./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-wip.fs.cvc5-61a6796-m [2024-10-14 23:52:57,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 23:52:57,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 23:52:57,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 23:52:57,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 23:52:57,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 23:52:57,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 23:52:57,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 23:52:57,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 23:52:57,774 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 23:52:57,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 23:52:57,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 23:52:57,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 23:52:57,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 23:52:57,777 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 23:52:57,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 23:52:57,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 23:52:57,779 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 23:52:57,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 23:52:57,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 23:52:57,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 23:52:57,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 23:52:57,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 23:52:57,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 23:52:57,782 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 23:52:57,782 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 23:52:57,782 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 23:52:57,783 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 23:52:57,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 23:52:57,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 23:52:57,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 23:52:57,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 23:52:57,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 23:52:57,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 23:52:57,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:52:57,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 23:52:57,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 23:52:57,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 23:52:57,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 23:52:57,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 23:52:57,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 23:52:57,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 23:52:57,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 23:52:57,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 23:52:57,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd [2024-10-14 23:52:58,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 23:52:58,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 23:52:58,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 23:52:58,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 23:52:58,105 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 23:52:58,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2024-10-14 23:52:59,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 23:52:59,818 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 23:52:59,819 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2024-10-14 23:52:59,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f88530f9/627a8ed8ad18493ca24ae9fc49ccd0ef/FLAG508b54d75 [2024-10-14 23:52:59,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f88530f9/627a8ed8ad18493ca24ae9fc49ccd0ef [2024-10-14 23:52:59,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 23:52:59,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 23:52:59,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 23:52:59,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 23:52:59,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 23:52:59,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:59" (1/1) ... [2024-10-14 23:52:59,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c280a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59, skipping insertion in model container [2024-10-14 23:52:59,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:59" (1/1) ... [2024-10-14 23:52:59,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 23:53:00,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:53:00,251 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 23:53:00,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:53:00,351 INFO L204 MainTranslator]: Completed translation [2024-10-14 23:53:00,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00 WrapperNode [2024-10-14 23:53:00,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 23:53:00,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 23:53:00,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 23:53:00,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 23:53:00,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,398 INFO L138 Inliner]: procedures = 161, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2024-10-14 23:53:00,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 23:53:00,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 23:53:00,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 23:53:00,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 23:53:00,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,433 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-10-14 23:53:00,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 23:53:00,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 23:53:00,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 23:53:00,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 23:53:00,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (1/1) ... [2024-10-14 23:53:00,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:53:00,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:53:00,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 23:53:00,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 23:53:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 23:53:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 23:53:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 23:53:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 23:53:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 23:53:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 23:53:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 23:53:00,599 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 23:53:00,717 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 23:53:00,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 23:53:00,843 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 23:53:00,843 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 23:53:00,909 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 23:53:00,910 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 23:53:00,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:53:00 BoogieIcfgContainer [2024-10-14 23:53:00,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 23:53:00,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 23:53:00,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 23:53:00,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 23:53:00,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:59" (1/3) ... [2024-10-14 23:53:00,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4466250c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:53:00, skipping insertion in model container [2024-10-14 23:53:00,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:00" (2/3) ... [2024-10-14 23:53:00,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4466250c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:53:00, skipping insertion in model container [2024-10-14 23:53:00,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:53:00" (3/3) ... [2024-10-14 23:53:00,919 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2024-10-14 23:53:00,932 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 23:53:00,933 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-14 23:53:00,933 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 23:53:00,970 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 23:53:01,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 58 flow [2024-10-14 23:53:01,037 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-10-14 23:53:01,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:53:01,040 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. [2024-10-14 23:53:01,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 58 flow [2024-10-14 23:53:01,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 26 transitions, 55 flow [2024-10-14 23:53:01,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 23:53:01,058 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;@637aec09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 23:53:01,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-14 23:53:01,062 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 23:53:01,062 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-14 23:53:01,062 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:53:01,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:01,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-14 23:53:01,064 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)] === [2024-10-14 23:53:01,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:01,070 INFO L85 PathProgramCache]: Analyzing trace with hash 162888, now seen corresponding path program 1 times [2024-10-14 23:53:01,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:01,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174944894] [2024-10-14 23:53:01,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:01,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:01,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:01,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174944894] [2024-10-14 23:53:01,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174944894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:01,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:01,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:53:01,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239599583] [2024-10-14 23:53:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:01,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:53:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:53:01,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:53:01,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:01,368 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) [2024-10-14 23:53:01,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:01,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:01,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:01,469 INFO L124 PetriNetUnfolderBase]: 31/100 cut-off events. [2024-10-14 23:53:01,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:53:01,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 100 events. 31/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 338 event pairs, 30 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 164. Up to 74 conditions per place. [2024-10-14 23:53:01,472 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 13 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2024-10-14 23:53:01,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 87 flow [2024-10-14 23:53:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:53:01,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:53:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2024-10-14 23:53:01,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-10-14 23:53:01,484 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 4 states and 54 transitions. [2024-10-14 23:53:01,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 87 flow [2024-10-14 23:53:01,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:53:01,488 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 60 flow [2024-10-14 23:53:01,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2024-10-14 23:53:01,493 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2024-10-14 23:53:01,495 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 60 flow [2024-10-14 23:53:01,496 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) [2024-10-14 23:53:01,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:01,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-14 23:53:01,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 23:53:01,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:53:01,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:01,499 INFO L85 PathProgramCache]: Analyzing trace with hash 5049684, now seen corresponding path program 1 times [2024-10-14 23:53:01,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:01,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020505570] [2024-10-14 23:53:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:01,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:01,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:01,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:01,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020505570] [2024-10-14 23:53:01,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020505570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:01,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:01,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:53:01,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852093372] [2024-10-14 23:53:01,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:01,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:53:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:53:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:53:01,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:01,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 60 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) [2024-10-14 23:53:01,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:01,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:01,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:01,649 INFO L124 PetriNetUnfolderBase]: 31/103 cut-off events. [2024-10-14 23:53:01,649 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 23:53:01,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 103 events. 31/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 345 event pairs, 30 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 168. Up to 78 conditions per place. [2024-10-14 23:53:01,653 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 16 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2024-10-14 23:53:01,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 106 flow [2024-10-14 23:53:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:53:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:53:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2024-10-14 23:53:01,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-10-14 23:53:01,656 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 60 flow. Second operand 4 states and 57 transitions. [2024-10-14 23:53:01,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 106 flow [2024-10-14 23:53:01,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:53:01,660 INFO L231 Difference]: Finished difference. Result has 32 places, 27 transitions, 74 flow [2024-10-14 23:53:01,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2024-10-14 23:53:01,662 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2024-10-14 23:53:01,663 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 74 flow [2024-10-14 23:53:01,664 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) [2024-10-14 23:53:01,664 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:01,664 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-14 23:53:01,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 23:53:01,665 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)] === [2024-10-14 23:53:01,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:01,665 INFO L85 PathProgramCache]: Analyzing trace with hash 111444644, now seen corresponding path program 1 times [2024-10-14 23:53:01,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:01,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401141291] [2024-10-14 23:53:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:01,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:01,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:53:01,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:01,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401141291] [2024-10-14 23:53:01,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401141291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:01,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:01,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:53:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50002827] [2024-10-14 23:53:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:01,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 23:53:01,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:01,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 23:53:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 23:53:01,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:01,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 74 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) [2024-10-14 23:53:01,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:01,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:01,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:01,817 INFO L124 PetriNetUnfolderBase]: 31/102 cut-off events. [2024-10-14 23:53:01,818 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 23:53:01,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 102 events. 31/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 340 event pairs, 30 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 178. Up to 77 conditions per place. [2024-10-14 23:53:01,821 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 14 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-10-14 23:53:01,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 106 flow [2024-10-14 23:53:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 23:53:01,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 23:53:01,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-10-14 23:53:01,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5432098765432098 [2024-10-14 23:53:01,823 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 74 flow. Second operand 3 states and 44 transitions. [2024-10-14 23:53:01,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 106 flow [2024-10-14 23:53:01,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:53:01,825 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 76 flow [2024-10-14 23:53:01,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=30, 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=76, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2024-10-14 23:53:01,827 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2024-10-14 23:53:01,827 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 76 flow [2024-10-14 23:53:01,827 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) [2024-10-14 23:53:01,828 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:01,828 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:01,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 23:53:01,829 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)] === [2024-10-14 23:53:01,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash 77734548, now seen corresponding path program 1 times [2024-10-14 23:53:01,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:01,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624826700] [2024-10-14 23:53:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:01,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:53:01,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:01,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624826700] [2024-10-14 23:53:01,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624826700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:01,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:01,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:53:01,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523449097] [2024-10-14 23:53:01,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:01,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:53:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:53:01,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:53:01,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:01,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 76 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) [2024-10-14 23:53:01,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:01,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:01,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:02,076 INFO L124 PetriNetUnfolderBase]: 46/135 cut-off events. [2024-10-14 23:53:02,077 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 23:53:02,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 135 events. 46/135 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 488 event pairs, 14 based on Foata normal form. 6/127 useless extension candidates. Maximal degree in co-relation 245. Up to 49 conditions per place. [2024-10-14 23:53:02,079 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 6 changer transitions 6/42 dead transitions. [2024-10-14 23:53:02,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 42 transitions, 180 flow [2024-10-14 23:53:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:53:02,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:53:02,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2024-10-14 23:53:02,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-10-14 23:53:02,082 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 76 flow. Second operand 5 states and 81 transitions. [2024-10-14 23:53:02,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 42 transitions, 180 flow [2024-10-14 23:53:02,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 42 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:53:02,084 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 106 flow [2024-10-14 23:53:02,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2024-10-14 23:53:02,086 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2024-10-14 23:53:02,086 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 106 flow [2024-10-14 23:53:02,087 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) [2024-10-14 23:53:02,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:02,087 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:02,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 23:53:02,089 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:53:02,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:02,090 INFO L85 PathProgramCache]: Analyzing trace with hash 77998694, now seen corresponding path program 1 times [2024-10-14 23:53:02,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:02,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903872891] [2024-10-14 23:53:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:02,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:53:02,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:02,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903872891] [2024-10-14 23:53:02,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903872891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:02,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:02,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:53:02,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713623821] [2024-10-14 23:53:02,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:02,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:53:02,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:02,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:53:02,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:53:02,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:02,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 106 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) [2024-10-14 23:53:02,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:02,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:02,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:02,307 INFO L124 PetriNetUnfolderBase]: 43/138 cut-off events. [2024-10-14 23:53:02,309 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-14 23:53:02,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 138 events. 43/138 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 537 event pairs, 21 based on Foata normal form. 7/143 useless extension candidates. Maximal degree in co-relation 301. Up to 55 conditions per place. [2024-10-14 23:53:02,311 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 25 selfloop transitions, 7 changer transitions 6/45 dead transitions. [2024-10-14 23:53:02,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 230 flow [2024-10-14 23:53:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:53:02,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:53:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2024-10-14 23:53:02,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-10-14 23:53:02,315 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 106 flow. Second operand 5 states and 81 transitions. [2024-10-14 23:53:02,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 230 flow [2024-10-14 23:53:02,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 23:53:02,321 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 152 flow [2024-10-14 23:53:02,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2024-10-14 23:53:02,322 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2024-10-14 23:53:02,323 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 152 flow [2024-10-14 23:53:02,324 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) [2024-10-14 23:53:02,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:02,324 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:02,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 23:53:02,325 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:53:02,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:02,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1885196146, now seen corresponding path program 1 times [2024-10-14 23:53:02,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:02,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763799016] [2024-10-14 23:53:02,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:02,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:53:02,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:02,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763799016] [2024-10-14 23:53:02,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763799016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:02,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:02,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:53:02,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654703782] [2024-10-14 23:53:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:02,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:53:02,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:02,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:53:02,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:53:02,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:02,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 152 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) [2024-10-14 23:53:02,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:02,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:02,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:02,498 INFO L124 PetriNetUnfolderBase]: 24/98 cut-off events. [2024-10-14 23:53:02,498 INFO L125 PetriNetUnfolderBase]: For 115/117 co-relation queries the response was YES. [2024-10-14 23:53:02,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 98 events. 24/98 cut-off events. For 115/117 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 334 event pairs, 10 based on Foata normal form. 8/104 useless extension candidates. Maximal degree in co-relation 242. Up to 43 conditions per place. [2024-10-14 23:53:02,502 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 6 changer transitions 1/38 dead transitions. [2024-10-14 23:53:02,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 228 flow [2024-10-14 23:53:02,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:53:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:53:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2024-10-14 23:53:02,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-14 23:53:02,506 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 152 flow. Second operand 5 states and 75 transitions. [2024-10-14 23:53:02,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 228 flow [2024-10-14 23:53:02,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:53:02,512 INFO L231 Difference]: Finished difference. Result has 49 places, 30 transitions, 147 flow [2024-10-14 23:53:02,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=49, PETRI_TRANSITIONS=30} [2024-10-14 23:53:02,513 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-10-14 23:53:02,514 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 147 flow [2024-10-14 23:53:02,514 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) [2024-10-14 23:53:02,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:02,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:02,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 23:53:02,514 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:53:02,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:02,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1877007605, now seen corresponding path program 1 times [2024-10-14 23:53:02,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425884215] [2024-10-14 23:53:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:53:02,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:02,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425884215] [2024-10-14 23:53:02,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425884215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:02,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:53:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514500491] [2024-10-14 23:53:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:02,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:53:02,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:02,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:53:02,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:53:02,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:02,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 147 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) [2024-10-14 23:53:02,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:02,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:02,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:02,657 INFO L124 PetriNetUnfolderBase]: 24/92 cut-off events. [2024-10-14 23:53:02,658 INFO L125 PetriNetUnfolderBase]: For 143/145 co-relation queries the response was YES. [2024-10-14 23:53:02,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 92 events. 24/92 cut-off events. For 143/145 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 291 event pairs, 9 based on Foata normal form. 9/99 useless extension candidates. Maximal degree in co-relation 235. Up to 40 conditions per place. [2024-10-14 23:53:02,660 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 5 changer transitions 2/37 dead transitions. [2024-10-14 23:53:02,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 37 transitions, 227 flow [2024-10-14 23:53:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:53:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:53:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2024-10-14 23:53:02,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.562962962962963 [2024-10-14 23:53:02,662 INFO L175 Difference]: Start difference. First operand has 49 places, 30 transitions, 147 flow. Second operand 5 states and 76 transitions. [2024-10-14 23:53:02,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 37 transitions, 227 flow [2024-10-14 23:53:02,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 37 transitions, 205 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-14 23:53:02,669 INFO L231 Difference]: Finished difference. Result has 48 places, 28 transitions, 125 flow [2024-10-14 23:53:02,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=125, PETRI_PLACES=48, PETRI_TRANSITIONS=28} [2024-10-14 23:53:02,670 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 19 predicate places. [2024-10-14 23:53:02,670 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 28 transitions, 125 flow [2024-10-14 23:53:02,670 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) [2024-10-14 23:53:02,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:02,670 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:02,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 23:53:02,670 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)] === [2024-10-14 23:53:02,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:02,671 INFO L85 PathProgramCache]: Analyzing trace with hash 311769839, now seen corresponding path program 1 times [2024-10-14 23:53:02,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:02,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462709746] [2024-10-14 23:53:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:02,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 23:53:02,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462709746] [2024-10-14 23:53:02,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462709746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:02,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:02,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:53:02,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611039395] [2024-10-14 23:53:02,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:02,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 23:53:02,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:02,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 23:53:02,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 23:53:02,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 27 [2024-10-14 23:53:02,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 28 transitions, 125 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) [2024-10-14 23:53:02,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:02,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 27 [2024-10-14 23:53:02,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:02,810 INFO L124 PetriNetUnfolderBase]: 10/58 cut-off events. [2024-10-14 23:53:02,810 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-10-14 23:53:02,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 58 events. 10/58 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 130 event pairs, 2 based on Foata normal form. 6/62 useless extension candidates. Maximal degree in co-relation 138. Up to 24 conditions per place. [2024-10-14 23:53:02,811 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 19 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2024-10-14 23:53:02,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 31 transitions, 177 flow [2024-10-14 23:53:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 23:53:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 23:53:02,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-10-14 23:53:02,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-14 23:53:02,813 INFO L175 Difference]: Start difference. First operand has 48 places, 28 transitions, 125 flow. Second operand 3 states and 54 transitions. [2024-10-14 23:53:02,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 31 transitions, 177 flow [2024-10-14 23:53:02,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 31 transitions, 164 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-14 23:53:02,814 INFO L231 Difference]: Finished difference. Result has 46 places, 28 transitions, 120 flow [2024-10-14 23:53:02,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2024-10-14 23:53:02,815 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2024-10-14 23:53:02,815 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 28 transitions, 120 flow [2024-10-14 23:53:02,817 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) [2024-10-14 23:53:02,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:02,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:02,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 23:53:02,818 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)] === [2024-10-14 23:53:02,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:02,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1555824312, now seen corresponding path program 1 times [2024-10-14 23:53:02,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:02,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644326874] [2024-10-14 23:53:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:02,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:02,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:02,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644326874] [2024-10-14 23:53:02,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644326874] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:53:02,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862971807] [2024-10-14 23:53:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:02,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:53:02,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:53:02,899 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) [2024-10-14 23:53:02,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 23:53:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:02,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 23:53:02,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:53:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:03,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 23:53:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:03,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862971807] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 23:53:03,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 23:53:03,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-14 23:53:03,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232437652] [2024-10-14 23:53:03,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 23:53:03,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 23:53:03,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:03,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 23:53:03,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 23:53:03,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:03,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 28 transitions, 120 flow. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:53:03,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:03,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:03,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:03,135 INFO L124 PetriNetUnfolderBase]: 10/62 cut-off events. [2024-10-14 23:53:03,135 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-14 23:53:03,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 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 125 event pairs, 9 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 132. Up to 37 conditions per place. [2024-10-14 23:53:03,136 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2024-10-14 23:53:03,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 31 transitions, 178 flow [2024-10-14 23:53:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 23:53:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 23:53:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2024-10-14 23:53:03,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.455026455026455 [2024-10-14 23:53:03,137 INFO L175 Difference]: Start difference. First operand has 46 places, 28 transitions, 120 flow. Second operand 7 states and 86 transitions. [2024-10-14 23:53:03,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 31 transitions, 178 flow [2024-10-14 23:53:03,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 31 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:53:03,139 INFO L231 Difference]: Finished difference. Result has 53 places, 31 transitions, 153 flow [2024-10-14 23:53:03,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=153, PETRI_PLACES=53, PETRI_TRANSITIONS=31} [2024-10-14 23:53:03,140 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2024-10-14 23:53:03,140 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 31 transitions, 153 flow [2024-10-14 23:53:03,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:53:03,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:03,140 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:03,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 23:53:03,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:53:03,345 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:53:03,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:03,345 INFO L85 PathProgramCache]: Analyzing trace with hash 958670356, now seen corresponding path program 2 times [2024-10-14 23:53:03,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:03,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189244794] [2024-10-14 23:53:03,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:03,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:03,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189244794] [2024-10-14 23:53:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189244794] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:53:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41393016] [2024-10-14 23:53:03,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 23:53:03,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:53:03,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:53:03,454 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) [2024-10-14 23:53:03,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 23:53:03,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 23:53:03,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 23:53:03,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 23:53:03,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:53:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 23:53:03,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 23:53:03,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41393016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:03,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 23:53:03,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-10-14 23:53:03,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483481366] [2024-10-14 23:53:03,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:03,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:53:03,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:03,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:53:03,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-14 23:53:03,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-14 23:53:03,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 31 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 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) [2024-10-14 23:53:03,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:03,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-14 23:53:03,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:03,682 INFO L124 PetriNetUnfolderBase]: 13/61 cut-off events. [2024-10-14 23:53:03,682 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-14 23:53:03,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 61 events. 13/61 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 6 based on Foata normal form. 4/64 useless extension candidates. Maximal degree in co-relation 133. Up to 33 conditions per place. [2024-10-14 23:53:03,683 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2024-10-14 23:53:03,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 32 transitions, 209 flow [2024-10-14 23:53:03,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:53:03,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:53:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2024-10-14 23:53:03,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-10-14 23:53:03,684 INFO L175 Difference]: Start difference. First operand has 53 places, 31 transitions, 153 flow. Second operand 5 states and 54 transitions. [2024-10-14 23:53:03,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 32 transitions, 209 flow [2024-10-14 23:53:03,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 32 transitions, 189 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-14 23:53:03,686 INFO L231 Difference]: Finished difference. Result has 48 places, 29 transitions, 139 flow [2024-10-14 23:53:03,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=48, PETRI_TRANSITIONS=29} [2024-10-14 23:53:03,687 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 19 predicate places. [2024-10-14 23:53:03,687 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 29 transitions, 139 flow [2024-10-14 23:53:03,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 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) [2024-10-14 23:53:03,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:03,687 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:03,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 23:53:03,888 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,SelfDestructingSolverStorable9 [2024-10-14 23:53:03,889 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:53:03,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:03,889 INFO L85 PathProgramCache]: Analyzing trace with hash -345989859, now seen corresponding path program 1 times [2024-10-14 23:53:03,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:03,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226385391] [2024-10-14 23:53:03,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:03,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:03,971 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 23:53:03,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:03,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226385391] [2024-10-14 23:53:03,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226385391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:03,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:03,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:53:03,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914690353] [2024-10-14 23:53:03,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:03,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:53:03,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:03,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:53:03,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:53:03,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-10-14 23:53:03,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 29 transitions, 139 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) [2024-10-14 23:53:03,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:03,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-10-14 23:53:03,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:04,085 INFO L124 PetriNetUnfolderBase]: 11/57 cut-off events. [2024-10-14 23:53:04,085 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-10-14 23:53:04,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 57 events. 11/57 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 5 based on Foata normal form. 2/58 useless extension candidates. Maximal degree in co-relation 120. Up to 19 conditions per place. [2024-10-14 23:53:04,087 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 18 selfloop transitions, 3 changer transitions 8/33 dead transitions. [2024-10-14 23:53:04,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 33 transitions, 205 flow [2024-10-14 23:53:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 23:53:04,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 23:53:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 74 transitions. [2024-10-14 23:53:04,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3915343915343915 [2024-10-14 23:53:04,088 INFO L175 Difference]: Start difference. First operand has 48 places, 29 transitions, 139 flow. Second operand 7 states and 74 transitions. [2024-10-14 23:53:04,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 33 transitions, 205 flow [2024-10-14 23:53:04,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 33 transitions, 189 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 23:53:04,089 INFO L231 Difference]: Finished difference. Result has 47 places, 23 transitions, 105 flow [2024-10-14 23:53:04,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=105, PETRI_PLACES=47, PETRI_TRANSITIONS=23} [2024-10-14 23:53:04,090 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places. [2024-10-14 23:53:04,090 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 23 transitions, 105 flow [2024-10-14 23:53:04,091 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) [2024-10-14 23:53:04,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:04,091 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:04,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 23:53:04,091 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-14 23:53:04,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:04,091 INFO L85 PathProgramCache]: Analyzing trace with hash 840794320, now seen corresponding path program 1 times [2024-10-14 23:53:04,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:04,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786085374] [2024-10-14 23:53:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:04,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:04,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786085374] [2024-10-14 23:53:04,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786085374] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 23:53:04,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593892621] [2024-10-14 23:53:04,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:04,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:53:04,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:53:04,197 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) [2024-10-14 23:53:04,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 23:53:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:04,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 23:53:04,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 23:53:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:04,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 23:53:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:53:04,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593892621] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 23:53:04,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 23:53:04,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-10-14 23:53:04,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028286011] [2024-10-14 23:53:04,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 23:53:04,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 23:53:04,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:04,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 23:53:04,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-10-14 23:53:04,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-14 23:53:04,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 23 transitions, 105 flow. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:53:04,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:04,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-14 23:53:04,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:04,579 INFO L124 PetriNetUnfolderBase]: 8/55 cut-off events. [2024-10-14 23:53:04,580 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-10-14 23:53:04,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 55 events. 8/55 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 7 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 98. Up to 27 conditions per place. [2024-10-14 23:53:04,580 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 11 selfloop transitions, 15 changer transitions 0/31 dead transitions. [2024-10-14 23:53:04,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 31 transitions, 205 flow [2024-10-14 23:53:04,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 23:53:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 23:53:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 165 transitions. [2024-10-14 23:53:04,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2024-10-14 23:53:04,583 INFO L175 Difference]: Start difference. First operand has 47 places, 23 transitions, 105 flow. Second operand 15 states and 165 transitions. [2024-10-14 23:53:04,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 31 transitions, 205 flow [2024-10-14 23:53:04,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 31 transitions, 187 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-14 23:53:04,585 INFO L231 Difference]: Finished difference. Result has 50 places, 31 transitions, 184 flow [2024-10-14 23:53:04,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=184, PETRI_PLACES=50, PETRI_TRANSITIONS=31} [2024-10-14 23:53:04,586 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 21 predicate places. [2024-10-14 23:53:04,586 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 31 transitions, 184 flow [2024-10-14 23:53:04,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:53:04,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:53:04,588 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:04,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 23:53:04,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 23:53:04,789 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)] === [2024-10-14 23:53:04,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:53:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash 272762064, now seen corresponding path program 2 times [2024-10-14 23:53:04,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:53:04,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590079893] [2024-10-14 23:53:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:53:04,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:53:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:53:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-14 23:53:04,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:53:04,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590079893] [2024-10-14 23:53:04,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590079893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:53:04,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:53:04,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:53:04,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810976493] [2024-10-14 23:53:04,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:53:04,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:53:04,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:53:04,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:53:04,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:53:04,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-10-14 23:53:04,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 31 transitions, 184 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) [2024-10-14 23:53:04,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:53:04,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-10-14 23:53:04,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:53:04,971 INFO L124 PetriNetUnfolderBase]: 8/53 cut-off events. [2024-10-14 23:53:04,971 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-10-14 23:53:04,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 53 events. 8/53 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 2 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 103. Up to 23 conditions per place. [2024-10-14 23:53:04,972 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-10-14 23:53:04,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 34 transitions, 250 flow [2024-10-14 23:53:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:53:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:53:04,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2024-10-14 23:53:04,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37037037037037035 [2024-10-14 23:53:04,973 INFO L175 Difference]: Start difference. First operand has 50 places, 31 transitions, 184 flow. Second operand 6 states and 60 transitions. [2024-10-14 23:53:04,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 34 transitions, 250 flow [2024-10-14 23:53:04,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 34 transitions, 232 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-14 23:53:04,975 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-10-14 23:53:04,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-10-14 23:53:04,975 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-10-14 23:53:04,976 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-10-14 23:53:04,976 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) [2024-10-14 23:53:04,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-10-14 23:53:04,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-10-14 23:53:04,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-10-14 23:53:04,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-10-14 23:53:04,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-14 23:53:04,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-10-14 23:53:04,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-10-14 23:53:04,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-10-14 23:53:04,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-10-14 23:53:04,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 23:53:04,980 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:53:04,986 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 23:53:04,986 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 23:53:04,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:53:04 BasicIcfg [2024-10-14 23:53:04,992 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 23:53:04,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 23:53:04,993 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 23:53:04,993 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 23:53:04,994 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:53:00" (3/4) ... [2024-10-14 23:53:04,996 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 23:53:05,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-14 23:53:05,005 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-10-14 23:53:05,006 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-14 23:53:05,006 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 23:53:05,088 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 23:53:05,090 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 23:53:05,090 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 23:53:05,090 INFO L158 Benchmark]: Toolchain (without parser) took 5235.64ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 81.3MB in the beginning and 117.6MB in the end (delta: -36.4MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2024-10-14 23:53:05,091 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 138.4MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 23:53:05,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.60ms. Allocated memory is still 138.4MB. Free memory was 81.3MB in the beginning and 60.9MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 23:53:05,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.34ms. Allocated memory is still 138.4MB. Free memory was 60.6MB in the beginning and 58.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:53:05,091 INFO L158 Benchmark]: Boogie Preprocessor took 72.09ms. Allocated memory is still 138.4MB. Free memory was 58.9MB in the beginning and 109.9MB in the end (delta: -50.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-10-14 23:53:05,092 INFO L158 Benchmark]: RCFGBuilder took 438.95ms. Allocated memory is still 138.4MB. Free memory was 109.9MB in the beginning and 93.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-14 23:53:05,092 INFO L158 Benchmark]: TraceAbstraction took 4080.15ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 92.6MB in the beginning and 121.8MB in the end (delta: -29.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-10-14 23:53:05,092 INFO L158 Benchmark]: Witness Printer took 96.77ms. Allocated memory is still 207.6MB. Free memory was 121.8MB in the beginning and 117.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 23:53:05,094 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 138.4MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.60ms. Allocated memory is still 138.4MB. Free memory was 81.3MB in the beginning and 60.9MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.34ms. Allocated memory is still 138.4MB. Free memory was 60.6MB in the beginning and 58.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.09ms. Allocated memory is still 138.4MB. Free memory was 58.9MB in the beginning and 109.9MB in the end (delta: -50.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 438.95ms. Allocated memory is still 138.4MB. Free memory was 109.9MB in the beginning and 93.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4080.15ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 92.6MB in the beginning and 121.8MB in the end (delta: -29.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 96.77ms. Allocated memory is still 207.6MB. Free memory was 121.8MB in the beginning and 117.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 826 IncrementalHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 36 mSDtfsCounter, 826 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=12, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 251 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 5 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 102/153 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! [2024-10-14 23:53:05,125 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