./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind1-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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-theta/unwind1-nondet.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 591990a0070f9287f734f2988edce5e1b5a43791c74b5c6b7374ff93ddaa2267 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:16:21,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:16:21,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:16:21,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:16:21,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:16:21,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:16:21,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:16:21,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:16:21,275 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:16:21,277 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:16:21,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:16:21,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:16:21,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:16:21,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:16:21,280 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:16:21,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:16:21,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:16:21,281 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:16:21,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:16:21,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:16:21,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:16:21,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:16:21,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:16:21,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:16:21,282 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:16:21,283 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:16:21,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:16:21,283 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:16:21,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:16:21,283 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:16:21,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:16:21,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:16:21,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:16:21,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:16:21,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:16:21,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:16:21,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:16:21,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:16:21,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:16:21,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:16:21,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:16:21,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:16:21,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:16:21,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:16:21,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 591990a0070f9287f734f2988edce5e1b5a43791c74b5c6b7374ff93ddaa2267 [2024-11-09 15:16:21,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:16:21,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:16:21,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:16:21,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:16:21,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:16:21,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind1-nondet.i [2024-11-09 15:16:22,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:16:23,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:16:23,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-nondet.i [2024-11-09 15:16:23,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a5053f8/d1e6ad2f29894fcbb384fcdd577f955e/FLAG51b2ca243 [2024-11-09 15:16:23,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a5053f8/d1e6ad2f29894fcbb384fcdd577f955e [2024-11-09 15:16:23,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:16:23,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:16:23,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:16:23,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:16:23,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:16:23,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b778e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23, skipping insertion in model container [2024-11-09 15:16:23,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:16:23,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:16:23,406 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:16:23,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:16:23,483 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:16:23,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23 WrapperNode [2024-11-09 15:16:23,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:16:23,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:16:23,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:16:23,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:16:23,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,525 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2024-11-09 15:16:23,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:16:23,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:16:23,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:16:23,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:16:23,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,553 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]. [2024-11-09 15:16:23,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:16:23,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:16:23,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:16:23,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:16:23,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (1/1) ... [2024-11-09 15:16:23,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:16:23,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:23,603 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) [2024-11-09 15:16:23,606 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 [2024-11-09 15:16:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:16:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-09 15:16:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-09 15:16:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-09 15:16:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-09 15:16:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:16:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:16:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:16:23,646 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:16:23,761 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:16:23,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:16:23,902 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:16:23,902 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:16:23,994 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:16:23,994 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:16:23,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:16:23 BoogieIcfgContainer [2024-11-09 15:16:23,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:16:23,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:16:23,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:16:24,002 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:16:24,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:16:23" (1/3) ... [2024-11-09 15:16:24,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff5e8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:16:24, skipping insertion in model container [2024-11-09 15:16:24,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:23" (2/3) ... [2024-11-09 15:16:24,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff5e8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:16:24, skipping insertion in model container [2024-11-09 15:16:24,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:16:23" (3/3) ... [2024-11-09 15:16:24,007 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-nondet.i [2024-11-09 15:16:24,021 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:16:24,022 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 15:16:24,022 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:16:24,053 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:16:24,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 68 flow [2024-11-09 15:16:24,104 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-09 15:16:24,104 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:16:24,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 25 events. 2/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-11-09 15:16:24,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 27 transitions, 68 flow [2024-11-09 15:16:24,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 55 flow [2024-11-09 15:16:24,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:16:24,125 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;@2ac09323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:16:24,125 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 15:16:24,129 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:16:24,129 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-09 15:16:24,130 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:16:24,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:24,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:16:24,131 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 15:16:24,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:24,136 INFO L85 PathProgramCache]: Analyzing trace with hash 220118807, now seen corresponding path program 1 times [2024-11-09 15:16:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:24,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512399341] [2024-11-09 15:16:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:24,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:24,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512399341] [2024-11-09 15:16:24,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512399341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:24,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:24,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:16:24,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010433908] [2024-11-09 15:16:24,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:24,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:16:24,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:16:24,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:16:24,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-09 15:16:24,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-09 15:16:24,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:24,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-09 15:16:24,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:24,472 INFO L124 PetriNetUnfolderBase]: 82/192 cut-off events. [2024-11-09 15:16:24,472 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 15:16:24,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 192 events. 82/192 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 841 event pairs, 66 based on Foata normal form. 10/163 useless extension candidates. Maximal degree in co-relation 328. Up to 144 conditions per place. [2024-11-09 15:16:24,478 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 14 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2024-11-09 15:16:24,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 83 flow [2024-11-09 15:16:24,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:16:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:16:24,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-11-09 15:16:24,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2024-11-09 15:16:24,494 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 55 flow. Second operand 3 states and 43 transitions. [2024-11-09 15:16:24,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 83 flow [2024-11-09 15:16:24,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:16:24,498 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 50 flow [2024-11-09 15:16:24,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2024-11-09 15:16:24,503 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-09 15:16:24,504 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 50 flow [2024-11-09 15:16:24,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-09 15:16:24,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:24,505 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:16:24,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:16:24,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 15:16:24,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1766251334, now seen corresponding path program 1 times [2024-11-09 15:16:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664912447] [2024-11-09 15:16:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:24,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:24,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:24,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664912447] [2024-11-09 15:16:24,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664912447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:24,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:24,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:16:24,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061414500] [2024-11-09 15:16:24,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:24,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:16:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:24,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:16:24,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:16:24,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-09 15:16:24,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-09 15:16:24,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:24,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-09 15:16:24,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:24,635 INFO L124 PetriNetUnfolderBase]: 82/189 cut-off events. [2024-11-09 15:16:24,635 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:16:24,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 189 events. 82/189 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 801 event pairs, 66 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 344. Up to 144 conditions per place. [2024-11-09 15:16:24,639 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 14 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2024-11-09 15:16:24,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 78 flow [2024-11-09 15:16:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:16:24,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:16:24,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2024-11-09 15:16:24,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49382716049382713 [2024-11-09 15:16:24,641 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 3 states and 40 transitions. [2024-11-09 15:16:24,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 78 flow [2024-11-09 15:16:24,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:16:24,642 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 49 flow [2024-11-09 15:16:24,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2024-11-09 15:16:24,644 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-09 15:16:24,644 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 49 flow [2024-11-09 15:16:24,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-09 15:16:24,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:24,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:24,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:16:24,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 15:16:24,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:24,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1077630793, now seen corresponding path program 1 times [2024-11-09 15:16:24,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:24,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177726730] [2024-11-09 15:16:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:24,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:24,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:24,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177726730] [2024-11-09 15:16:24,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177726730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:24,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:24,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:16:24,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516726132] [2024-11-09 15:16:24,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:24,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:16:24,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:16:24,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:16:24,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-09 15:16:24,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:16:24,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:24,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-09 15:16:24,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:24,879 INFO L124 PetriNetUnfolderBase]: 72/157 cut-off events. [2024-11-09 15:16:24,880 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:16:24,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 157 events. 72/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 539 event pairs, 18 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 307. Up to 55 conditions per place. [2024-11-09 15:16:24,882 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 15 selfloop transitions, 3 changer transitions 13/36 dead transitions. [2024-11-09 15:16:24,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 144 flow [2024-11-09 15:16:24,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:16:24,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:16:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2024-11-09 15:16:24,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-11-09 15:16:24,884 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 49 flow. Second operand 5 states and 78 transitions. [2024-11-09 15:16:24,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 144 flow [2024-11-09 15:16:24,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:16:24,885 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 61 flow [2024-11-09 15:16:24,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2024-11-09 15:16:24,887 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2024-11-09 15:16:24,887 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 61 flow [2024-11-09 15:16:24,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:16:24,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:24,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:24,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:16:24,887 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 15:16:24,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:24,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1474817840, now seen corresponding path program 1 times [2024-11-09 15:16:24,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:24,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984735600] [2024-11-09 15:16:24,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:24,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:24,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:24,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984735600] [2024-11-09 15:16:24,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984735600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:24,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:24,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:16:24,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35338702] [2024-11-09 15:16:24,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:24,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:16:24,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:24,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:16:24,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:16:24,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-09 15:16:24,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-09 15:16:24,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:24,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-09 15:16:24,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:25,049 INFO L124 PetriNetUnfolderBase]: 50/121 cut-off events. [2024-11-09 15:16:25,049 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-09 15:16:25,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 121 events. 50/121 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 332 event pairs, 32 based on Foata normal form. 5/115 useless extension candidates. Maximal degree in co-relation 266. Up to 80 conditions per place. [2024-11-09 15:16:25,051 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 20 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-09 15:16:25,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 129 flow [2024-11-09 15:16:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:16:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:16:25,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2024-11-09 15:16:25,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2024-11-09 15:16:25,053 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 61 flow. Second operand 4 states and 61 transitions. [2024-11-09 15:16:25,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 129 flow [2024-11-09 15:16:25,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 115 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-09 15:16:25,055 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 73 flow [2024-11-09 15:16:25,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2024-11-09 15:16:25,058 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2024-11-09 15:16:25,058 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 73 flow [2024-11-09 15:16:25,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-09 15:16:25,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:25,058 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:25,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:16:25,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 15:16:25,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:25,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1217413740, now seen corresponding path program 1 times [2024-11-09 15:16:25,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:25,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503662969] [2024-11-09 15:16:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:25,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:25,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:25,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503662969] [2024-11-09 15:16:25,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503662969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:25,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479541031] [2024-11-09 15:16:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:25,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:25,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:25,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:25,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:16:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:25,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:16:25,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:25,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:16:25,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479541031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:25,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:16:25,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:16:25,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274121376] [2024-11-09 15:16:25,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:25,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:16:25,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:25,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:16:25,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:16:25,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-09 15:16:25,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-09 15:16:25,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:25,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-09 15:16:25,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:25,382 INFO L124 PetriNetUnfolderBase]: 45/111 cut-off events. [2024-11-09 15:16:25,383 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-09 15:16:25,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 111 events. 45/111 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 289 event pairs, 12 based on Foata normal form. 5/105 useless extension candidates. Maximal degree in co-relation 260. Up to 35 conditions per place. [2024-11-09 15:16:25,384 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 23 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2024-11-09 15:16:25,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 153 flow [2024-11-09 15:16:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:16:25,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:16:25,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 83 transitions. [2024-11-09 15:16:25,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5123456790123457 [2024-11-09 15:16:25,386 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 73 flow. Second operand 6 states and 83 transitions. [2024-11-09 15:16:25,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 153 flow [2024-11-09 15:16:25,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:16:25,387 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 77 flow [2024-11-09 15:16:25,388 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2024-11-09 15:16:25,388 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2024-11-09 15:16:25,388 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 77 flow [2024-11-09 15:16:25,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-09 15:16:25,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:25,389 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:25,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:16:25,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:25,589 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 15:16:25,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:25,590 INFO L85 PathProgramCache]: Analyzing trace with hash -914879475, now seen corresponding path program 1 times [2024-11-09 15:16:25,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:25,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84008919] [2024-11-09 15:16:25,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:25,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:25,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:25,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84008919] [2024-11-09 15:16:25,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84008919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:25,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028402226] [2024-11-09 15:16:25,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:25,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:25,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:25,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:25,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:16:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:25,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:16:25,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:25,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:25,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028402226] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:25,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:25,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:16:25,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326001671] [2024-11-09 15:16:25,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:25,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:16:25,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:25,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:16:25,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:16:25,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-09 15:16:25,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 77 flow. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-09 15:16:25,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:25,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-09 15:16:25,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:25,926 INFO L124 PetriNetUnfolderBase]: 75/186 cut-off events. [2024-11-09 15:16:25,927 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-09 15:16:25,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 186 events. 75/186 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 490 event pairs, 27 based on Foata normal form. 15/195 useless extension candidates. Maximal degree in co-relation 475. Up to 70 conditions per place. [2024-11-09 15:16:25,929 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 37 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2024-11-09 15:16:25,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 261 flow [2024-11-09 15:16:25,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:16:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:16:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2024-11-09 15:16:25,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2024-11-09 15:16:25,931 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 77 flow. Second operand 10 states and 139 transitions. [2024-11-09 15:16:25,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 261 flow [2024-11-09 15:16:25,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 235 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-09 15:16:25,933 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 121 flow [2024-11-09 15:16:25,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=121, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2024-11-09 15:16:25,934 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-11-09 15:16:25,934 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 121 flow [2024-11-09 15:16:25,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-09 15:16:25,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:25,936 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:25,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:16:26,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 15:16:26,141 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 15:16:26,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash -462949079, now seen corresponding path program 2 times [2024-11-09 15:16:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:26,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729752728] [2024-11-09 15:16:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:26,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:26,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729752728] [2024-11-09 15:16:26,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729752728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:26,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619795133] [2024-11-09 15:16:26,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:16:26,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:26,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:26,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:26,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:16:26,335 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:16:26,336 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:16:26,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:16:26,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:16:26,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:16:26,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619795133] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:26,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:26,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 19 [2024-11-09 15:16:26,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019288397] [2024-11-09 15:16:26,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:26,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 15:16:26,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:26,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 15:16:26,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-09 15:16:26,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-09 15:16:26,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 121 flow. Second operand has 20 states, 20 states have (on average 6.1) internal successors, (122), 20 states have internal predecessors, (122), 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) [2024-11-09 15:16:26,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:26,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-09 15:16:26,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:27,089 INFO L124 PetriNetUnfolderBase]: 154/376 cut-off events. [2024-11-09 15:16:27,090 INFO L125 PetriNetUnfolderBase]: For 576/576 co-relation queries the response was YES. [2024-11-09 15:16:27,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 376 events. 154/376 cut-off events. For 576/576 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1357 event pairs, 18 based on Foata normal form. 20/391 useless extension candidates. Maximal degree in co-relation 1004. Up to 61 conditions per place. [2024-11-09 15:16:27,091 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2024-11-09 15:16:27,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 118 transitions, 620 flow [2024-11-09 15:16:27,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 15:16:27,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-09 15:16:27,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 232 transitions. [2024-11-09 15:16:27,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30687830687830686 [2024-11-09 15:16:27,093 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 121 flow. Second operand 28 states and 232 transitions. [2024-11-09 15:16:27,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 118 transitions, 620 flow [2024-11-09 15:16:27,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 118 transitions, 576 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-09 15:16:27,100 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-09 15:16:27,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-09 15:16:27,101 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 32 predicate places. [2024-11-09 15:16:27,101 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-09 15:16:27,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.1) internal successors, (122), 20 states have internal predecessors, (122), 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) [2024-11-09 15:16:27,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-09 15:16:27,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2024-11-09 15:16:27,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-09 15:16:27,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-09 15:16:27,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-09 15:16:27,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-09 15:16:27,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-09 15:16:27,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-09 15:16:27,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-09 15:16:27,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-09 15:16:27,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:16:27,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:27,305 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-09 15:16:27,309 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:16:27,310 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:16:27,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:16:27 BasicIcfg [2024-11-09 15:16:27,319 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:16:27,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:16:27,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:16:27,320 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:16:27,320 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:16:23" (3/4) ... [2024-11-09 15:16:27,322 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:16:27,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-09 15:16:27,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-09 15:16:27,327 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-09 15:16:27,328 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 15:16:27,328 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 15:16:27,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 15:16:27,396 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:16:27,396 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:16:27,396 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:16:27,397 INFO L158 Benchmark]: Toolchain (without parser) took 4326.10ms. Allocated memory is still 184.5MB. Free memory was 114.1MB in the beginning and 68.4MB in the end (delta: 45.7MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-11-09 15:16:27,397 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:16:27,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.21ms. Allocated memory is still 184.5MB. Free memory was 114.1MB in the beginning and 91.6MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 15:16:27,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.93ms. Allocated memory is still 184.5MB. Free memory was 91.6MB in the beginning and 89.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:16:27,397 INFO L158 Benchmark]: Boogie Preprocessor took 40.08ms. Allocated memory is still 184.5MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:16:27,398 INFO L158 Benchmark]: RCFGBuilder took 430.48ms. Allocated memory is still 184.5MB. Free memory was 87.7MB in the beginning and 138.0MB in the end (delta: -50.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-09 15:16:27,398 INFO L158 Benchmark]: TraceAbstraction took 3320.34ms. Allocated memory is still 184.5MB. Free memory was 137.0MB in the beginning and 72.4MB in the end (delta: 64.6MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2024-11-09 15:16:27,398 INFO L158 Benchmark]: Witness Printer took 76.48ms. Allocated memory is still 184.5MB. Free memory was 72.4MB in the beginning and 68.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:16:27,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.21ms. Allocated memory is still 184.5MB. Free memory was 114.1MB in the beginning and 91.6MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.93ms. Allocated memory is still 184.5MB. Free memory was 91.6MB in the beginning and 89.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.08ms. Allocated memory is still 184.5MB. Free memory was 89.8MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.48ms. Allocated memory is still 184.5MB. Free memory was 87.7MB in the beginning and 138.0MB in the end (delta: -50.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3320.34ms. Allocated memory is still 184.5MB. Free memory was 137.0MB in the beginning and 72.4MB in the end (delta: 64.6MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * Witness Printer took 76.48ms. Allocated memory is still 184.5MB. Free memory was 72.4MB in the beginning and 68.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: 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, 45 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: 3.2s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 554 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 516 mSDsluCounter, 234 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 222 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 664 IncrementalHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 12 mSDtfsCounter, 664 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=6, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 128 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 9 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 46/103 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! [2024-11-09 15:16:27,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE