./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/rfi002_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:35:04,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:35:04,145 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:35:04,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:35:04,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:35:04,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:35:04,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:35:04,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:35:04,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:35:04,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:35:04,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:35:04,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:35:04,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:35:04,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:35:04,187 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:35:04,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:35:04,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:35:04,189 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:35:04,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:35:04,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:35:04,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:35:04,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:35:04,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:35:04,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:35:04,194 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:35:04,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:35:04,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:35:04,195 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:35:04,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:35:04,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:35:04,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:35:04,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:35:04,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:35:04,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:35:04,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:35:04,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:35:04,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:35:04,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:35:04,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:35:04,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:35:04,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:35:04,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:35:04,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2024-11-19 01:35:04,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:35:04,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:35:04,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:35:04,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:35:04,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:35:04,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2024-11-19 01:35:05,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:35:06,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:35:06,151 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2024-11-19 01:35:06,166 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e779e963c/e9a003a654f3438b86905fa61e2cfccb/FLAG275bd3b40 [2024-11-19 01:35:06,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e779e963c/e9a003a654f3438b86905fa61e2cfccb [2024-11-19 01:35:06,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:35:06,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:35:06,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:35:06,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:35:06,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:35:06,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78fcf8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06, skipping insertion in model container [2024-11-19 01:35:06,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:35:06,746 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2024-11-19 01:35:06,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:35:07,007 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:35:07,023 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2024-11-19 01:35:07,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:35:07,180 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:35:07,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07 WrapperNode [2024-11-19 01:35:07,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:35:07,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:35:07,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:35:07,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:35:07,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,272 INFO L138 Inliner]: procedures = 174, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 206 [2024-11-19 01:35:07,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:35:07,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:35:07,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:35:07,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:35:07,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,320 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]. [2024-11-19 01:35:07,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:35:07,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:35:07,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:35:07,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:35:07,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (1/1) ... [2024-11-19 01:35:07,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:35:07,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:35:07,395 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) [2024-11-19 01:35:07,399 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 [2024-11-19 01:35:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 01:35:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:35:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 01:35:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 01:35:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 01:35:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 01:35:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:35:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 01:35:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:35:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:35:07,484 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:35:07,695 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:35:07,697 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:35:08,194 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:35:08,195 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:35:08,576 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:35:08,576 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 01:35:08,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:08 BoogieIcfgContainer [2024-11-19 01:35:08,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:35:08,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:35:08,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:35:08,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:35:08,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:35:06" (1/3) ... [2024-11-19 01:35:08,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea711ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:08, skipping insertion in model container [2024-11-19 01:35:08,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:07" (2/3) ... [2024-11-19 01:35:08,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea711ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:08, skipping insertion in model container [2024-11-19 01:35:08,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:08" (3/3) ... [2024-11-19 01:35:08,591 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2024-11-19 01:35:08,609 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:35:08,609 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-19 01:35:08,609 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:35:08,672 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 01:35:08,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 34 transitions, 76 flow [2024-11-19 01:35:08,747 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-19 01:35:08,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:35:08,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-11-19 01:35:08,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 34 transitions, 76 flow [2024-11-19 01:35:08,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 32 transitions, 70 flow [2024-11-19 01:35:08,764 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:35:08,770 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;@4d25663e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:35:08,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 01:35:08,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:35:08,776 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-19 01:35:08,776 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:35:08,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:08,777 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 01:35:08,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-19 01:35:08,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:08,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1507080655, now seen corresponding path program 1 times [2024-11-19 01:35:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:08,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571535421] [2024-11-19 01:35:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:09,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:09,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571535421] [2024-11-19 01:35:09,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571535421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:09,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:09,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 01:35:09,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826111221] [2024-11-19 01:35:09,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:09,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:35:09,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:35:09,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:35:09,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-19 01:35:09,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-19 01:35:09,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:09,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-19 01:35:09,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:09,840 INFO L124 PetriNetUnfolderBase]: 438/790 cut-off events. [2024-11-19 01:35:09,842 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 01:35:09,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1535 conditions, 790 events. 438/790 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4143 event pairs, 32 based on Foata normal form. 40/785 useless extension candidates. Maximal degree in co-relation 1525. Up to 652 conditions per place. [2024-11-19 01:35:09,853 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 29 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-11-19 01:35:09,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 148 flow [2024-11-19 01:35:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:35:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:35:09,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-19 01:35:09,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6568627450980392 [2024-11-19 01:35:09,869 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 70 flow. Second operand 3 states and 67 transitions. [2024-11-19 01:35:09,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 148 flow [2024-11-19 01:35:09,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:35:09,874 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 68 flow [2024-11-19 01:35:09,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2024-11-19 01:35:09,880 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-11-19 01:35:09,881 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 68 flow [2024-11-19 01:35:09,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-19 01:35:09,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:09,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:09,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:35:09,882 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-19 01:35:09,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:09,883 INFO L85 PathProgramCache]: Analyzing trace with hash 525140496, now seen corresponding path program 1 times [2024-11-19 01:35:09,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:09,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603827033] [2024-11-19 01:35:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:09,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:10,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:10,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603827033] [2024-11-19 01:35:10,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603827033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:10,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:10,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 01:35:10,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229819846] [2024-11-19 01:35:10,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:10,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:35:10,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:10,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:35:10,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:35:10,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-19 01:35:10,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-19 01:35:10,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:10,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-19 01:35:10,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:10,360 INFO L124 PetriNetUnfolderBase]: 380/717 cut-off events. [2024-11-19 01:35:10,360 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-19 01:35:10,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 717 events. 380/717 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3813 event pairs, 90 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 1394. Up to 466 conditions per place. [2024-11-19 01:35:10,367 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 26 selfloop transitions, 2 changer transitions 2/39 dead transitions. [2024-11-19 01:35:10,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 146 flow [2024-11-19 01:35:10,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:35:10,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:35:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-11-19 01:35:10,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6274509803921569 [2024-11-19 01:35:10,370 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 68 flow. Second operand 3 states and 64 transitions. [2024-11-19 01:35:10,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 146 flow [2024-11-19 01:35:10,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:35:10,372 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-11-19 01:35:10,372 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-19 01:35:10,373 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-19 01:35:10,373 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-11-19 01:35:10,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-19 01:35:10,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:10,374 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:10,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:35:10,374 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-19 01:35:10,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1548852309, now seen corresponding path program 1 times [2024-11-19 01:35:10,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:10,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762664805] [2024-11-19 01:35:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:10,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:10,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762664805] [2024-11-19 01:35:10,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762664805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:10,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:10,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:35:10,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241149073] [2024-11-19 01:35:10,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:10,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:35:10,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:10,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:35:10,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:35:10,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2024-11-19 01:35:10,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-19 01:35:10,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:10,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2024-11-19 01:35:10,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:11,067 INFO L124 PetriNetUnfolderBase]: 355/708 cut-off events. [2024-11-19 01:35:11,068 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-19 01:35:11,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 708 events. 355/708 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3362 event pairs, 103 based on Foata normal form. 48/728 useless extension candidates. Maximal degree in co-relation 1376. Up to 291 conditions per place. [2024-11-19 01:35:11,072 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 43 selfloop transitions, 4 changer transitions 1/54 dead transitions. [2024-11-19 01:35:11,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 218 flow [2024-11-19 01:35:11,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:35:11,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 01:35:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-11-19 01:35:11,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6029411764705882 [2024-11-19 01:35:11,076 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 4 states and 82 transitions. [2024-11-19 01:35:11,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 218 flow [2024-11-19 01:35:11,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:35:11,079 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 86 flow [2024-11-19 01:35:11,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-19 01:35:11,081 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2024-11-19 01:35:11,082 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 86 flow [2024-11-19 01:35:11,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-19 01:35:11,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:11,082 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:11,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:35:11,082 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-19 01:35:11,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:11,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1858141452, now seen corresponding path program 1 times [2024-11-19 01:35:11,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:11,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844612905] [2024-11-19 01:35:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:11,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844612905] [2024-11-19 01:35:11,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844612905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:11,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:11,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:35:11,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114950289] [2024-11-19 01:35:11,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:11,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:35:11,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:11,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:35:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:35:11,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2024-11-19 01:35:11,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-11-19 01:35:11,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:11,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2024-11-19 01:35:11,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:11,721 INFO L124 PetriNetUnfolderBase]: 177/346 cut-off events. [2024-11-19 01:35:11,721 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-19 01:35:11,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 346 events. 177/346 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1207 event pairs, 69 based on Foata normal form. 24/362 useless extension candidates. Maximal degree in co-relation 796. Up to 146 conditions per place. [2024-11-19 01:35:11,724 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 34 selfloop transitions, 6 changer transitions 1/47 dead transitions. [2024-11-19 01:35:11,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 207 flow [2024-11-19 01:35:11,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:35:11,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 01:35:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2024-11-19 01:35:11,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48823529411764705 [2024-11-19 01:35:11,729 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 86 flow. Second operand 5 states and 83 transitions. [2024-11-19 01:35:11,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 207 flow [2024-11-19 01:35:11,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 198 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-19 01:35:11,732 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 102 flow [2024-11-19 01:35:11,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2024-11-19 01:35:11,736 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2024-11-19 01:35:11,736 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 102 flow [2024-11-19 01:35:11,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-11-19 01:35:11,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:11,737 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, 1] [2024-11-19 01:35:11,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:35:11,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-19 01:35:11,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1985805631, now seen corresponding path program 1 times [2024-11-19 01:35:11,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:11,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351357078] [2024-11-19 01:35:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:11,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:14,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:14,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:14,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351357078] [2024-11-19 01:35:14,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351357078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:14,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:14,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:35:14,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278601217] [2024-11-19 01:35:14,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:14,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:35:14,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:14,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:35:14,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:35:14,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 34 [2024-11-19 01:35:14,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 102 flow. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 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) [2024-11-19 01:35:14,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:14,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 34 [2024-11-19 01:35:14,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:15,537 INFO L124 PetriNetUnfolderBase]: 263/557 cut-off events. [2024-11-19 01:35:15,537 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2024-11-19 01:35:15,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 557 events. 263/557 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2514 event pairs, 40 based on Foata normal form. 4/551 useless extension candidates. Maximal degree in co-relation 1249. Up to 166 conditions per place. [2024-11-19 01:35:15,540 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 28 selfloop transitions, 5 changer transitions 31/73 dead transitions. [2024-11-19 01:35:15,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 73 transitions, 330 flow [2024-11-19 01:35:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:35:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:35:15,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2024-11-19 01:35:15,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.477124183006536 [2024-11-19 01:35:15,542 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 102 flow. Second operand 9 states and 146 transitions. [2024-11-19 01:35:15,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 73 transitions, 330 flow [2024-11-19 01:35:15,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 73 transitions, 290 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-19 01:35:15,547 INFO L231 Difference]: Finished difference. Result has 50 places, 33 transitions, 112 flow [2024-11-19 01:35:15,548 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=112, PETRI_PLACES=50, PETRI_TRANSITIONS=33} [2024-11-19 01:35:15,549 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2024-11-19 01:35:15,550 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 33 transitions, 112 flow [2024-11-19 01:35:15,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 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) [2024-11-19 01:35:15,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:15,550 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, 1] [2024-11-19 01:35:15,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:35:15,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-19 01:35:15,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:15,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1415734003, now seen corresponding path program 2 times [2024-11-19 01:35:15,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:15,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357468235] [2024-11-19 01:35:15,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:35:15,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:15,824 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:35:15,824 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:16,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:16,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357468235] [2024-11-19 01:35:16,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357468235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:16,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:16,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:35:16,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156873814] [2024-11-19 01:35:16,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:16,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:35:16,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:16,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:35:16,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:35:16,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 01:35:16,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 33 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-19 01:35:16,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:16,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 01:35:16,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:16,709 INFO L124 PetriNetUnfolderBase]: 194/437 cut-off events. [2024-11-19 01:35:16,709 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-19 01:35:16,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 437 events. 194/437 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1946 event pairs, 111 based on Foata normal form. 4/430 useless extension candidates. Maximal degree in co-relation 983. Up to 183 conditions per place. [2024-11-19 01:35:16,713 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 21 selfloop transitions, 2 changer transitions 20/53 dead transitions. [2024-11-19 01:35:16,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 251 flow [2024-11-19 01:35:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:35:16,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 01:35:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 101 transitions. [2024-11-19 01:35:16,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4950980392156863 [2024-11-19 01:35:16,715 INFO L175 Difference]: Start difference. First operand has 50 places, 33 transitions, 112 flow. Second operand 6 states and 101 transitions. [2024-11-19 01:35:16,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 251 flow [2024-11-19 01:35:16,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 228 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-19 01:35:16,717 INFO L231 Difference]: Finished difference. Result has 47 places, 30 transitions, 98 flow [2024-11-19 01:35:16,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=47, PETRI_TRANSITIONS=30} [2024-11-19 01:35:16,719 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2024-11-19 01:35:16,719 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 30 transitions, 98 flow [2024-11-19 01:35:16,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-19 01:35:16,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:16,720 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, 1] [2024-11-19 01:35:16,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:35:16,720 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-19 01:35:16,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:16,721 INFO L85 PathProgramCache]: Analyzing trace with hash -299630815, now seen corresponding path program 3 times [2024-11-19 01:35:16,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:16,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937632440] [2024-11-19 01:35:16,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:35:16,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:16,959 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:35:16,960 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:20,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:20,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937632440] [2024-11-19 01:35:20,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937632440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:20,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:20,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:35:20,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366774355] [2024-11-19 01:35:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:20,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:35:20,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:20,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:35:20,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:35:20,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 34 [2024-11-19 01:35:20,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 30 transitions, 98 flow. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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) [2024-11-19 01:35:20,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:20,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 34 [2024-11-19 01:35:20,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:20,773 INFO L124 PetriNetUnfolderBase]: 90/202 cut-off events. [2024-11-19 01:35:20,773 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-19 01:35:20,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 202 events. 90/202 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 589 event pairs, 11 based on Foata normal form. 4/202 useless extension candidates. Maximal degree in co-relation 464. Up to 73 conditions per place. [2024-11-19 01:35:20,774 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2024-11-19 01:35:20,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 186 flow [2024-11-19 01:35:20,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:35:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:35:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 106 transitions. [2024-11-19 01:35:20,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3897058823529412 [2024-11-19 01:35:20,776 INFO L175 Difference]: Start difference. First operand has 47 places, 30 transitions, 98 flow. Second operand 8 states and 106 transitions. [2024-11-19 01:35:20,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 186 flow [2024-11-19 01:35:20,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 176 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-19 01:35:20,777 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-19 01:35:20,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-19 01:35:20,778 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2024-11-19 01:35:20,778 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-19 01:35:20,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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) [2024-11-19 01:35:20,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-11-19 01:35:20,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-19 01:35:20,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-19 01:35:20,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-19 01:35:20,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-19 01:35:20,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-19 01:35:20,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-19 01:35:20,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:35:20,783 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-19 01:35:20,788 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 01:35:20,789 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 01:35:20,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:35:20 BasicIcfg [2024-11-19 01:35:20,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 01:35:20,794 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 01:35:20,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 01:35:20,798 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 01:35:20,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:08" (3/4) ... [2024-11-19 01:35:20,799 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 01:35:20,802 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 01:35:20,802 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 01:35:20,808 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 93 nodes and edges [2024-11-19 01:35:20,809 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-19 01:35:20,809 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 01:35:20,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 01:35:20,910 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 01:35:20,910 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 01:35:20,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 01:35:20,911 INFO L158 Benchmark]: Toolchain (without parser) took 14439.92ms. Allocated memory was 176.2MB in the beginning and 633.3MB in the end (delta: 457.2MB). Free memory was 123.7MB in the beginning and 367.4MB in the end (delta: -243.7MB). Peak memory consumption was 213.4MB. Max. memory is 16.1GB. [2024-11-19 01:35:20,911 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 96.5MB. Free memory was 58.1MB in the beginning and 58.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:35:20,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 705.87ms. Allocated memory is still 176.2MB. Free memory was 123.0MB in the beginning and 140.1MB in the end (delta: -17.1MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2024-11-19 01:35:20,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.18ms. Allocated memory is still 176.2MB. Free memory was 140.1MB in the beginning and 137.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:35:20,912 INFO L158 Benchmark]: Boogie Preprocessor took 81.80ms. Allocated memory is still 176.2MB. Free memory was 137.0MB in the beginning and 130.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 01:35:20,912 INFO L158 Benchmark]: RCFGBuilder took 1218.53ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 130.7MB in the beginning and 183.6MB in the end (delta: -52.9MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. [2024-11-19 01:35:20,913 INFO L158 Benchmark]: TraceAbstraction took 12214.18ms. Allocated memory was 230.7MB in the beginning and 633.3MB in the end (delta: 402.7MB). Free memory was 182.5MB in the beginning and 372.6MB in the end (delta: -190.1MB). Peak memory consumption was 213.6MB. Max. memory is 16.1GB. [2024-11-19 01:35:20,913 INFO L158 Benchmark]: Witness Printer took 116.74ms. Allocated memory is still 633.3MB. Free memory was 372.6MB in the beginning and 367.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 01:35:20,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 96.5MB. Free memory was 58.1MB in the beginning and 58.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 705.87ms. Allocated memory is still 176.2MB. Free memory was 123.0MB in the beginning and 140.1MB in the end (delta: -17.1MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.18ms. Allocated memory is still 176.2MB. Free memory was 140.1MB in the beginning and 137.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.80ms. Allocated memory is still 176.2MB. Free memory was 137.0MB in the beginning and 130.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1218.53ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 130.7MB in the beginning and 183.6MB in the end (delta: -52.9MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12214.18ms. Allocated memory was 230.7MB in the beginning and 633.3MB in the end (delta: 402.7MB). Free memory was 182.5MB in the beginning and 372.6MB in the end (delta: -190.1MB). Peak memory consumption was 213.6MB. Max. memory is 16.1GB. * Witness Printer took 116.74ms. Allocated memory is still 633.3MB. Free memory was 372.6MB in the beginning and 367.4MB 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 55 locations, 7 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: 12.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 244 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 778 IncrementalHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 11 mSDtfsCounter, 778 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=5, InterpolantAutomatonStates: 38, 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, 1.1s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 01:35:20,948 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