./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 00:52:07,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 00:52:07,783 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 00:52:07,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 00:52:07,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 00:52:07,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 00:52:07,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 00:52:07,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 00:52:07,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 00:52:07,815 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 00:52:07,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 00:52:07,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 00:52:07,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 00:52:07,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 00:52:07,816 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 00:52:07,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 00:52:07,817 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 00:52:07,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 00:52:07,818 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 00:52:07,818 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 00:52:07,818 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 00:52:07,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 00:52:07,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 00:52:07,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 00:52:07,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:52:07,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 00:52:07,819 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2025-03-14 00:52:08,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 00:52:08,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 00:52:08,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 00:52:08,051 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 00:52:08,051 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 00:52:08,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-03-14 00:52:09,182 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f55a0515/a3ad4cfebfe34a279528dcc5c2a6d97f/FLAGb688829c2 [2025-03-14 00:52:09,498 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 00:52:09,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-03-14 00:52:09,515 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f55a0515/a3ad4cfebfe34a279528dcc5c2a6d97f/FLAGb688829c2 [2025-03-14 00:52:09,533 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f55a0515/a3ad4cfebfe34a279528dcc5c2a6d97f [2025-03-14 00:52:09,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 00:52:09,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 00:52:09,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 00:52:09,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 00:52:09,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 00:52:09,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:09,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288d7102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09, skipping insertion in model container [2025-03-14 00:52:09,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:09,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 00:52:09,699 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2025-03-14 00:52:09,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:52:09,901 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 00:52:09,909 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2025-03-14 00:52:09,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:52:09,979 INFO L204 MainTranslator]: Completed translation [2025-03-14 00:52:09,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09 WrapperNode [2025-03-14 00:52:09,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 00:52:09,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 00:52:09,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 00:52:09,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 00:52:09,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,031 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2025-03-14 00:52:10,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 00:52:10,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 00:52:10,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 00:52:10,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 00:52:10,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,064 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-14 00:52:10,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,078 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 00:52:10,094 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 00:52:10,094 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 00:52:10,094 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 00:52:10,095 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (1/1) ... [2025-03-14 00:52:10,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:52:10,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 00:52:10,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-14 00:52:10,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-14 00:52:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 00:52:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 00:52:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-14 00:52:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-14 00:52:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-14 00:52:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-14 00:52:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 00:52:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 00:52:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 00:52:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 00:52:10,147 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 00:52:10,226 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 00:52:10,228 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 00:52:10,521 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 00:52:10,522 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 00:52:10,522 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 00:52:10,747 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 00:52:10,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:52:10 BoogieIcfgContainer [2025-03-14 00:52:10,748 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 00:52:10,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 00:52:10,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 00:52:10,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 00:52:10,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 12:52:09" (1/3) ... [2025-03-14 00:52:10,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c95503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:52:10, skipping insertion in model container [2025-03-14 00:52:10,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:52:09" (2/3) ... [2025-03-14 00:52:10,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c95503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:52:10, skipping insertion in model container [2025-03-14 00:52:10,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:52:10" (3/3) ... [2025-03-14 00:52:10,757 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2025-03-14 00:52:10,769 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 00:52:10,772 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi003_tso.i that has 3 procedures, 33 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-14 00:52:10,772 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 00:52:10,813 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 00:52:10,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 74 flow [2025-03-14 00:52:10,885 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2025-03-14 00:52:10,890 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:52:10,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2025-03-14 00:52:10,892 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 74 flow [2025-03-14 00:52:10,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 31 transitions, 68 flow [2025-03-14 00:52:10,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 00:52:10,917 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;@28731906, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 00:52:10,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-14 00:52:10,923 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 00:52:10,923 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-03-14 00:52:10,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:52:10,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:52:10,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:52:10,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:52:10,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:52:10,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2101147008, now seen corresponding path program 1 times [2025-03-14 00:52:10,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:52:10,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531467338] [2025-03-14 00:52:10,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:52:10,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:52:11,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-14 00:52:11,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-14 00:52:11,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:52:11,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:52:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:52:11,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:52:11,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531467338] [2025-03-14 00:52:11,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531467338] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:52:11,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:52:11,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 00:52:11,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352824225] [2025-03-14 00:52:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:52:11,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 00:52:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:52:11,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 00:52:11,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 00:52:11,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2025-03-14 00:52:11,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:11,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:52:11,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2025-03-14 00:52:11,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:52:11,679 INFO L124 PetriNetUnfolderBase]: 733/1241 cut-off events. [2025-03-14 00:52:11,680 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-14 00:52:11,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1241 events. 733/1241 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6018 event pairs, 151 based on Foata normal form. 56/1282 useless extension candidates. Maximal degree in co-relation 2447. Up to 919 conditions per place. [2025-03-14 00:52:11,693 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 33 selfloop transitions, 2 changer transitions 2/42 dead transitions. [2025-03-14 00:52:11,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 164 flow [2025-03-14 00:52:11,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 00:52:11,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 00:52:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-03-14 00:52:11,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6161616161616161 [2025-03-14 00:52:11,705 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 61 transitions. [2025-03-14 00:52:11,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 164 flow [2025-03-14 00:52:11,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 00:52:11,711 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2025-03-14 00:52:11,713 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2025-03-14 00:52:11,718 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2025-03-14 00:52:11,718 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2025-03-14 00:52:11,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:11,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:52:11,719 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:52:11,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 00:52:11,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:52:11,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:52:11,720 INFO L85 PathProgramCache]: Analyzing trace with hash -863248190, now seen corresponding path program 1 times [2025-03-14 00:52:11,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:52:11,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92697536] [2025-03-14 00:52:11,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:52:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:52:11,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-14 00:52:11,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-14 00:52:11,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:52:11,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:52:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:52:11,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:52:11,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92697536] [2025-03-14 00:52:11,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92697536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:52:11,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:52:11,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 00:52:11,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260535730] [2025-03-14 00:52:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:52:11,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-14 00:52:11,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:52:11,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-14 00:52:11,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-14 00:52:11,982 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2025-03-14 00:52:11,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:11,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:52:11,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2025-03-14 00:52:11,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:52:12,174 INFO L124 PetriNetUnfolderBase]: 407/801 cut-off events. [2025-03-14 00:52:12,174 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-03-14 00:52:12,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 801 events. 407/801 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3725 event pairs, 132 based on Foata normal form. 56/830 useless extension candidates. Maximal degree in co-relation 1562. Up to 316 conditions per place. [2025-03-14 00:52:12,178 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 46 selfloop transitions, 4 changer transitions 1/56 dead transitions. [2025-03-14 00:52:12,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 56 transitions, 228 flow [2025-03-14 00:52:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-14 00:52:12,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-14 00:52:12,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-03-14 00:52:12,184 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2025-03-14 00:52:12,184 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 4 states and 81 transitions. [2025-03-14 00:52:12,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 56 transitions, 228 flow [2025-03-14 00:52:12,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 56 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 00:52:12,186 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 86 flow [2025-03-14 00:52:12,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2025-03-14 00:52:12,186 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2025-03-14 00:52:12,186 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 86 flow [2025-03-14 00:52:12,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:12,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:52:12,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:52:12,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 00:52:12,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:52:12,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:52:12,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1675012449, now seen corresponding path program 1 times [2025-03-14 00:52:12,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:52:12,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660884743] [2025-03-14 00:52:12,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:52:12,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:52:12,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-14 00:52:12,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-14 00:52:12,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:52:12,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:52:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:52:12,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:52:12,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660884743] [2025-03-14 00:52:12,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660884743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:52:12,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:52:12,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-14 00:52:12,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876627981] [2025-03-14 00:52:12,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:52:12,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:52:12,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:52:12,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:52:12,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:52:12,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2025-03-14 00:52:12,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:12,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:52:12,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2025-03-14 00:52:12,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:52:12,658 INFO L124 PetriNetUnfolderBase]: 204/392 cut-off events. [2025-03-14 00:52:12,658 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2025-03-14 00:52:12,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 392 events. 204/392 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1342 event pairs, 88 based on Foata normal form. 26/413 useless extension candidates. Maximal degree in co-relation 899. Up to 161 conditions per place. [2025-03-14 00:52:12,661 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 36 selfloop transitions, 6 changer transitions 1/48 dead transitions. [2025-03-14 00:52:12,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 48 transitions, 213 flow [2025-03-14 00:52:12,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 00:52:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 00:52:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2025-03-14 00:52:12,662 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2025-03-14 00:52:12,662 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 86 flow. Second operand 5 states and 80 transitions. [2025-03-14 00:52:12,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 48 transitions, 213 flow [2025-03-14 00:52:12,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 204 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-14 00:52:12,664 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 102 flow [2025-03-14 00:52:12,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2025-03-14 00:52:12,664 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2025-03-14 00:52:12,665 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 102 flow [2025-03-14 00:52:12,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:12,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:52:12,665 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:52:12,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 00:52:12,665 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:52:12,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:52:12,666 INFO L85 PathProgramCache]: Analyzing trace with hash 517601563, now seen corresponding path program 1 times [2025-03-14 00:52:12,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:52:12,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345953924] [2025-03-14 00:52:12,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:52:12,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:52:12,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-14 00:52:12,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-14 00:52:12,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:52:12,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:52:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:52:13,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:52:13,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345953924] [2025-03-14 00:52:13,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345953924] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:52:13,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:52:13,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:52:13,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072891040] [2025-03-14 00:52:13,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:52:13,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:52:13,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:52:13,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:52:13,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:52:13,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 33 [2025-03-14 00:52:13,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 102 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:13,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:52:13,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 33 [2025-03-14 00:52:13,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:52:13,411 INFO L124 PetriNetUnfolderBase]: 257/499 cut-off events. [2025-03-14 00:52:13,411 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2025-03-14 00:52:13,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 499 events. 257/499 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1872 event pairs, 36 based on Foata normal form. 4/502 useless extension candidates. Maximal degree in co-relation 1195. Up to 265 conditions per place. [2025-03-14 00:52:13,413 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 29 selfloop transitions, 1 changer transitions 24/58 dead transitions. [2025-03-14 00:52:13,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 306 flow [2025-03-14 00:52:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 00:52:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 00:52:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2025-03-14 00:52:13,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4393939393939394 [2025-03-14 00:52:13,415 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 102 flow. Second operand 6 states and 87 transitions. [2025-03-14 00:52:13,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 58 transitions, 306 flow [2025-03-14 00:52:13,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 249 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-03-14 00:52:13,417 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 85 flow [2025-03-14 00:52:13,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2025-03-14 00:52:13,418 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2025-03-14 00:52:13,418 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 85 flow [2025-03-14 00:52:13,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:13,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:52:13,418 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:52:13,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 00:52:13,418 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:52:13,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:52:13,419 INFO L85 PathProgramCache]: Analyzing trace with hash 323939597, now seen corresponding path program 2 times [2025-03-14 00:52:13,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:52:13,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713912105] [2025-03-14 00:52:13,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 00:52:13,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:52:13,428 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 1 equivalence classes. [2025-03-14 00:52:13,543 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-14 00:52:13,543 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 00:52:13,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:52:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:52:16,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:52:16,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713912105] [2025-03-14 00:52:16,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713912105] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:52:16,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:52:16,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-14 00:52:16,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090913795] [2025-03-14 00:52:16,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:52:16,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 00:52:16,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:52:16,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 00:52:16,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-14 00:52:16,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 33 [2025-03-14 00:52:16,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 85 flow. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:16,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:52:16,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 33 [2025-03-14 00:52:16,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:52:17,054 INFO L124 PetriNetUnfolderBase]: 238/485 cut-off events. [2025-03-14 00:52:17,054 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2025-03-14 00:52:17,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 485 events. 238/485 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1906 event pairs, 41 based on Foata normal form. 4/488 useless extension candidates. Maximal degree in co-relation 1058. Up to 207 conditions per place. [2025-03-14 00:52:17,056 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 34 selfloop transitions, 11 changer transitions 32/81 dead transitions. [2025-03-14 00:52:17,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 81 transitions, 369 flow [2025-03-14 00:52:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 00:52:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 00:52:17,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 140 transitions. [2025-03-14 00:52:17,058 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3856749311294766 [2025-03-14 00:52:17,058 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 85 flow. Second operand 11 states and 140 transitions. [2025-03-14 00:52:17,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 81 transitions, 369 flow [2025-03-14 00:52:17,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 81 transitions, 357 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-14 00:52:17,061 INFO L231 Difference]: Finished difference. Result has 54 places, 36 transitions, 141 flow [2025-03-14 00:52:17,062 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=141, PETRI_PLACES=54, PETRI_TRANSITIONS=36} [2025-03-14 00:52:17,063 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2025-03-14 00:52:17,064 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 36 transitions, 141 flow [2025-03-14 00:52:17,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:17,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:52:17,064 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:52:17,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 00:52:17,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:52:17,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:52:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash -450223525, now seen corresponding path program 3 times [2025-03-14 00:52:17,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:52:17,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248578233] [2025-03-14 00:52:17,065 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 00:52:17,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:52:17,079 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 25 statements into 1 equivalence classes. [2025-03-14 00:52:17,202 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-14 00:52:17,202 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 00:52:17,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:52:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:52:19,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:52:19,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248578233] [2025-03-14 00:52:19,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248578233] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:52:19,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:52:19,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-14 00:52:19,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935037950] [2025-03-14 00:52:19,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:52:19,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 00:52:19,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:52:19,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 00:52:19,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-14 00:52:19,204 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 33 [2025-03-14 00:52:19,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 36 transitions, 141 flow. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:19,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:52:19,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 33 [2025-03-14 00:52:19,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:52:19,694 INFO L124 PetriNetUnfolderBase]: 156/341 cut-off events. [2025-03-14 00:52:19,694 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2025-03-14 00:52:19,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 888 conditions, 341 events. 156/341 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1167 event pairs, 33 based on Foata normal form. 4/344 useless extension candidates. Maximal degree in co-relation 870. Up to 101 conditions per place. [2025-03-14 00:52:19,695 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 29 selfloop transitions, 6 changer transitions 29/68 dead transitions. [2025-03-14 00:52:19,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 360 flow [2025-03-14 00:52:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 00:52:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 00:52:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 118 transitions. [2025-03-14 00:52:19,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3575757575757576 [2025-03-14 00:52:19,699 INFO L175 Difference]: Start difference. First operand has 54 places, 36 transitions, 141 flow. Second operand 10 states and 118 transitions. [2025-03-14 00:52:19,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 360 flow [2025-03-14 00:52:19,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 340 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-03-14 00:52:19,702 INFO L231 Difference]: Finished difference. Result has 60 places, 30 transitions, 120 flow [2025-03-14 00:52:19,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=120, PETRI_PLACES=60, PETRI_TRANSITIONS=30} [2025-03-14 00:52:19,703 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 23 predicate places. [2025-03-14 00:52:19,703 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 30 transitions, 120 flow [2025-03-14 00:52:19,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:19,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:52:19,704 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:52:19,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 00:52:19,704 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:52:19,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:52:19,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1487823505, now seen corresponding path program 4 times [2025-03-14 00:52:19,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:52:19,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21419823] [2025-03-14 00:52:19,706 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 00:52:19,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:52:19,715 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 25 statements into 2 equivalence classes. [2025-03-14 00:52:19,774 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-03-14 00:52:19,774 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 00:52:19,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:52:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:52:22,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:52:22,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21419823] [2025-03-14 00:52:22,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21419823] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:52:22,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:52:22,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-14 00:52:22,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744157838] [2025-03-14 00:52:22,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:52:22,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-14 00:52:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:52:22,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-14 00:52:22,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-14 00:52:22,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 33 [2025-03-14 00:52:22,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 30 transitions, 120 flow. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:22,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:52:22,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 33 [2025-03-14 00:52:22,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:52:22,739 INFO L124 PetriNetUnfolderBase]: 74/168 cut-off events. [2025-03-14 00:52:22,739 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2025-03-14 00:52:22,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 168 events. 74/168 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 409 event pairs, 27 based on Foata normal form. 4/171 useless extension candidates. Maximal degree in co-relation 471. Up to 63 conditions per place. [2025-03-14 00:52:22,741 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2025-03-14 00:52:22,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 37 transitions, 202 flow [2025-03-14 00:52:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 00:52:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 00:52:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 81 transitions. [2025-03-14 00:52:22,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3068181818181818 [2025-03-14 00:52:22,742 INFO L175 Difference]: Start difference. First operand has 60 places, 30 transitions, 120 flow. Second operand 8 states and 81 transitions. [2025-03-14 00:52:22,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 37 transitions, 202 flow [2025-03-14 00:52:22,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 37 transitions, 174 flow, removed 7 selfloop flow, removed 11 redundant places. [2025-03-14 00:52:22,743 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2025-03-14 00:52:22,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2025-03-14 00:52:22,744 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 11 predicate places. [2025-03-14 00:52:22,744 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2025-03-14 00:52:22,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:52:22,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-03-14 00:52:22,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-03-14 00:52:22,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-14 00:52:22,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-14 00:52:22,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2025-03-14 00:52:22,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 00:52:22,747 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2025-03-14 00:52:22,751 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 00:52:22,754 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 00:52:22,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 12:52:22 BasicIcfg [2025-03-14 00:52:22,759 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 00:52:22,760 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 00:52:22,760 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 00:52:22,760 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 00:52:22,761 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:52:10" (3/4) ... [2025-03-14 00:52:22,763 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-14 00:52:22,765 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-14 00:52:22,766 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-14 00:52:22,769 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2025-03-14 00:52:22,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-14 00:52:22,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 00:52:22,770 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-14 00:52:22,828 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 00:52:22,829 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 00:52:22,830 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 00:52:22,831 INFO L158 Benchmark]: Toolchain (without parser) took 13294.13ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 110.5MB in the beginning and 622.0MB in the end (delta: -511.5MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2025-03-14 00:52:22,832 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:52:22,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.99ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 84.6MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 00:52:22,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.16ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 81.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:52:22,832 INFO L158 Benchmark]: Boogie Preprocessor took 61.71ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 77.6MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 00:52:22,833 INFO L158 Benchmark]: IcfgBuilder took 654.71ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 54.3MB in the end (delta: 23.3MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2025-03-14 00:52:22,833 INFO L158 Benchmark]: TraceAbstraction took 12008.41ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 53.6MB in the beginning and 626.3MB in the end (delta: -572.7MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2025-03-14 00:52:22,834 INFO L158 Benchmark]: Witness Printer took 70.41ms. Allocated memory is still 755.0MB. Free memory was 626.3MB in the beginning and 622.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:52:22,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.99ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 84.6MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.16ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 81.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.71ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 77.6MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 654.71ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 54.3MB in the end (delta: 23.3MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12008.41ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 53.6MB in the beginning and 626.3MB in the end (delta: -572.7MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. * Witness Printer took 70.41ms. Allocated memory is still 755.0MB. Free memory was 626.3MB in the beginning and 622.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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, 53 locations, 5 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: 11.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 355 mSDsluCounter, 298 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 295 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1320 IncrementalHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 3 mSDtfsCounter, 1320 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=5, InterpolantAutomatonStates: 47, 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: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 1774 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 00:52:22,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE