./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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/safe035_power.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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:40:09,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:40:09,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:40:09,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:40:09,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:40:09,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:40:09,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:40:09,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:40:09,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:40:09,188 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:40:09,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:40:09,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:40:09,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:40:09,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:40:09,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:40:09,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:40:09,191 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:40:09,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:40:09,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:40:09,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:40:09,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:40:09,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:40:09,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:40:09,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:40:09,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:40:09,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:40:09,193 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 -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2025-01-10 06:40:09,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:40:09,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:40:09,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:40:09,437 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:40:09,438 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:40:09,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-01-10 06:40:10,620 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c33b3473a/74cadfbdc50a446a9b3e4dd4621433ff/FLAG9ee012a23 [2025-01-10 06:40:10,954 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:40:10,955 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-01-10 06:40:10,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c33b3473a/74cadfbdc50a446a9b3e4dd4621433ff/FLAG9ee012a23 [2025-01-10 06:40:10,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c33b3473a/74cadfbdc50a446a9b3e4dd4621433ff [2025-01-10 06:40:10,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:40:10,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:40:10,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:40:10,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:40:10,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:40:10,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:10,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3557c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:10, skipping insertion in model container [2025-01-10 06:40:10,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:40:10" (1/1) ... [2025-01-10 06:40:11,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:40:11,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:40:11,369 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:40:11,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:40:11,466 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:40:11,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11 WrapperNode [2025-01-10 06:40:11,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:40:11,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:40:11,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:40:11,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:40:11,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,516 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 171 [2025-01-10 06:40:11,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:40:11,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:40:11,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:40:11,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:40:11,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,538 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]. [2025-01-10 06:40:11,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,544 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:40:11,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:40:11,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:40:11,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:40:11,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (1/1) ... [2025-01-10 06:40:11,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:40:11,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:40:11,574 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) [2025-01-10 06:40:11,578 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 [2025-01-10 06:40:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:40:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:40:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-01-10 06:40:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-01-10 06:40:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-01-10 06:40:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-01-10 06:40:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-01-10 06:40:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-01-10 06:40:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:40:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:40:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:40:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:40:11,594 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:40:11,701 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:40:11,703 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:40:12,004 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:40:12,004 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:40:12,202 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:40:12,202 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:40:12,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:12 BoogieIcfgContainer [2025-01-10 06:40:12,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:40:12,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:40:12,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:40:12,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:40:12,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:40:10" (1/3) ... [2025-01-10 06:40:12,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1b474a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:40:12, skipping insertion in model container [2025-01-10 06:40:12,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:40:11" (2/3) ... [2025-01-10 06:40:12,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1b474a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:40:12, skipping insertion in model container [2025-01-10 06:40:12,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:12" (3/3) ... [2025-01-10 06:40:12,209 INFO L128 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2025-01-10 06:40:12,219 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:40:12,221 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe035_power.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-01-10 06:40:12,221 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:40:12,271 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:40:12,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2025-01-10 06:40:12,312 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-01-10 06:40:12,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:40:12,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 06:40:12,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2025-01-10 06:40:12,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 39 transitions, 87 flow [2025-01-10 06:40:12,322 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:40:12,329 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;@3ef209f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:40:12,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-01-10 06:40:12,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:40:12,335 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2025-01-10 06:40:12,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:40:12,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:12,336 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:40:12,336 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:12,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:12,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1059153671, now seen corresponding path program 1 times [2025-01-10 06:40:12,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:12,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901801535] [2025-01-10 06:40:12,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:12,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:12,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:40:12,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:40:12,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:12,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:12,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901801535] [2025-01-10 06:40:12,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901801535] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:12,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:12,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:40:12,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524629308] [2025-01-10 06:40:12,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:12,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:40:12,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:12,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:40:12,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:40:12,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-01-10 06:40:12,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2025-01-10 06:40:12,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:12,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-01-10 06:40:12,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:13,964 INFO L124 PetriNetUnfolderBase]: 4989/7129 cut-off events. [2025-01-10 06:40:13,965 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-01-10 06:40:13,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14334 conditions, 7129 events. 4989/7129 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 39002 event pairs, 4989 based on Foata normal form. 0/6199 useless extension candidates. Maximal degree in co-relation 14323. Up to 7102 conditions per place. [2025-01-10 06:40:14,014 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 28 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2025-01-10 06:40:14,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 139 flow [2025-01-10 06:40:14,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:40:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:40:14,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2025-01-10 06:40:14,032 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2025-01-10 06:40:14,033 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 87 flow. Second operand 3 states and 62 transitions. [2025-01-10 06:40:14,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 139 flow [2025-01-10 06:40:14,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:40:14,042 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 80 flow [2025-01-10 06:40:14,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2025-01-10 06:40:14,049 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2025-01-10 06:40:14,049 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 80 flow [2025-01-10 06:40:14,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2025-01-10 06:40:14,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:14,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:40:14,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:40:14,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:14,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:14,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1059153672, now seen corresponding path program 1 times [2025-01-10 06:40:14,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:14,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219359921] [2025-01-10 06:40:14,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:14,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:14,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:40:14,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:40:14,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:14,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:14,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:14,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219359921] [2025-01-10 06:40:14,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219359921] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:14,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:14,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:40:14,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199074025] [2025-01-10 06:40:14,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:14,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:40:14,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:14,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:40:14,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:40:14,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-01-10 06:40:14,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2025-01-10 06:40:14,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:14,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-01-10 06:40:14,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:14,997 INFO L124 PetriNetUnfolderBase]: 3935/5697 cut-off events. [2025-01-10 06:40:14,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:40:15,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11451 conditions, 5697 events. 3935/5697 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 31603 event pairs, 1307 based on Foata normal form. 0/5242 useless extension candidates. Maximal degree in co-relation 11445. Up to 4503 conditions per place. [2025-01-10 06:40:15,024 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 46 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2025-01-10 06:40:15,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 57 transitions, 226 flow [2025-01-10 06:40:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:40:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:40:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-01-10 06:40:15,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6587301587301587 [2025-01-10 06:40:15,026 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 80 flow. Second operand 3 states and 83 transitions. [2025-01-10 06:40:15,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 57 transitions, 226 flow [2025-01-10 06:40:15,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:40:15,029 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 109 flow [2025-01-10 06:40:15,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2025-01-10 06:40:15,030 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2025-01-10 06:40:15,030 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 109 flow [2025-01-10 06:40:15,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2025-01-10 06:40:15,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:15,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:40:15,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:40:15,032 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:15,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash 974045189, now seen corresponding path program 1 times [2025-01-10 06:40:15,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:15,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401229849] [2025-01-10 06:40:15,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:15,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:15,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:40:15,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:40:15,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:15,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:15,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:15,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401229849] [2025-01-10 06:40:15,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401229849] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:15,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:15,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:40:15,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205702144] [2025-01-10 06:40:15,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:15,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:40:15,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:15,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:40:15,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:40:15,180 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-01-10 06:40:15,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-01-10 06:40:15,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:15,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-01-10 06:40:15,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:15,828 INFO L124 PetriNetUnfolderBase]: 3167/4597 cut-off events. [2025-01-10 06:40:15,829 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2025-01-10 06:40:15,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10281 conditions, 4597 events. 3167/4597 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 25070 event pairs, 837 based on Foata normal form. 0/4510 useless extension candidates. Maximal degree in co-relation 10273. Up to 1958 conditions per place. [2025-01-10 06:40:15,846 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 62 selfloop transitions, 7 changer transitions 3/79 dead transitions. [2025-01-10 06:40:15,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 79 transitions, 345 flow [2025-01-10 06:40:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:40:15,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:40:15,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2025-01-10 06:40:15,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2025-01-10 06:40:15,847 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 109 flow. Second operand 4 states and 115 transitions. [2025-01-10 06:40:15,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 79 transitions, 345 flow [2025-01-10 06:40:15,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 79 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:40:15,851 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 131 flow [2025-01-10 06:40:15,851 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2025-01-10 06:40:15,851 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2025-01-10 06:40:15,852 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 131 flow [2025-01-10 06:40:15,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-01-10 06:40:15,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:40:15,852 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:40:15,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:40:15,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:40:15,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:40:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash -200171123, now seen corresponding path program 1 times [2025-01-10 06:40:15,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:40:15,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806145689] [2025-01-10 06:40:15,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:40:15,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:40:15,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 06:40:15,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 06:40:15,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:40:15,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:40:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:40:16,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:40:16,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806145689] [2025-01-10 06:40:16,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806145689] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:40:16,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:40:16,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:40:16,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302044249] [2025-01-10 06:40:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:40:16,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:40:16,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:40:16,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:40:16,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:40:16,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-01-10 06:40:16,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-01-10 06:40:16,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:40:16,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-01-10 06:40:16,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:40:16,518 INFO L124 PetriNetUnfolderBase]: 2899/4209 cut-off events. [2025-01-10 06:40:16,518 INFO L125 PetriNetUnfolderBase]: For 2058/2058 co-relation queries the response was YES. [2025-01-10 06:40:16,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9955 conditions, 4209 events. 2899/4209 cut-off events. For 2058/2058 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 23259 event pairs, 777 based on Foata normal form. 72/4266 useless extension candidates. Maximal degree in co-relation 9945. Up to 1958 conditions per place. [2025-01-10 06:40:16,527 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2025-01-10 06:40:16,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 325 flow [2025-01-10 06:40:16,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:40:16,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:40:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2025-01-10 06:40:16,528 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2025-01-10 06:40:16,528 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 131 flow. Second operand 5 states and 119 transitions. [2025-01-10 06:40:16,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 325 flow [2025-01-10 06:40:16,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 301 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-01-10 06:40:16,531 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2025-01-10 06:40:16,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2025-01-10 06:40:16,532 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2025-01-10 06:40:16,532 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2025-01-10 06:40:16,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-01-10 06:40:16,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-01-10 06:40:16,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-01-10 06:40:16,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-01-10 06:40:16,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:40:16,540 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-10 06:40:16,543 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:40:16,544 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:40:16,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:40:16 BasicIcfg [2025-01-10 06:40:16,547 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:40:16,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:40:16,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:40:16,548 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:40:16,548 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:40:12" (3/4) ... [2025-01-10 06:40:16,549 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:40:16,551 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-01-10 06:40:16,551 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-01-10 06:40:16,551 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2025-01-10 06:40:16,554 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 93 nodes and edges [2025-01-10 06:40:16,555 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-01-10 06:40:16,555 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 06:40:16,555 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-10 06:40:16,608 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:40:16,608 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:40:16,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:40:16,609 INFO L158 Benchmark]: Toolchain (without parser) took 5627.09ms. Allocated memory was 167.8MB in the beginning and 721.4MB in the end (delta: 553.6MB). Free memory was 130.8MB in the beginning and 265.8MB in the end (delta: -135.0MB). Peak memory consumption was 418.9MB. Max. memory is 16.1GB. [2025-01-10 06:40:16,609 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 226.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:40:16,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.97ms. Allocated memory is still 167.8MB. Free memory was 130.8MB in the beginning and 103.3MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 06:40:16,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.84ms. Allocated memory is still 167.8MB. Free memory was 103.3MB in the beginning and 100.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:40:16,609 INFO L158 Benchmark]: Boogie Preprocessor took 33.54ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 94.9MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:40:16,610 INFO L158 Benchmark]: RCFGBuilder took 651.07ms. Allocated memory is still 167.8MB. Free memory was 94.9MB in the beginning and 91.8MB in the end (delta: 3.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2025-01-10 06:40:16,610 INFO L158 Benchmark]: TraceAbstraction took 4343.52ms. Allocated memory was 167.8MB in the beginning and 721.4MB in the end (delta: 553.6MB). Free memory was 90.8MB in the beginning and 270.1MB in the end (delta: -179.3MB). Peak memory consumption was 434.3MB. Max. memory is 16.1GB. [2025-01-10 06:40:16,610 INFO L158 Benchmark]: Witness Printer took 60.32ms. Allocated memory is still 721.4MB. Free memory was 270.1MB in the beginning and 265.8MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:40:16,611 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 226.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.97ms. Allocated memory is still 167.8MB. Free memory was 130.8MB in the beginning and 103.3MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.84ms. Allocated memory is still 167.8MB. Free memory was 103.3MB in the beginning and 100.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.54ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 94.9MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 651.07ms. Allocated memory is still 167.8MB. Free memory was 94.9MB in the beginning and 91.8MB in the end (delta: 3.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4343.52ms. Allocated memory was 167.8MB in the beginning and 721.4MB in the end (delta: 553.6MB). Free memory was 90.8MB in the beginning and 270.1MB in the end (delta: -179.3MB). Peak memory consumption was 434.3MB. Max. memory is 16.1GB. * Witness Printer took 60.32ms. Allocated memory is still 721.4MB. Free memory was 270.1MB in the beginning and 265.8MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: 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, 76 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 0 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 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! [2025-01-10 06:40:16,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE