./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:33:44,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:33:44,146 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:33:44,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:33:44,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:33:44,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:33:44,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:33:44,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:33:44,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:33:44,204 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:33:44,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:33:44,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:33:44,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:33:44,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:33:44,208 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:33:44,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:33:44,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:33:44,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:33:44,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:33:44,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:33:44,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:33:44,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:33:44,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:33:44,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:33:44,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:33:44,215 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:33:44,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:33:44,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:33:44,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:33:44,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:33:44,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:33:44,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:33:44,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:33:44,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:33:44,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:33:44,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:33:44,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:33:44,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:33:44,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:33:44,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:33:44,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:33:44,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:33:44,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:33:44,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:33:44,223 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-11-12 20:33:44,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:33:44,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:33:44,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:33:44,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:33:44,488 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:33:44,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-12 20:33:45,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:33:46,247 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:33:46,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-12 20:33:46,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6df00d1d/53cdf836c5cf416aa310f96fa72afb68/FLAGfa7dea9ea [2024-11-12 20:33:46,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6df00d1d/53cdf836c5cf416aa310f96fa72afb68 [2024-11-12 20:33:46,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:33:46,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:33:46,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:33:46,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:33:46,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:33:46,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b4b06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46, skipping insertion in model container [2024-11-12 20:33:46,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:33:47,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:33:47,114 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:33:47,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:33:47,258 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:33:47,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47 WrapperNode [2024-11-12 20:33:47,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:33:47,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:33:47,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:33:47,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:33:47,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,341 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 171 [2024-11-12 20:33:47,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:33:47,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:33:47,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:33:47,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:33:47,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,401 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]. [2024-11-12 20:33:47,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:33:47,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:33:47,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:33:47,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:33:47,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (1/1) ... [2024-11-12 20:33:47,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:33:47,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:33:47,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:33:47,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:33:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 20:33:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:33:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 20:33:47,543 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 20:33:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 20:33:47,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 20:33:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 20:33:47,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 20:33:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:33:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 20:33:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:33:47,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:33:47,548 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:33:47,713 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:33:47,715 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:33:48,220 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:33:48,221 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:33:48,595 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:33:48,596 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 20:33:48,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:48 BoogieIcfgContainer [2024-11-12 20:33:48,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:33:48,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:33:48,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:33:48,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:33:48,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:33:46" (1/3) ... [2024-11-12 20:33:48,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd737a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:33:48, skipping insertion in model container [2024-11-12 20:33:48,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:47" (2/3) ... [2024-11-12 20:33:48,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd737a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:33:48, skipping insertion in model container [2024-11-12 20:33:48,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:48" (3/3) ... [2024-11-12 20:33:48,609 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-11-12 20:33:48,629 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:33:48,629 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-12 20:33:48,630 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:33:48,701 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 20:33:48,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2024-11-12 20:33:48,782 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-11-12 20:33:48,783 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:33:48,785 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. [2024-11-12 20:33:48,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2024-11-12 20:33:48,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 39 transitions, 87 flow [2024-11-12 20:33:48,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:33:48,813 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;@36e56e58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:33:48,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-12 20:33:48,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:33:48,824 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-12 20:33:48,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:33:48,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:33:48,825 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:33:48,826 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-12 20:33:48,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:33:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1059153671, now seen corresponding path program 1 times [2024-11-12 20:33:48,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:33:48,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851021798] [2024-11-12 20:33:48,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:33:48,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:33:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:33:49,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:33:49,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:33:49,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851021798] [2024-11-12 20:33:49,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851021798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:33:49,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:33:49,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 20:33:49,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256959528] [2024-11-12 20:33:49,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:33:49,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:33:49,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:33:49,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:33:49,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:33:49,343 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-12 20:33:49,346 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) [2024-11-12 20:33:49,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:33:49,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-12 20:33:49,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:33:50,780 INFO L124 PetriNetUnfolderBase]: 4989/7129 cut-off events. [2024-11-12 20:33:50,780 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-12 20:33:50,797 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. [2024-11-12 20:33:50,836 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 28 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2024-11-12 20:33:50,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 139 flow [2024-11-12 20:33:50,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:33:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:33:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-12 20:33:50,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2024-11-12 20:33:50,851 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 87 flow. Second operand 3 states and 62 transitions. [2024-11-12 20:33:50,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 139 flow [2024-11-12 20:33:50,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:33:50,858 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 80 flow [2024-11-12 20:33:50,860 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} [2024-11-12 20:33:50,864 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2024-11-12 20:33:50,867 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 80 flow [2024-11-12 20:33:50,868 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) [2024-11-12 20:33:50,868 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:33:50,868 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:33:50,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:33:50,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-12 20:33:50,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:33:50,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1059153672, now seen corresponding path program 1 times [2024-11-12 20:33:50,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:33:50,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836687551] [2024-11-12 20:33:50,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:33:50,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:33:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:33:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:33:50,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:33:50,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836687551] [2024-11-12 20:33:50,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836687551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:33:50,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:33:50,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 20:33:50,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520089685] [2024-11-12 20:33:50,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:33:50,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:33:50,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:33:50,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:33:50,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:33:51,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-12 20:33:51,002 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) [2024-11-12 20:33:51,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:33:51,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-12 20:33:51,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:33:52,128 INFO L124 PetriNetUnfolderBase]: 3935/5697 cut-off events. [2024-11-12 20:33:52,129 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:33:52,137 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. [2024-11-12 20:33:52,164 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 46 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2024-11-12 20:33:52,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 57 transitions, 226 flow [2024-11-12 20:33:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:33:52,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:33:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-11-12 20:33:52,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6587301587301587 [2024-11-12 20:33:52,168 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 80 flow. Second operand 3 states and 83 transitions. [2024-11-12 20:33:52,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 57 transitions, 226 flow [2024-11-12 20:33:52,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:33:52,173 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 109 flow [2024-11-12 20:33:52,173 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} [2024-11-12 20:33:52,174 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2024-11-12 20:33:52,174 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 109 flow [2024-11-12 20:33:52,174 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) [2024-11-12 20:33:52,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:33:52,174 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:33:52,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:33:52,174 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-12 20:33:52,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:33:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash 974045189, now seen corresponding path program 1 times [2024-11-12 20:33:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:33:52,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272604517] [2024-11-12 20:33:52,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:33:52,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:33:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:33:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:33:52,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:33:52,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272604517] [2024-11-12 20:33:52,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272604517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:33:52,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:33:52,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:33:52,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575808459] [2024-11-12 20:33:52,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:33:52,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:33:52,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:33:52,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:33:52,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:33:52,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-12 20:33:52,341 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) [2024-11-12 20:33:52,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:33:52,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-12 20:33:52,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:33:53,231 INFO L124 PetriNetUnfolderBase]: 3167/4597 cut-off events. [2024-11-12 20:33:53,232 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2024-11-12 20:33:53,239 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. [2024-11-12 20:33:53,266 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 62 selfloop transitions, 7 changer transitions 3/79 dead transitions. [2024-11-12 20:33:53,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 79 transitions, 345 flow [2024-11-12 20:33:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:33:53,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:33:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-11-12 20:33:53,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2024-11-12 20:33:53,269 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 109 flow. Second operand 4 states and 115 transitions. [2024-11-12 20:33:53,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 79 transitions, 345 flow [2024-11-12 20:33:53,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 79 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:33:53,276 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 131 flow [2024-11-12 20:33:53,277 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} [2024-11-12 20:33:53,278 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-11-12 20:33:53,278 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 131 flow [2024-11-12 20:33:53,278 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) [2024-11-12 20:33:53,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:33:53,279 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] [2024-11-12 20:33:53,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:33:53,279 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-12 20:33:53,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:33:53,280 INFO L85 PathProgramCache]: Analyzing trace with hash -200171123, now seen corresponding path program 1 times [2024-11-12 20:33:53,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:33:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529659005] [2024-11-12 20:33:53,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:33:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:33:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:33:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:33:53,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:33:53,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529659005] [2024-11-12 20:33:53,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529659005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:33:53,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:33:53,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:33:53,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869623961] [2024-11-12 20:33:53,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:33:53,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:33:53,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:33:53,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:33:53,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:33:53,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-11-12 20:33:53,535 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) [2024-11-12 20:33:53,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:33:53,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-11-12 20:33:53,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:33:54,602 INFO L124 PetriNetUnfolderBase]: 2899/4209 cut-off events. [2024-11-12 20:33:54,603 INFO L125 PetriNetUnfolderBase]: For 2058/2058 co-relation queries the response was YES. [2024-11-12 20:33:54,614 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. [2024-11-12 20:33:54,619 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-11-12 20:33:54,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 325 flow [2024-11-12 20:33:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:33:54,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:33:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-12 20:33:54,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-11-12 20:33:54,622 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 131 flow. Second operand 5 states and 119 transitions. [2024-11-12 20:33:54,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 325 flow [2024-11-12 20:33:54,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 301 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-12 20:33:54,628 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2024-11-12 20:33:54,628 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} [2024-11-12 20:33:54,629 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2024-11-12 20:33:54,629 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2024-11-12 20:33:54,629 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) [2024-11-12 20:33:54,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-12 20:33:54,634 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-12 20:33:54,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-12 20:33:54,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-12 20:33:54,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-12 20:33:54,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-12 20:33:54,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-12 20:33:54,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-12 20:33:54,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-12 20:33:54,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-12 20:33:54,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-12 20:33:54,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-12 20:33:54,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-12 20:33:54,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-12 20:33:54,639 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-12 20:33:54,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:33:54,639 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-12 20:33:54,650 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 20:33:54,651 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:33:54,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:33:54 BasicIcfg [2024-11-12 20:33:54,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:33:54,661 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:33:54,662 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:33:54,662 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:33:54,663 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:48" (3/4) ... [2024-11-12 20:33:54,664 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 20:33:54,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-12 20:33:54,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-12 20:33:54,668 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-12 20:33:54,676 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 93 nodes and edges [2024-11-12 20:33:54,677 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-12 20:33:54,677 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 20:33:54,678 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 20:33:54,788 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:33:54,788 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 20:33:54,788 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:33:54,789 INFO L158 Benchmark]: Toolchain (without parser) took 8221.74ms. Allocated memory was 178.3MB in the beginning and 1.0GB in the end (delta: 828.4MB). Free memory was 119.5MB in the beginning and 625.6MB in the end (delta: -506.1MB). Peak memory consumption was 323.3MB. Max. memory is 16.1GB. [2024-11-12 20:33:54,789 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 178.3MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:33:54,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.75ms. Allocated memory is still 178.3MB. Free memory was 119.5MB in the beginning and 89.1MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-12 20:33:54,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.70ms. Allocated memory is still 178.3MB. Free memory was 88.7MB in the beginning and 85.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:33:54,790 INFO L158 Benchmark]: Boogie Preprocessor took 99.57ms. Allocated memory is still 178.3MB. Free memory was 85.3MB in the beginning and 79.3MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-12 20:33:54,791 INFO L158 Benchmark]: RCFGBuilder took 1155.34ms. Allocated memory was 178.3MB in the beginning and 247.5MB in the end (delta: 69.2MB). Free memory was 79.3MB in the beginning and 140.6MB in the end (delta: -61.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-11-12 20:33:54,793 INFO L158 Benchmark]: TraceAbstraction took 6058.13ms. Allocated memory was 247.5MB in the beginning and 1.0GB in the end (delta: 759.2MB). Free memory was 140.6MB in the beginning and 630.8MB in the end (delta: -490.2MB). Peak memory consumption was 278.4MB. Max. memory is 16.1GB. [2024-11-12 20:33:54,794 INFO L158 Benchmark]: Witness Printer took 127.18ms. Allocated memory is still 1.0GB. Free memory was 630.8MB in the beginning and 625.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 20:33:54,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 178.3MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.75ms. Allocated memory is still 178.3MB. Free memory was 119.5MB in the beginning and 89.1MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.70ms. Allocated memory is still 178.3MB. Free memory was 88.7MB in the beginning and 85.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.57ms. Allocated memory is still 178.3MB. Free memory was 85.3MB in the beginning and 79.3MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1155.34ms. Allocated memory was 178.3MB in the beginning and 247.5MB in the end (delta: 69.2MB). Free memory was 79.3MB in the beginning and 140.6MB in the end (delta: -61.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6058.13ms. Allocated memory was 247.5MB in the beginning and 1.0GB in the end (delta: 759.2MB). Free memory was 140.6MB in the beginning and 630.8MB in the end (delta: -490.2MB). Peak memory consumption was 278.4MB. Max. memory is 16.1GB. * Witness Printer took 127.18ms. Allocated memory is still 1.0GB. Free memory was 630.8MB in the beginning and 625.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 5.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s 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, 0.2s SatisfiabilityAnalysisTime, 0.6s 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 20:33:54,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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