./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.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 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:31:59,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:31:59,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:31:59,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:31:59,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:31:59,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:31:59,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:31:59,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:31:59,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:31:59,744 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:31:59,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:31:59,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:31:59,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:31:59,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:31:59,746 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:31:59,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:31:59,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:31:59,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:31:59,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:31:59,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:31:59,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:31:59,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:31:59,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:31:59,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:31:59,749 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:31:59,749 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:31:59,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:31:59,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:31:59,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:31:59,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:31:59,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:31:59,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:31:59,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:31:59,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:31:59,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:31:59,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:31:59,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:31:59,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:31:59,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:31:59,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:31:59,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:31:59,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:31:59,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:31:59,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:31:59,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2024-10-13 16:32:00,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:32:00,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:32:00,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:32:00,044 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:32:00,044 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:32:00,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-10-13 16:32:01,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:32:01,791 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:32:01,792 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-10-13 16:32:01,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45529390f/9ac5b0c325294871a61dc5255fe2a28e/FLAG61779d118 [2024-10-13 16:32:01,831 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45529390f/9ac5b0c325294871a61dc5255fe2a28e [2024-10-13 16:32:01,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:32:01,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:32:01,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:32:01,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:32:01,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:32:01,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:32:01" (1/1) ... [2024-10-13 16:32:01,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243435fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:01, skipping insertion in model container [2024-10-13 16:32:01,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:32:01" (1/1) ... [2024-10-13 16:32:01,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:32:02,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:32:02,254 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:32:02,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:32:02,355 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:32:02,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02 WrapperNode [2024-10-13 16:32:02,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:32:02,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:32:02,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:32:02,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:32:02,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,406 INFO L138 Inliner]: procedures = 173, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-10-13 16:32:02,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:32:02,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:32:02,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:32:02,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:32:02,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,448 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]. [2024-10-13 16:32:02,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:32:02,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:32:02,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:32:02,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:32:02,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (1/1) ... [2024-10-13 16:32:02,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:32:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:32:02,517 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) [2024-10-13 16:32:02,520 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 [2024-10-13 16:32:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 16:32:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-10-13 16:32:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-10-13 16:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 16:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:32:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:32:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-13 16:32:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-13 16:32:02,575 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:32:02,755 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:32:02,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:32:02,920 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:32:02,920 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:32:03,041 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:32:03,042 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 16:32:03,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:32:03 BoogieIcfgContainer [2024-10-13 16:32:03,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:32:03,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:32:03,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:32:03,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:32:03,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:32:01" (1/3) ... [2024-10-13 16:32:03,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f1c036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:32:03, skipping insertion in model container [2024-10-13 16:32:03,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:32:02" (2/3) ... [2024-10-13 16:32:03,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f1c036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:32:03, skipping insertion in model container [2024-10-13 16:32:03,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:32:03" (3/3) ... [2024-10-13 16:32:03,053 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2024-10-13 16:32:03,070 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:32:03,071 