./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe029_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/safe029_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 ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:54:09,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:54:09,942 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:54:09,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:54:09,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:54:09,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:54:09,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:54:09,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:54:09,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:54:09,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:54:09,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:54:09,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:54:09,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:54:09,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:54:09,976 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:54:09,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:54:09,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:54:09,979 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:54:09,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:54:09,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:54:09,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:54:09,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:54:09,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:54:09,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:54:09,980 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:54:09,980 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:54:09,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:54:09,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:54:09,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:54:09,982 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:54:09,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:54:09,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:54:09,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:54:09,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:54:09,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:54:09,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:54:09,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:54:09,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:54:09,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:54:09,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:54:09,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:54:09,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:54:09,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:54:09,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:54:09,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2024-11-19 13:54:10,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:54:10,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:54:10,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:54:10,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:54:10,252 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:54:10,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2024-11-19 13:54:11,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:54:11,913 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:54:11,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2024-11-19 13:54:11,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4120ff91b/6283a6fa0af44d5c9c1d2b5109fca76e/FLAGd4401604d [2024-11-19 13:54:11,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4120ff91b/6283a6fa0af44d5c9c1d2b5109fca76e [2024-11-19 13:54:11,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:54:11,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:54:11,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:54:11,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:54:11,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:54:11,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:54:11" (1/1) ... [2024-11-19 13:54:11,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41599c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:11, skipping insertion in model container [2024-11-19 13:54:11,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:54:11" (1/1) ... [2024-11-19 13:54:11,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:54:12,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:54:12,417 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:54:12,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:54:12,544 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:54:12,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12 WrapperNode [2024-11-19 13:54:12,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:54:12,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:54:12,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:54:12,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:54:12,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,626 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 50 [2024-11-19 13:54:12,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:54:12,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:54:12,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:54:12,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:54:12,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,682 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 13:54:12,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,693 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:54:12,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:54:12,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:54:12,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:54:12,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (1/1) ... [2024-11-19 13:54:12,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:54:12,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:54:12,749 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 13:54:12,753 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 13:54:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 13:54:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:54:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 13:54:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 13:54:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 13:54:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 13:54:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:54:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 13:54:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:54:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:54:12,796 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 13:54:12,886 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:54:12,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:54:13,027 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:54:13,027 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:54:13,130 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:54:13,130 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 13:54:13,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:54:13 BoogieIcfgContainer [2024-11-19 13:54:13,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:54:13,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:54:13,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:54:13,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:54:13,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:54:11" (1/3) ... [2024-11-19 13:54:13,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223453af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:54:13, skipping insertion in model container [2024-11-19 13:54:13,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:12" (2/3) ... [2024-11-19 13:54:13,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223453af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:54:13, skipping insertion in model container [2024-11-19 13:54:13,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:54:13" (3/3) ... [2024-11-19 13:54:13,145 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2024-11-19 13:54:13,162 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:54:13,162 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 13:54:13,162 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:54:13,196 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:54:13,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 64 flow [2024-11-19 13:54:13,248 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-19 13:54:13,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:54:13,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-19 13:54:13,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 28 transitions, 64 flow [2024-11-19 13:54:13,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 58 flow [2024-11-19 13:54:13,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:54:13,268 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;@2b45a6a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:54:13,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-19 13:54:13,274 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:54:13,276 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-19 13:54:13,276 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:54:13,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:54:13,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:54:13,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:54:13,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:54:13,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1028747551, now seen corresponding path program 1 times [2024-11-19 13:54:13,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:54:13,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985694780] [2024-11-19 13:54:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:54:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:54:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:54:13,576 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 13:54:13,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:54:13,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985694780] [2024-11-19 13:54:13,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985694780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:54:13,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:54:13,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:54:13,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162367261] [2024-11-19 13:54:13,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:54:13,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:54:13,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:54:13,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:54:13,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:54:13,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-19 13:54:13,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 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 13:54:13,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:54:13,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-19 13:54:13,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:54:13,685 INFO L124 PetriNetUnfolderBase]: 84/170 cut-off events. [2024-11-19 13:54:13,686 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 13:54:13,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 170 events. 84/170 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 715 event pairs, 24 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 331. Up to 153 conditions per place. [2024-11-19 13:54:13,690 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 17 selfloop transitions, 3 changer transitions 2/33 dead transitions. [2024-11-19 13:54:13,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 119 flow [2024-11-19 13:54:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:54:13,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:54:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-19 13:54:13,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7738095238095238 [2024-11-19 13:54:13,699 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 58 flow. Second operand 3 states and 65 transitions. [2024-11-19 13:54:13,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 119 flow [2024-11-19 13:54:13,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:54:13,703 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 73 flow [2024-11-19 13:54:13,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-19 13:54:13,707 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-11-19 13:54:13,707 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 73 flow [2024-11-19 13:54:13,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 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 13:54:13,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:54:13,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:54:13,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:54:13,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:54:13,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:54:13,709 INFO L85 PathProgramCache]: Analyzing trace with hash 47982139, now seen corresponding path program 1 times [2024-11-19 13:54:13,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:54:13,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13669345] [2024-11-19 13:54:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:54:13,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:54:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:54:13,791 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 13:54:13,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:54:13,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13669345] [2024-11-19 13:54:13,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13669345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:54:13,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:54:13,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:54:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227272359] [2024-11-19 13:54:13,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:54:13,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:54:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:54:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:54:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:54:13,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-19 13:54:13,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 13:54:13,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:54:13,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-19 13:54:13,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:54:13,878 INFO L124 PetriNetUnfolderBase]: 36/90 cut-off events. [2024-11-19 13:54:13,880 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-19 13:54:13,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 90 events. 36/90 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 306 event pairs, 8 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 207. Up to 72 conditions per place. [2024-11-19 13:54:13,881 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 15 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2024-11-19 13:54:13,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 113 flow [2024-11-19 13:54:13,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:54:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:54:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-11-19 13:54:13,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-19 13:54:13,883 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 73 flow. Second operand 4 states and 72 transitions. [2024-11-19 13:54:13,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 113 flow [2024-11-19 13:54:13,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:54:13,884 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 68 flow [2024-11-19 13:54:13,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-11-19 13:54:13,884 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-11-19 13:54:13,885 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 68 flow [2024-11-19 13:54:13,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 13:54:13,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:54:13,885 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:54:13,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 13:54:13,885 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:54:13,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:54:13,886 INFO L85 PathProgramCache]: Analyzing trace with hash -489363976, now seen corresponding path program 1 times [2024-11-19 13:54:13,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:54:13,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037443883] [2024-11-19 13:54:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:54:13,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:54:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:54:13,935 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 13:54:13,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:54:13,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037443883] [2024-11-19 13:54:13,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037443883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:54:13,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:54:13,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:54:13,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135103564] [2024-11-19 13:54:13,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:54:13,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:54:13,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:54:13,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:54:13,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:54:13,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-19 13:54:13,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 13:54:13,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:54:13,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-19 13:54:13,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:54:13,983 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2024-11-19 13:54:13,983 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-19 13:54:13,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 54 events. 16/54 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 148 event pairs, 0 based on Foata normal form. 16/65 useless extension candidates. Maximal degree in co-relation 119. Up to 36 conditions per place. [2024-11-19 13:54:13,984 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2024-11-19 13:54:13,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 104 flow [2024-11-19 13:54:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:54:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:54:13,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-11-19 13:54:13,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-19 13:54:13,986 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 68 flow. Second operand 4 states and 70 transitions. [2024-11-19 13:54:13,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 104 flow [2024-11-19 13:54:13,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 97 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 13:54:13,988 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2024-11-19 13:54:13,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2024-11-19 13:54:13,989 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-11-19 13:54:13,989 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2024-11-19 13:54:13,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 13:54:13,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-19 13:54:13,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-19 13:54:13,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-19 13:54:13,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-19 13:54:13,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-19 13:54:13,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-19 13:54:13,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-19 13:54:13,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-19 13:54:13,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-19 13:54:13,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-19 13:54:13,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:54:13,994 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-19 13:54:13,998 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 13:54:13,998 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 13:54:14,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:54:14 BasicIcfg [2024-11-19 13:54:14,003 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 13:54:14,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 13:54:14,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 13:54:14,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 13:54:14,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:54:13" (3/4) ... [2024-11-19 13:54:14,005 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 13:54:14,007 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 13:54:14,007 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 13:54:14,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-19 13:54:14,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-19 13:54:14,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 13:54:14,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 13:54:14,070 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 13:54:14,070 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 13:54:14,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 13:54:14,071 INFO L158 Benchmark]: Toolchain (without parser) took 2128.92ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 68.3MB in the end (delta: 38.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-11-19 13:54:14,071 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 118.9MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 13:54:14,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.32ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 84.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 13:54:14,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.08ms. Allocated memory is still 151.0MB. Free memory was 84.1MB in the beginning and 81.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 13:54:14,072 INFO L158 Benchmark]: Boogie Preprocessor took 84.88ms. Allocated memory is still 151.0MB. Free memory was 81.9MB in the beginning and 80.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 13:54:14,072 INFO L158 Benchmark]: RCFGBuilder took 418.02ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 60.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 13:54:14,072 INFO L158 Benchmark]: TraceAbstraction took 867.17ms. Allocated memory is still 151.0MB. Free memory was 59.5MB in the beginning and 72.5MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 13:54:14,072 INFO L158 Benchmark]: Witness Printer took 67.03ms. Allocated memory is still 151.0MB. Free memory was 72.5MB in the beginning and 68.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 13:54:14,074 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 118.9MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 606.32ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 84.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.08ms. Allocated memory is still 151.0MB. Free memory was 84.1MB in the beginning and 81.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.88ms. Allocated memory is still 151.0MB. Free memory was 81.9MB in the beginning and 80.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.02ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 60.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 867.17ms. Allocated memory is still 151.0MB. Free memory was 59.5MB in the beginning and 72.5MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.03ms. Allocated memory is still 151.0MB. Free memory was 72.5MB in the beginning and 68.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: 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, 49 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 94 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=73occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 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! [2024-11-19 13:54:14,096 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