./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.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/goblint-regression/05-lval_ls_02-idx_nr.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 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:57:27,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:57:27,458 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:57:27,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:57:27,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:57:27,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:57:27,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:57:27,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:57:27,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:57:27,487 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:57:27,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:57:27,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:57:27,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:57:27,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:57:27,488 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:57:27,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:57:27,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:57:27,489 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:57:27,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:57:27,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:57:27,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:57:27,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:57:27,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:57:27,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:57:27,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:57:27,493 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:57:27,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:57:27,494 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:57:27,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:57:27,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:57:27,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:57:27,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:57:27,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:57:27,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:57:27,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:27,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:57:27,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:57:27,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:57:27,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:57:27,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:57:27,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:57:27,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:57:27,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:57:27,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:57:27,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd [2024-11-19 13:57:27,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:57:27,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:57:27,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:57:27,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:57:27,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:57:27,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2024-11-19 13:57:28,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:57:29,171 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:57:29,173 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2024-11-19 13:57:29,185 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648d33b25/6effbea2b8a84ae4b6686b7427c58ec6/FLAGab837ca45 [2024-11-19 13:57:29,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648d33b25/6effbea2b8a84ae4b6686b7427c58ec6 [2024-11-19 13:57:29,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:57:29,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:57:29,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:29,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:57:29,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:57:29,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee5615c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29, skipping insertion in model container [2024-11-19 13:57:29,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:57:29,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:29,845 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:57:29,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:29,905 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:57:29,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29 WrapperNode [2024-11-19 13:57:29,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:29,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:29,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:57:29,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:57:29,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,946 INFO L138 Inliner]: procedures = 162, calls = 58, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 89 [2024-11-19 13:57:29,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:29,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:57:29,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:57:29,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:57:29,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,960 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,974 INFO L175 MemorySlicer]: Split 50 memory accesses to 1 slices as follows [50]. 100 percent of accesses are in the largest equivalence class. The 50 initializations are split as follows [50]. The 0 writes are split as follows [0]. [2024-11-19 13:57:29,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:57:29,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:57:29,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:57:29,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:57:29,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (1/1) ... [2024-11-19 13:57:29,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:29,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:30,010 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 13:57:30,013 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 13:57:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 13:57:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:57:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 13:57:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 13:57:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:57:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 13:57:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:57:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:57:30,045 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 13:57:30,135 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:57:30,137 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:57:30,300 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:57:30,300 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:57:30,485 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:57:30,485 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 13:57:30,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:30 BoogieIcfgContainer [2024-11-19 13:57:30,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:57:30,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:57:30,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:57:30,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:57:30,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:57:29" (1/3) ... [2024-11-19 13:57:30,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c05143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:30, skipping insertion in model container [2024-11-19 13:57:30,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:29" (2/3) ... [2024-11-19 13:57:30,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c05143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:30, skipping insertion in model container [2024-11-19 13:57:30,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:30" (3/3) ... [2024-11-19 13:57:30,504 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2024-11-19 13:57:30,528 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:57:30,528 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 13:57:30,528 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:57:30,583 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:57:30,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 58 flow [2024-11-19 13:57:30,623 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-19 13:57:30,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:30,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-11-19 13:57:30,625 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 58 flow [2024-11-19 13:57:30,627 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 26 transitions, 55 flow [2024-11-19 13:57:30,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:57:30,637 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;@1f5b055a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:57:30,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-19 13:57:30,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:57:30,640 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 13:57:30,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:30,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:30,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 13:57:30,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:30,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:30,644 INFO L85 PathProgramCache]: Analyzing trace with hash 260202, now seen corresponding path program 1 times [2024-11-19 13:57:30,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:30,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944007572] [2024-11-19 13:57:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:30,881 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 13:57:30,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:30,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944007572] [2024-11-19 13:57:30,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944007572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:30,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:30,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:30,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243358241] [2024-11-19 13:57:30,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:30,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:30,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:30,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:30,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:30,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:30,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:30,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:30,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:31,010 INFO L124 PetriNetUnfolderBase]: 31/104 cut-off events. [2024-11-19 13:57:31,010 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:31,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 104 events. 31/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 341 event pairs, 30 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 164. Up to 79 conditions per place. [2024-11-19 13:57:31,013 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 17 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-19 13:57:31,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 99 flow [2024-11-19 13:57:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:31,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2024-11-19 13:57:31,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5462962962962963 [2024-11-19 13:57:31,024 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 4 states and 59 transitions. [2024-11-19 13:57:31,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 99 flow [2024-11-19 13:57:31,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:31,028 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 78 flow [2024-11-19 13:57:31,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2024-11-19 13:57:31,033 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2024-11-19 13:57:31,033 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 78 flow [2024-11-19 13:57:31,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:31,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:31,034 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 13:57:31,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:57:31,034 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:31,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:31,035 INFO L85 PathProgramCache]: Analyzing trace with hash -838004296, now seen corresponding path program 1 times [2024-11-19 13:57:31,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:31,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147605979] [2024-11-19 13:57:31,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:31,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:31,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:31,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:31,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147605979] [2024-11-19 13:57:31,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147605979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:31,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043300648] [2024-11-19 13:57:31,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:31,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:31,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:31,168 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) [2024-11-19 13:57:31,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:57:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:31,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:57:31,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:31,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:31,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043300648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:31,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:31,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 13:57:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189904869] [2024-11-19 13:57:31,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:31,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:31,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:31,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:31,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:31,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:31,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 13:57:31,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:31,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:31,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:31,371 INFO L124 PetriNetUnfolderBase]: 31/103 cut-off events. [2024-11-19 13:57:31,372 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 13:57:31,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 103 events. 31/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 338 event pairs, 30 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 181. Up to 74 conditions per place. [2024-11-19 13:57:31,374 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 13 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2024-11-19 13:57:31,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 112 flow [2024-11-19 13:57:31,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 74 transitions. [2024-11-19 13:57:31,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4567901234567901 [2024-11-19 13:57:31,376 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 78 flow. Second operand 6 states and 74 transitions. [2024-11-19 13:57:31,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 112 flow [2024-11-19 13:57:31,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:31,377 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 84 flow [2024-11-19 13:57:31,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2024-11-19 13:57:31,378 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2024-11-19 13:57:31,378 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 84 flow [2024-11-19 13:57:31,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 13:57:31,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:31,378 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 13:57:31,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:31,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:31,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:31,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash -208329146, now seen corresponding path program 1 times [2024-11-19 13:57:31,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:31,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050353678] [2024-11-19 13:57:31,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:31,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:57:31,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050353678] [2024-11-19 13:57:31,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050353678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:31,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:31,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:31,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109810410] [2024-11-19 13:57:31,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:31,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:57:31,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:31,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:57:31,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:57:31,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:31,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 84 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) [2024-11-19 13:57:31,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:31,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:31,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:31,684 INFO L124 PetriNetUnfolderBase]: 31/102 cut-off events. [2024-11-19 13:57:31,685 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 13:57:31,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 102 events. 31/102 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 339 event pairs, 30 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 177. Up to 77 conditions per place. [2024-11-19 13:57:31,686 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 14 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-11-19 13:57:31,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 116 flow [2024-11-19 13:57:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:57:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:57:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-19 13:57:31,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5432098765432098 [2024-11-19 13:57:31,687 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 84 flow. Second operand 3 states and 44 transitions. [2024-11-19 13:57:31,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 116 flow [2024-11-19 13:57:31,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 94 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 13:57:31,688 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 66 flow [2024-11-19 13:57:31,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2024-11-19 13:57:31,689 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-11-19 13:57:31,689 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 66 flow [2024-11-19 13:57:31,689 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) [2024-11-19 13:57:31,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:31,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:31,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:57:31,690 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:31,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:31,690 INFO L85 PathProgramCache]: Analyzing trace with hash -65683500, now seen corresponding path program 1 times [2024-11-19 13:57:31,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:31,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650986522] [2024-11-19 13:57:31,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:31,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650986522] [2024-11-19 13:57:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650986522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323299084] [2024-11-19 13:57:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:31,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:31,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:31,768 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) [2024-11-19 13:57:31,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:57:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:31,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:57:31,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:31,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:31,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:31,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323299084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:31,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:31,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:57:31,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452839446] [2024-11-19 13:57:31,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:31,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:31,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:31,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:31,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:31,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:31,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 66 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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 13:57:31,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:31,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:31,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:32,004 INFO L124 PetriNetUnfolderBase]: 31/106 cut-off events. [2024-11-19 13:57:32,005 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-19 13:57:32,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 106 events. 31/106 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 336 event pairs, 30 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 170. Up to 75 conditions per place. [2024-11-19 13:57:32,006 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 14 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2024-11-19 13:57:32,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 123 flow [2024-11-19 13:57:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:32,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2024-11-19 13:57:32,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.455026455026455 [2024-11-19 13:57:32,009 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 66 flow. Second operand 7 states and 86 transitions. [2024-11-19 13:57:32,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 123 flow [2024-11-19 13:57:32,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 109 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:32,010 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 92 flow [2024-11-19 13:57:32,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-19 13:57:32,011 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-11-19 13:57:32,011 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 92 flow [2024-11-19 13:57:32,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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 13:57:32,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:32,011 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:32,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:32,216 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,SelfDestructingSolverStorable3 [2024-11-19 13:57:32,217 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:32,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:32,218 INFO L85 PathProgramCache]: Analyzing trace with hash -271154540, now seen corresponding path program 2 times [2024-11-19 13:57:32,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:32,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505995791] [2024-11-19 13:57:32,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:32,228 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:32,229 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:57:32,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:32,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505995791] [2024-11-19 13:57:32,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505995791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:32,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:32,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943556610] [2024-11-19 13:57:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:32,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:32,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:32,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:32,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 92 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) [2024-11-19 13:57:32,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:32,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:32,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:32,323 INFO L124 PetriNetUnfolderBase]: 37/115 cut-off events. [2024-11-19 13:57:32,323 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-19 13:57:32,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 115 events. 37/115 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 349 event pairs, 16 based on Foata normal form. 6/114 useless extension candidates. Maximal degree in co-relation 196. Up to 67 conditions per place. [2024-11-19 13:57:32,324 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 26 selfloop transitions, 4 changer transitions 6/42 dead transitions. [2024-11-19 13:57:32,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 42 transitions, 190 flow [2024-11-19 13:57:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:57:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 13:57:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2024-11-19 13:57:32,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-19 13:57:32,326 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 92 flow. Second operand 5 states and 80 transitions. [2024-11-19 13:57:32,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 42 transitions, 190 flow [2024-11-19 13:57:32,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:32,327 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 113 flow [2024-11-19 13:57:32,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2024-11-19 13:57:32,328 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 13 predicate places. [2024-11-19 13:57:32,328 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 113 flow [2024-11-19 13:57:32,328 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) [2024-11-19 13:57:32,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:32,328 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:32,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:57:32,328 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:32,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:32,329 INFO L85 PathProgramCache]: Analyzing trace with hash -270890394, now seen corresponding path program 1 times [2024-11-19 13:57:32,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:32,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688349736] [2024-11-19 13:57:32,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:32,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:57:32,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:32,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688349736] [2024-11-19 13:57:32,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688349736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:32,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:32,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:32,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654737544] [2024-11-19 13:57:32,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:32,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:32,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:32,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:32,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:32,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:32,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 13:57:32,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:32,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:32,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:32,454 INFO L124 PetriNetUnfolderBase]: 24/96 cut-off events. [2024-11-19 13:57:32,455 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 13:57:32,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 96 events. 24/96 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 295 event pairs, 11 based on Foata normal form. 14/109 useless extension candidates. Maximal degree in co-relation 202. Up to 45 conditions per place. [2024-11-19 13:57:32,457 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 26 selfloop transitions, 4 changer transitions 4/40 dead transitions. [2024-11-19 13:57:32,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 208 flow [2024-11-19 13:57:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:57:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 13:57:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2024-11-19 13:57:32,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-11-19 13:57:32,458 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 113 flow. Second operand 5 states and 78 transitions. [2024-11-19 13:57:32,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 208 flow [2024-11-19 13:57:32,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 200 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:32,460 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 131 flow [2024-11-19 13:57:32,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2024-11-19 13:57:32,461 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2024-11-19 13:57:32,461 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 131 flow [2024-11-19 13:57:32,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 13:57:32,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:32,461 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:32,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 13:57:32,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:32,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:32,462 INFO L85 PathProgramCache]: Analyzing trace with hash -558898479, now seen corresponding path program 1 times [2024-11-19 13:57:32,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:32,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691263908] [2024-11-19 13:57:32,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:32,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:57:32,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:32,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691263908] [2024-11-19 13:57:32,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691263908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:32,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:32,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:32,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645795228] [2024-11-19 13:57:32,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:32,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:57:32,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:32,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:57:32,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:57:32,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 27 [2024-11-19 13:57:32,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 13:57:32,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:32,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 27 [2024-11-19 13:57:32,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:32,548 INFO L124 PetriNetUnfolderBase]: 10/62 cut-off events. [2024-11-19 13:57:32,548 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-19 13:57:32,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 62 events. 10/62 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 129 event pairs, 2 based on Foata normal form. 6/67 useless extension candidates. Maximal degree in co-relation 142. Up to 24 conditions per place. [2024-11-19 13:57:32,548 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 22 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2024-11-19 13:57:32,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 34 transitions, 189 flow [2024-11-19 13:57:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:57:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:57:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-11-19 13:57:32,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-19 13:57:32,550 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 131 flow. Second operand 3 states and 54 transitions. [2024-11-19 13:57:32,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 34 transitions, 189 flow [2024-11-19 13:57:32,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 182 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:32,551 INFO L231 Difference]: Finished difference. Result has 45 places, 31 transitions, 132 flow [2024-11-19 13:57:32,551 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2024-11-19 13:57:32,552 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 16 predicate places. [2024-11-19 13:57:32,552 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 132 flow [2024-11-19 13:57:32,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 13:57:32,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:32,552 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:32,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:57:32,553 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:32,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2133377836, now seen corresponding path program 1 times [2024-11-19 13:57:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:32,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908218980] [2024-11-19 13:57:32,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:32,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:32,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:32,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908218980] [2024-11-19 13:57:32,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908218980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:32,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500012187] [2024-11-19 13:57:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:32,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:32,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:32,668 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) [2024-11-19 13:57:32,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:57:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:32,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 13:57:32,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:32,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:32,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:32,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:32,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500012187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:32,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:32,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 13:57:32,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283264612] [2024-11-19 13:57:32,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:32,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 13:57:32,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:32,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 13:57:32,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 13:57:32,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:32,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 132 flow. Second operand has 18 states, 18 states have (on average 10.5) internal successors, (189), 18 states have internal predecessors, (189), 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 13:57:32,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:32,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:32,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:32,951 INFO L124 PetriNetUnfolderBase]: 10/74 cut-off events. [2024-11-19 13:57:32,951 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-19 13:57:32,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 74 events. 