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 16:32:03,072 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:32:03,142 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 16:32:03,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 54 transitions, 136 flow [2024-10-13 16:32:03,220 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2024-10-13 16:32:03,220 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 16:32:03,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 0/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 122 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-13 16:32:03,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 54 transitions, 136 flow [2024-10-13 16:32:03,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 48 transitions, 117 flow [2024-10-13 16:32:03,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:32:03,250 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;@1f645cda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:32:03,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-10-13 16:32:03,258 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:32:03,259 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-10-13 16:32:03,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:32:03,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:32:03,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 16:32:03,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-13 16:32:03,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:32:03,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1123835297, now seen corresponding path program 1 times [2024-10-13 16:32:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:32:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246992309] [2024-10-13 16:32:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:32:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:32:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:32:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:32:03,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:32:03,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246992309] [2024-10-13 16:32:03,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246992309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:32:03,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:32:03,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:32:03,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556727109] [2024-10-13 16:32:03,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:32:03,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:32:03,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:32:03,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:32:03,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:32:03,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-13 16:32:03,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-10-13 16:32:03,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:32:03,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-13 16:32:03,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:32:05,164 INFO L124 PetriNetUnfolderBase]: 8229/13651 cut-off events. [2024-10-13 16:32:05,165 INFO L125 PetriNetUnfolderBase]: For 1587/1587 co-relation queries the response was YES. [2024-10-13 16:32:05,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26645 conditions, 13651 events. 8229/13651 cut-off events. For 1587/1587 co-relation queries the response was YES. Maximal size of possible extension queue 866. Compared 106113 event pairs, 3453 based on Foata normal form. 0/11857 useless extension candidates. Maximal degree in co-relation 22435. Up to 6387 conditions per place. [2024-10-13 16:32:05,274 INFO L140 encePairwiseOnDemand]: 39/54 looper letters, 49 selfloop transitions, 7 changer transitions 0/70 dead transitions. [2024-10-13 16:32:05,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 70 transitions, 288 flow [2024-10-13 16:32:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:32:05,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:32:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-13 16:32:05,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7283950617283951 [2024-10-13 16:32:05,288 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 117 flow. Second operand 3 states and 118 transitions. [2024-10-13 16:32:05,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 70 transitions, 288 flow [2024-10-13 16:32:05,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 70 transitions, 266 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 16:32:05,326 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 172 flow [2024-10-13 16:32:05,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-10-13 16:32:05,330 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-10-13 16:32:05,331 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 172 flow [2024-10-13 16:32:05,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-10-13 16:32:05,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:32:05,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:32:05,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:32:05,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-13 16:32:05,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:32:05,333 INFO L85 PathProgramCache]: Analyzing trace with hash -970299339, now seen corresponding path program 1 times [2024-10-13 16:32:05,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:32:05,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047471487] [2024-10-13 16:32:05,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:32:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:32:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:32:05,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:32:05,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:32:05,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047471487] [2024-10-13 16:32:05,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047471487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:32:05,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:32:05,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:32:05,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277656380] [2024-10-13 16:32:05,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:32:05,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:32:05,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:32:05,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:32:05,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:32:05,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-13 16:32:05,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-10-13 16:32:05,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:32:05,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-13 16:32:05,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:32:06,411 INFO L124 PetriNetUnfolderBase]: 5309/9528 cut-off events. [2024-10-13 16:32:06,412 INFO L125 PetriNetUnfolderBase]: For 2949/2955 co-relation queries the response was YES. [2024-10-13 16:32:06,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21224 conditions, 9528 events. 