./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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/mix026_power.opt_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:12:23,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:12:23,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:12:23,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:12:23,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:12:23,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:12:23,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:12:23,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:12:23,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:12:23,075 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:12:23,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:12:23,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:12:23,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:12:23,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:12:23,075 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:12:23,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:12:23,076 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:12:23,077 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:12:23,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:12:23,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:12:23,079 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:12:23,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:12:23,079 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 ! overflow) ) 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 -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2025-03-04 15:12:23,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:12:23,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:12:23,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:12:23,327 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:12:23,328 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:12:23,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2025-03-04 15:12:24,569 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc18b677/6e4c4b17f0b14552935ed6d731096eb9/FLAG88cbfbd4c [2025-03-04 15:12:24,830 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:12:24,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2025-03-04 15:12:24,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc18b677/6e4c4b17f0b14552935ed6d731096eb9/FLAG88cbfbd4c [2025-03-04 15:12:24,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc18b677/6e4c4b17f0b14552935ed6d731096eb9 [2025-03-04 15:12:24,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:12:24,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:12:24,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:12:24,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:12:24,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:12:24,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:12:24" (1/1) ... [2025-03-04 15:12:24,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c66e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:24, skipping insertion in model container [2025-03-04 15:12:24,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:12:24" (1/1) ... [2025-03-04 15:12:24,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:12:25,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:12:25,201 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:12:25,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:12:25,274 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:12:25,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25 WrapperNode [2025-03-04 15:12:25,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:12:25,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:12:25,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:12:25,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:12:25,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,324 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2025-03-04 15:12:25,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:12:25,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:12:25,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:12:25,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:12:25,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,363 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]. [2025-03-04 15:12:25,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,372 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:12:25,377 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:12:25,377 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:12:25,377 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:12:25,378 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (1/1) ... [2025-03-04 15:12:25,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:12:25,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:12:25,421 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) [2025-03-04 15:12:25,426 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 [2025-03-04 15:12:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 15:12:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 15:12:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 15:12:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-04 15:12:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 15:12:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:12:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:12:25,443 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:12:25,556 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:12:25,558 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:12:25,857 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:12:25,857 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:12:26,075 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:12:26,076 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:12:26,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:12:26 BoogieIcfgContainer [2025-03-04 15:12:26,076 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:12:26,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:12:26,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:12:26,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:12:26,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:12:24" (1/3) ... [2025-03-04 15:12:26,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65438c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:12:26, skipping insertion in model container [2025-03-04 15:12:26,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:25" (2/3) ... [2025-03-04 15:12:26,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65438c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:12:26, skipping insertion in model container [2025-03-04 15:12:26,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:12:26" (3/3) ... [2025-03-04 15:12:26,085 INFO L128 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2025-03-04 15:12:26,097 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:12:26,099 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix026_power.opt_tso.opt.i that has 5 procedures, 52 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-04 15:12:26,100 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:12:26,163 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 15:12:26,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 118 flow [2025-03-04 15:12:26,221 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2025-03-04 15:12:26,225 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:12:26,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-04 15:12:26,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 51 transitions, 118 flow [2025-03-04 15:12:26,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 47 transitions, 106 flow [2025-03-04 15:12:26,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:12:26,246 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;@42cf3cfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:12:26,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-04 15:12:26,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:12:26,253 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-03-04 