./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix019.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/mix019.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 67b3041d4ade18f863c3144705a5a5c36c735377f16a3c3ca7c2065b436994d1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:34:01,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:34:01,197 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:34:01,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:34:01,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:34:01,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:34:01,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:34:01,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:34:01,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:34:01,233 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:34:01,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:34:01,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:34:01,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:34:01,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:34:01,234 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:34:01,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:34:01,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:34:01,234 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:34:01,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:34:01,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:34:01,235 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:34:01,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:34:01,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:34:01,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:34:01,236 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 -> 67b3041d4ade18f863c3144705a5a5c36c735377f16a3c3ca7c2065b436994d1 [2025-02-06 18:34:01,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:34:01,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:34:01,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:34:01,538 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:34:01,539 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:34:01,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix019.opt.i [2025-02-06 18:34:02,795 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab0bceb05/88917e7c29254759893d0c672308298c/FLAG30095be6b [2025-02-06 18:34:03,133 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:34:03,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix019.opt.i [2025-02-06 18:34:03,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab0bceb05/88917e7c29254759893d0c672308298c/FLAG30095be6b [2025-02-06 18:34:03,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab0bceb05/88917e7c29254759893d0c672308298c [2025-02-06 18:34:03,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:34:03,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:34:03,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:34:03,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:34:03,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:34:03,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24db02ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03, skipping insertion in model container [2025-02-06 18:34:03,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:34:03,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:34:03,749 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:34:03,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:34:03,861 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:34:03,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03 WrapperNode [2025-02-06 18:34:03,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:34:03,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:34:03,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:34:03,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:34:03,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,929 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 144 [2025-02-06 18:34:03,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:34:03,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:34:03,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:34:03,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:34:03,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,954 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,980 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 18:34:03,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,987 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:03,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:34:03,994 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:34:03,995 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:34:03,995 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:34:03,996 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (1/1) ... [2025-02-06 18:34:04,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:34:04,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:34:04,038 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 18:34:04,040 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 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 18:34:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 18:34:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 18:34:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:34:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:34:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:34:04,061 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 18:34:04,167 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:34:04,169 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:34:04,523 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:34:04,523 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:34:04,778 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:34:04,779 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:34:04,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:34:04 BoogieIcfgContainer [2025-02-06 18:34:04,780 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:34:04,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:34:04,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:34:04,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:34:04,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:34:03" (1/3) ... [2025-02-06 18:34:04,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cf4aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:34:04, skipping insertion in model container [2025-02-06 18:34:04,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:34:03" (2/3) ... [2025-02-06 18:34:04,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cf4aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:34:04, skipping insertion in model container [2025-02-06 18:34:04,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:34:04" (3/3) ... [2025-02-06 18:34:04,815 INFO L128 eAbstractionObserver]: Analyzing ICFG mix019.opt.i [2025-02-06 18:34:04,830 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:34:04,831 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix019.opt.i that has 4 procedures, 41 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-06 18:34:04,832 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:34:04,895 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 18:34:04,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 92 flow [2025-02-06 18:34:04,967 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-02-06 18:34:04,971 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:34:04,974 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 88 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 18:34:04,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 40 transitions, 92 flow [2025-02-06 18:34:04,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 37 transitions, 83 flow [2025-02-06 18:34:04,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:34:05,008 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;@71764a8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:34:05,011 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-06 18:34:05,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:34:05,019 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-06 18:34:05,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:34:05,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:34:05,021 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:34:05,023 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 18:34:05,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:34:05,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1202738739, now seen corresponding path program 1 times [2025-02-06 18:34:05,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:34:05,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940584066] [2025-02-06 18:34:05,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:34:05,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:34:05,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:34:05,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:34:05,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:34:05,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:34:05,287 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 18:34:05,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:34:05,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940584066] [2025-02-06 18:34:05,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940584066] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:34:05,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:34:05,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:34:05,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60916567] [2025-02-06 18:34:05,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:34:05,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:34:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:34:05,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:34:05,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:34:05,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:34:05,324 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 18:34:05,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:34:05,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:34:05,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:34:06,670 INFO L124 PetriNetUnfolderBase]: 6779/9717 cut-off events. [2025-02-06 18:34:06,670 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-02-06 18:34:06,699 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 365. Compared 52700 event pairs, 2409 based on Foata normal form. 0/8457 useless extension candidates. Maximal degree in co-relation 19521. Up to 7845 conditions per place. [2025-02-06 18:34:06,753 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 53 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2025-02-06 18:34:06,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 249 flow [2025-02-06 18:34:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:34:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:34:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-02-06 18:34:06,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2025-02-06 18:34:06,766 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 83 flow. Second operand 3 states and 81 transitions. [2025-02-06 18:34:06,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 249 flow [2025-02-06 18:34:06,773 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 18:34:06,778 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 116 flow [2025-02-06 18:34:06,781 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 18:34:06,785 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2025-02-06 18:34:06,785 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 116 flow [2025-02-06 18:34:06,785 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 18:34:06,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:34:06,785 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:34:06,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:34:06,786 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 18:34:06,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:34:06,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2013432003, now seen corresponding path program 1 times [2025-02-06 18:34:06,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:34:06,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875598640] [2025-02-06 18:34:06,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:34:06,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:34:06,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:34:06,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:34:06,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:34:06,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:34:07,060 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 18:34:07,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:34:07,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875598640] [2025-02-06 18:34:07,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875598640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:34:07,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:34:07,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:34:07,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064726500] [2025-02-06 18:34:07,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:34:07,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:34:07,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:34:07,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:34:07,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:34:07,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:34:07,065 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 18:34:07,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:34:07,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:34:07,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:34:07,935 INFO L124 PetriNetUnfolderBase]: 5456/7812 cut-off events. [2025-02-06 18:34:07,937 INFO L125 PetriNetUnfolderBase]: For 508/508 co-relation queries the response was YES. [2025-02-06 18:34:07,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17614 conditions, 7812 events. 5456/7812 cut-off events. For 508/508 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 41287 event pairs, 1908 based on Foata normal form. 0/7260 useless extension candidates. Maximal degree in co-relation 17603. Up to 5939 conditions per place. [2025-02-06 18:34:08,055 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2025-02-06 18:34:08,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 57 transitions, 256 flow [2025-02-06 18:34:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:34:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:34:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-02-06 18:34:08,058 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.50625 [2025-02-06 18:34:08,058 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 116 flow. Second operand 4 states and 81 transitions. [2025-02-06 18:34:08,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 57 transitions, 256 flow [2025-02-06 18:34:08,060 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 18:34:08,063 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 108 flow [2025-02-06 18:34:08,064 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 18:34:08,064 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2025-02-06 18:34:08,065 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 108 flow [2025-02-06 18:34:08,065 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 18:34:08,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:34:08,065 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:34:08,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:34:08,066 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 18:34:08,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:34:08,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2013432002, now seen corresponding path program 1 times [2025-02-06 18:34:08,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:34:08,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117182171] [2025-02-06 18:34:08,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:34:08,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:34:08,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:34:08,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:34:08,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:34:08,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:34:08,204 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 18:34:08,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:34:08,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117182171] [2025-02-06 18:34:08,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117182171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:34:08,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:34:08,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:34:08,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326154773] [2025-02-06 18:34:08,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:34:08,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:34:08,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:34:08,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:34:08,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:34:08,208 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:34:08,208 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 18:34:08,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:34:08,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:34:08,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:34:08,951 INFO L124 PetriNetUnfolderBase]: 4487/6429 cut-off events. [2025-02-06 18:34:08,951 INFO L125 PetriNetUnfolderBase]: For 1198/1198 co-relation queries the response was YES. [2025-02-06 18:34:08,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14301 conditions, 6429 events. 4487/6429 cut-off events. For 1198/1198 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 33102 event pairs, 1333 based on Foata normal form. 0/6333 useless extension candidates. Maximal degree in co-relation 14289. Up to 2756 conditions per place. [2025-02-06 18:34:08,985 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 68 selfloop transitions, 7 changer transitions 3/81 dead transitions. [2025-02-06 18:34:08,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 81 transitions, 364 flow [2025-02-06 18:34:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:34:08,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:34:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2025-02-06 18:34:08,989 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65625 [2025-02-06 18:34:08,989 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 108 flow. Second operand 4 states and 105 transitions. [2025-02-06 18:34:08,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 81 transitions, 364 flow [2025-02-06 18:34:08,995 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 18:34:08,996 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 129 flow [2025-02-06 18:34:08,996 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 18:34:08,998 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 1 predicate places. [2025-02-06 18:34:08,998 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 129 flow [2025-02-06 18:34:08,998 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 18:34:08,998 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:34:08,998 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 18:34:08,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:34:08,998 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 18:34:08,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:34:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1752027364, now seen corresponding path program 1 times [2025-02-06 18:34:08,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:34:08,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485958008] [2025-02-06 18:34:08,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:34:08,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:34:09,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:34:09,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:34:09,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:34:09,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:34:09,216 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 18:34:09,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:34:09,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485958008] [2025-02-06 18:34:09,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485958008] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:34:09,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:34:09,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:34:09,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239109403] [2025-02-06 18:34:09,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:34:09,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:34:09,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:34:09,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:34:09,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:34:09,218 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2025-02-06 18:34:09,218 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 18:34:09,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:34:09,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2025-02-06 18:34:09,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:34:09,840 INFO L124 PetriNetUnfolderBase]: 4171/5973 cut-off events. [2025-02-06 18:34:09,841 INFO L125 PetriNetUnfolderBase]: For 2754/2754 co-relation queries the response was YES. [2025-02-06 18:34:09,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14376 conditions, 5973 events. 4171/5973 cut-off events. For 2754/2754 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 30929 event pairs, 1263 based on Foata normal form. 84/6045 useless extension candidates. Maximal degree in co-relation 14363. Up to 2756 conditions per place. [2025-02-06 18:34:09,854 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2025-02-06 18:34:09,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 343 flow [2025-02-06 18:34:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:34:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:34:09,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2025-02-06 18:34:09,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.525 [2025-02-06 18:34:09,856 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 129 flow. Second operand 5 states and 105 transitions. [2025-02-06 18:34:09,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 343 flow [2025-02-06 18:34:09,865 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 18:34:09,866 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-02-06 18:34:09,866 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 18:34:09,866 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2025-02-06 18:34:09,867 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-02-06 18:34:09,867 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 18:34:09,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-02-06 18:34:09,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-02-06 18:34:09,871 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-06 18:34:09,871 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-06 18:34:09,871 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-06 18:34:09,871 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-06 18:34:09,871 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-06 18:34:09,871 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-06 18:34:09,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:34:09,872 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 18:34:09,877 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:34:09,878 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:34:09,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:34:09 BasicIcfg [2025-02-06 18:34:09,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:34:09,885 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:34:09,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:34:09,886 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:34:09,886 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:34:04" (3/4) ... [2025-02-06 18:34:09,888 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:34:09,891 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 18:34:09,891 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 18:34:09,891 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 18:34:09,896 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2025-02-06 18:34:09,897 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-06 18:34:09,898 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-06 18:34:09,898 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 18:34:09,959 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:34:09,959 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:34:09,959 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:34:09,960 INFO L158 Benchmark]: Toolchain (without parser) took 6580.05ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 120.8MB in the beginning and 362.4MB in the end (delta: -241.6MB). Peak memory consumption was 258.4MB. Max. memory is 16.1GB. [2025-02-06 18:34:09,960 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 201.3MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:34:09,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.42ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 97.0MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 18:34:09,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.23ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 94.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:34:09,961 INFO L158 Benchmark]: Boogie Preprocessor took 60.16ms. Allocated memory is still 167.8MB. Free memory was 94.6MB in the beginning and 91.4MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:34:09,961 INFO L158 Benchmark]: IcfgBuilder took 785.34ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 34.3MB in the end (delta: 57.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-06 18:34:09,962 INFO L158 Benchmark]: TraceAbstraction took 5102.34ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 33.7MB in the beginning and 366.6MB in the end (delta: -332.9MB). Peak memory consumption was 384.2MB. Max. memory is 16.1GB. [2025-02-06 18:34:09,962 INFO L158 Benchmark]: Witness Printer took 73.86ms. Allocated memory is still 671.1MB. Free memory was 366.6MB in the beginning and 362.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:34:09,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 201.3MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.42ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 97.0MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.23ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 94.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.16ms. Allocated memory is still 167.8MB. Free memory was 94.6MB in the beginning and 91.4MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 785.34ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 34.3MB in the end (delta: 57.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5102.34ms. Allocated memory was 167.8MB in the beginning and 671.1MB in the end (delta: 503.3MB). Free memory was 33.7MB in the beginning and 366.6MB in the end (delta: -332.9MB). Peak memory consumption was 384.2MB. Max. memory is 16.1GB. * Witness Printer took 73.86ms. Allocated memory is still 671.1MB. Free memory was 366.6MB in the beginning and 362.4MB 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: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 781]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 781]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 826]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 826]: 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: 4.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s 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, 0.6s 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 18:34:09,980 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