10/74 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 129 event pairs, 9 based on Foata normal form. 4/77 useless extension candidates. Maximal degree in co-relation 145. Up to 37 conditions per place. [2024-11-19 13:57:32,952 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 15 changer transitions 0/39 dead transitions. [2024-11-19 13:57:32,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 39 transitions, 242 flow [2024-11-19 13:57:32,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:57:32,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:57:32,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 168 transitions. [2024-11-19 13:57:32,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4148148148148148 [2024-11-19 13:57:32,953 INFO L175 Difference]: Start difference. First operand has 45 places, 31 transitions, 132 flow. Second operand 15 states and 168 transitions. [2024-11-19 13:57:32,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 39 transitions, 242 flow [2024-11-19 13:57:32,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 39 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:32,955 INFO L231 Difference]: Finished difference. Result has 62 places, 39 transitions, 225 flow [2024-11-19 13:57:32,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=225, PETRI_PLACES=62, PETRI_TRANSITIONS=39} [2024-11-19 13:57:32,955 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-11-19 13:57:32,955 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 39 transitions, 225 flow [2024-11-19 13:57:32,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.5) internal successors, (189), 18 states have internal predecessors, (189), 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 13:57:32,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:32,956 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:32,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:33,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:33,157 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:33,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:33,157 INFO L85 PathProgramCache]: Analyzing trace with hash -479759788, now seen corresponding path program 2 times [2024-11-19 13:57:33,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:33,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294670729] [2024-11-19 13:57:33,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:33,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:33,169 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:33,169 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 13:57:33,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:33,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294670729] [2024-11-19 13:57:33,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294670729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:33,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:33,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:33,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928144744] [2024-11-19 13:57:33,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:33,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:33,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:33,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-11-19 13:57:33,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 39 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:33,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:33,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-11-19 13:57:33,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:33,299 INFO L124 PetriNetUnfolderBase]: 13/75 cut-off events. [2024-11-19 13:57:33,300 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-19 13:57:33,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 75 events. 13/75 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 117 event pairs, 7 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 164. Up to 26 conditions per place. [2024-11-19 13:57:33,300 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 33 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2024-11-19 13:57:33,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 42 transitions, 307 flow [2024-11-19 13:57:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:33,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2024-11-19 13:57:33,301 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41975308641975306 [2024-11-19 13:57:33,301 INFO L175 Difference]: Start difference. First operand has 62 places, 39 transitions, 225 flow. Second operand 6 states and 68 transitions. [2024-11-19 13:57:33,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 42 transitions, 307 flow [2024-11-19 13:57:33,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 42 transitions, 297 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:33,306 INFO L231 Difference]: Finished difference. Result has 62 places, 38 transitions, 221 flow [2024-11-19 13:57:33,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=62, PETRI_TRANSITIONS=38} [2024-11-19 13:57:33,307 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-11-19 13:57:33,308 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 38 transitions, 221 flow [2024-11-19 13:57:33,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:33,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:33,308 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:33,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 13:57:33,309 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:33,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:33,309 INFO L85 PathProgramCache]: Analyzing trace with hash 528354898, now seen corresponding path program 1 times [2024-11-19 13:57:33,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:33,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13563687] [2024-11-19 13:57:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:33,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:33,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:33,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13563687] [2024-11-19 13:57:33,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13563687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:33,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089348796] [2024-11-19 13:57:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:33,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:33,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:33,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:57:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:33,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 13:57:33,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:33,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:33,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089348796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:33,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:33,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-19 13:57:33,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316033812] [2024-11-19 13:57:33,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:33,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 13:57:33,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:33,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 13:57:33,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 13:57:33,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-19 13:57:33,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 38 transitions, 221 flow. Second operand has 23 states, 23 states have (on average 10.434782608695652) internal successors, (240), 23 states have internal predecessors, (240), 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 13:57:33,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:33,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-19 13:57:33,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:33,948 INFO L124 PetriNetUnfolderBase]: 10/81 cut-off events. [2024-11-19 13:57:33,948 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-19 13:57:33,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 81 events. 10/81 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs, 9 based on Foata normal form. 3/83 useless extension candidates. Maximal degree in co-relation 198. Up to 37 conditions per place. [2024-11-19 13:57:33,948 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 21 changer transitions 0/44 dead transitions. [2024-11-19 13:57:33,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 44 transitions, 349 flow [2024-11-19 13:57:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:57:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:57:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 227 transitions. [2024-11-19 13:57:33,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.400352733686067 [2024-11-19 13:57:33,950 INFO L175 Difference]: Start difference. First operand has 62 places, 38 transitions, 221 flow. Second operand 21 states and 227 transitions. [2024-11-19 13:57:33,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 44 transitions, 349 flow [2024-11-19 13:57:33,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 44 transitions, 337 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:33,951 INFO L231 Difference]: Finished difference. Result has 81 places, 44 transitions, 320 flow [2024-11-19 13:57:33,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=320, PETRI_PLACES=81, PETRI_TRANSITIONS=44} [2024-11-19 13:57:33,952 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 52 predicate places. [2024-11-19 13:57:33,952 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 44 transitions, 320 flow [2024-11-19 13:57:33,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.434782608695652) internal successors, (240), 23 states have internal predecessors, (240), 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 13:57:33,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:33,953 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:33,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 13:57:34,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:34,153 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:34,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1109340028, now seen corresponding path program 2 times [2024-11-19 13:57:34,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:34,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108660413] [2024-11-19 13:57:34,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:34,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:34,165 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:34,165 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:34,197 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:34,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:34,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108660413] [2024-11-19 13:57:34,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108660413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:34,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:34,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:34,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627120322] [2024-11-19 13:57:34,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:34,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:34,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:34,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:34,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:34,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-11-19 13:57:34,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 44 transitions, 320 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:34,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:34,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-11-19 13:57:34,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:34,264 INFO L124 PetriNetUnfolderBase]: 12/81 cut-off events. [2024-11-19 13:57:34,264 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-11-19 13:57:34,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 81 events. 12/81 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 5 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 221. Up to 30 conditions per place. [2024-11-19 13:57:34,265 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 39 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2024-11-19 13:57:34,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 48 transitions, 416 flow [2024-11-19 13:57:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2024-11-19 13:57:34,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41975308641975306 [2024-11-19 13:57:34,266 INFO L175 Difference]: Start difference. First operand has 81 places, 44 transitions, 320 flow. Second operand 6 states and 68 transitions. [2024-11-19 13:57:34,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 48 transitions, 416 flow [2024-11-19 13:57:34,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 48 transitions, 373 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-19 13:57:34,268 INFO L231 Difference]: Finished difference. Result has 72 places, 43 transitions, 283 flow [2024-11-19 13:57:34,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=72, PETRI_TRANSITIONS=43} [2024-11-19 13:57:34,269 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2024-11-19 13:57:34,269 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 43 transitions, 283 flow [2024-11-19 13:57:34,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:34,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:34,269 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:34,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 13:57:34,269 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:34,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:34,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2009064663, now seen corresponding path program 1 times [2024-11-19 13:57:34,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:34,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820198372] [2024-11-19 13:57:34,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:34,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:34,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:34,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820198372] [2024-11-19 13:57:34,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820198372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:34,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:34,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:34,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972260677] [2024-11-19 13:57:34,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:34,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:34,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:34,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:34,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:34,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-11-19 13:57:34,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 43 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:34,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:34,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-11-19 13:57:34,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:34,453 INFO L124 PetriNetUnfolderBase]: 11/78 cut-off events. [2024-11-19 13:57:34,454 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2024-11-19 13:57:34,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 78 events. 11/78 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 5 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 207. Up to 29 conditions per place. [2024-11-19 13:57:34,455 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 32 selfloop transitions, 3 changer transitions 8/47 dead transitions. [2024-11-19 13:57:34,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 47 transitions, 377 flow [2024-11-19 13:57:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:34,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 74 transitions. [2024-11-19 13:57:34,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3915343915343915 [2024-11-19 13:57:34,456 INFO L175 Difference]: Start difference. First operand has 72 places, 43 transitions, 283 flow. Second operand 7 states and 74 transitions. [2024-11-19 13:57:34,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 47 transitions, 377 flow [2024-11-19 13:57:34,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 47 transitions, 363 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 13:57:34,457 INFO L231 Difference]: Finished difference. Result has 72 places, 37 transitions, 251 flow [2024-11-19 13:57:34,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=72, PETRI_TRANSITIONS=37} [2024-11-19 13:57:34,458 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2024-11-19 13:57:34,458 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 37 transitions, 251 flow [2024-11-19 13:57:34,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:34,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:34,458 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:34,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:57:34,459 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:34,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:34,460 INFO L85 PathProgramCache]: Analyzing trace with hash -29802240, now seen corresponding path program 1 times [2024-11-19 13:57:34,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:34,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157558354] [2024-11-19 13:57:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:34,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:34,543 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:34,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:34,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157558354] [2024-11-19 13:57:34,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157558354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:34,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:34,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:57:34,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572064356] [2024-11-19 13:57:34,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:34,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:34,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:34,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:34,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:57:34,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-11-19 13:57:34,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 37 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:34,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:34,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-11-19 13:57:34,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:34,589 INFO L124 PetriNetUnfolderBase]: 8/62 cut-off events. [2024-11-19 13:57:34,589 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-19 13:57:34,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 62 events. 8/62 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 2 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 203. Up to 29 conditions per place. [2024-11-19 13:57:34,590 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-11-19 13:57:34,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 40 transitions, 328 flow [2024-11-19 13:57:34,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:34,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-11-19 13:57:34,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37037037037037035 [2024-11-19 13:57:34,591 INFO L175 Difference]: Start difference. First operand has 72 places, 37 transitions, 251 flow. Second operand 6 states and 60 transitions. [2024-11-19 13:57:34,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 40 transitions, 328 flow [2024-11-19 13:57:34,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 40 transitions, 316 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-19 13:57:34,592 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-11-19 13:57:34,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2024-11-19 13:57:34,592 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 32 predicate places. [2024-11-19 13:57:34,592 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-11-19 13:57:34,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 13:57:34,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-19 13:57:34,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-19 13:57:34,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-19 13:57:34,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-19 13:57:34,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-19 13:57:34,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-19 13:57:34,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-19 13:57:34,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-19 13:57:34,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-19 13:57:34,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:57:34,596 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:34,600 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 13:57:34,600 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 13:57:34,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:57:34 BasicIcfg [2024-11-19 13:57:34,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 13:57:34,606 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 13:57:34,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 13:57:34,606 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 13:57:34,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:30" (3/4) ... [2024-11-19 13:57:34,607 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 13:57:34,609 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-19 13:57:34,612 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2024-11-19 13:57:34,614 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-19 13:57:34,614 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 13:57:34,675 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 13:57:34,675 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 13:57:34,675 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 13:57:34,676 INFO L158 Benchmark]: Toolchain (without parser) took 5159.08ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 152.0MB in the beginning and 110.1MB in the end (delta: 41.9MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2024-11-19 13:57:34,676 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 13:57:34,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.84ms. Allocated memory is still 182.5MB. Free memory was 152.0MB in the beginning and 128.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 13:57:34,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.67ms. Allocated memory is still 182.5MB. Free memory was 128.5MB in the beginning and 126.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 13:57:34,677 INFO L158 Benchmark]: Boogie Preprocessor took 38.54ms. Allocated memory is still 182.5MB. Free memory was 126.3MB in the beginning and 124.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 13:57:34,677 INFO L158 Benchmark]: RCFGBuilder took 499.90ms. Allocated memory is still 182.5MB. Free memory was 123.2MB in the beginning and 53.0MB in the end (delta: 70.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2024-11-19 13:57:34,677 INFO L158 Benchmark]: TraceAbstraction took 4118.08ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 51.9MB in the beginning and 115.4MB in the end (delta: -63.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 13:57:34,677 INFO L158 Benchmark]: Witness Printer took 69.81ms. Allocated memory is still 220.2MB. Free memory was 115.4MB in the beginning and 110.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 13:57:34,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.84ms. Allocated memory is still 182.5MB. Free memory was 152.0MB in the beginning and 128.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.67ms. Allocated memory is still 182.5MB. Free memory was 128.5MB in the beginning and 126.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.54ms. Allocated memory is still 182.5MB. Free memory was 126.3MB in the beginning and 124.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 499.90ms. Allocated memory is still 182.5MB. Free memory was 123.2MB in the beginning and 53.0MB in the end (delta: 70.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4118.08ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 51.9MB in the beginning and 115.4MB in the end (delta: -63.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.81ms. Allocated memory is still 220.2MB. Free memory was 115.4MB in the beginning and 110.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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 3 procedures, 38 locations, 9 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: 4.0s, OverallIterations: 13, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1028 IncrementalHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 22 mSDtfsCounter, 1028 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 104 SyntacticMatches, 11 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=320occurred in iteration=10, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 372 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 1060 SizeOfPredicates, 13 NumberOfNonLiveVariables, 737 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 546/797 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 13:57:34,698 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