15:12:26,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:12:26,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:26,255 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:12:26,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:12:26,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:26,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2147280091, now seen corresponding path program 1 times [2025-03-04 15:12:26,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:26,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873838677] [2025-03-04 15:12:26,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:26,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:26,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:12:26,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:12:26,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:26,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:12:26,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:26,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873838677] [2025-03-04 15:12:26,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873838677] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:26,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:26,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:12:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441983019] [2025-03-04 15:12:26,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:26,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:12:26,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:26,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:12:26,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:12:26,536 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:26,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 47 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-03-04 15:12:26,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:26,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:26,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:32,356 INFO L124 PetriNetUnfolderBase]: 78483/103259 cut-off events. [2025-03-04 15:12:32,356 INFO L125 PetriNetUnfolderBase]: For 378/378 co-relation queries the response was YES. [2025-03-04 15:12:32,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207303 conditions, 103259 events. 78483/103259 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 2987. Compared 624487 event pairs, 25911 based on Foata normal form. 0/85140 useless extension candidates. Maximal degree in co-relation 207291. Up to 93953 conditions per place. [2025-03-04 15:12:32,866 INFO L140 encePairwiseOnDemand]: 38/51 looper letters, 67 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2025-03-04 15:12:32,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 76 transitions, 317 flow [2025-03-04 15:12:32,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:12:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:12:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-03-04 15:12:32,875 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6797385620915033 [2025-03-04 15:12:32,876 INFO L175 Difference]: Start difference. First operand has 60 places, 47 transitions, 106 flow. Second operand 3 states and 104 transitions. [2025-03-04 15:12:32,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 76 transitions, 317 flow [2025-03-04 15:12:32,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 76 transitions, 310 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:12:32,886 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 149 flow [2025-03-04 15:12:32,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2025-03-04 15:12:32,891 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2025-03-04 15:12:32,891 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 149 flow [2025-03-04 15:12:32,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-03-04 15:12:32,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:32,891 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:12:32,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:12:32,892 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:12:32,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -221477076, now seen corresponding path program 1 times [2025-03-04 15:12:32,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:32,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710084770] [2025-03-04 15:12:32,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:32,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:32,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:12:32,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:12:32,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:32,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:33,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:12:33,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:33,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710084770] [2025-03-04 15:12:33,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710084770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:33,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:33,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:12:33,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272193721] [2025-03-04 15:12:33,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:33,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:12:33,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:33,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:12:33,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:12:33,057 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:33,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2025-03-04 15:12:33,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:33,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:33,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:37,950 INFO L124 PetriNetUnfolderBase]: 63230/84488 cut-off events. [2025-03-04 15:12:37,950 INFO L125 PetriNetUnfolderBase]: For 4621/4621 co-relation queries the response was YES. [2025-03-04 15:12:38,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191340 conditions, 84488 events. 63230/84488 cut-off events. For 4621/4621 co-relation queries the response was YES. Maximal size of possible extension queue 2330. Compared 517813 event pairs, 13110 based on Foata normal form. 0/74693 useless extension candidates. Maximal degree in co-relation 191329. Up to 41665 conditions per place. [2025-03-04 15:12:38,404 INFO L140 encePairwiseOnDemand]: 38/51 looper letters, 94 selfloop transitions, 13 changer transitions 0/111 dead transitions. [2025-03-04 15:12:38,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 111 transitions, 509 flow [2025-03-04 15:12:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:12:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:12:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2025-03-04 15:12:38,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7009803921568627 [2025-03-04 15:12:38,405 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 149 flow. Second operand 4 states and 143 transitions. [2025-03-04 15:12:38,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 111 transitions, 509 flow [2025-03-04 15:12:38,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 111 transitions, 504 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:12:38,414 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 247 flow [2025-03-04 15:12:38,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2025-03-04 15:12:38,415 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 3 predicate places. [2025-03-04 15:12:38,415 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 247 flow [2025-03-04 15:12:38,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2025-03-04 15:12:38,416 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:38,416 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:12:38,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:12:38,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:12:38,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:38,419 INFO L85 PathProgramCache]: Analyzing trace with hash -221477077, now seen corresponding path program 1 times [2025-03-04 15:12:38,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:38,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932769503] [2025-03-04 15:12:38,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:38,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:38,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:12:38,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:12:38,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:38,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:12:38,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:38,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932769503] [2025-03-04 15:12:38,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932769503] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:38,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:38,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:12:38,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943587922] [2025-03-04 15:12:38,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:38,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:12:38,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:38,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:12:38,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:12:38,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:38,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2025-03-04 15:12:38,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:38,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:38,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:42,347 INFO L124 PetriNetUnfolderBase]: 40367/53355 cut-off events. [2025-03-04 15:12:42,348 INFO L125 PetriNetUnfolderBase]: For 37212/37212 co-relation queries the response was YES. [2025-03-04 15:12:42,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129133 conditions, 53355 events. 40367/53355 cut-off events. For 37212/37212 co-relation queries the response was YES. Maximal size of possible extension queue 1471. Compared 305285 event pairs, 11847 based on Foata normal form. 5140/56468 useless extension candidates. Maximal degree in co-relation 129119. Up to 44048 conditions per place. [2025-03-04 15:12:42,588 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 67 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2025-03-04 15:12:42,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 76 transitions, 391 flow [2025-03-04 15:12:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:12:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:12:42,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-03-04 15:12:42,590 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5098039215686274 [2025-03-04 15:12:42,590 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 247 flow. Second operand 4 states and 104 transitions. [2025-03-04 15:12:42,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 76 transitions, 391 flow [2025-03-04 15:12:43,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 76 transitions, 368 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-03-04 15:12:43,606 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 178 flow [2025-03-04 15:12:43,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2025-03-04 15:12:43,607 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2025-03-04 15:12:43,607 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 178 flow [2025-03-04 15:12:43,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2025-03-04 15:12:43,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:43,607 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] [2025-03-04 15:12:43,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:12:43,607 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:12:43,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash 640339438, now seen corresponding path program 1 times [2025-03-04 15:12:43,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:43,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999506784] [2025-03-04 15:12:43,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:43,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:43,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 15:12:43,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 15:12:43,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:43,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:12:43,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:43,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999506784] [2025-03-04 15:12:43,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999506784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:43,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:43,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:12:43,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339026361] [2025-03-04 15:12:43,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:43,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:12:43,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:43,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:12:43,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:12:43,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:43,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2025-03-04 15:12:43,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:43,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:43,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:46,874 INFO L124 PetriNetUnfolderBase]: 35759/47127 cut-off events. [2025-03-04 15:12:46,874 INFO L125 PetriNetUnfolderBase]: For 16822/16822 co-relation queries the response was YES. [2025-03-04 15:12:46,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108390 conditions, 47127 events. 35759/47127 cut-off events. For 16822/16822 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 265045 event pairs, 7023 based on Foata normal form. 0/46888 useless extension candidates. Maximal degree in co-relation 108377. Up to 18416 conditions per place. [2025-03-04 15:12:47,048 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 111 selfloop transitions, 13 changer transitions 4/132 dead transitions. [2025-03-04 15:12:47,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 132 transitions, 624 flow [2025-03-04 15:12:47,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:12:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:12:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 172 transitions. [2025-03-04 15:12:47,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6745098039215687 [2025-03-04 15:12:47,050 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 178 flow. Second operand 5 states and 172 transitions. [2025-03-04 15:12:47,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 132 transitions, 624 flow [2025-03-04 15:12:47,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 132 transitions, 618 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:12:47,072 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 214 flow [2025-03-04 15:12:47,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2025-03-04 15:12:47,072 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2025-03-04 15:12:47,072 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 214 flow [2025-03-04 15:12:47,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2025-03-04 15:12:47,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:47,073 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:12:47,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:12:47,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:12:47,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:47,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2102614876, now seen corresponding path program 1 times [2025-03-04 15:12:47,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:47,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211377953] [2025-03-04 15:12:47,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:47,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:47,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 15:12:47,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 15:12:47,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:47,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:12:47,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:47,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211377953] [2025-03-04 15:12:47,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211377953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:47,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:47,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:12:47,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897876049] [2025-03-04 15:12:47,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:47,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:12:47,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:47,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:12:47,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:12:47,403 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:47,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2025-03-04 15:12:47,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:47,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:47,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:50,428 INFO L124 PetriNetUnfolderBase]: 34799/45831 cut-off events. [2025-03-04 15:12:50,428 INFO L125 PetriNetUnfolderBase]: For 28720/28720 co-relation queries the response was YES. [2025-03-04 15:12:50,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113177 conditions, 45831 events. 34799/45831 cut-off events. For 28720/28720 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 258857 event pairs, 6855 based on Foata normal form. 224/46040 useless extension candidates. Maximal degree in co-relation 113163. Up to 18416 conditions per place. [2025-03-04 15:12:50,598 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 0 selfloop transitions, 0 changer transitions 124/124 dead transitions. [2025-03-04 15:12:50,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 124 transitions, 588 flow [2025-03-04 15:12:50,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:12:50,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:12:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2025-03-04 15:12:50,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5620915032679739 [2025-03-04 15:12:50,599 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 214 flow. Second operand 6 states and 172 transitions. [2025-03-04 15:12:50,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 124 transitions, 588 flow [2025-03-04 15:12:52,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 124 transitions, 533 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-03-04 15:12:52,017 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2025-03-04 15:12:52,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2025-03-04 15:12:52,018 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2025-03-04 15:12:52,018 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2025-03-04 15:12:52,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2025-03-04 15:12:52,020 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2025-03-04 15:12:52,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2025-03-04 15:12:52,022 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2025-03-04 15:12:52,022 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2025-03-04 15:12:52,022 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2025-03-04 15:12:52,022 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2025-03-04 15:12:52,022 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2025-03-04 15:12:52,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:12:52,022 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-04 15:12:52,026 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:12:52,026 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:12:52,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:12:52 BasicIcfg [2025-03-04 15:12:52,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:12:52,031 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:12:52,031 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:12:52,031 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:12:52,032 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:12:26" (3/4) ... [2025-03-04 15:12:52,033 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:12:52,035 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 15:12:52,035 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 15:12:52,035 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 15:12:52,035 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-03-04 15:12:52,039 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-03-04 15:12:52,039 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-04 15:12:52,039 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 15:12:52,039 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 15:12:52,115 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:12:52,116 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:12:52,116 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:12:52,116 INFO L158 Benchmark]: Toolchain (without parser) took 27246.32ms. Allocated memory was 167.8MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 122.3MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2025-03-04 15:12:52,116 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:12:52,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.02ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 98.7MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 15:12:52,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.30ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 96.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:12:52,117 INFO L158 Benchmark]: Boogie Preprocessor took 47.76ms. Allocated memory is still 167.8MB. Free memory was 96.5MB in the beginning and 93.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:12:52,117 INFO L158 Benchmark]: IcfgBuilder took 699.12ms. Allocated memory is still 167.8MB. Free memory was 93.3MB in the beginning and 114.0MB in the end (delta: -20.8MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2025-03-04 15:12:52,118 INFO L158 Benchmark]: TraceAbstraction took 25952.24ms. Allocated memory was 167.8MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 113.2MB in the beginning and 8.3GB in the end (delta: -8.1GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2025-03-04 15:12:52,118 INFO L158 Benchmark]: Witness Printer took 85.08ms. Allocated memory is still 10.8GB. Free memory was 8.3GB in the beginning and 8.2GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:12:52,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.02ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 98.7MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.30ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 96.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.76ms. Allocated memory is still 167.8MB. Free memory was 96.5MB in the beginning and 93.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 699.12ms. Allocated memory is still 167.8MB. Free memory was 93.3MB in the beginning and 114.0MB in the end (delta: -20.8MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. * TraceAbstraction took 25952.24ms. Allocated memory was 167.8MB in the beginning and 10.8GB in the end (delta: 10.6GB). Free memory was 113.2MB in the beginning and 8.3GB in the end (delta: -8.1GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 85.08ms. Allocated memory is still 10.8GB. Free memory was 8.3GB in the beginning and 8.2GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 847]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 847]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 93 locations, 20 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: 25.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 329 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 329 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 603 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 0 mSDtfsCounter, 603 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 15:12:52,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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