5309/9528 cut-off events. For 2949/2955 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 76295 event pairs, 1373 based on Foata normal form. 579/9088 useless extension candidates. Maximal degree in co-relation 4518. Up to 2815 conditions per place. [2024-10-13 16:32:06,481 INFO L140 encePairwiseOnDemand]: 39/54 looper letters, 63 selfloop transitions, 11 changer transitions 6/94 dead transitions. [2024-10-13 16:32:06,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 94 transitions, 440 flow [2024-10-13 16:32:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:32:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:32:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-10-13 16:32:06,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2024-10-13 16:32:06,484 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 172 flow. Second operand 4 states and 158 transitions. [2024-10-13 16:32:06,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 94 transitions, 440 flow [2024-10-13 16:32:06,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 94 transitions, 426 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:32:06,497 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 221 flow [2024-10-13 16:32:06,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=221, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2024-10-13 16:32:06,498 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 0 predicate places. [2024-10-13 16:32:06,499 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 221 flow [2024-10-13 16:32:06,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-10-13 16:32:06,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:32:06,499 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:32:06,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:32:06,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-13 16:32:06,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:32:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash -970299338, now seen corresponding path program 1 times [2024-10-13 16:32:06,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:32:06,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775526893] [2024-10-13 16:32:06,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:32:06,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:32:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:32:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:32:06,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:32:06,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775526893] [2024-10-13 16:32:06,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775526893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:32:06,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:32:06,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:32:06,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095047752] [2024-10-13 16:32:06,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:32:06,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:32:06,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:32:06,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:32:06,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:32:06,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-13 16:32:06,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-10-13 16:32:06,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:32:06,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-13 16:32:06,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:32:07,424 INFO L124 PetriNetUnfolderBase]: 4113/7704 cut-off events. [2024-10-13 16:32:07,425 INFO L125 PetriNetUnfolderBase]: For 4474/4477 co-relation queries the response was YES. [2024-10-13 16:32:07,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18203 conditions, 7704 events. 4113/7704 cut-off events. For 4474/4477 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 62513 event pairs, 1274 based on Foata normal form. 363/7917 useless extension candidates. Maximal degree in co-relation 3791. Up to 2420 conditions per place. [2024-10-13 16:32:07,476 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 55 selfloop transitions, 11 changer transitions 2/82 dead transitions. [2024-10-13 16:32:07,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 82 transitions, 420 flow [2024-10-13 16:32:07,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:32:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:32:07,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2024-10-13 16:32:07,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-10-13 16:32:07,478 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 221 flow. Second operand 4 states and 142 transitions. [2024-10-13 16:32:07,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 82 transitions, 420 flow [2024-10-13 16:32:07,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 82 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:32:07,486 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 234 flow [2024-10-13 16:32:07,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2024-10-13 16:32:07,487 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-10-13 16:32:07,488 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 234 flow [2024-10-13 16:32:07,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-10-13 16:32:07,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:32:07,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:32:07,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:32:07,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-13 16:32:07,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:32:07,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1998120379, now seen corresponding path program 1 times [2024-10-13 16:32:07,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:32:07,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2648456] [2024-10-13 16:32:07,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:32:07,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:32:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:32:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:32:07,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:32:07,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2648456] [2024-10-13 16:32:07,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2648456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:32:07,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:32:07,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:32:07,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290998020] [2024-10-13 16:32:07,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:32:07,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:32:07,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:32:07,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:32:07,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:32:07,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-13 16:32:07,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-10-13 16:32:07,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:32:07,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-13 16:32:07,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:32:08,411 INFO L124 PetriNetUnfolderBase]: 3528/6362 cut-off events. [2024-10-13 16:32:08,411 INFO L125 PetriNetUnfolderBase]: For 6000/6003 co-relation queries the response was YES. [2024-10-13 16:32:08,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15977 conditions, 6362 events. 3528/6362 cut-off events. For 6000/6003 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 48284 event pairs, 3206 based on Foata normal form. 172/6280 useless extension candidates. Maximal degree in co-relation 3553. Up to 5353 conditions per place. [2024-10-13 16:32:08,446 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 33 selfloop transitions, 1 changer transitions 2/50 dead transitions. [2024-10-13 16:32:08,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 274 flow [2024-10-13 16:32:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:32:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:32:08,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-10-13 16:32:08,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2024-10-13 16:32:08,448 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 234 flow. Second operand 3 states and 86 transitions. [2024-10-13 16:32:08,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 274 flow [2024-10-13 16:32:08,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 252 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:32:08,457 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 170 flow [2024-10-13 16:32:08,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-13 16:32:08,458 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2024-10-13 16:32:08,458 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 170 flow [2024-10-13 16:32:08,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-10-13 16:32:08,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:32:08,458 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:32:08,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:32:08,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-13 16:32:08,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:32:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash 833686986, now seen corresponding path program 1 times [2024-10-13 16:32:08,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:32:08,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727822242] [2024-10-13 16:32:08,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:32:08,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:32:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:32:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:32:08,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:32:08,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727822242] [2024-10-13 16:32:08,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727822242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:32:08,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:32:08,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:32:08,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131899620] [2024-10-13 16:32:08,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:32:08,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:32:08,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:32:08,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:32:08,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:32:08,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-13 16:32:08,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-10-13 16:32:08,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:32:08,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-13 16:32:08,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:32:08,902 INFO L124 PetriNetUnfolderBase]: 2854/5144 cut-off events. [2024-10-13 16:32:08,902 INFO L125 PetriNetUnfolderBase]: For 2758/2761 co-relation queries the response was YES. [2024-10-13 16:32:08,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12092 conditions, 5144 events. 2854/5144 cut-off events. For 2758/2761 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 36984 event pairs, 2643 based on Foata normal form. 88/4998 useless extension candidates. Maximal degree in co-relation 12081. Up to 4351 conditions per place. [2024-10-13 16:32:08,930 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 31 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2024-10-13 16:32:08,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 46 transitions, 222 flow [2024-10-13 16:32:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:32:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:32:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-10-13 16:32:08,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-10-13 16:32:08,932 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 170 flow. Second operand 3 states and 84 transitions. [2024-10-13 16:32:08,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 46 transitions, 222 flow [2024-10-13 16:32:08,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 46 transitions, 221 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:32:08,935 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 159 flow [2024-10-13 16:32:08,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-13 16:32:08,936 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-10-13 16:32:08,936 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 159 flow [2024-10-13 16:32:08,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-10-13 16:32:08,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:32:08,936 INFO L204 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] [2024-10-13 16:32:08,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 16:32:08,937 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-13 16:32:08,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:32:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2009444811, now seen corresponding path program 1 times [2024-10-13 16:32:08,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:32:08,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647314614] [2024-10-13 16:32:08,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:32:08,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:32:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:32:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:32:09,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:32:09,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647314614] [2024-10-13 16:32:09,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647314614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:32:09,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:32:09,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:32:09,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439339890] [2024-10-13 16:32:09,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:32:09,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:32:09,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:32:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:32:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:32:09,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-13 16:32:09,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-13 16:32:09,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:32:09,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-13 16:32:09,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:32:09,672 INFO L124 PetriNetUnfolderBase]: 3060/6204 cut-off events. [2024-10-13 16:32:09,672 INFO L125 PetriNetUnfolderBase]: For 2712/2715 co-relation queries the response was YES. [2024-10-13 16:32:09,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13535 conditions, 6204 events. 3060/6204 cut-off events. For 2712/2715 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 51375 event pairs, 932 based on Foata normal form. 91/6221 useless extension candidates. Maximal degree in co-relation 13523. Up to 1562 conditions per place. [2024-10-13 16:32:09,712 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 51 selfloop transitions, 7 changer transitions 14/86 dead transitions. [2024-10-13 16:32:09,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 86 transitions, 414 flow [2024-10-13 16:32:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:32:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:32:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-10-13 16:32:09,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6074074074074074 [2024-10-13 16:32:09,715 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 159 flow. Second operand 5 states and 164 transitions. [2024-10-13 16:32:09,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 86 transitions, 414 flow [2024-10-13 16:32:09,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:32:09,719 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 184 flow [2024-10-13 16:32:09,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=184, PETRI_PLACES=62, PETRI_TRANSITIONS=46} [2024-10-13 16:32:09,721 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-10-13 16:32:09,722 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 184 flow [2024-10-13 16:32:09,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-13 16:32:09,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:32:09,723 INFO L204 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] [2024-10-13 16:32:09,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:32:09,723 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-13 16:32:09,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:32:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1432440053, now seen corresponding path program 2 times [2024-10-13 16:32:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:32:09,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045496027] [2024-10-13 16:32:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:32:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:32:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:32:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:32:09,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:32:09,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045496027] [2024-10-13 16:32:09,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045496027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:32:09,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:32:09,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:32:09,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254812997] [2024-10-13 16:32:09,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:32:09,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:32:09,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:32:09,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:32:09,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:32:09,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-13 16:32:09,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-13 16:32:09,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:32:09,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-13 16:32:09,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:32:10,282 INFO L124 PetriNetUnfolderBase]: 2290/4788 cut-off events. [2024-10-13 16:32:10,283 INFO L125 PetriNetUnfolderBase]: For 4179/4182 co-relation queries the response was YES. [2024-10-13 16:32:10,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10973 conditions, 4788 events. 2290/4788 cut-off events. For 4179/4182 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 38194 event pairs, 655 based on Foata normal form. 91/4837 useless extension candidates. Maximal degree in co-relation 10959. Up to 1484 conditions per place. [2024-10-13 16:32:10,303 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2024-10-13 16:32:10,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 72 transitions, 348 flow [2024-10-13 16:32:10,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:32:10,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:32:10,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 150 transitions. [2024-10-13 16:32:10,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-13 16:32:10,305 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 184 flow. Second operand 5 states and 150 transitions. [2024-10-13 16:32:10,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 72 transitions, 348 flow [2024-10-13 16:32:10,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 323 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-13 16:32:10,312 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-10-13 16:32:10,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-10-13 16:32:10,313 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-10-13 16:32:10,313 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-10-13 16:32:10,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-13 16:32:10,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-10-13 16:32:10,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-10-13 16:32:10,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-10-13 16:32:10,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-10-13 16:32:10,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining) [2024-10-13 16:32:10,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining) [2024-10-13 16:32:10,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-10-13 16:32:10,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2024-10-13 16:32:10,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-10-13 16:32:10,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-10-13 16:32:10,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-10-13 16:32:10,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-10-13 16:32:10,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-10-13 16:32:10,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-10-13 16:32:10,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-10-13 16:32:10,321 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-10-13 16:32:10,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:32:10,321 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-10-13 16:32:10,331 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 16:32:10,332 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 16:32:10,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:32:10 BasicIcfg [2024-10-13 16:32:10,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 16:32:10,345 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:32:10,345 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:32:10,345 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:32:10,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:32:03" (3/4) ... [2024-10-13 16:32:10,347 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 16:32:10,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2024-10-13 16:32:10,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2024-10-13 16:32:10,357 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2024-10-13 16:32:10,357 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-13 16:32:10,358 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 16:32:10,358 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 16:32:10,450 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:32:10,451 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 16:32:10,451 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:32:10,452 INFO L158 Benchmark]: Toolchain (without parser) took 8610.73ms. Allocated memory was 161.5MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 85.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 284.6MB. Max. memory is 16.1GB. [2024-10-13 16:32:10,452 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 161.5MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:32:10,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.32ms. Allocated memory is still 161.5MB. Free memory was 85.1MB in the beginning and 124.8MB in the end (delta: -39.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-10-13 16:32:10,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.00ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:32:10,453 INFO L158 Benchmark]: Boogie Preprocessor took 63.63ms. Allocated memory is still 161.5MB. Free memory was 122.7MB in the beginning and 120.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:32:10,453 INFO L158 Benchmark]: RCFGBuilder took 570.90ms. Allocated memory is still 161.5MB. Free memory was 120.6MB in the beginning and 114.2MB in the end (delta: 6.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-10-13 16:32:10,453 INFO L158 Benchmark]: TraceAbstraction took 7299.65ms. Allocated memory was 161.5MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 113.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 429.3MB. Max. memory is 16.1GB. [2024-10-13 16:32:10,454 INFO L158 Benchmark]: Witness Printer took 106.28ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 16:32:10,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 161.5MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.32ms. Allocated memory is still 161.5MB. Free memory was 85.1MB in the beginning and 124.8MB in the end (delta: -39.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.00ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.63ms. Allocated memory is still 161.5MB. Free memory was 122.7MB in the beginning and 120.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.90ms. Allocated memory is still 161.5MB. Free memory was 120.6MB in the beginning and 114.2MB in the end (delta: 6.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7299.65ms. Allocated memory was 161.5MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 113.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 429.3MB. Max. memory is 16.1GB. * Witness Printer took 106.28ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: 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, 79 locations, 16 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: 7.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 606 IncrementalHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 0 mSDtfsCounter, 606 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 16:32:10,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE