./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix016_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/mix016_pso.opt_tso.opt.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 2135a1882b0d27098e68a161f8694a670a72069d61776627736073247b8e4e23 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:33:48,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:33:48,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:33:48,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:33:48,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:33:48,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:33:48,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:33:48,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:33:48,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:33:48,831 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:33:48,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:33:48,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:33:48,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:33:48,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:33:48,831 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:33:48,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:33:48,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:33:48,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:33:48,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:33:48,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:33:48,833 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:33:48,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:33:48,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:33:48,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:33:48,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:33:48,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:33:48,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:33:48,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:33:48,834 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 -> 2135a1882b0d27098e68a161f8694a670a72069d61776627736073247b8e4e23 [2025-02-06 18:33:49,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:33:49,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:33:49,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:33:49,092 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:33:49,092 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:33:49,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix016_pso.opt_tso.opt.i [2025-02-06 18:33:50,252 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/481a9a38f/2448a8ace0d44cc18a44aca04adc7899/FLAG0f07c5258 [2025-02-06 18:33:50,538 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:33:50,539 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix016_pso.opt_tso.opt.i [2025-02-06 18:33:50,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/481a9a38f/2448a8ace0d44cc18a44aca04adc7899/FLAG0f07c5258 [2025-02-06 18:33:50,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/481a9a38f/2448a8ace0d44cc18a44aca04adc7899 [2025-02-06 18:33:50,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:33:50,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:33:50,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:33:50,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:33:50,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:33:50,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:50,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e35fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50, skipping insertion in model container [2025-02-06 18:33:50,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:50,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:33:50,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:33:50,928 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:33:50,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:33:50,998 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:33:50,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50 WrapperNode [2025-02-06 18:33:50,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:33:50,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:33:50,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:33:50,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:33:51,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,043 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 145 [2025-02-06 18:33:51,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:33:51,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:33:51,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:33:51,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:33:51,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,084 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]. [2025-02-06 18:33:51,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,094 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:33:51,111 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:33:51,111 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:33:51,111 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:33:51,112 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (1/1) ... [2025-02-06 18:33:51,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:33:51,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:33:51,141 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) [2025-02-06 18:33:51,145 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 [2025-02-06 18:33:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:33:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:33:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 18:33:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 18:33:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 18:33:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 18:33:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 18:33:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 18:33:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:33:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:33:51,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:33:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:33:51,165 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:33:51,274 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:33:51,275 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:33:51,534 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:33:51,534 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:33:51,701 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:33:51,701 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:33:51,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:33:51 BoogieIcfgContainer [2025-02-06 18:33:51,701 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:33:51,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:33:51,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:33:51,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:33:51,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:33:50" (1/3) ... [2025-02-06 18:33:51,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131bcd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:33:51, skipping insertion in model container [2025-02-06 18:33:51,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:33:50" (2/3) ... [2025-02-06 18:33:51,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131bcd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:33:51, skipping insertion in model container [2025-02-06 18:33:51,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:33:51" (3/3) ... [2025-02-06 18:33:51,724 INFO L128 eAbstractionObserver]: Analyzing ICFG mix016_pso.opt_tso.opt.i [2025-02-06 18:33:51,736 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:33:51,737 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix016_pso.opt_tso.opt.i that has 4 procedures, 41 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-06 18:33:51,738 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:33:51,784 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 18:33:51,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 92 flow [2025-02-06 18:33:51,834 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-02-06 18:33:51,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:33:51,839 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 79 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. [2025-02-06 18:33:51,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 40 transitions, 92 flow [2025-02-06 18:33:51,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 37 transitions, 83 flow [2025-02-06 18:33:51,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:33:51,860 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;@11150529, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:33:51,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-06 18:33:51,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:33:51,868 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-06 18:33:51,868 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:33:51,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:33:51,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:33:51,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:33:51,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:33:51,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1115503174, now seen corresponding path program 1 times [2025-02-06 18:33:51,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:33:51,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411546357] [2025-02-06 18:33:51,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:33:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:33:51,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:33:51,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:33:51,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:33:51,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:33:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:33:52,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:33:52,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411546357] [2025-02-06 18:33:52,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411546357] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:33:52,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:33:52,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:33:52,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599633567] [2025-02-06 18:33:52,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:33:52,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:33:52,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:33:52,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:33:52,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:33:52,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:33:52,075 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) [2025-02-06 18:33:52,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:33:52,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:33:52,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:33:53,036 INFO L124 PetriNetUnfolderBase]: 6779/9717 cut-off events. [2025-02-06 18:33:53,036 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-02-06 18:33:53,054 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 52398 event pairs, 2409 based on Foata normal form. 0/8458 useless extension candidates. Maximal degree in co-relation 19521. Up to 7845 conditions per place. [2025-02-06 18:33:53,097 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 53 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2025-02-06 18:33:53,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 249 flow [2025-02-06 18:33:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:33:53,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:33:53,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-02-06 18:33:53,106 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2025-02-06 18:33:53,107 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 83 flow. Second operand 3 states and 81 transitions. [2025-02-06 18:33:53,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 249 flow [2025-02-06 18:33:53,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 244 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:33:53,116 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 116 flow [2025-02-06 18:33:53,118 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} [2025-02-06 18:33:53,121 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2025-02-06 18:33:53,122 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 116 flow [2025-02-06 18:33:53,122 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) [2025-02-06 18:33:53,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:33:53,122 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:33:53,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:33:53,122 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:33:53,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:33:53,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1409475453, now seen corresponding path program 1 times [2025-02-06 18:33:53,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:33:53,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524115004] [2025-02-06 18:33:53,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:33:53,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:33:53,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:33:53,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:33:53,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:33:53,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:33:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:33:53,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:33:53,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524115004] [2025-02-06 18:33:53,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524115004] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:33:53,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:33:53,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:33:53,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595923649] [2025-02-06 18:33:53,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:33:53,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:33:53,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:33:53,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:33:53,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:33:53,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:33:53,311 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) [2025-02-06 18:33:53,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:33:53,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:33:53,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:33:53,896 INFO L124 PetriNetUnfolderBase]: 5456/7812 cut-off events. [2025-02-06 18:33:53,896 INFO L125 PetriNetUnfolderBase]: For 500/500 co-relation queries the response was YES. [2025-02-06 18:33:53,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17614 conditions, 7812 events. 5456/7812 cut-off events. For 500/500 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 40904 event pairs, 1908 based on Foata normal form. 0/7261 useless extension candidates. Maximal degree in co-relation 17603. Up to 5939 conditions per place. [2025-02-06 18:33:53,955 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2025-02-06 18:33:53,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 57 transitions, 256 flow [2025-02-06 18:33:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:33:53,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:33:53,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-02-06 18:33:53,956 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.50625 [2025-02-06 18:33:53,956 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 116 flow. Second operand 4 states and 81 transitions. [2025-02-06 18:33:53,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 57 transitions, 256 flow [2025-02-06 18:33:53,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:33:53,959 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 108 flow [2025-02-06 18:33:53,959 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, 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=108, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2025-02-06 18:33:53,960 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2025-02-06 18:33:53,960 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 108 flow [2025-02-06 18:33:53,960 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) [2025-02-06 18:33:53,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:33:53,960 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:33:53,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:33:53,960 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:33:53,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:33:53,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1409475454, now seen corresponding path program 1 times [2025-02-06 18:33:53,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:33:53,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659921317] [2025-02-06 18:33:53,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:33:53,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:33:53,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:33:53,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:33:53,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:33:53,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:33:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:33:54,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:33:54,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659921317] [2025-02-06 18:33:54,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659921317] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:33:54,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:33:54,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:33:54,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475556770] [2025-02-06 18:33:54,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:33:54,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:33:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:33:54,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:33:54,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:33:54,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:33:54,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 108 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) [2025-02-06 18:33:54,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:33:54,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:33:54,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:33:54,654 INFO L124 PetriNetUnfolderBase]: 4487/6429 cut-off events. [2025-02-06 18:33:54,654 INFO L125 PetriNetUnfolderBase]: For 1182/1182 co-relation queries the response was YES. [2025-02-06 18:33:54,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14301 conditions, 6429 events. 4487/6429 cut-off events. For 1182/1182 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 32873 event pairs, 1333 based on Foata normal form. 0/6334 useless extension candidates. Maximal degree in co-relation 14289. Up to 2756 conditions per place. [2025-02-06 18:33:54,682 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 68 selfloop transitions, 7 changer transitions 3/81 dead transitions. [2025-02-06 18:33:54,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 81 transitions, 364 flow [2025-02-06 18:33:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:33:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:33:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2025-02-06 18:33:54,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65625 [2025-02-06 18:33:54,685 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 108 flow. Second operand 4 states and 105 transitions. [2025-02-06 18:33:54,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 81 transitions, 364 flow [2025-02-06 18:33:54,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 81 transitions, 359 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:33:54,689 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 129 flow [2025-02-06 18:33:54,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2025-02-06 18:33:54,690 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 1 predicate places. [2025-02-06 18:33:54,690 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 129 flow [2025-02-06 18:33:54,690 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) [2025-02-06 18:33:54,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:33:54,691 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] [2025-02-06 18:33:54,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:33:54,691 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:33:54,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:33:54,692 INFO L85 PathProgramCache]: Analyzing trace with hash -417014344, now seen corresponding path program 1 times [2025-02-06 18:33:54,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:33:54,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708073524] [2025-02-06 18:33:54,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:33:54,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:33:54,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:33:54,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:33:54,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:33:54,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:33:54,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:33:54,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:33:54,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708073524] [2025-02-06 18:33:54,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708073524] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:33:54,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:33:54,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:33:54,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869639059] [2025-02-06 18:33:54,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:33:54,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:33:54,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:33:54,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:33:54,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:33:54,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:33:54,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 129 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) [2025-02-06 18:33:54,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:33:54,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:33:54,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:33:55,348 INFO L124 PetriNetUnfolderBase]: 4171/5973 cut-off events. [2025-02-06 18:33:55,349 INFO L125 PetriNetUnfolderBase]: For 2730/2730 co-relation queries the response was YES. [2025-02-06 18:33:55,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14376 conditions, 5973 events. 4171/5973 cut-off events. For 2730/2730 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 30665 event pairs, 1263 based on Foata normal form. 84/6046 useless extension candidates. Maximal degree in co-relation 14363. Up to 2756 conditions per place. [2025-02-06 18:33:55,361 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2025-02-06 18:33:55,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 343 flow [2025-02-06 18:33:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:33:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:33:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2025-02-06 18:33:55,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.525 [2025-02-06 18:33:55,363 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 129 flow. Second operand 5 states and 105 transitions. [2025-02-06 18:33:55,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 343 flow [2025-02-06 18:33:55,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 75 transitions, 319 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-06 18:33:55,368 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-02-06 18:33:55,368 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} [2025-02-06 18:33:55,368 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2025-02-06 18:33:55,368 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-02-06 18:33:55,368 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) [2025-02-06 18:33:55,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-06 18:33:55,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-06 18:33:55,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-06 18:33:55,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-06 18:33:55,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-06 18:33:55,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-06 18:33:55,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:33:55,372 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 18:33:55,376 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:33:55,376 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:33:55,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:33:55 BasicIcfg [2025-02-06 18:33:55,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:33:55,380 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:33:55,380 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:33:55,381 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:33:55,381 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:33:51" (3/4) ... [2025-02-06 18:33:55,382 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:33:55,384 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 18:33:55,384 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 18:33:55,384 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 18:33:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2025-02-06 18:33:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 18:33:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-06 18:33:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 18:33:55,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:33:55,440 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:33:55,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:33:55,441 INFO L158 Benchmark]: Toolchain (without parser) took 4861.75ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 134.1MB in the beginning and 356.9MB in the end (delta: -222.9MB). Peak memory consumption was 279.8MB. Max. memory is 16.1GB. [2025-02-06 18:33:55,441 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 226.5MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:33:55,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.92ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 110.4MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 18:33:55,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.82ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 107.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:33:55,441 INFO L158 Benchmark]: Boogie Preprocessor took 65.83ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 104.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:33:55,442 INFO L158 Benchmark]: IcfgBuilder took 590.82ms. Allocated memory is still 167.8MB. Free memory was 104.5MB in the beginning and 46.2MB in the end (delta: 58.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-06 18:33:55,442 INFO L158 Benchmark]: TraceAbstraction took 3675.91ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 45.8MB in the beginning and 365.3MB in the end (delta: -319.5MB). Peak memory consumption was 397.2MB. Max. memory is 16.1GB. [2025-02-06 18:33:55,442 INFO L158 Benchmark]: Witness Printer took 59.74ms. Allocated memory is still 671.1MB. Free memory was 365.3MB in the beginning and 356.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:33:55,443 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 226.5MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.92ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 110.4MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.82ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 107.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.83ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 104.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 590.82ms. Allocated memory is still 167.8MB. Free memory was 104.5MB in the beginning and 46.2MB in the end (delta: 58.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3675.91ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 45.8MB in the beginning and 365.3MB in the end (delta: -319.5MB). Peak memory consumption was 397.2MB. Max. memory is 16.1GB. * Witness Printer took 59.74ms. Allocated memory is still 671.1MB. Free memory was 365.3MB in the beginning and 356.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: 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: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 339 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=129occurred in iteration=3, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s 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! [2025-02-06 18:33:55,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE