./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix026_pso.opt_rmo.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_pso.opt_rmo.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 a0c922061e4dc1feb6389a43fa3f654e69e326084cac4d5446a529710663ff29 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:12:26,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:12:26,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:12:26,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:12:26,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:12:26,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:12:26,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:12:26,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:12:26,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:12:26,242 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:12:26,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:12:26,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:12:26,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:12:26,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:12:26,243 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:12:26,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:12:26,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:12:26,243 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:12:26,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:12:26,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:12:26,244 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:12:26,244 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:12:26,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:12:26,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:12:26,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:12:26,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:12:26,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:12:26,246 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 -> a0c922061e4dc1feb6389a43fa3f654e69e326084cac4d5446a529710663ff29 [2025-03-04 15:12:26,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:12:26,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:12:26,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:12:26,493 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:12:26,493 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:12:26,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix026_pso.opt_rmo.opt.i [2025-03-04 15:12:27,640 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee358e1bb/29e0ba1590ba4156b0b8d14ed463857b/FLAGc06aa8442 [2025-03-04 15:12:27,966 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:12:27,967 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026_pso.opt_rmo.opt.i [2025-03-04 15:12:27,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee358e1bb/29e0ba1590ba4156b0b8d14ed463857b/FLAGc06aa8442 [2025-03-04 15:12:28,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee358e1bb/29e0ba1590ba4156b0b8d14ed463857b [2025-03-04 15:12:28,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:12:28,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:12:28,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:12:28,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:12:28,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:12:28,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b94c4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28, skipping insertion in model container [2025-03-04 15:12:28,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:12:28,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:12:28,480 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:12:28,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:12:28,553 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:12:28,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28 WrapperNode [2025-03-04 15:12:28,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:12:28,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:12:28,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:12:28,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:12:28,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,584 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2025-03-04 15:12:28,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:12:28,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:12:28,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:12:28,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:12:28,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,609 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 15:12:28,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,616 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:12:28,628 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:12:28,628 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:12:28,629 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:12:28,630 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (1/1) ... [2025-03-04 15:12:28,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:12:28,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:12:28,658 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 15:12:28,660 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 15:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 15:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 15:12:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 15:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 15:12:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 15:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 15:12:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 15:12:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-04 15:12:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-04 15:12:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:12:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 15:12:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:12:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:12:28,681 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 15:12:28,784 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:12:28,785 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:12:29,032 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:12:29,032 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:12:29,207 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:12:29,208 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:12:29,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:12:29 BoogieIcfgContainer [2025-03-04 15:12:29,208 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:12:29,211 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:12:29,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:12:29,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:12:29,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:12:28" (1/3) ... [2025-03-04 15:12:29,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4532f8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:12:29, skipping insertion in model container [2025-03-04 15:12:29,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:12:28" (2/3) ... [2025-03-04 15:12:29,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4532f8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:12:29, skipping insertion in model container [2025-03-04 15:12:29,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:12:29" (3/3) ... [2025-03-04 15:12:29,217 INFO L128 eAbstractionObserver]: Analyzing ICFG mix026_pso.opt_rmo.opt.i [2025-03-04 15:12:29,228 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:12:29,232 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix026_pso.opt_rmo.opt.i that has 5 procedures, 52 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-04 15:12:29,232 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:12:29,287 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 15:12:29,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 118 flow [2025-03-04 15:12:29,340 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2025-03-04 15:12:29,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:12:29,344 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 6. Compared 116 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 15:12:29,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 51 transitions, 118 flow [2025-03-04 15:12:29,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 47 transitions, 106 flow [2025-03-04 15:12:29,356 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:12:29,367 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;@626ec2a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:12:29,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-04 15:12:29,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:12:29,373 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-03-04 15:12:29,373 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:12:29,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:29,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:12:29,374 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 15:12:29,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:29,378 INFO L85 PathProgramCache]: Analyzing trace with hash -722674803, now seen corresponding path program 1 times [2025-03-04 15:12:29,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:29,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626221575] [2025-03-04 15:12:29,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:29,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:29,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:12:29,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:12:29,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:29,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:29,603 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 15:12:29,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:29,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626221575] [2025-03-04 15:12:29,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626221575] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:29,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:29,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:12:29,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802088948] [2025-03-04 15:12:29,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:29,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:12:29,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:29,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:12:29,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:12:29,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:29,634 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 15:12:29,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:29,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:29,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:35,052 INFO L124 PetriNetUnfolderBase]: 78483/103259 cut-off events. [2025-03-04 15:12:35,052 INFO L125 PetriNetUnfolderBase]: For 378/378 co-relation queries the response was YES. [2025-03-04 15:12:35,194 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 625237 event pairs, 25911 based on Foata normal form. 0/85132 useless extension candidates. Maximal degree in co-relation 207291. Up to 93953 conditions per place. [2025-03-04 15:12:35,571 INFO L140 encePairwiseOnDemand]: 38/51 looper letters, 67 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2025-03-04 15:12:35,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 76 transitions, 317 flow [2025-03-04 15:12:35,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:12:35,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:12:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-03-04 15:12:35,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6797385620915033 [2025-03-04 15:12:35,580 INFO L175 Difference]: Start difference. First operand has 60 places, 47 transitions, 106 flow. Second operand 3 states and 104 transitions. [2025-03-04 15:12:35,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 76 transitions, 317 flow [2025-03-04 15:12:35,589 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 15:12:35,591 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 149 flow [2025-03-04 15:12:35,593 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 15:12:35,596 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2025-03-04 15:12:35,596 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 149 flow [2025-03-04 15:12:35,597 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 15:12:35,597 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:35,597 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:12:35,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:12:35,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:12:35,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:35,598 INFO L85 PathProgramCache]: Analyzing trace with hash -723281851, now seen corresponding path program 1 times [2025-03-04 15:12:35,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:35,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177627939] [2025-03-04 15:12:35,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:35,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:35,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:12:35,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:12:35,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:35,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:35,752 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 15:12:35,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:35,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177627939] [2025-03-04 15:12:35,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177627939] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:35,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:35,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:12:35,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705648637] [2025-03-04 15:12:35,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:35,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:12:35,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:35,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:12:35,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:12:35,758 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:35,758 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 15:12:35,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:35,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:35,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:39,558 INFO L124 PetriNetUnfolderBase]: 53386/70284 cut-off events. [2025-03-04 15:12:39,559 INFO L125 PetriNetUnfolderBase]: For 4429/4429 co-relation queries the response was YES. [2025-03-04 15:12:39,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159192 conditions, 70284 events. 53386/70284 cut-off events. For 4429/4429 co-relation queries the response was YES. Maximal size of possible extension queue 2057. Compared 411376 event pairs, 16102 based on Foata normal form. 0/63501 useless extension candidates. Maximal degree in co-relation 159181. Up to 60977 conditions per place. [2025-03-04 15:12:39,940 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 63 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2025-03-04 15:12:39,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 72 transitions, 325 flow [2025-03-04 15:12:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:12:39,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:12:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-03-04 15:12:39,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5098039215686274 [2025-03-04 15:12:39,942 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 149 flow. Second operand 4 states and 104 transitions. [2025-03-04 15:12:39,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 72 transitions, 325 flow [2025-03-04 15:12:39,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 72 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:12:39,962 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 138 flow [2025-03-04 15:12:39,962 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2025-03-04 15:12:39,963 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2025-03-04 15:12:39,963 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 138 flow [2025-03-04 15:12:39,963 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 15:12:39,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:39,963 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:12:39,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:12:39,964 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:12:39,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:39,966 INFO L85 PathProgramCache]: Analyzing trace with hash -723281850, now seen corresponding path program 1 times [2025-03-04 15:12:39,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:39,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376753417] [2025-03-04 15:12:39,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:39,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:39,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:12:39,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:12:39,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:39,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:40,088 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 15:12:40,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:40,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376753417] [2025-03-04 15:12:40,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376753417] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:40,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:40,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:12:40,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075566327] [2025-03-04 15:12:40,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:40,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:12:40,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:40,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:12:40,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:12:40,090 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:40,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 138 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 15:12:40,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:40,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:40,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:43,439 INFO L124 PetriNetUnfolderBase]: 40367/53355 cut-off events. [2025-03-04 15:12:43,439 INFO L125 PetriNetUnfolderBase]: For 8236/8236 co-relation queries the response was YES. [2025-03-04 15:12:43,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118851 conditions, 53355 events. 40367/53355 cut-off events. For 8236/8236 co-relation queries the response was YES. Maximal size of possible extension queue 1471. Compared 304023 event pairs, 8821 based on Foata normal form. 0/51320 useless extension candidates. Maximal degree in co-relation 118839. Up to 25633 conditions per place. [2025-03-04 15:12:43,656 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 90 selfloop transitions, 9 changer transitions 0/103 dead transitions. [2025-03-04 15:12:43,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 103 transitions, 466 flow [2025-03-04 15:12:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:12:43,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:12:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-03-04 15:12:43,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6617647058823529 [2025-03-04 15:12:43,658 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 138 flow. Second operand 4 states and 135 transitions. [2025-03-04 15:12:43,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 103 transitions, 466 flow [2025-03-04 15:12:43,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 103 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:12:43,667 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 190 flow [2025-03-04 15:12:43,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2025-03-04 15:12:43,667 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2025-03-04 15:12:43,667 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 190 flow [2025-03-04 15:12:43,667 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 15:12:43,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:43,667 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 15:12:43,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:12:43,668 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 15:12:43,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:43,668 INFO L85 PathProgramCache]: Analyzing trace with hash -446572498, now seen corresponding path program 1 times [2025-03-04 15:12:43,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:43,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074772864] [2025-03-04 15:12:43,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:43,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:43,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 15:12:43,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 15:12:43,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:43,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:43,811 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 15:12:43,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:43,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074772864] [2025-03-04 15:12:43,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074772864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:43,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:43,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:12:43,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764242778] [2025-03-04 15:12:43,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:43,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:12:43,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:43,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:12:43,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:12:43,813 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:43,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 190 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 15:12:43,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:43,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:43,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:46,512 INFO L124 PetriNetUnfolderBase]: 35759/47127 cut-off events. [2025-03-04 15:12:46,512 INFO L125 PetriNetUnfolderBase]: For 19320/19320 co-relation queries the response was YES. [2025-03-04 15:12:46,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114646 conditions, 47127 events. 35759/47127 cut-off events. For 19320/19320 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 265547 event pairs, 7023 based on Foata normal form. 0/46880 useless extension candidates. Maximal degree in co-relation 114633. Up to 18416 conditions per place. [2025-03-04 15:12:46,765 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 111 selfloop transitions, 13 changer transitions 4/132 dead transitions. [2025-03-04 15:12:46,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 132 transitions, 636 flow [2025-03-04 15:12:46,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:12:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:12:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 172 transitions. [2025-03-04 15:12:46,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6745098039215687 [2025-03-04 15:12:46,766 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 190 flow. Second operand 5 states and 172 transitions. [2025-03-04 15:12:46,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 132 transitions, 636 flow [2025-03-04 15:12:46,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 132 transitions, 618 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-03-04 15:12:46,791 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 214 flow [2025-03-04 15:12:46,791 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 15:12:46,792 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2025-03-04 15:12:46,792 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 214 flow [2025-03-04 15:12:46,792 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 15:12:46,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:12:46,792 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 15:12:46,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:12:46,792 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 15:12:46,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:12:46,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1994176005, now seen corresponding path program 1 times [2025-03-04 15:12:46,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:12:46,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476041431] [2025-03-04 15:12:46,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:12:46,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:12:46,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 15:12:46,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 15:12:46,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:12:46,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:12:46,961 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 15:12:46,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:12:46,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476041431] [2025-03-04 15:12:46,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476041431] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:12:46,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:12:46,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:12:46,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828232695] [2025-03-04 15:12:46,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:12:46,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:12:46,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:12:46,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:12:46,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:12:46,963 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 51 [2025-03-04 15:12:46,963 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 15:12:46,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:12:46,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 51 [2025-03-04 15:12:46,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:12:49,852 INFO L124 PetriNetUnfolderBase]: 34799/45831 cut-off events. [2025-03-04 15:12:49,852 INFO L125 PetriNetUnfolderBase]: For 28816/28816 co-relation queries the response was YES. [2025-03-04 15:12:49,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113177 conditions, 45831 events. 34799/45831 cut-off events. For 28816/28816 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 259170 event pairs, 6855 based on Foata normal form. 224/46032 useless extension candidates. Maximal degree in co-relation 113163. Up to 18416 conditions per place. [2025-03-04 15:12:49,958 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 0 selfloop transitions, 0 changer transitions 124/124 dead transitions. [2025-03-04 15:12:49,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 124 transitions, 588 flow [2025-03-04 15:12:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:12:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:12:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2025-03-04 15:12:49,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5620915032679739 [2025-03-04 15:12:49,960 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 214 flow. Second operand 6 states and 172 transitions. [2025-03-04 15:12:49,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 124 transitions, 588 flow [2025-03-04 15:12:51,274 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 15:12:51,275 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2025-03-04 15:12:51,275 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 15:12:51,276 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2025-03-04 15:12:51,276 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2025-03-04 15:12:51,276 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 15:12:51,278 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2025-03-04 15:12:51,279 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2025-03-04 15:12:51,280 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2025-03-04 15:12:51,280 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2025-03-04 15:12:51,280 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2025-03-04 15:12:51,280 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2025-03-04 15:12:51,280 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2025-03-04 15:12:51,280 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2025-03-04 15:12:51,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:12:51,280 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-04 15:12:51,284 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:12:51,284 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:12:51,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:12:51 BasicIcfg [2025-03-04 15:12:51,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:12:51,292 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:12:51,292 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:12:51,292 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:12:51,292 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:12:29" (3/4) ... [2025-03-04 15:12:51,294 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:12:51,295 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 15:12:51,296 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 15:12:51,296 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 15:12:51,296 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-03-04 15:12:51,298 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2025-03-04 15:12:51,299 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-04 15:12:51,299 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-04 15:12:51,299 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 15:12:51,356 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:12:51,356 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:12:51,356 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:12:51,357 INFO L158 Benchmark]: Toolchain (without parser) took 23135.85ms. Allocated memory was 142.6MB in the beginning and 8.2GB in the end (delta: 8.0GB). Free memory was 111.2MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2025-03-04 15:12:51,358 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:12:51,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.01ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 88.1MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 15:12:51,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.51ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 85.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:12:51,360 INFO L158 Benchmark]: Boogie Preprocessor took 42.76ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 82.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:12:51,360 INFO L158 Benchmark]: IcfgBuilder took 579.95ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 94.8MB in the end (delta: -11.9MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2025-03-04 15:12:51,361 INFO L158 Benchmark]: TraceAbstraction took 22080.75ms. Allocated memory was 142.6MB in the beginning and 8.2GB in the end (delta: 8.0GB). Free memory was 94.0MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. [2025-03-04 15:12:51,361 INFO L158 Benchmark]: Witness Printer took 64.73ms. Allocated memory is still 8.2GB. Free memory was 5.6GB in the beginning and 5.6GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:12:51,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.01ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 88.1MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.51ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 85.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.76ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 82.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 579.95ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 94.8MB in the end (delta: -11.9MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * TraceAbstraction took 22080.75ms. Allocated memory was 142.6MB in the beginning and 8.2GB in the end (delta: 8.0GB). Free memory was 94.0MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. * Witness Printer took 64.73ms. Allocated memory is still 8.2GB. Free memory was 5.6GB in the beginning and 5.6GB 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: 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: 22.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 320 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 599 IncrementalHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 0 mSDtfsCounter, 599 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=214occurred in iteration=4, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s 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 15:12:51,378 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