./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:27:05,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:27:05,746 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:27:05,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:27:05,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:27:05,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:27:05,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:27:05,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:27:05,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:27:05,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:27:05,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:27:05,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:27:05,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:27:05,766 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:27:05,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:27:05,766 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2025-02-06 09:27:05,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:27:05,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:27:05,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:27:05,966 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:27:05,966 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:27:05,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-02-06 09:27:07,106 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a7696f6e/9892d5adcc9b43e2800ed4e8c214d820/FLAG8dfaeca08 [2025-02-06 09:27:07,477 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:27:07,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-02-06 09:27:07,491 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a7696f6e/9892d5adcc9b43e2800ed4e8c214d820/FLAG8dfaeca08 [2025-02-06 09:27:07,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a7696f6e/9892d5adcc9b43e2800ed4e8c214d820 [2025-02-06 09:27:07,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:27:07,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:27:07,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:27:07,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:27:07,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:27:07,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a1d0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:07, skipping insertion in model container [2025-02-06 09:27:07,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:27:07" (1/1) ... [2025-02-06 09:27:07,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:27:08,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:27:08,061 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:27:08,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:27:08,133 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:27:08,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08 WrapperNode [2025-02-06 09:27:08,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:27:08,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:27:08,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:27:08,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:27:08,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,181 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 541 [2025-02-06 09:27:08,182 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:27:08,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:27:08,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:27:08,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:27:08,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,222 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:27:08,238 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:27:08,238 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:27:08,238 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:27:08,239 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (1/1) ... [2025-02-06 09:27:08,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:27:08,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:27:08,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:27:08,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:27:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:27:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 09:27:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-06 09:27:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-06 09:27:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:27:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:27:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:27:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-06 09:27:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-06 09:27:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:27:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:27:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:27:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:27:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 09:27:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2025-02-06 09:27:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2025-02-06 09:27:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:27:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:27:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:27:08,295 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:27:08,447 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:27:08,449 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:27:09,055 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-06 09:27:09,056 INFO L1309 $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 [2025-02-06 09:27:09,056 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-06 09:27:09,056 INFO L1309 $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 [2025-02-06 09:27:09,056 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2025-02-06 09:27:09,056 INFO L1309 $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 [2025-02-06 09:27:09,057 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:27:09,057 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:27:09,085 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:27:09,086 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:27:09,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:27:09 BoogieIcfgContainer [2025-02-06 09:27:09,086 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:27:09,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:27:09,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:27:09,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:27:09,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:27:07" (1/3) ... [2025-02-06 09:27:09,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b11b681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:27:09, skipping insertion in model container [2025-02-06 09:27:09,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:27:08" (2/3) ... [2025-02-06 09:27:09,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b11b681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:27:09, skipping insertion in model container [2025-02-06 09:27:09,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:27:09" (3/3) ... [2025-02-06 09:27:09,093 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2025-02-06 09:27:09,102 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:27:09,104 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_85-list2_racefree.i that has 4 procedures, 568 locations, 1 initial locations, 18 loop locations, and 37 error locations. [2025-02-06 09:27:09,104 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:27:09,206 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2025-02-06 09:27:09,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 577 places, 612 transitions, 1263 flow [2025-02-06 09:27:09,597 INFO L124 PetriNetUnfolderBase]: 133/1773 cut-off events. [2025-02-06 09:27:09,599 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-02-06 09:27:09,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 1773 events. 133/1773 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 12735 event pairs, 0 based on Foata normal form. 0/1528 useless extension candidates. Maximal degree in co-relation 905. Up to 16 conditions per place. [2025-02-06 09:27:09,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 577 places, 612 transitions, 1263 flow [2025-02-06 09:27:09,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 577 places, 612 transitions, 1263 flow [2025-02-06 09:27:09,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:27:09,666 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;@74f58674, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:27:09,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-02-06 09:27:09,672 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:27:09,672 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2025-02-06 09:27:09,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:27:09,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:09,672 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] [2025-02-06 09:27:09,673 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-02-06 09:27:09,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:09,698 INFO L85 PathProgramCache]: Analyzing trace with hash 832906408, now seen corresponding path program 1 times [2025-02-06 09:27:09,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:09,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558029328] [2025-02-06 09:27:09,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:09,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:09,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 09:27:09,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 09:27:09,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:09,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:09,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558029328] [2025-02-06 09:27:09,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558029328] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:09,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:09,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:27:09,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899156751] [2025-02-06 09:27:09,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:09,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:27:09,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:09,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:27:09,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:27:09,925 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 612 [2025-02-06 09:27:09,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 612 transitions, 1263 flow. Second operand has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:09,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:09,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 612 [2025-02-06 09:27:09,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:15,475 INFO L124 PetriNetUnfolderBase]: 5033/34975 cut-off events. [2025-02-06 09:27:15,476 INFO L125 PetriNetUnfolderBase]: For 2744/2744 co-relation queries the response was YES. [2025-02-06 09:27:15,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42624 conditions, 34975 events. 5033/34975 cut-off events. For 2744/2744 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 484410 event pairs, 4102 based on Foata normal form. 4466/36461 useless extension candidates. Maximal degree in co-relation 28367. Up to 6610 conditions per place. [2025-02-06 09:27:15,774 INFO L140 encePairwiseOnDemand]: 583/612 looper letters, 41 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2025-02-06 09:27:15,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 581 transitions, 1287 flow [2025-02-06 09:27:15,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:27:15,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:27:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1690 transitions. [2025-02-06 09:27:15,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.920479302832244 [2025-02-06 09:27:15,786 INFO L175 Difference]: Start difference. First operand has 577 places, 612 transitions, 1263 flow. Second operand 3 states and 1690 transitions. [2025-02-06 09:27:15,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 581 transitions, 1287 flow [2025-02-06 09:27:15,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 581 transitions, 1287 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:27:15,800 INFO L231 Difference]: Finished difference. Result has 574 places, 581 transitions, 1205 flow [2025-02-06 09:27:15,802 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=612, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1205, PETRI_PLACES=574, PETRI_TRANSITIONS=581} [2025-02-06 09:27:15,805 INFO L279 CegarLoopForPetriNet]: 577 programPoint places, -3 predicate places. [2025-02-06 09:27:15,805 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 581 transitions, 1205 flow [2025-02-06 09:27:15,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:15,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:15,806 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] [2025-02-06 09:27:15,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:27:15,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-02-06 09:27:15,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash -582718586, now seen corresponding path program 1 times [2025-02-06 09:27:15,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:15,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134024764] [2025-02-06 09:27:15,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:15,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:15,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-06 09:27:15,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-06 09:27:15,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:15,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:15,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:15,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134024764] [2025-02-06 09:27:15,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134024764] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:15,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:15,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:27:15,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515163334] [2025-02-06 09:27:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:15,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:27:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:15,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:27:15,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:27:15,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 612 [2025-02-06 09:27:15,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 581 transitions, 1205 flow. Second operand has 3 states, 3 states have (on average 541.0) internal successors, (1623), 3 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:15,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:15,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 612 [2025-02-06 09:27:15,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:27:20,798 INFO L124 PetriNetUnfolderBase]: 3685/31113 cut-off events. [2025-02-06 09:27:20,798 INFO L125 PetriNetUnfolderBase]: For 3377/3377 co-relation queries the response was YES. [2025-02-06 09:27:21,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37445 conditions, 31113 events. 3685/31113 cut-off events. For 3377/3377 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 417197 event pairs, 2942 based on Foata normal form. 0/28236 useless extension candidates. Maximal degree in co-relation 37391. Up to 5046 conditions per place. [2025-02-06 09:27:21,134 INFO L140 encePairwiseOnDemand]: 608/612 looper letters, 40 selfloop transitions, 1 changer transitions 0/578 dead transitions. [2025-02-06 09:27:21,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 578 transitions, 1281 flow [2025-02-06 09:27:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:27:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:27:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2025-02-06 09:27:21,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.906318082788671 [2025-02-06 09:27:21,138 INFO L175 Difference]: Start difference. First operand has 574 places, 581 transitions, 1205 flow. Second operand 3 states and 1664 transitions. [2025-02-06 09:27:21,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 578 transitions, 1281 flow [2025-02-06 09:27:21,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 578 transitions, 1277 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:27:21,162 INFO L231 Difference]: Finished difference. Result has 571 places, 578 transitions, 1197 flow [2025-02-06 09:27:21,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=612, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1197, PETRI_PLACES=571, PETRI_TRANSITIONS=578} [2025-02-06 09:27:21,164 INFO L279 CegarLoopForPetriNet]: 577 programPoint places, -6 predicate places. [2025-02-06 09:27:21,164 INFO L471 AbstractCegarLoop]: Abstraction has has 571 places, 578 transitions, 1197 flow [2025-02-06 09:27:21,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.0) internal successors, (1623), 3 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:21,166 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:27:21,166 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] [2025-02-06 09:27:21,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:27:21,166 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-02-06 09:27:21,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:27:21,167 INFO L85 PathProgramCache]: Analyzing trace with hash 217406881, now seen corresponding path program 1 times [2025-02-06 09:27:21,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:27:21,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893166916] [2025-02-06 09:27:21,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:27:21,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:27:21,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-06 09:27:21,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-06 09:27:21,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:27:21,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:27:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:27:21,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:27:21,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893166916] [2025-02-06 09:27:21,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893166916] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:27:21,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:27:21,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:27:21,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238103688] [2025-02-06 09:27:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:27:21,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:27:21,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:27:21,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:27:21,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:27:22,521 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 612 [2025-02-06 09:27:22,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 571 places, 578 transitions, 1197 flow. Second operand has 6 states, 6 states have (on average 429.3333333333333) internal successors, (2576), 6 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:27:22,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:27:22,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 612 [2025-02-06 09:27:22,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand