./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/weaver/chl-array-int-symm.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a0558934008acf79b7e5b205fa256c568a1b783af274566f36b253458639325 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:11:43,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:11:43,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:11:43,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:11:43,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:11:43,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:11:43,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:11:43,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:11:43,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:11:43,231 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:11:43,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:11:43,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:11:43,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:11:43,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:11:43,232 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:11:43,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:11:43,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:11:43,234 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:11:43,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:11:43,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:11:43,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:11:43,235 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 ! call(reach_error())) ) 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 -> 8a0558934008acf79b7e5b205fa256c568a1b783af274566f36b253458639325 [2025-02-08 01:11:43,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:11:43,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:11:43,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:11:43,466 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:11:43,466 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:11:43,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2025-02-08 01:11:44,646 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/274e41ca0/a4d25ee1a43d4b78a3f85610a3704698/FLAG42084f541 [2025-02-08 01:11:44,860 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:11:44,860 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2025-02-08 01:11:44,866 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/274e41ca0/a4d25ee1a43d4b78a3f85610a3704698/FLAG42084f541 [2025-02-08 01:11:44,879 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/274e41ca0/a4d25ee1a43d4b78a3f85610a3704698 [2025-02-08 01:11:44,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:11:44,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:11:44,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:11:44,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:11:44,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:11:44,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:11:44" (1/1) ... [2025-02-08 01:11:44,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7973a023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:44, skipping insertion in model container [2025-02-08 01:11:44,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:11:44" (1/1) ... [2025-02-08 01:11:44,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:11:45,017 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2508,2521] [2025-02-08 01:11:45,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:11:45,029 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:11:45,049 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2508,2521] [2025-02-08 01:11:45,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:11:45,063 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:11:45,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45 WrapperNode [2025-02-08 01:11:45,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:11:45,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:11:45,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:11:45,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:11:45,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,088 INFO L138 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 181 [2025-02-08 01:11:45,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:11:45,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:11:45,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:11:45,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:11:45,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,104 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-02-08 01:11:45,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,109 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:11:45,112 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:11:45,112 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:11:45,112 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:11:45,113 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (1/1) ... [2025-02-08 01:11:45,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:11:45,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:11:45,136 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) [2025-02-08 01:11:45,142 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 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 01:11:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 01:11:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:11:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:11:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:11:45,156 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:11:45,225 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:11:45,226 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:11:45,317 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52: havoc #t~ret5#1; [2025-02-08 01:11:45,317 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-1: havoc #t~mem4#1; [2025-02-08 01:11:45,317 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-2: havoc #t~mem3#1; [2025-02-08 01:11:45,317 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-3: ~res1~0 := #t~ret5#1; [2025-02-08 01:11:45,317 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret5#1 && #t~ret5#1 <= 2147483647; [2025-02-08 01:11:45,317 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 01:11:45,317 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-6: havoc minus_~a#1, minus_~b#1; [2025-02-08 01:11:45,318 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-7: #t~ret5#1 := minus_#res#1; [2025-02-08 01:11:45,354 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66: havoc #t~ret11#1; [2025-02-08 01:11:45,355 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66-1: havoc #t~mem10#1; [2025-02-08 01:11:45,355 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66-2: havoc #t~mem9#1; [2025-02-08 01:11:45,355 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66-3: ~res2~0 := #t~ret11#1; [2025-02-08 01:11:45,355 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret11#1 && #t~ret11#1 <= 2147483647; [2025-02-08 01:11:45,355 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 01:11:45,355 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66-6: havoc minus_~a#1, minus_~b#1; [2025-02-08 01:11:45,355 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L66-7: #t~ret11#1 := minus_#res#1; [2025-02-08 01:11:45,458 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:11:45,459 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:11:45,619 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:11:45,619 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:11:45,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:11:45 BoogieIcfgContainer [2025-02-08 01:11:45,620 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:11:45,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:11:45,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:11:45,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:11:45,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:11:44" (1/3) ... [2025-02-08 01:11:45,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f11217b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:11:45, skipping insertion in model container [2025-02-08 01:11:45,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:45" (2/3) ... [2025-02-08 01:11:45,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f11217b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:11:45, skipping insertion in model container [2025-02-08 01:11:45,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:11:45" (3/3) ... [2025-02-08 01:11:45,627 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2025-02-08 01:11:45,637 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:11:45,639 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-array-int-symm.wvr.c that has 3 procedures, 23 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-02-08 01:11:45,639 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:11:45,675 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 01:11:45,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 26 transitions, 66 flow [2025-02-08 01:11:45,715 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2025-02-08 01:11:45,717 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 01:11:45,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 24 events. 4/24 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2025-02-08 01:11:45,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 26 transitions, 66 flow [2025-02-08 01:11:45,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 23 transitions, 58 flow [2025-02-08 01:11:45,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:11:45,733 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;@6231fead, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:11:45,734 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-08 01:11:45,741 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:11:45,742 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2025-02-08 01:11:45,742 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 01:11:45,742 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:45,744 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:45,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:45,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1037401100, now seen corresponding path program 1 times [2025-02-08 01:11:45,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:45,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053613094] [2025-02-08 01:11:45,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:45,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:45,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 01:11:45,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 01:11:45,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:45,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:46,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:46,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053613094] [2025-02-08 01:11:46,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053613094] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:46,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:46,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:11:46,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589472236] [2025-02-08 01:11:46,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:46,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:11:46,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:46,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:11:46,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:11:46,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:46,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 58 flow. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2025-02-08 01:11:46,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:46,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:46,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:46,562 INFO L124 PetriNetUnfolderBase]: 185/325 cut-off events. [2025-02-08 01:11:46,562 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-02-08 01:11:46,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 325 events. 185/325 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1151 event pairs, 96 based on Foata normal form. 1/230 useless extension candidates. Maximal degree in co-relation 300. Up to 158 conditions per place. [2025-02-08 01:11:46,569 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 22 selfloop transitions, 6 changer transitions 19/48 dead transitions. [2025-02-08 01:11:46,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 48 transitions, 217 flow [2025-02-08 01:11:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:11:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:11:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 66 transitions. [2025-02-08 01:11:46,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2025-02-08 01:11:46,583 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 58 flow. Second operand 6 states and 66 transitions. [2025-02-08 01:11:46,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 48 transitions, 217 flow [2025-02-08 01:11:46,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 48 transitions, 199 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 01:11:46,589 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 91 flow [2025-02-08 01:11:46,590 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=91, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2025-02-08 01:11:46,593 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2025-02-08 01:11:46,594 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 91 flow [2025-02-08 01:11:46,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2025-02-08 01:11:46,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:46,594 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:46,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:11:46,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:46,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:46,596 INFO L85 PathProgramCache]: Analyzing trace with hash -435546415, now seen corresponding path program 1 times [2025-02-08 01:11:46,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:46,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472776049] [2025-02-08 01:11:46,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:46,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:46,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:11:46,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:11:46,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:46,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:46,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:46,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472776049] [2025-02-08 01:11:46,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472776049] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:46,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283113801] [2025-02-08 01:11:46,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:46,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:46,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:11:46,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:11:46,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:11:46,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:11:46,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:11:46,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:46,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:46,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 01:11:46,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:11:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:46,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:11:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:47,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283113801] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:47,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:11:47,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2025-02-08 01:11:47,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843681042] [2025-02-08 01:11:47,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:47,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:11:47,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:47,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:11:47,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:11:47,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:47,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 91 flow. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-02-08 01:11:47,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:47,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:47,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:47,205 INFO L124 PetriNetUnfolderBase]: 155/278 cut-off events. [2025-02-08 01:11:47,206 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2025-02-08 01:11:47,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 278 events. 155/278 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 969 event pairs, 39 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 621. Up to 113 conditions per place. [2025-02-08 01:11:47,208 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 41 selfloop transitions, 5 changer transitions 13/60 dead transitions. [2025-02-08 01:11:47,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 60 transitions, 300 flow [2025-02-08 01:11:47,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:11:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:11:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 78 transitions. [2025-02-08 01:11:47,211 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2025-02-08 01:11:47,211 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 91 flow. Second operand 7 states and 78 transitions. [2025-02-08 01:11:47,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 60 transitions, 300 flow [2025-02-08 01:11:47,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 60 transitions, 287 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-08 01:11:47,213 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 107 flow [2025-02-08 01:11:47,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=107, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2025-02-08 01:11:47,213 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2025-02-08 01:11:47,213 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 107 flow [2025-02-08 01:11:47,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-02-08 01:11:47,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:47,213 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:47,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:11:47,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:47,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:47,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:47,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2007631843, now seen corresponding path program 2 times [2025-02-08 01:11:47,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:47,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530615148] [2025-02-08 01:11:47,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:11:47,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:47,437 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 01:11:47,447 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 16 statements. [2025-02-08 01:11:47,448 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:11:47,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 01:11:47,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530615148] [2025-02-08 01:11:47,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530615148] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:47,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:47,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:11:47,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488882094] [2025-02-08 01:11:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:47,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:11:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:47,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:11:47,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:11:47,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:47,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2025-02-08 01:11:47,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:47,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:47,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:47,703 INFO L124 PetriNetUnfolderBase]: 105/191 cut-off events. [2025-02-08 01:11:47,704 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2025-02-08 01:11:47,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 191 events. 105/191 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 566 event pairs, 15 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 456. Up to 104 conditions per place. [2025-02-08 01:11:47,706 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 22 selfloop transitions, 4 changer transitions 23/50 dead transitions. [2025-02-08 01:11:47,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 262 flow [2025-02-08 01:11:47,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:11:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:11:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 74 transitions. [2025-02-08 01:11:47,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3557692307692308 [2025-02-08 01:11:47,708 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 107 flow. Second operand 8 states and 74 transitions. [2025-02-08 01:11:47,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 262 flow [2025-02-08 01:11:47,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 250 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 01:11:47,710 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 86 flow [2025-02-08 01:11:47,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2025-02-08 01:11:47,711 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2025-02-08 01:11:47,711 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 86 flow [2025-02-08 01:11:47,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2025-02-08 01:11:47,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:47,711 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:47,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:11:47,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:47,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash 584694901, now seen corresponding path program 1 times [2025-02-08 01:11:47,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:47,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590593072] [2025-02-08 01:11:47,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:47,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:47,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:11:47,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:11:47,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:47,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:47,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:47,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:47,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590593072] [2025-02-08 01:11:47,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590593072] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:47,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474687241] [2025-02-08 01:11:47,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:47,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:11:47,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:11:47,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:11:47,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:11:47,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:11:47,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:47,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:47,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 01:11:47,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:11:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:48,015 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:11:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:48,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474687241] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:48,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:11:48,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 14 [2025-02-08 01:11:48,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170880157] [2025-02-08 01:11:48,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:48,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:11:48,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:48,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:11:48,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-02-08 01:11:48,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:48,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 86 flow. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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) [2025-02-08 01:11:48,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:48,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:48,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:48,196 INFO L124 PetriNetUnfolderBase]: 154/276 cut-off events. [2025-02-08 01:11:48,196 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2025-02-08 01:11:48,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 276 events. 154/276 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 971 event pairs, 39 based on Foata normal form. 1/223 useless extension candidates. Maximal degree in co-relation 634. Up to 112 conditions per place. [2025-02-08 01:11:48,197 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 38 selfloop transitions, 6 changer transitions 13/58 dead transitions. [2025-02-08 01:11:48,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 58 transitions, 297 flow [2025-02-08 01:11:48,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:11:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:11:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 79 transitions. [2025-02-08 01:11:48,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3798076923076923 [2025-02-08 01:11:48,199 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 86 flow. Second operand 8 states and 79 transitions. [2025-02-08 01:11:48,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 58 transitions, 297 flow [2025-02-08 01:11:48,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 58 transitions, 265 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-02-08 01:11:48,200 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 106 flow [2025-02-08 01:11:48,200 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2025-02-08 01:11:48,200 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2025-02-08 01:11:48,201 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 106 flow [2025-02-08 01:11:48,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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) [2025-02-08 01:11:48,201 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:48,201 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:48,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 01:11:48,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:48,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1590179893, now seen corresponding path program 2 times [2025-02-08 01:11:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244784096] [2025-02-08 01:11:48,406 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:11:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:48,411 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 01:11:48,420 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 16 statements. [2025-02-08 01:11:48,420 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:11:48,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 01:11:48,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:48,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244784096] [2025-02-08 01:11:48,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244784096] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:48,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:48,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:11:48,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852165855] [2025-02-08 01:11:48,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:48,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:11:48,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:48,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:11:48,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:11:48,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:48,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 106 flow. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-02-08 01:11:48,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:48,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:48,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:48,669 INFO L124 PetriNetUnfolderBase]: 104/189 cut-off events. [2025-02-08 01:11:48,670 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2025-02-08 01:11:48,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 189 events. 104/189 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 548 event pairs, 15 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 450. Up to 103 conditions per place. [2025-02-08 01:11:48,671 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 22 selfloop transitions, 5 changer transitions 20/48 dead transitions. [2025-02-08 01:11:48,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 249 flow [2025-02-08 01:11:48,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:11:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:11:48,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 71 transitions. [2025-02-08 01:11:48,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34134615384615385 [2025-02-08 01:11:48,672 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 106 flow. Second operand 8 states and 71 transitions. [2025-02-08 01:11:48,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 249 flow [2025-02-08 01:11:48,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 239 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-08 01:11:48,673 INFO L231 Difference]: Finished difference. Result has 38 places, 25 transitions, 95 flow [2025-02-08 01:11:48,673 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=95, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2025-02-08 01:11:48,673 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2025-02-08 01:11:48,673 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 95 flow [2025-02-08 01:11:48,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-02-08 01:11:48,674 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:48,674 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:48,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:11:48,674 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:48,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:48,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1469722188, now seen corresponding path program 1 times [2025-02-08 01:11:48,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:48,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707054667] [2025-02-08 01:11:48,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:48,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:48,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 01:11:48,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 01:11:48,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:48,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707054667] [2025-02-08 01:11:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707054667] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953344624] [2025-02-08 01:11:48,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:48,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:48,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:11:48,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:11:48,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:11:48,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 01:11:48,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 01:11:48,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:48,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:48,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 01:11:48,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:11:48,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:48,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:11:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:49,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953344624] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:49,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:11:49,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2025-02-08 01:11:49,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269144330] [2025-02-08 01:11:49,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:49,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:11:49,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:49,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:11:49,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:11:49,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:49,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 95 flow. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2025-02-08 01:11:49,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:49,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:49,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:49,094 INFO L124 PetriNetUnfolderBase]: 76/137 cut-off events. [2025-02-08 01:11:49,094 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2025-02-08 01:11:49,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 137 events. 76/137 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 309 event pairs, 27 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 326. Up to 79 conditions per place. [2025-02-08 01:11:49,095 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 23 selfloop transitions, 8 changer transitions 0/32 dead transitions. [2025-02-08 01:11:49,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 176 flow [2025-02-08 01:11:49,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:11:49,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:11:49,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 51 transitions. [2025-02-08 01:11:49,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2802197802197802 [2025-02-08 01:11:49,096 INFO L175 Difference]: Start difference. First operand has 38 places, 25 transitions, 95 flow. Second operand 7 states and 51 transitions. [2025-02-08 01:11:49,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 176 flow [2025-02-08 01:11:49,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 165 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-08 01:11:49,097 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 117 flow [2025-02-08 01:11:49,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=117, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2025-02-08 01:11:49,097 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2025-02-08 01:11:49,097 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 117 flow [2025-02-08 01:11:49,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2025-02-08 01:11:49,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:49,098 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:49,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 01:11:49,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:49,298 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:49,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:49,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1664183254, now seen corresponding path program 1 times [2025-02-08 01:11:49,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:49,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73071222] [2025-02-08 01:11:49,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:49,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:49,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 01:11:49,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 01:11:49,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:49,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 01:11:49,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73071222] [2025-02-08 01:11:49,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73071222] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520843983] [2025-02-08 01:11:49,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:49,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:49,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:11:49,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:11:49,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 01:11:49,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 01:11:49,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 01:11:49,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:49,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:49,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 01:11:49,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:11:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 01:11:49,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:11:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 01:11:49,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520843983] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:49,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:11:49,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2025-02-08 01:11:49,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131955789] [2025-02-08 01:11:49,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:49,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:11:49,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:49,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:11:49,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:11:49,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:49,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 117 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-08 01:11:49,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:49,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:49,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:49,676 INFO L124 PetriNetUnfolderBase]: 93/166 cut-off events. [2025-02-08 01:11:49,676 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2025-02-08 01:11:49,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 166 events. 93/166 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 408 event pairs, 35 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 451. Up to 91 conditions per place. [2025-02-08 01:11:49,677 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 26 selfloop transitions, 8 changer transitions 0/35 dead transitions. [2025-02-08 01:11:49,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 35 transitions, 222 flow [2025-02-08 01:11:49,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:11:49,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:11:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 52 transitions. [2025-02-08 01:11:49,678 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2025-02-08 01:11:49,678 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 117 flow. Second operand 7 states and 52 transitions. [2025-02-08 01:11:49,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 35 transitions, 222 flow [2025-02-08 01:11:49,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 35 transitions, 207 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 01:11:49,679 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 136 flow [2025-02-08 01:11:49,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2025-02-08 01:11:49,680 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2025-02-08 01:11:49,680 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 136 flow [2025-02-08 01:11:49,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-08 01:11:49,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:49,680 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] [2025-02-08 01:11:49,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 01:11:49,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-08 01:11:49,881 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:49,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:49,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1192179413, now seen corresponding path program 1 times [2025-02-08 01:11:49,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:49,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058799137] [2025-02-08 01:11:49,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:49,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:49,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:11:49,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:11:49,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:49,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:50,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:50,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058799137] [2025-02-08 01:11:50,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058799137] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:11:50,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038874841] [2025-02-08 01:11:50,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:50,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:50,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:11:50,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:11:50,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 01:11:50,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:11:50,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:11:50,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:50,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:50,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-08 01:11:50,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:11:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:50,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:11:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:50,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038874841] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 01:11:50,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 01:11:50,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2025-02-08 01:11:50,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30189171] [2025-02-08 01:11:50,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 01:11:50,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 01:11:50,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:50,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 01:11:50,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2025-02-08 01:11:50,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:50,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 136 flow. Second operand has 21 states, 21 states have (on average 5.857142857142857) internal successors, (123), 21 states have internal predecessors, (123), 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) [2025-02-08 01:11:50,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:50,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:50,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:50,797 INFO L124 PetriNetUnfolderBase]: 328/578 cut-off events. [2025-02-08 01:11:50,797 INFO L125 PetriNetUnfolderBase]: For 719/719 co-relation queries the response was YES. [2025-02-08 01:11:50,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 578 events. 328/578 cut-off events. For 719/719 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2269 event pairs, 88 based on Foata normal form. 2/577 useless extension candidates. Maximal degree in co-relation 1313. Up to 158 conditions per place. [2025-02-08 01:11:50,800 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 47 selfloop transitions, 11 changer transitions 34/93 dead transitions. [2025-02-08 01:11:50,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 93 transitions, 616 flow [2025-02-08 01:11:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 01:11:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 01:11:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 121 transitions. [2025-02-08 01:11:50,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35798816568047337 [2025-02-08 01:11:50,803 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 136 flow. Second operand 13 states and 121 transitions. [2025-02-08 01:11:50,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 93 transitions, 616 flow [2025-02-08 01:11:50,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 93 transitions, 592 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 01:11:50,805 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 222 flow [2025-02-08 01:11:50,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=222, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2025-02-08 01:11:50,805 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 29 predicate places. [2025-02-08 01:11:50,805 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 222 flow [2025-02-08 01:11:50,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.857142857142857) internal successors, (123), 21 states have internal predecessors, (123), 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) [2025-02-08 01:11:50,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:50,808 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:50,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 01:11:51,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:11:51,009 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:51,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:51,009 INFO L85 PathProgramCache]: Analyzing trace with hash 714495532, now seen corresponding path program 2 times [2025-02-08 01:11:51,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:51,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767116382] [2025-02-08 01:11:51,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:11:51,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:51,016 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-08 01:11:51,022 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 22 statements. [2025-02-08 01:11:51,023 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:11:51,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 01:11:51,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:51,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767116382] [2025-02-08 01:11:51,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767116382] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:51,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:51,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:11:51,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971243680] [2025-02-08 01:11:51,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:51,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:11:51,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:51,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:11:51,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:11:51,084 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:51,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-02-08 01:11:51,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:51,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:51,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:51,169 INFO L124 PetriNetUnfolderBase]: 212/378 cut-off events. [2025-02-08 01:11:51,169 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2025-02-08 01:11:51,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 378 events. 212/378 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1363 event pairs, 0 based on Foata normal form. 1/379 useless extension candidates. Maximal degree in co-relation 1206. Up to 229 conditions per place. [2025-02-08 01:11:51,171 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 32 selfloop transitions, 5 changer transitions 15/53 dead transitions. [2025-02-08 01:11:51,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 397 flow [2025-02-08 01:11:51,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:11:51,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:11:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2025-02-08 01:11:51,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4153846153846154 [2025-02-08 01:11:51,172 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 222 flow. Second operand 5 states and 54 transitions. [2025-02-08 01:11:51,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 397 flow [2025-02-08 01:11:51,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 369 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-08 01:11:51,174 INFO L231 Difference]: Finished difference. Result has 52 places, 32 transitions, 190 flow [2025-02-08 01:11:51,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=52, PETRI_TRANSITIONS=32} [2025-02-08 01:11:51,174 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 26 predicate places. [2025-02-08 01:11:51,174 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 32 transitions, 190 flow [2025-02-08 01:11:51,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-02-08 01:11:51,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:51,174 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:51,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 01:11:51,174 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:11:51,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:51,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1331418510, now seen corresponding path program 3 times [2025-02-08 01:11:51,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:51,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882485429] [2025-02-08 01:11:51,175 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 01:11:51,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:51,181 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 22 statements into 2 equivalence classes. [2025-02-08 01:11:51,185 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 15 of 22 statements. [2025-02-08 01:11:51,185 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 01:11:51,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 01:11:51,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:51,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882485429] [2025-02-08 01:11:51,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882485429] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:51,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:51,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:11:51,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626530937] [2025-02-08 01:11:51,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:51,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:11:51,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:51,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:11:51,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:11:51,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2025-02-08 01:11:51,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 32 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-02-08 01:11:51,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:51,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2025-02-08 01:11:51,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:51,276 INFO L124 PetriNetUnfolderBase]: 135/243 cut-off events. [2025-02-08 01:11:51,276 INFO L125 PetriNetUnfolderBase]: For 367/367 co-relation queries the response was YES. [2025-02-08 01:11:51,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 243 events. 135/243 cut-off events. For 367/367 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 699 event pairs, 0 based on Foata normal form. 2/245 useless extension candidates. Maximal degree in co-relation 796. Up to 194 conditions per place. [2025-02-08 01:11:51,277 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2025-02-08 01:11:51,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 36 transitions, 278 flow [2025-02-08 01:11:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:11:51,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:11:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2025-02-08 01:11:51,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3076923076923077 [2025-02-08 01:11:51,278 INFO L175 Difference]: Start difference. First operand has 52 places, 32 transitions, 190 flow. Second operand 5 states and 40 transitions. [2025-02-08 01:11:51,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 36 transitions, 278 flow [2025-02-08 01:11:51,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 36 transitions, 263 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-02-08 01:11:51,279 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2025-02-08 01:11:51,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2025-02-08 01:11:51,280 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 24 predicate places. [2025-02-08 01:11:51,280 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2025-02-08 01:11:51,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-02-08 01:11:51,282 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-02-08 01:11:51,282 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-02-08 01:11:51,282 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-02-08 01:11:51,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 01:11:51,282 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1] [2025-02-08 01:11:51,284 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:11:51,285 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:11:51,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:11:51 BasicIcfg [2025-02-08 01:11:51,288 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:11:51,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:11:51,288 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:11:51,288 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:11:51,289 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:11:45" (3/4) ... [2025-02-08 01:11:51,290 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:11:51,292 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 01:11:51,292 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 01:11:51,296 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2025-02-08 01:11:51,296 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2025-02-08 01:11:51,296 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2025-02-08 01:11:51,296 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 01:11:51,351 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:11:51,351 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:11:51,351 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:11:51,351 INFO L158 Benchmark]: Toolchain (without parser) took 6467.31ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 159.0MB in the beginning and 162.2MB in the end (delta: -3.2MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2025-02-08 01:11:51,352 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 226.5MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:11:51,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.23ms. Allocated memory is still 201.3MB. Free memory was 159.0MB in the beginning and 146.6MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:11:51,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.20ms. Allocated memory is still 201.3MB. Free memory was 146.6MB in the beginning and 145.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:11:51,352 INFO L158 Benchmark]: Boogie Preprocessor took 23.13ms. Allocated memory is still 201.3MB. Free memory was 145.0MB in the beginning and 142.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:11:51,352 INFO L158 Benchmark]: IcfgBuilder took 507.48ms. Allocated memory is still 201.3MB. Free memory was 142.9MB in the beginning and 90.2MB in the end (delta: 52.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-08 01:11:51,352 INFO L158 Benchmark]: TraceAbstraction took 5666.73ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 89.7MB in the beginning and 168.2MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:11:51,353 INFO L158 Benchmark]: Witness Printer took 62.72ms. Allocated memory is still 243.3MB. Free memory was 168.2MB in the beginning and 162.2MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:11:51,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 226.5MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.23ms. Allocated memory is still 201.3MB. Free memory was 159.0MB in the beginning and 146.6MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.20ms. Allocated memory is still 201.3MB. Free memory was 146.6MB in the beginning and 145.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.13ms. Allocated memory is still 201.3MB. Free memory was 145.0MB in the beginning and 142.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 507.48ms. Allocated memory is still 201.3MB. Free memory was 142.9MB in the beginning and 90.2MB in the end (delta: 52.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5666.73ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 89.7MB in the beginning and 168.2MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.72ms. Allocated memory is still 243.3MB. Free memory was 168.2MB in the beginning and 162.2MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 92]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 545 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 545 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1092 IncrementalHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 0 mSDtfsCounter, 1092 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 141 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=8, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 269 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 2116 SizeOfPredicates, 38 NumberOfNonLiveVariables, 892 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 20 InterpolantComputations, 9 PerfectInterpolantSequences, 23/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:11:51,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE