./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-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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-wmm/rfi002_tso.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 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 23:49:05,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 23:49:05,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 23:49:05,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 23:49:05,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 23:49:05,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 23:49:05,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 23:49:05,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 23:49:05,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 23:49:05,177 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 23:49:05,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 23:49:05,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 23:49:05,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 23:49:05,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 23:49:05,181 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 23:49:05,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 23:49:05,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 23:49:05,182 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 23:49:05,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 23:49:05,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 23:49:05,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 23:49:05,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 23:49:05,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 23:49:05,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 23:49:05,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 23:49:05,191 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 23:49:05,191 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 23:49:05,192 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 23:49:05,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 23:49:05,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 23:49:05,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 23:49:05,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 23:49:05,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 23:49:05,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 23:49:05,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:49:05,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 23:49:05,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 23:49:05,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 23:49:05,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 23:49:05,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 23:49:05,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 23:49:05,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 23:49:05,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 23:49:05,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 23:49:05,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2024-10-14 23:49:05,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 23:49:05,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 23:49:05,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 23:49:05,483 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 23:49:05,483 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 23:49:05,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2024-10-14 23:49:06,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 23:49:07,266 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 23:49:07,266 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2024-10-14 23:49:07,284 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e89de599/ff948c96a8124221baf06d7df601ed30/FLAGfeaf748a7 [2024-10-14 23:49:07,297 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e89de599/ff948c96a8124221baf06d7df601ed30 [2024-10-14 23:49:07,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 23:49:07,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 23:49:07,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 23:49:07,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 23:49:07,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 23:49:07,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:07,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7793ea7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07, skipping insertion in model container [2024-10-14 23:49:07,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:07,356 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 23:49:07,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:49:07,856 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 23:49:07,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:49:07,964 INFO L204 MainTranslator]: Completed translation [2024-10-14 23:49:07,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07 WrapperNode [2024-10-14 23:49:07,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 23:49:07,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 23:49:07,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 23:49:07,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 23:49:07,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,054 INFO L138 Inliner]: procedures = 174, calls = 41, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 214 [2024-10-14 23:49:08,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 23:49:08,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 23:49:08,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 23:49:08,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 23:49:08,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,116 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]. [2024-10-14 23:49:08,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 23:49:08,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 23:49:08,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 23:49:08,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 23:49:08,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (1/1) ... [2024-10-14 23:49:08,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:49:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:49:08,195 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) [2024-10-14 23:49:08,200 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 [2024-10-14 23:49:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 23:49:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 23:49:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 23:49:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 23:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 23:49:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 23:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 23:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 23:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 23:49:08,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 23:49:08,254 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 23:49:08,422 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 23:49:08,424 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 23:49:09,003 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 23:49:09,004 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 23:49:09,372 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 23:49:09,373 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 23:49:09,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:49:09 BoogieIcfgContainer [2024-10-14 23:49:09,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 23:49:09,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 23:49:09,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 23:49:09,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 23:49:09,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:49:07" (1/3) ... [2024-10-14 23:49:09,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3077d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:49:09, skipping insertion in model container [2024-10-14 23:49:09,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:07" (2/3) ... [2024-10-14 23:49:09,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3077d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:49:09, skipping insertion in model container [2024-10-14 23:49:09,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:49:09" (3/3) ... [2024-10-14 23:49:09,385 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2024-10-14 23:49:09,405 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 23:49:09,406 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 23:49:09,406 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 23:49:09,500 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 23:49:09,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 70 flow [2024-10-14 23:49:09,579 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-10-14 23:49:09,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:49:09,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-14 23:49:09,582 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 31 transitions, 70 flow [2024-10-14 23:49:09,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 64 flow [2024-10-14 23:49:09,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 23:49:09,609 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;@348db150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 23:49:09,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-14 23:49:09,618 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 23:49:09,619 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-14 23:49:09,619 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:49:09,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:49:09,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:49:09,621 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:49:09,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:49:09,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1668946722, now seen corresponding path program 1 times [2024-10-14 23:49:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:49:09,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80963322] [2024-10-14 23:49:09,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:49:09,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:49:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:49:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:49:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:49:10,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80963322] [2024-10-14 23:49:10,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80963322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:49:10,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:49:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 23:49:10,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141449322] [2024-10-14 23:49:10,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:49:10,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 23:49:10,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:49:10,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 23:49:10,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 23:49:10,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2024-10-14 23:49:10,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:49:10,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:49:10,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2024-10-14 23:49:10,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:49:10,562 INFO L124 PetriNetUnfolderBase]: 519/876 cut-off events. [2024-10-14 23:49:10,563 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-14 23:49:10,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 876 events. 519/876 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4030 event pairs, 247 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 1752. Up to 505 conditions per place. [2024-10-14 23:49:10,576 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 37 selfloop transitions, 3 changer transitions 2/46 dead transitions. [2024-10-14 23:49:10,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 185 flow [2024-10-14 23:49:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 23:49:10,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 23:49:10,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-10-14 23:49:10,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6881720430107527 [2024-10-14 23:49:10,592 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 64 flow. Second operand 3 states and 64 transitions. [2024-10-14 23:49:10,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 185 flow [2024-10-14 23:49:10,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:49:10,599 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 79 flow [2024-10-14 23:49:10,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-10-14 23:49:10,606 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-10-14 23:49:10,607 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 79 flow [2024-10-14 23:49:10,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:49:10,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:49:10,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:49:10,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 23:49:10,608 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:49:10,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:49:10,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1626550425, now seen corresponding path program 1 times [2024-10-14 23:49:10,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:49:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247798564] [2024-10-14 23:49:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:49:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:49:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:49:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:49:10,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:49:10,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247798564] [2024-10-14 23:49:10,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247798564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:49:10,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:49:10,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:49:10,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083860897] [2024-10-14 23:49:10,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:49:10,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:49:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:49:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:49:10,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:49:10,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2024-10-14 23:49:10,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2024-10-14 23:49:10,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:49:10,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2024-10-14 23:49:10,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:49:11,285 INFO L124 PetriNetUnfolderBase]: 443/752 cut-off events. [2024-10-14 23:49:11,287 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-10-14 23:49:11,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1663 conditions, 752 events. 443/752 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3402 event pairs, 223 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 1652. Up to 380 conditions per place. [2024-10-14 23:49:11,297 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 35 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2024-10-14 23:49:11,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 179 flow [2024-10-14 23:49:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:49:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:49:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2024-10-14 23:49:11,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2024-10-14 23:49:11,299 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 79 flow. Second operand 4 states and 64 transitions. [2024-10-14 23:49:11,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 179 flow [2024-10-14 23:49:11,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:49:11,301 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 74 flow [2024-10-14 23:49:11,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2024-10-14 23:49:11,304 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-10-14 23:49:11,304 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 74 flow [2024-10-14 23:49:11,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2024-10-14 23:49:11,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:49:11,305 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:49:11,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 23:49:11,306 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:49:11,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:49:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1626550424, now seen corresponding path program 1 times [2024-10-14 23:49:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:49:11,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801966875] [2024-10-14 23:49:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:49:11,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:49:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:49:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:49:11,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:49:11,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801966875] [2024-10-14 23:49:11,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801966875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:49:11,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:49:11,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:49:11,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85177787] [2024-10-14 23:49:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:49:11,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:49:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:49:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:49:11,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:49:11,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2024-10-14 23:49:11,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2024-10-14 23:49:11,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:49:11,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2024-10-14 23:49:11,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:49:11,836 INFO L124 PetriNetUnfolderBase]: 411/696 cut-off events. [2024-10-14 23:49:11,836 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-10-14 23:49:11,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 696 events. 411/696 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3149 event pairs, 211 based on Foata normal form. 24/718 useless extension candidates. Maximal degree in co-relation 1516. Up to 364 conditions per place. [2024-10-14 23:49:11,840 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-10-14 23:49:11,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 170 flow [2024-10-14 23:49:11,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:49:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:49:11,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2024-10-14 23:49:11,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-10-14 23:49:11,843 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 74 flow. Second operand 4 states and 62 transitions. [2024-10-14 23:49:11,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 170 flow [2024-10-14 23:49:11,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 163 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:49:11,847 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-10-14 23:49:11,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-10-14 23:49:11,848 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-10-14 23:49:11,849 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-10-14 23:49:11,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2024-10-14 23:49:11,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-10-14 23:49:11,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-14 23:49:11,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-14 23:49:11,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-14 23:49:11,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-10-14 23:49:11,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-10-14 23:49:11,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-14 23:49:11,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-14 23:49:11,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-14 23:49:11,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-10-14 23:49:11,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 23:49:11,854 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 23:49:11,863 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 23:49:11,864 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 23:49:11,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:49:11 BasicIcfg [2024-10-14 23:49:11,871 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 23:49:11,871 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 23:49:11,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 23:49:11,872 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 23:49:11,873 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:49:09" (3/4) ... [2024-10-14 23:49:11,875 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 23:49:11,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-14 23:49:11,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-14 23:49:11,885 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 99 nodes and edges [2024-10-14 23:49:11,886 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-14 23:49:11,886 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 23:49:11,886 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 23:49:11,998 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 23:49:11,998 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 23:49:11,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 23:49:11,999 INFO L158 Benchmark]: Toolchain (without parser) took 4698.75ms. Allocated memory was 148.9MB in the beginning and 241.2MB in the end (delta: 92.3MB). Free memory was 98.9MB in the beginning and 149.7MB in the end (delta: -50.7MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-10-14 23:49:11,999 INFO L158 Benchmark]: CDTParser took 1.18ms. Allocated memory is still 148.9MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 23:49:12,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.50ms. Allocated memory is still 148.9MB. Free memory was 98.9MB in the beginning and 69.0MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-14 23:49:12,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.12ms. Allocated memory is still 148.9MB. Free memory was 69.0MB in the beginning and 65.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 23:49:12,000 INFO L158 Benchmark]: Boogie Preprocessor took 101.50ms. Allocated memory is still 148.9MB. Free memory was 65.4MB in the beginning and 59.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-14 23:49:12,001 INFO L158 Benchmark]: RCFGBuilder took 1216.66ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 59.7MB in the beginning and 85.0MB in the end (delta: -25.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2024-10-14 23:49:12,001 INFO L158 Benchmark]: TraceAbstraction took 2493.82ms. Allocated memory was 197.1MB in the beginning and 241.2MB in the end (delta: 44.0MB). Free memory was 83.9MB in the beginning and 154.9MB in the end (delta: -71.0MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-10-14 23:49:12,001 INFO L158 Benchmark]: Witness Printer took 127.18ms. Allocated memory is still 241.2MB. Free memory was 154.9MB in the beginning and 149.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 23:49:12,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18ms. Allocated memory is still 148.9MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.50ms. Allocated memory is still 148.9MB. Free memory was 98.9MB in the beginning and 69.0MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.12ms. Allocated memory is still 148.9MB. Free memory was 69.0MB in the beginning and 65.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.50ms. Allocated memory is still 148.9MB. Free memory was 65.4MB in the beginning and 59.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1216.66ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 59.7MB in the beginning and 85.0MB in the end (delta: -25.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2493.82ms. Allocated memory was 197.1MB in the beginning and 241.2MB in the end (delta: 44.0MB). Free memory was 83.9MB in the beginning and 154.9MB in the end (delta: -71.0MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 127.18ms. Allocated memory is still 241.2MB. Free memory was 154.9MB in the beginning and 149.7MB 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: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 861]: 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 5 procedures, 55 locations, 10 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: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2024-10-14 23:49:12,029 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