./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix019_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix019_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3361d121b1701e03d91abe21b23341050c9e7b0bb70abe94dd0f34e8fd521162 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 13:56:56,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 13:56:56,288 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 13:56:56,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 13:56:56,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 13:56:56,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 13:56:56,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 13:56:56,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 13:56:56,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 13:56:56,317 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 13:56:56,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 13:56:56,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 13:56:56,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 13:56:56,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 13:56:56,318 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 13:56:56,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 13:56:56,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 13:56:56,318 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 13:56:56,319 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 13:56:56,319 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 13:56:56,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 13:56:56,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 13:56:56,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 13:56:56,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:56:56,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 13:56:56,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 13:56:56,321 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 13:56:56,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 13:56:56,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 13:56:56,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 13:56:56,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 13:56:56,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 13:56:56,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 13:56:56,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 13:56:56,323 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 3361d121b1701e03d91abe21b23341050c9e7b0bb70abe94dd0f34e8fd521162 [2025-02-08 13:56:56,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 13:56:56,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 13:56:56,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 13:56:56,637 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 13:56:56,637 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 13:56:56,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix019_power.oepc_pso.oepc_rmo.oepc.i [2025-02-08 13:56:57,983 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/320a9c3de/d5187f2d0d9b4b7d91ce999706a04bcd/FLAGab4dc4640 [2025-02-08 13:56:58,324 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 13:56:58,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix019_power.oepc_pso.oepc_rmo.oepc.i [2025-02-08 13:56:58,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/320a9c3de/d5187f2d0d9b4b7d91ce999706a04bcd/FLAGab4dc4640 [2025-02-08 13:56:58,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/320a9c3de/d5187f2d0d9b4b7d91ce999706a04bcd [2025-02-08 13:56:58,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 13:56:58,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 13:56:58,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 13:56:58,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 13:56:58,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 13:56:58,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:56:58" (1/1) ... [2025-02-08 13:56:58,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b141369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:58, skipping insertion in model container [2025-02-08 13:56:58,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:56:58" (1/1) ... [2025-02-08 13:56:58,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 13:56:58,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:56:58,916 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 13:56:58,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:56:59,011 INFO L204 MainTranslator]: Completed translation [2025-02-08 13:56:59,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59 WrapperNode [2025-02-08 13:56:59,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 13:56:59,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 13:56:59,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 13:56:59,013 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 13:56:59,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,049 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 122 [2025-02-08 13:56:59,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 13:56:59,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 13:56:59,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 13:56:59,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 13:56:59,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,078 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]. [2025-02-08 13:56:59,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,088 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 13:56:59,108 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 13:56:59,108 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 13:56:59,108 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 13:56:59,109 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (1/1) ... [2025-02-08 13:56:59,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:56:59,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:56:59,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 13:56:59,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 13:56:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 13:56:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 13:56:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 13:56:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 13:56:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 13:56:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 13:56:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 13:56:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 13:56:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 13:56:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 13:56:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 13:56:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 13:56:59,184 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 13:56:59,315 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 13:56:59,316 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 13:56:59,673 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 13:56:59,673 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 13:56:59,874 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 13:56:59,874 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 13:56:59,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:59 BoogieIcfgContainer [2025-02-08 13:56:59,875 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 13:56:59,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 13:56:59,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 13:56:59,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 13:56:59,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:56:58" (1/3) ... [2025-02-08 13:56:59,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f40d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:56:59, skipping insertion in model container [2025-02-08 13:56:59,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:59" (2/3) ... [2025-02-08 13:56:59,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f40d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:56:59, skipping insertion in model container [2025-02-08 13:56:59,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:59" (3/3) ... [2025-02-08 13:56:59,883 INFO L128 eAbstractionObserver]: Analyzing ICFG mix019_power.oepc_pso.oepc_rmo.oepc.i [2025-02-08 13:56:59,899 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 13:56:59,903 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix019_power.oepc_pso.oepc_rmo.oepc.i that has 4 procedures, 41 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-08 13:56:59,903 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 13:56:59,972 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 13:57:00,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 92 flow [2025-02-08 13:57:00,038 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-02-08 13:57:00,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:57:00,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 83 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-08 13:57:00,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 40 transitions, 92 flow [2025-02-08 13:57:00,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 37 transitions, 83 flow [2025-02-08 13:57:00,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 13:57:00,080 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;@a18ed4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 13:57:00,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-08 13:57:00,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 13:57:00,090 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-08 13:57:00,090 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:57:00,090 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:57:00,091 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:57:00,091 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:57:00,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:57:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash 552607668, now seen corresponding path program 1 times [2025-02-08 13:57:00,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:57:00,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980741336] [2025-02-08 13:57:00,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:57:00,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:57:00,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 13:57:00,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 13:57:00,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:57:00,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:57:00,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:57:00,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:57:00,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980741336] [2025-02-08 13:57:00,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980741336] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:57:00,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:57:00,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 13:57:00,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924315587] [2025-02-08 13:57:00,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:57:00,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:57:00,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:57:00,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:57:00,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:57:00,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-08 13:57:00,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:00,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:57:00,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-08 13:57:00,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:57:02,097 INFO L124 PetriNetUnfolderBase]: 6779/9717 cut-off events. [2025-02-08 13:57:02,098 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-02-08 13:57:02,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19532 conditions, 9717 events. 6779/9717 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 52490 event pairs, 2409 based on Foata normal form. 0/8464 useless extension candidates. Maximal degree in co-relation 19521. Up to 7845 conditions per place. [2025-02-08 13:57:02,185 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 53 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2025-02-08 13:57:02,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 249 flow [2025-02-08 13:57:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:57:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 13:57:02,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-02-08 13:57:02,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2025-02-08 13:57:02,200 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 83 flow. Second operand 3 states and 81 transitions. [2025-02-08 13:57:02,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 249 flow [2025-02-08 13:57:02,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 244 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 13:57:02,208 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 116 flow [2025-02-08 13:57:02,211 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2025-02-08 13:57:02,215 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2025-02-08 13:57:02,215 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 116 flow [2025-02-08 13:57:02,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:02,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:57:02,216 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:57:02,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 13:57:02,217 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:57:02,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:57:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1788650333, now seen corresponding path program 1 times [2025-02-08 13:57:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:57:02,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763627244] [2025-02-08 13:57:02,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:57:02,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:57:02,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 13:57:02,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 13:57:02,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:57:02,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:57:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:57:02,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:57:02,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763627244] [2025-02-08 13:57:02,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763627244] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:57:02,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:57:02,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:57:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109961067] [2025-02-08 13:57:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:57:02,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:57:02,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:57:02,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:57:02,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:57:02,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-08 13:57:02,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:02,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:57:02,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-08 13:57:02,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:57:03,432 INFO L124 PetriNetUnfolderBase]: 5684/8208 cut-off events. [2025-02-08 13:57:03,433 INFO L125 PetriNetUnfolderBase]: For 516/516 co-relation queries the response was YES. [2025-02-08 13:57:03,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18490 conditions, 8208 events. 5684/8208 cut-off events. For 516/516 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 43651 event pairs, 1624 based on Foata normal form. 0/7579 useless extension candidates. Maximal degree in co-relation 18479. Up to 4295 conditions per place. [2025-02-08 13:57:03,503 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 71 selfloop transitions, 10 changer transitions 3/87 dead transitions. [2025-02-08 13:57:03,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 396 flow [2025-02-08 13:57:03,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:57:03,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:57:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2025-02-08 13:57:03,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.69375 [2025-02-08 13:57:03,506 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 116 flow. Second operand 4 states and 111 transitions. [2025-02-08 13:57:03,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 396 flow [2025-02-08 13:57:03,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 87 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 13:57:03,510 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 172 flow [2025-02-08 13:57:03,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2025-02-08 13:57:03,511 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2025-02-08 13:57:03,511 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 172 flow [2025-02-08 13:57:03,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:03,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:57:03,512 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:57:03,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 13:57:03,512 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:57:03,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:57:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1788650332, now seen corresponding path program 1 times [2025-02-08 13:57:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:57:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914214067] [2025-02-08 13:57:03,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:57:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:57:03,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 13:57:03,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 13:57:03,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:57:03,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:57:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:57:03,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:57:03,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914214067] [2025-02-08 13:57:03,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914214067] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:57:03,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:57:03,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:57:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037828310] [2025-02-08 13:57:03,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:57:03,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:57:03,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:57:03,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:57:03,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:57:03,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-08 13:57:03,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:03,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:57:03,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-08 13:57:03,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:57:04,487 INFO L124 PetriNetUnfolderBase]: 4327/6213 cut-off events. [2025-02-08 13:57:04,487 INFO L125 PetriNetUnfolderBase]: For 4518/4518 co-relation queries the response was YES. [2025-02-08 13:57:04,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14615 conditions, 6213 events. 4327/6213 cut-off events. For 4518/4518 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 32163 event pairs, 1533 based on Foata normal form. 456/6664 useless extension candidates. Maximal degree in co-relation 14601. Up to 4340 conditions per place. [2025-02-08 13:57:04,522 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2025-02-08 13:57:04,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 57 transitions, 282 flow [2025-02-08 13:57:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:57:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:57:04,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-02-08 13:57:04,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.50625 [2025-02-08 13:57:04,524 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 172 flow. Second operand 4 states and 81 transitions. [2025-02-08 13:57:04,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 57 transitions, 282 flow [2025-02-08 13:57:04,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 264 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-02-08 13:57:04,584 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 120 flow [2025-02-08 13:57:04,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2025-02-08 13:57:04,585 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 1 predicate places. [2025-02-08 13:57:04,585 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 120 flow [2025-02-08 13:57:04,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:04,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:57:04,586 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] [2025-02-08 13:57:04,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 13:57:04,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 13:57:04,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:57:04,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1763517920, now seen corresponding path program 1 times [2025-02-08 13:57:04,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:57:04,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300572676] [2025-02-08 13:57:04,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:57:04,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:57:04,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 13:57:04,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 13:57:04,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:57:04,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:57:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:57:04,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:57:04,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300572676] [2025-02-08 13:57:04,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300572676] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:57:04,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:57:04,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 13:57:04,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74003991] [2025-02-08 13:57:04,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:57:04,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 13:57:04,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:57:04,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 13:57:04,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:57:04,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-08 13:57:04,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:04,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:57:04,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-08 13:57:04,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:57:05,484 INFO L124 PetriNetUnfolderBase]: 4171/5973 cut-off events. [2025-02-08 13:57:05,485 INFO L125 PetriNetUnfolderBase]: For 2448/2448 co-relation queries the response was YES. [2025-02-08 13:57:05,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13632 conditions, 5973 events. 4171/5973 cut-off events. For 2448/2448 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 30731 event pairs, 1263 based on Foata normal form. 84/6052 useless extension candidates. Maximal degree in co-relation 13619. Up to 2756 conditions per place. [2025-02-08 13:57:05,501 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2025-02-08 13:57:05,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 334 flow [2025-02-08 13:57:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 13:57:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 13:57:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2025-02-08 13:57:05,503 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.525 [2025-02-08 13:57:05,504 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 120 flow. Second operand 5 states and 105 transitions. [2025-02-08 13:57:05,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 334 flow [2025-02-08 13:57:05,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 75 transitions, 319 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 13:57:05,506 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-02-08 13:57:05,506 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2025-02-08 13:57:05,507 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2025-02-08 13:57:05,507 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-02-08 13:57:05,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:57:05,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-02-08 13:57:05,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-08 13:57:05,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-08 13:57:05,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-08 13:57:05,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-08 13:57:05,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-08 13:57:05,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-08 13:57:05,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 13:57:05,512 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 13:57:05,516 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 13:57:05,516 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 13:57:05,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:57:05 BasicIcfg [2025-02-08 13:57:05,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 13:57:05,521 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 13:57:05,521 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 13:57:05,522 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 13:57:05,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:59" (3/4) ... [2025-02-08 13:57:05,523 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 13:57:05,526 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 13:57:05,526 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 13:57:05,526 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 13:57:05,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2025-02-08 13:57:05,530 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 13:57:05,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 13:57:05,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 13:57:05,592 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 13:57:05,592 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 13:57:05,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 13:57:05,594 INFO L158 Benchmark]: Toolchain (without parser) took 7031.80ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 111.3MB in the beginning and 230.2MB in the end (delta: -118.9MB). Peak memory consumption was 238.3MB. Max. memory is 16.1GB. [2025-02-08 13:57:05,594 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:57:05,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.82ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 87.8MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 13:57:05,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.28ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 85.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:57:05,596 INFO L158 Benchmark]: Boogie Preprocessor took 57.45ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:57:05,596 INFO L158 Benchmark]: IcfgBuilder took 766.27ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 95.9MB in the end (delta: -13.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2025-02-08 13:57:05,597 INFO L158 Benchmark]: TraceAbstraction took 5644.18ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 95.9MB in the beginning and 234.3MB in the end (delta: -138.5MB). Peak memory consumption was 364.8MB. Max. memory is 16.1GB. [2025-02-08 13:57:05,597 INFO L158 Benchmark]: Witness Printer took 70.85ms. Allocated memory is still 503.3MB. Free memory was 234.3MB in the beginning and 230.2MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:57:05,599 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.82ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 87.8MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.28ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 85.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.45ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 82.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 766.27ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 95.9MB in the end (delta: -13.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5644.18ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 95.9MB in the beginning and 234.3MB in the end (delta: -138.5MB). Peak memory consumption was 364.8MB. Max. memory is 16.1GB. * Witness Printer took 70.85ms. Allocated memory is still 503.3MB. Free memory was 234.3MB in the beginning and 230.2MB 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: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: 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 7 procedures, 72 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 0 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 159 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 13:57:05,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE