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 567 places, 602 transitions, 1243 flow [2025-03-13 22:21:48,686 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 567 places, 602 transitions, 1243 flow [2025-03-13 22:21:48,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:21:48,708 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7852979e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:21:48,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-03-13 22:21:48,715 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:21:48,715 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2025-03-13 22:21:48,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:21:48,716 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:21:48,716 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] [2025-03-13 22:21:48,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-13 22:21:48,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:21:48,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1590950744, now seen corresponding path program 1 times [2025-03-13 22:21:48,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:21:48,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067723366] [2025-03-13 22:21:48,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:21:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:21:48,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-13 22:21:48,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-13 22:21:48,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:21:48,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:21:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:21:48,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:21:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067723366] [2025-03-13 22:21:48,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067723366] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:21:48,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:21:48,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:21:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639327996] [2025-03-13 22:21:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:21:48,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:21:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:21:48,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:21:48,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:21:49,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 530 out of 602 [2025-03-13 22:21:49,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 602 transitions, 1243 flow. Second operand has 3 states, 3 states have (on average 531.3333333333334) internal successors, (1594), 3 states have internal predecessors, (1594), 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) [2025-03-13 22:21:49,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:21:49,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 530 of 602 [2025-03-13 22:21:49,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:21:54,668 INFO L124 PetriNetUnfolderBase]: 5033/33980 cut-off events. [2025-03-13 22:21:54,668 INFO L125 PetriNetUnfolderBase]: For 2744/2744 co-relation queries the response was YES. [2025-03-13 22:21:54,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41629 conditions, 33980 events. 5033/33980 cut-off events. For 2744/2744 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 468511 event pairs, 4102 based on Foata normal form. 3090/34090 useless extension candidates. Maximal degree in co-relation 27727. Up to 6610 conditions per place. [2025-03-13 22:21:55,038 INFO L140 encePairwiseOnDemand]: 573/602 looper letters, 41 selfloop transitions, 2 changer transitions 0/571 dead transitions. [2025-03-13 22:21:55,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 571 transitions, 1267 flow [2025-03-13 22:21:55,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:21:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:21:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1660 transitions. [2025-03-13 22:21:55,057 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9191583610188261 [2025-03-13 22:21:55,058 INFO L175 Difference]: Start difference. First operand has 567 places, 602 transitions, 1243 flow. Second operand 3 states and 1660 transitions. [2025-03-13 22:21:55,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 571 transitions, 1267 flow [2025-03-13 22:21:55,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 571 transitions, 1267 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:21:55,081 INFO L231 Difference]: Finished difference. Result has 564 places, 571 transitions, 1185 flow [2025-03-13 22:21:55,084 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1185, PETRI_PLACES=564, PETRI_TRANSITIONS=571} [2025-03-13 22:21:55,087 INFO L279 CegarLoopForPetriNet]: 567 programPoint places, -3 predicate places. [2025-03-13 22:21:55,089 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 571 transitions, 1185 flow [2025-03-13 22:21:55,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 531.3333333333334) internal successors, (1594), 3 states have internal predecessors, (1594), 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) [2025-03-13 22:21:55,090 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:21:55,090 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] [2025-03-13 22:21:55,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:21:55,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-13 22:21:55,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:21:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1799083172, now seen corresponding path program 1 times [2025-03-13 22:21:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:21:55,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598778865] [2025-03-13 22:21:55,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:21:55,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:21:55,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-13 22:21:55,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-13 22:21:55,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:21:55,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:21:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:21:55,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:21:55,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598778865] [2025-03-13 22:21:55,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598778865] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:21:55,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:21:55,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:21:55,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990630425] [2025-03-13 22:21:55,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:21:55,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:21:55,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:21:55,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:21:55,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:21:55,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 530 out of 602 [2025-03-13 22:21:55,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 571 transitions, 1185 flow. Second operand has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 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) [2025-03-13 22:21:55,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:21:55,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 530 of 602 [2025-03-13 22:21:55,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:22:00,296 INFO L124 PetriNetUnfolderBase]: 3685/30858 cut-off events. [2025-03-13 22:22:00,296 INFO L125 PetriNetUnfolderBase]: For 3377/3377 co-relation queries the response was YES. [2025-03-13 22:22:00,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37190 conditions, 30858 events. 3685/30858 cut-off events. For 3377/3377 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 413960 event pairs, 2942 based on Foata normal form. 0/27985 useless extension candidates. Maximal degree in co-relation 37136. Up to 5046 conditions per place. [2025-03-13 22:22:00,628 INFO L140 encePairwiseOnDemand]: 598/602 looper letters, 40 selfloop transitions, 1 changer transitions 0/568 dead transitions. [2025-03-13 22:22:00,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 568 transitions, 1261 flow [2025-03-13 22:22:00,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:22:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:22:00,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1634 transitions. [2025-03-13 22:22:00,631 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2025-03-13 22:22:00,631 INFO L175 Difference]: Start difference. First operand has 564 places, 571 transitions, 1185 flow. Second operand 3 states and 1634 transitions. [2025-03-13 22:22:00,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 568 transitions, 1261 flow [2025-03-13 22:22:00,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 568 transitions, 1257 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:22:00,663 INFO L231 Difference]: Finished difference. Result has 561 places, 568 transitions, 1177 flow [2025-03-13 22:22:00,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=1175, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1177, PETRI_PLACES=561, PETRI_TRANSITIONS=568} [2025-03-13 22:22:00,665 INFO L279 CegarLoopForPetriNet]: 567 programPoint places, -6 predicate places. [2025-03-13 22:22:00,665 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 568 transitions, 1177 flow [2025-03-13 22:22:00,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 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) [2025-03-13 22:22:00,666 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:22:00,666 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] [2025-03-13 22:22:00,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:22:00,667 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-13 22:22:00,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:22:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1381828936, now seen corresponding path program 1 times [2025-03-13 22:22:00,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:22:00,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213775576] [2025-03-13 22:22:00,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:22:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:22:00,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-13 22:22:00,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-13 22:22:00,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:22:00,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:22:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:22:01,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:22:01,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213775576] [2025-03-13 22:22:01,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213775576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:22:01,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:22:01,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:22:01,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320160656] [2025-03-13 22:22:01,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:22:01,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:22:01,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:22:01,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:22:01,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:22:01,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 602 [2025-03-13 22:22:01,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 568 transitions, 1177 flow. Second operand has 6 states, 6 states have (on average 419.3333333333333) internal successors, (2516), 6 states have internal predecessors, (2516), 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) [2025-03-13 22:22:01,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:22:01,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 602 [2025-03-13 22:22:01,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand