./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-match-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-match-symm.wvr.c -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 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:51:23,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:51:23,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:51:23,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:51:23,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:51:23,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:51:23,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:51:23,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:51:23,289 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:51:23,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:51:23,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:51:23,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:51:23,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:51:23,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:51:23,293 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:51:23,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:51:23,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:51:23,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:51:23,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:51:23,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:51:23,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:51:23,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:51:23,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:51:23,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:51:23,301 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:51:23,301 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:51:23,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:51:23,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:51:23,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:51:23,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:51:23,302 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:51:23,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:51:23,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:51:23,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:51:23,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:51:23,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:51:23,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:51:23,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:51:23,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:51:23,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:51:23,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:51:23,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:51:23,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:51:23,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:51:23,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f [2024-11-17 07:51:23,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:51:23,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:51:23,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:51:23,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:51:23,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:51:23,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-11-17 07:51:24,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:51:24,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:51:24,832 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-11-17 07:51:24,838 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33573ce58/95e406ab00494ee1a037d3d56a2b8b03/FLAGfa0be4a82 [2024-11-17 07:51:25,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33573ce58/95e406ab00494ee1a037d3d56a2b8b03 [2024-11-17 07:51:25,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:51:25,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:51:25,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:51:25,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:51:25,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:51:25,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bed965b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25, skipping insertion in model container [2024-11-17 07:51:25,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:51:25,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:51:25,429 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:51:25,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:51:25,462 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:51:25,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25 WrapperNode [2024-11-17 07:51:25,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:51:25,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:51:25,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:51:25,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:51:25,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,490 INFO L138 Inliner]: procedures = 21, calls = 18, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 201 [2024-11-17 07:51:25,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:51:25,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:51:25,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:51:25,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:51:25,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,509 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 07:51:25,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,513 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:51:25,517 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:51:25,518 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:51:25,518 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:51:25,518 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (1/1) ... [2024-11-17 07:51:25,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:51:25,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:51:25,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:51:25,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:51:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:51:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:51:25,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:51:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:51:25,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:51:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:51:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:51:25,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:51:25,604 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:51:25,693 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:51:25,695 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:51:25,969 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:51:25,969 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:51:26,134 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:51:26,136 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:51:26,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:26 BoogieIcfgContainer [2024-11-17 07:51:26,136 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:51:26,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:51:26,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:51:26,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:51:26,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:51:25" (1/3) ... [2024-11-17 07:51:26,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242ee55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:51:26, skipping insertion in model container [2024-11-17 07:51:26,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:25" (2/3) ... [2024-11-17 07:51:26,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242ee55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:51:26, skipping insertion in model container [2024-11-17 07:51:26,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:26" (3/3) ... [2024-11-17 07:51:26,144 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2024-11-17 07:51:26,156 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:51:26,157 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-17 07:51:26,157 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:51:26,215 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:51:26,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 182 flow [2024-11-17 07:51:26,277 INFO L124 PetriNetUnfolderBase]: 8/82 cut-off events. [2024-11-17 07:51:26,277 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:51:26,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 82 events. 8/82 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 276 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2024-11-17 07:51:26,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 84 transitions, 182 flow [2024-11-17 07:51:26,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 169 flow [2024-11-17 07:51:26,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:51:26,297 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;@3ce638d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:51:26,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-17 07:51:26,300 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:51:26,300 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-17 07:51:26,300 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:51:26,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:26,301 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:51:26,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:26,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash 589560958, now seen corresponding path program 1 times [2024-11-17 07:51:26,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:26,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549793390] [2024-11-17 07:51:26,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:26,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:26,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:26,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549793390] [2024-11-17 07:51:26,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549793390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:26,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:26,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:26,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659310201] [2024-11-17 07:51:26,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:26,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:26,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:26,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:26,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-17 07:51:26,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:26,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:26,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-17 07:51:26,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:26,986 INFO L124 PetriNetUnfolderBase]: 1141/2594 cut-off events. [2024-11-17 07:51:26,986 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-17 07:51:26,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4413 conditions, 2594 events. 1141/2594 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 19312 event pairs, 271 based on Foata normal form. 104/2253 useless extension candidates. Maximal degree in co-relation 4346. Up to 872 conditions per place. [2024-11-17 07:51:27,005 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 64 selfloop transitions, 10 changer transitions 0/114 dead transitions. [2024-11-17 07:51:27,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 114 transitions, 391 flow [2024-11-17 07:51:27,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:27,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-11-17 07:51:27,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2024-11-17 07:51:27,018 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 169 flow. Second operand 4 states and 248 transitions. [2024-11-17 07:51:27,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 114 transitions, 391 flow [2024-11-17 07:51:27,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 114 transitions, 384 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:27,026 INFO L231 Difference]: Finished difference. Result has 80 places, 84 transitions, 230 flow [2024-11-17 07:51:27,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=80, PETRI_TRANSITIONS=84} [2024-11-17 07:51:27,031 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 1 predicate places. [2024-11-17 07:51:27,031 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 84 transitions, 230 flow [2024-11-17 07:51:27,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:27,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:27,031 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:51:27,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:51:27,032 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:27,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:27,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1096521088, now seen corresponding path program 1 times [2024-11-17 07:51:27,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:27,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477253573] [2024-11-17 07:51:27,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:27,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:27,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:27,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:27,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477253573] [2024-11-17 07:51:27,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477253573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:27,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:27,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:27,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785029953] [2024-11-17 07:51:27,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:27,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:27,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:27,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:27,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-17 07:51:27,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 84 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:27,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:27,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-17 07:51:27,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:27,351 INFO L124 PetriNetUnfolderBase]: 828/2285 cut-off events. [2024-11-17 07:51:27,352 INFO L125 PetriNetUnfolderBase]: For 562/591 co-relation queries the response was YES. [2024-11-17 07:51:27,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4098 conditions, 2285 events. 828/2285 cut-off events. For 562/591 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18368 event pairs, 326 based on Foata normal form. 29/1905 useless extension candidates. Maximal degree in co-relation 3186. Up to 661 conditions per place. [2024-11-17 07:51:27,361 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 44 selfloop transitions, 7 changer transitions 0/99 dead transitions. [2024-11-17 07:51:27,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 99 transitions, 366 flow [2024-11-17 07:51:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:27,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-17 07:51:27,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-17 07:51:27,366 INFO L175 Difference]: Start difference. First operand has 80 places, 84 transitions, 230 flow. Second operand 4 states and 240 transitions. [2024-11-17 07:51:27,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 99 transitions, 366 flow [2024-11-17 07:51:27,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 99 transitions, 366 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:51:27,371 INFO L231 Difference]: Finished difference. Result has 83 places, 84 transitions, 254 flow [2024-11-17 07:51:27,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2024-11-17 07:51:27,372 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-17 07:51:27,372 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 254 flow [2024-11-17 07:51:27,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:27,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:27,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:27,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:51:27,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:27,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:27,374 INFO L85 PathProgramCache]: Analyzing trace with hash -373688273, now seen corresponding path program 1 times [2024-11-17 07:51:27,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:27,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91601667] [2024-11-17 07:51:27,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:27,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:27,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:27,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91601667] [2024-11-17 07:51:27,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91601667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:27,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:27,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:27,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900709912] [2024-11-17 07:51:27,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:27,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:27,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:27,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:27,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:27,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-17 07:51:27,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 84 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:27,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:27,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-17 07:51:27,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:27,793 INFO L124 PetriNetUnfolderBase]: 1639/3646 cut-off events. [2024-11-17 07:51:27,794 INFO L125 PetriNetUnfolderBase]: For 2370/2560 co-relation queries the response was YES. [2024-11-17 07:51:27,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7655 conditions, 3646 events. 1639/3646 cut-off events. For 2370/2560 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 29039 event pairs, 415 based on Foata normal form. 236/3288 useless extension candidates. Maximal degree in co-relation 2893. Up to 1186 conditions per place. [2024-11-17 07:51:27,814 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 77 selfloop transitions, 10 changer transitions 0/126 dead transitions. [2024-11-17 07:51:27,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 126 transitions, 620 flow [2024-11-17 07:51:27,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:27,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-11-17 07:51:27,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2024-11-17 07:51:27,816 INFO L175 Difference]: Start difference. First operand has 83 places, 84 transitions, 254 flow. Second operand 4 states and 246 transitions. [2024-11-17 07:51:27,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 126 transitions, 620 flow [2024-11-17 07:51:27,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 126 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:27,827 INFO L231 Difference]: Finished difference. Result has 85 places, 88 transitions, 312 flow [2024-11-17 07:51:27,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=85, PETRI_TRANSITIONS=88} [2024-11-17 07:51:27,828 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2024-11-17 07:51:27,829 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 88 transitions, 312 flow [2024-11-17 07:51:27,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:27,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:27,829 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:27,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:51:27,830 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:27,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash -367614814, now seen corresponding path program 1 times [2024-11-17 07:51:27,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:27,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021791538] [2024-11-17 07:51:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:27,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:27,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021791538] [2024-11-17 07:51:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021791538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:27,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:27,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:27,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122009332] [2024-11-17 07:51:27,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:27,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:27,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:27,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-17 07:51:27,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:27,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:27,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-17 07:51:27,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:28,148 INFO L124 PetriNetUnfolderBase]: 1311/3469 cut-off events. [2024-11-17 07:51:28,149 INFO L125 PetriNetUnfolderBase]: For 2548/2657 co-relation queries the response was YES. [2024-11-17 07:51:28,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7524 conditions, 3469 events. 1311/3469 cut-off events. For 2548/2657 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 30016 event pairs, 590 based on Foata normal form. 112/3116 useless extension candidates. Maximal degree in co-relation 6493. Up to 1043 conditions per place. [2024-11-17 07:51:28,166 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 54 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2024-11-17 07:51:28,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 105 transitions, 502 flow [2024-11-17 07:51:28,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:28,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-11-17 07:51:28,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-11-17 07:51:28,168 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 312 flow. Second operand 4 states and 231 transitions. [2024-11-17 07:51:28,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 105 transitions, 502 flow [2024-11-17 07:51:28,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 105 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:51:28,175 INFO L231 Difference]: Finished difference. Result has 87 places, 87 transitions, 322 flow [2024-11-17 07:51:28,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=87, PETRI_TRANSITIONS=87} [2024-11-17 07:51:28,176 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2024-11-17 07:51:28,176 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 87 transitions, 322 flow [2024-11-17 07:51:28,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:28,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:28,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:28,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:51:28,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:28,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:28,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1488842242, now seen corresponding path program 1 times [2024-11-17 07:51:28,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:28,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607424033] [2024-11-17 07:51:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:28,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:28,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607424033] [2024-11-17 07:51:28,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607424033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:28,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:28,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376671359] [2024-11-17 07:51:28,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:28,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:28,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:28,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-17 07:51:28,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:28,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:28,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-17 07:51:28,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:28,596 INFO L124 PetriNetUnfolderBase]: 1942/3873 cut-off events. [2024-11-17 07:51:28,597 INFO L125 PetriNetUnfolderBase]: For 2844/3060 co-relation queries the response was YES. [2024-11-17 07:51:28,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9483 conditions, 3873 events. 1942/3873 cut-off events. For 2844/3060 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 28537 event pairs, 502 based on Foata normal form. 114/3703 useless extension candidates. Maximal degree in co-relation 5205. Up to 1574 conditions per place. [2024-11-17 07:51:28,613 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 72 selfloop transitions, 12 changer transitions 0/124 dead transitions. [2024-11-17 07:51:28,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 124 transitions, 636 flow [2024-11-17 07:51:28,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:28,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 291 transitions. [2024-11-17 07:51:28,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6928571428571428 [2024-11-17 07:51:28,615 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 322 flow. Second operand 5 states and 291 transitions. [2024-11-17 07:51:28,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 124 transitions, 636 flow [2024-11-17 07:51:28,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 124 transitions, 622 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:28,625 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 354 flow [2024-11-17 07:51:28,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2024-11-17 07:51:28,626 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2024-11-17 07:51:28,627 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 354 flow [2024-11-17 07:51:28,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:28,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:28,628 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:28,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:51:28,628 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:28,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:28,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1488843235, now seen corresponding path program 1 times [2024-11-17 07:51:28,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:28,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097214730] [2024-11-17 07:51:28,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:28,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:28,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:28,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:28,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097214730] [2024-11-17 07:51:28,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097214730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:28,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:28,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:28,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84967434] [2024-11-17 07:51:28,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:28,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:28,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:28,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:28,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:28,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-17 07:51:28,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:28,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:28,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-17 07:51:28,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:28,961 INFO L124 PetriNetUnfolderBase]: 1466/3451 cut-off events. [2024-11-17 07:51:28,961 INFO L125 PetriNetUnfolderBase]: For 3954/4094 co-relation queries the response was YES. [2024-11-17 07:51:28,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8581 conditions, 3451 events. 1466/3451 cut-off events. For 3954/4094 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 27773 event pairs, 468 based on Foata normal form. 144/3301 useless extension candidates. Maximal degree in co-relation 5168. Up to 938 conditions per place. [2024-11-17 07:51:28,976 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 74 selfloop transitions, 9 changer transitions 0/123 dead transitions. [2024-11-17 07:51:28,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 123 transitions, 656 flow [2024-11-17 07:51:28,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-17 07:51:28,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-17 07:51:28,978 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 354 flow. Second operand 4 states and 240 transitions. [2024-11-17 07:51:28,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 123 transitions, 656 flow [2024-11-17 07:51:28,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 123 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:28,987 INFO L231 Difference]: Finished difference. Result has 90 places, 85 transitions, 350 flow [2024-11-17 07:51:28,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=90, PETRI_TRANSITIONS=85} [2024-11-17 07:51:28,988 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-11-17 07:51:28,988 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 85 transitions, 350 flow [2024-11-17 07:51:28,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:28,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:28,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:28,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:51:28,988 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:28,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1300566036, now seen corresponding path program 1 times [2024-11-17 07:51:28,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:28,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235410762] [2024-11-17 07:51:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:28,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:29,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:29,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235410762] [2024-11-17 07:51:29,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235410762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:29,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:29,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464259146] [2024-11-17 07:51:29,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:29,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:29,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:29,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:29,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:29,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-17 07:51:29,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 85 transitions, 350 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:29,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:29,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-17 07:51:29,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:29,315 INFO L124 PetriNetUnfolderBase]: 1306/3383 cut-off events. [2024-11-17 07:51:29,315 INFO L125 PetriNetUnfolderBase]: For 4879/5021 co-relation queries the response was YES. [2024-11-17 07:51:29,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8194 conditions, 3383 events. 1306/3383 cut-off events. For 4879/5021 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 28858 event pairs, 447 based on Foata normal form. 85/3058 useless extension candidates. Maximal degree in co-relation 3028. Up to 981 conditions per place. [2024-11-17 07:51:29,330 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 53 selfloop transitions, 7 changer transitions 0/104 dead transitions. [2024-11-17 07:51:29,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 104 transitions, 595 flow [2024-11-17 07:51:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2024-11-17 07:51:29,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2024-11-17 07:51:29,331 INFO L175 Difference]: Start difference. First operand has 90 places, 85 transitions, 350 flow. Second operand 4 states and 239 transitions. [2024-11-17 07:51:29,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 104 transitions, 595 flow [2024-11-17 07:51:29,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 104 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:51:29,339 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 367 flow [2024-11-17 07:51:29,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=367, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-11-17 07:51:29,340 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 13 predicate places. [2024-11-17 07:51:29,340 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 367 flow [2024-11-17 07:51:29,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:29,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:29,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:29,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:51:29,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:29,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:29,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1090530171, now seen corresponding path program 1 times [2024-11-17 07:51:29,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:29,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974417670] [2024-11-17 07:51:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:29,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:29,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974417670] [2024-11-17 07:51:29,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974417670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:29,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:29,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:29,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597032270] [2024-11-17 07:51:29,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:29,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:29,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:29,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:29,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-17 07:51:29,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:29,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:29,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-17 07:51:29,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:29,859 INFO L124 PetriNetUnfolderBase]: 2074/4129 cut-off events. [2024-11-17 07:51:29,859 INFO L125 PetriNetUnfolderBase]: For 6217/6457 co-relation queries the response was YES. [2024-11-17 07:51:29,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11230 conditions, 4129 events. 2074/4129 cut-off events. For 6217/6457 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 31234 event pairs, 636 based on Foata normal form. 252/3989 useless extension candidates. Maximal degree in co-relation 4659. Up to 1331 conditions per place. [2024-11-17 07:51:29,874 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 133 selfloop transitions, 13 changer transitions 0/182 dead transitions. [2024-11-17 07:51:29,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 182 transitions, 1130 flow [2024-11-17 07:51:29,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:51:29,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:51:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 418 transitions. [2024-11-17 07:51:29,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6220238095238095 [2024-11-17 07:51:29,876 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 367 flow. Second operand 8 states and 418 transitions. [2024-11-17 07:51:29,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 182 transitions, 1130 flow [2024-11-17 07:51:29,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 182 transitions, 1097 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:29,885 INFO L231 Difference]: Finished difference. Result has 100 places, 87 transitions, 416 flow [2024-11-17 07:51:29,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=416, PETRI_PLACES=100, PETRI_TRANSITIONS=87} [2024-11-17 07:51:29,886 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-17 07:51:29,886 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 87 transitions, 416 flow [2024-11-17 07:51:29,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:29,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:29,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:29,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:51:29,887 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:29,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:29,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1662811315, now seen corresponding path program 1 times [2024-11-17 07:51:29,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:29,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317436088] [2024-11-17 07:51:29,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:29,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:29,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317436088] [2024-11-17 07:51:29,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317436088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:29,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:29,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:29,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827055426] [2024-11-17 07:51:29,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:29,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:29,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:29,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:29,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-17 07:51:29,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 87 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:29,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:29,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-17 07:51:29,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:30,160 INFO L124 PetriNetUnfolderBase]: 1376/3302 cut-off events. [2024-11-17 07:51:30,161 INFO L125 PetriNetUnfolderBase]: For 9061/9366 co-relation queries the response was YES. [2024-11-17 07:51:30,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9287 conditions, 3302 events. 1376/3302 cut-off events. For 9061/9366 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 27193 event pairs, 548 based on Foata normal form. 249/3118 useless extension candidates. Maximal degree in co-relation 8329. Up to 1169 conditions per place. [2024-11-17 07:51:30,174 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 59 selfloop transitions, 7 changer transitions 0/106 dead transitions. [2024-11-17 07:51:30,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 106 transitions, 694 flow [2024-11-17 07:51:30,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:30,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:30,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 230 transitions. [2024-11-17 07:51:30,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2024-11-17 07:51:30,175 INFO L175 Difference]: Start difference. First operand has 100 places, 87 transitions, 416 flow. Second operand 4 states and 230 transitions. [2024-11-17 07:51:30,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 106 transitions, 694 flow [2024-11-17 07:51:30,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 106 transitions, 675 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:30,186 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 415 flow [2024-11-17 07:51:30,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=415, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2024-11-17 07:51:30,187 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-11-17 07:51:30,187 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 415 flow [2024-11-17 07:51:30,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:30,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:30,187 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:30,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:51:30,187 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:30,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:30,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1471992585, now seen corresponding path program 1 times [2024-11-17 07:51:30,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:30,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442745450] [2024-11-17 07:51:30,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:30,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:30,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:30,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442745450] [2024-11-17 07:51:30,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442745450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:30,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:30,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:51:30,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895144040] [2024-11-17 07:51:30,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:30,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:30,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:30,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:30,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:30,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-17 07:51:30,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 415 flow. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:30,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:30,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-17 07:51:30,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:30,604 INFO L124 PetriNetUnfolderBase]: 1840/3706 cut-off events. [2024-11-17 07:51:30,604 INFO L125 PetriNetUnfolderBase]: For 7055/7198 co-relation queries the response was YES. [2024-11-17 07:51:30,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11087 conditions, 3706 events. 1840/3706 cut-off events. For 7055/7198 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 27400 event pairs, 591 based on Foata normal form. 170/3692 useless extension candidates. Maximal degree in co-relation 10037. Up to 1244 conditions per place. [2024-11-17 07:51:30,620 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 114 selfloop transitions, 16 changer transitions 0/164 dead transitions. [2024-11-17 07:51:30,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 164 transitions, 1055 flow [2024-11-17 07:51:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:30,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 334 transitions. [2024-11-17 07:51:30,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6626984126984127 [2024-11-17 07:51:30,621 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 415 flow. Second operand 6 states and 334 transitions. [2024-11-17 07:51:30,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 164 transitions, 1055 flow [2024-11-17 07:51:30,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 164 transitions, 1006 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:30,639 INFO L231 Difference]: Finished difference. Result has 100 places, 88 transitions, 447 flow [2024-11-17 07:51:30,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=447, PETRI_PLACES=100, PETRI_TRANSITIONS=88} [2024-11-17 07:51:30,640 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-17 07:51:30,640 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 88 transitions, 447 flow [2024-11-17 07:51:30,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:30,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:30,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:30,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:51:30,640 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:30,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:30,641 INFO L85 PathProgramCache]: Analyzing trace with hash 7542838, now seen corresponding path program 1 times [2024-11-17 07:51:30,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:30,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137308796] [2024-11-17 07:51:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:30,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:30,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137308796] [2024-11-17 07:51:30,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137308796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:30,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:30,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:30,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183750171] [2024-11-17 07:51:30,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:30,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:30,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:30,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:30,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:30,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-17 07:51:30,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 88 transitions, 447 flow. Second operand has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:30,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:30,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-17 07:51:30,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:31,097 INFO L124 PetriNetUnfolderBase]: 2037/3944 cut-off events. [2024-11-17 07:51:31,097 INFO L125 PetriNetUnfolderBase]: For 15444/15836 co-relation queries the response was YES. [2024-11-17 07:51:31,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12831 conditions, 3944 events. 2037/3944 cut-off events. For 15444/15836 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 28814 event pairs, 498 based on Foata normal form. 310/4026 useless extension candidates. Maximal degree in co-relation 11596. Up to 1616 conditions per place. [2024-11-17 07:51:31,118 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 85 selfloop transitions, 12 changer transitions 0/133 dead transitions. [2024-11-17 07:51:31,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 133 transitions, 995 flow [2024-11-17 07:51:31,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:31,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-11-17 07:51:31,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880952380952381 [2024-11-17 07:51:31,119 INFO L175 Difference]: Start difference. First operand has 100 places, 88 transitions, 447 flow. Second operand 5 states and 289 transitions. [2024-11-17 07:51:31,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 133 transitions, 995 flow [2024-11-17 07:51:31,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 133 transitions, 890 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-17 07:51:31,132 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 452 flow [2024-11-17 07:51:31,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=452, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-11-17 07:51:31,132 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-11-17 07:51:31,132 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 452 flow [2024-11-17 07:51:31,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:31,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:31,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:31,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:51:31,133 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:31,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:31,133 INFO L85 PathProgramCache]: Analyzing trace with hash 7543831, now seen corresponding path program 1 times [2024-11-17 07:51:31,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:31,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322928788] [2024-11-17 07:51:31,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:31,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:31,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322928788] [2024-11-17 07:51:31,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322928788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:31,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:31,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:31,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467725342] [2024-11-17 07:51:31,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:31,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:31,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:31,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:31,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:31,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-11-17 07:51:31,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 452 flow. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:31,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:31,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-11-17 07:51:31,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:31,431 INFO L124 PetriNetUnfolderBase]: 1538/3401 cut-off events. [2024-11-17 07:51:31,432 INFO L125 PetriNetUnfolderBase]: For 9608/9899 co-relation queries the response was YES. [2024-11-17 07:51:31,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10366 conditions, 3401 events. 1538/3401 cut-off events. For 9608/9899 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 26474 event pairs, 498 based on Foata normal form. 300/3512 useless extension candidates. Maximal degree in co-relation 9364. Up to 1042 conditions per place. [2024-11-17 07:51:31,447 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 87 selfloop transitions, 9 changer transitions 0/132 dead transitions. [2024-11-17 07:51:31,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 132 transitions, 924 flow [2024-11-17 07:51:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:31,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-11-17 07:51:31,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-17 07:51:31,449 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 452 flow. Second operand 4 states and 238 transitions. [2024-11-17 07:51:31,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 132 transitions, 924 flow [2024-11-17 07:51:31,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 132 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:31,460 INFO L231 Difference]: Finished difference. Result has 100 places, 86 transitions, 448 flow [2024-11-17 07:51:31,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=448, PETRI_PLACES=100, PETRI_TRANSITIONS=86} [2024-11-17 07:51:31,460 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-17 07:51:31,460 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 86 transitions, 448 flow [2024-11-17 07:51:31,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:31,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:31,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:31,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 07:51:31,461 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:31,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash 233828598, now seen corresponding path program 1 times [2024-11-17 07:51:31,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:31,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420977203] [2024-11-17 07:51:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:31,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:31,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420977203] [2024-11-17 07:51:31,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420977203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:31,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:31,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:31,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930849679] [2024-11-17 07:51:31,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:31,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:31,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:31,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:31,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:31,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-17 07:51:31,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 86 transitions, 448 flow. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:31,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:31,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-17 07:51:31,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:31,926 INFO L124 PetriNetUnfolderBase]: 2060/3846 cut-off events. [2024-11-17 07:51:31,927 INFO L125 PetriNetUnfolderBase]: For 12353/12775 co-relation queries the response was YES. [2024-11-17 07:51:31,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12582 conditions, 3846 events. 2060/3846 cut-off events. For 12353/12775 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 27139 event pairs, 648 based on Foata normal form. 432/4104 useless extension candidates. Maximal degree in co-relation 11366. Up to 1355 conditions per place. [2024-11-17 07:51:31,944 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 152 selfloop transitions, 13 changer transitions 0/198 dead transitions. [2024-11-17 07:51:31,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 198 transitions, 1504 flow [2024-11-17 07:51:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:51:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:51:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 413 transitions. [2024-11-17 07:51:31,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2024-11-17 07:51:31,946 INFO L175 Difference]: Start difference. First operand has 100 places, 86 transitions, 448 flow. Second operand 8 states and 413 transitions. [2024-11-17 07:51:31,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 198 transitions, 1504 flow [2024-11-17 07:51:31,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 198 transitions, 1497 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:51:31,958 INFO L231 Difference]: Finished difference. Result has 109 places, 88 transitions, 498 flow [2024-11-17 07:51:31,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=498, PETRI_PLACES=109, PETRI_TRANSITIONS=88} [2024-11-17 07:51:31,959 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2024-11-17 07:51:31,959 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 88 transitions, 498 flow [2024-11-17 07:51:31,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:31,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:31,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:31,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:51:31,960 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:31,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash -851054777, now seen corresponding path program 1 times [2024-11-17 07:51:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:31,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098919278] [2024-11-17 07:51:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:31,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:31,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:31,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098919278] [2024-11-17 07:51:31,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098919278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:31,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:31,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:31,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188459028] [2024-11-17 07:51:31,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:31,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:31,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:31,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:31,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:32,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-17 07:51:32,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 88 transitions, 498 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:32,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:32,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-17 07:51:32,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:32,250 INFO L124 PetriNetUnfolderBase]: 1250/2867 cut-off events. [2024-11-17 07:51:32,250 INFO L125 PetriNetUnfolderBase]: For 11112/11428 co-relation queries the response was YES. [2024-11-17 07:51:32,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10149 conditions, 2867 events. 1250/2867 cut-off events. For 11112/11428 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 22061 event pairs, 389 based on Foata normal form. 229/3012 useless extension candidates. Maximal degree in co-relation 9163. Up to 1117 conditions per place. [2024-11-17 07:51:32,263 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 60 selfloop transitions, 7 changer transitions 0/109 dead transitions. [2024-11-17 07:51:32,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 109 transitions, 796 flow [2024-11-17 07:51:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:32,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-11-17 07:51:32,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-17 07:51:32,265 INFO L175 Difference]: Start difference. First operand has 109 places, 88 transitions, 498 flow. Second operand 4 states and 238 transitions. [2024-11-17 07:51:32,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 109 transitions, 796 flow [2024-11-17 07:51:32,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 109 transitions, 777 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:32,281 INFO L231 Difference]: Finished difference. Result has 109 places, 88 transitions, 521 flow [2024-11-17 07:51:32,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=521, PETRI_PLACES=109, PETRI_TRANSITIONS=88} [2024-11-17 07:51:32,282 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2024-11-17 07:51:32,282 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 88 transitions, 521 flow [2024-11-17 07:51:32,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:32,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:32,282 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:32,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 07:51:32,282 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:32,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:32,283 INFO L85 PathProgramCache]: Analyzing trace with hash -422558499, now seen corresponding path program 1 times [2024-11-17 07:51:32,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:32,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318492268] [2024-11-17 07:51:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:32,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:32,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:32,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318492268] [2024-11-17 07:51:32,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318492268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:32,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:32,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:51:32,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745413504] [2024-11-17 07:51:32,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:32,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:32,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:32,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:32,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:32,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-17 07:51:32,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 88 transitions, 521 flow. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:32,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:32,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-17 07:51:32,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:32,689 INFO L124 PetriNetUnfolderBase]: 1923/3611 cut-off events. [2024-11-17 07:51:32,690 INFO L125 PetriNetUnfolderBase]: For 16164/16517 co-relation queries the response was YES. [2024-11-17 07:51:32,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13522 conditions, 3611 events. 1923/3611 cut-off events. For 16164/16517 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 25147 event pairs, 634 based on Foata normal form. 358/3908 useless extension candidates. Maximal degree in co-relation 12346. Up to 1331 conditions per place. [2024-11-17 07:51:32,703 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 135 selfloop transitions, 16 changer transitions 0/182 dead transitions. [2024-11-17 07:51:32,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 182 transitions, 1535 flow [2024-11-17 07:51:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:32,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 330 transitions. [2024-11-17 07:51:32,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-17 07:51:32,704 INFO L175 Difference]: Start difference. First operand has 109 places, 88 transitions, 521 flow. Second operand 6 states and 330 transitions. [2024-11-17 07:51:32,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 182 transitions, 1535 flow [2024-11-17 07:51:32,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 182 transitions, 1493 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:32,726 INFO L231 Difference]: Finished difference. Result has 111 places, 90 transitions, 560 flow [2024-11-17 07:51:32,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=560, PETRI_PLACES=111, PETRI_TRANSITIONS=90} [2024-11-17 07:51:32,727 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places. [2024-11-17 07:51:32,727 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 90 transitions, 560 flow [2024-11-17 07:51:32,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:32,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:32,727 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:32,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 07:51:32,727 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:32,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:32,728 INFO L85 PathProgramCache]: Analyzing trace with hash -612924467, now seen corresponding path program 1 times [2024-11-17 07:51:32,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:32,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905694272] [2024-11-17 07:51:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:32,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:32,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:32,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905694272] [2024-11-17 07:51:32,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905694272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:32,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:32,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:32,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304219602] [2024-11-17 07:51:32,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:32,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:32,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:32,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:32,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:32,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-17 07:51:32,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 90 transitions, 560 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:32,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:32,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-17 07:51:32,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:32,996 INFO L124 PetriNetUnfolderBase]: 1191/2838 cut-off events. [2024-11-17 07:51:32,996 INFO L125 PetriNetUnfolderBase]: For 12744/12955 co-relation queries the response was YES. [2024-11-17 07:51:33,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10651 conditions, 2838 events. 1191/2838 cut-off events. For 12744/12955 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22069 event pairs, 491 based on Foata normal form. 213/3006 useless extension candidates. Maximal degree in co-relation 9646. Up to 1025 conditions per place. [2024-11-17 07:51:33,010 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 63 selfloop transitions, 7 changer transitions 0/112 dead transitions. [2024-11-17 07:51:33,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 112 transitions, 875 flow [2024-11-17 07:51:33,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 227 transitions. [2024-11-17 07:51:33,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755952380952381 [2024-11-17 07:51:33,011 INFO L175 Difference]: Start difference. First operand has 111 places, 90 transitions, 560 flow. Second operand 4 states and 227 transitions. [2024-11-17 07:51:33,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 112 transitions, 875 flow [2024-11-17 07:51:33,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 112 transitions, 802 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-17 07:51:33,030 INFO L231 Difference]: Finished difference. Result has 107 places, 89 transitions, 529 flow [2024-11-17 07:51:33,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=529, PETRI_PLACES=107, PETRI_TRANSITIONS=89} [2024-11-17 07:51:33,031 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2024-11-17 07:51:33,031 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 89 transitions, 529 flow [2024-11-17 07:51:33,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:33,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:33,031 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-17 07:51:33,032 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:33,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1820789687, now seen corresponding path program 1 times [2024-11-17 07:51:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151135742] [2024-11-17 07:51:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:33,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:33,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151135742] [2024-11-17 07:51:33,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151135742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:33,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:33,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:33,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140240396] [2024-11-17 07:51:33,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:33,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:33,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:33,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:33,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-17 07:51:33,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 89 transitions, 529 flow. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:33,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:33,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-17 07:51:33,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:33,501 INFO L124 PetriNetUnfolderBase]: 1899/3586 cut-off events. [2024-11-17 07:51:33,501 INFO L125 PetriNetUnfolderBase]: For 12886/13212 co-relation queries the response was YES. [2024-11-17 07:51:33,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13088 conditions, 3586 events. 1899/3586 cut-off events. For 12886/13212 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 24923 event pairs, 389 based on Foata normal form. 320/3885 useless extension candidates. Maximal degree in co-relation 11831. Up to 1615 conditions per place. [2024-11-17 07:51:33,515 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 90 selfloop transitions, 12 changer transitions 0/134 dead transitions. [2024-11-17 07:51:33,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 134 transitions, 1015 flow [2024-11-17 07:51:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2024-11-17 07:51:33,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-11-17 07:51:33,517 INFO L175 Difference]: Start difference. First operand has 107 places, 89 transitions, 529 flow. Second operand 5 states and 288 transitions. [2024-11-17 07:51:33,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 134 transitions, 1015 flow [2024-11-17 07:51:33,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 134 transitions, 971 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-17 07:51:33,542 INFO L231 Difference]: Finished difference. Result has 104 places, 88 transitions, 505 flow [2024-11-17 07:51:33,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=505, PETRI_PLACES=104, PETRI_TRANSITIONS=88} [2024-11-17 07:51:33,542 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 25 predicate places. [2024-11-17 07:51:33,543 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 88 transitions, 505 flow [2024-11-17 07:51:33,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:33,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:33,543 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:33,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 07:51:33,543 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:33,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:33,544 INFO L85 PathProgramCache]: Analyzing trace with hash -448511813, now seen corresponding path program 1 times [2024-11-17 07:51:33,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:33,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279597644] [2024-11-17 07:51:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:33,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:33,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:33,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279597644] [2024-11-17 07:51:33,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279597644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:33,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:33,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:33,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611385556] [2024-11-17 07:51:33,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:33,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:33,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:33,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:33,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:33,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-11-17 07:51:33,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 88 transitions, 505 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:33,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:33,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-11-17 07:51:33,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:33,802 INFO L124 PetriNetUnfolderBase]: 1313/2965 cut-off events. [2024-11-17 07:51:33,802 INFO L125 PetriNetUnfolderBase]: For 11392/11623 co-relation queries the response was YES. [2024-11-17 07:51:33,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10463 conditions, 2965 events. 1313/2965 cut-off events. For 11392/11623 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 22639 event pairs, 422 based on Foata normal form. 209/3134 useless extension candidates. Maximal degree in co-relation 9616. Up to 1152 conditions per place. [2024-11-17 07:51:33,813 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 65 selfloop transitions, 7 changer transitions 0/111 dead transitions. [2024-11-17 07:51:33,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 111 transitions, 826 flow [2024-11-17 07:51:33,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-11-17 07:51:33,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2024-11-17 07:51:33,814 INFO L175 Difference]: Start difference. First operand has 104 places, 88 transitions, 505 flow. Second operand 4 states and 237 transitions. [2024-11-17 07:51:33,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 111 transitions, 826 flow [2024-11-17 07:51:33,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 807 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:33,827 INFO L231 Difference]: Finished difference. Result has 105 places, 88 transitions, 528 flow [2024-11-17 07:51:33,827 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=528, PETRI_PLACES=105, PETRI_TRANSITIONS=88} [2024-11-17 07:51:33,827 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 26 predicate places. [2024-11-17 07:51:33,827 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 88 transitions, 528 flow [2024-11-17 07:51:33,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:33,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:33,827 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:33,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 07:51:33,827 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:33,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:33,828 INFO L85 PathProgramCache]: Analyzing trace with hash -609904848, now seen corresponding path program 1 times [2024-11-17 07:51:33,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:33,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304070115] [2024-11-17 07:51:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:33,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:33,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:33,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304070115] [2024-11-17 07:51:33,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304070115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:33,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:33,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:33,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063220736] [2024-11-17 07:51:33,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:33,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:33,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:33,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:33,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:33,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-17 07:51:33,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 88 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:33,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:33,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-17 07:51:33,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:34,260 INFO L124 PetriNetUnfolderBase]: 1624/3248 cut-off events. [2024-11-17 07:51:34,260 INFO L125 PetriNetUnfolderBase]: For 13963/14222 co-relation queries the response was YES. [2024-11-17 07:51:34,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12174 conditions, 3248 events. 1624/3248 cut-off events. For 13963/14222 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 23175 event pairs, 520 based on Foata normal form. 281/3472 useless extension candidates. Maximal degree in co-relation 11404. Up to 1079 conditions per place. [2024-11-17 07:51:34,272 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 142 selfloop transitions, 14 changer transitions 18/207 dead transitions. [2024-11-17 07:51:34,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 207 transitions, 1772 flow [2024-11-17 07:51:34,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:51:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:51:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 410 transitions. [2024-11-17 07:51:34,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6101190476190477 [2024-11-17 07:51:34,274 INFO L175 Difference]: Start difference. First operand has 105 places, 88 transitions, 528 flow. Second operand 8 states and 410 transitions. [2024-11-17 07:51:34,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 207 transitions, 1772 flow [2024-11-17 07:51:34,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 207 transitions, 1733 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:34,289 INFO L231 Difference]: Finished difference. Result has 108 places, 84 transitions, 507 flow [2024-11-17 07:51:34,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=507, PETRI_PLACES=108, PETRI_TRANSITIONS=84} [2024-11-17 07:51:34,289 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 29 predicate places. [2024-11-17 07:51:34,290 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 84 transitions, 507 flow [2024-11-17 07:51:34,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:34,290 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:34,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-17 07:51:34,290 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:34,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:34,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1018994434, now seen corresponding path program 1 times [2024-11-17 07:51:34,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:34,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565173080] [2024-11-17 07:51:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:34,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:34,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:34,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565173080] [2024-11-17 07:51:34,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565173080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:34,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:34,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27714065] [2024-11-17 07:51:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:34,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:34,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:34,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-11-17 07:51:34,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 84 transitions, 507 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:34,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-11-17 07:51:34,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:34,524 INFO L124 PetriNetUnfolderBase]: 1117/2675 cut-off events. [2024-11-17 07:51:34,524 INFO L125 PetriNetUnfolderBase]: For 11345/11528 co-relation queries the response was YES. [2024-11-17 07:51:34,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9556 conditions, 2675 events. 1117/2675 cut-off events. For 11345/11528 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 20823 event pairs, 475 based on Foata normal form. 204/2839 useless extension candidates. Maximal degree in co-relation 8695. Up to 925 conditions per place. [2024-11-17 07:51:34,535 INFO L140 encePairwiseOnDemand]: 81/84 looper letters, 64 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2024-11-17 07:51:34,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 106 transitions, 815 flow [2024-11-17 07:51:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:34,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-11-17 07:51:34,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-11-17 07:51:34,536 INFO L175 Difference]: Start difference. First operand has 108 places, 84 transitions, 507 flow. Second operand 4 states and 225 transitions. [2024-11-17 07:51:34,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 106 transitions, 815 flow [2024-11-17 07:51:34,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 106 transitions, 738 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-17 07:51:34,550 INFO L231 Difference]: Finished difference. Result has 100 places, 83 transitions, 463 flow [2024-11-17 07:51:34,551 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=100, PETRI_TRANSITIONS=83} [2024-11-17 07:51:34,551 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-11-17 07:51:34,551 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 83 transitions, 463 flow [2024-11-17 07:51:34,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:34,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:34,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-17 07:51:34,552 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:34,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:34,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1524056739, now seen corresponding path program 1 times [2024-11-17 07:51:34,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:34,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872229411] [2024-11-17 07:51:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:34,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:34,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:34,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872229411] [2024-11-17 07:51:34,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872229411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:34,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:34,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:34,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484058670] [2024-11-17 07:51:34,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:34,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:34,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:34,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:34,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:34,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-11-17 07:51:34,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 83 transitions, 463 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:34,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-11-17 07:51:34,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:34,859 INFO L124 PetriNetUnfolderBase]: 1849/3394 cut-off events. [2024-11-17 07:51:34,859 INFO L125 PetriNetUnfolderBase]: For 11155/11434 co-relation queries the response was YES. [2024-11-17 07:51:34,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11807 conditions, 3394 events. 1849/3394 cut-off events. For 11155/11434 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 23060 event pairs, 369 based on Foata normal form. 315/3684 useless extension candidates. Maximal degree in co-relation 10472. Up to 1666 conditions per place. [2024-11-17 07:51:34,870 INFO L140 encePairwiseOnDemand]: 76/84 looper letters, 89 selfloop transitions, 9 changer transitions 2/128 dead transitions. [2024-11-17 07:51:34,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 128 transitions, 945 flow [2024-11-17 07:51:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:34,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:34,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 285 transitions. [2024-11-17 07:51:34,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-17 07:51:34,872 INFO L175 Difference]: Start difference. First operand has 100 places, 83 transitions, 463 flow. Second operand 5 states and 285 transitions. [2024-11-17 07:51:34,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 128 transitions, 945 flow [2024-11-17 07:51:34,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 128 transitions, 921 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:51:34,890 INFO L231 Difference]: Finished difference. Result has 99 places, 80 transitions, 443 flow [2024-11-17 07:51:34,890 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=443, PETRI_PLACES=99, PETRI_TRANSITIONS=80} [2024-11-17 07:51:34,890 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-11-17 07:51:34,890 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 80 transitions, 443 flow [2024-11-17 07:51:34,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:34,891 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:34,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-17 07:51:34,891 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-17 07:51:34,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:34,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1118015, now seen corresponding path program 1 times [2024-11-17 07:51:34,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:34,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756093634] [2024-11-17 07:51:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:34,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:34,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:34,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756093634] [2024-11-17 07:51:34,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756093634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:34,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:34,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:34,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922916462] [2024-11-17 07:51:34,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:34,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:34,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:34,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:34,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:34,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-11-17 07:51:34,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 80 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:34,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-11-17 07:51:34,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:35,277 INFO L124 PetriNetUnfolderBase]: 1361/2709 cut-off events. [2024-11-17 07:51:35,278 INFO L125 PetriNetUnfolderBase]: For 8475/8678 co-relation queries the response was YES. [2024-11-17 07:51:35,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9584 conditions, 2709 events. 1361/2709 cut-off events. For 8475/8678 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 18918 event pairs, 475 based on Foata normal form. 255/2937 useless extension candidates. Maximal degree in co-relation 9566. Up to 925 conditions per place. [2024-11-17 07:51:35,283 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 0 selfloop transitions, 0 changer transitions 194/194 dead transitions. [2024-11-17 07:51:35,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 194 transitions, 1502 flow [2024-11-17 07:51:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:51:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:51:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 402 transitions. [2024-11-17 07:51:35,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-11-17 07:51:35,285 INFO L175 Difference]: Start difference. First operand has 99 places, 80 transitions, 443 flow. Second operand 8 states and 402 transitions. [2024-11-17 07:51:35,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 194 transitions, 1502 flow [2024-11-17 07:51:35,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 194 transitions, 1494 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:35,297 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2024-11-17 07:51:35,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2024-11-17 07:51:35,297 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 23 predicate places. [2024-11-17 07:51:35,297 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2024-11-17 07:51:35,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:35,299 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-11-17 07:51:35,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-11-17 07:51:35,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-11-17 07:51:35,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-11-17 07:51:35,303 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-11-17 07:51:35,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-11-17 07:51:35,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-11-17 07:51:35,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-11-17 07:51:35,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-11-17 07:51:35,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-11-17 07:51:35,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-17 07:51:35,304 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:35,311 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:51:35,311 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:51:35,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:51:35 BasicIcfg [2024-11-17 07:51:35,315 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:51:35,318 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:51:35,318 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:51:35,318 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:51:35,319 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:26" (3/4) ... [2024-11-17 07:51:35,320 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:51:35,324 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:51:35,324 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:51:35,327 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2024-11-17 07:51:35,327 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-17 07:51:35,327 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-17 07:51:35,327 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-17 07:51:35,390 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:51:35,390 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:51:35,390 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:51:35,391 INFO L158 Benchmark]: Toolchain (without parser) took 10143.50ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 70.6MB in the beginning and 487.3MB in the end (delta: -416.7MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:35,391 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 94.3MB in the end (delta: 68.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:51:35,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.11ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 57.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 07:51:35,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.31ms. Allocated memory is still 142.6MB. Free memory was 57.1MB in the beginning and 54.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:35,392 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 142.6MB. Free memory was 54.9MB in the beginning and 52.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:35,392 INFO L158 Benchmark]: IcfgBuilder took 618.84ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 52.7MB in the beginning and 115.4MB in the end (delta: -62.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 07:51:35,392 INFO L158 Benchmark]: TraceAbstraction took 9175.80ms. Allocated memory was 195.0MB in the beginning and 637.5MB in the end (delta: 442.5MB). Free memory was 114.4MB in the beginning and 491.5MB in the end (delta: -377.1MB). Peak memory consumption was 334.8MB. Max. memory is 16.1GB. [2024-11-17 07:51:35,392 INFO L158 Benchmark]: Witness Printer took 72.41ms. Allocated memory is still 637.5MB. Free memory was 491.5MB in the beginning and 487.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:51:35,393 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 94.3MB in the end (delta: 68.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.11ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 57.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.31ms. Allocated memory is still 142.6MB. Free memory was 57.1MB in the beginning and 54.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 142.6MB. Free memory was 54.9MB in the beginning and 52.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 618.84ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 52.7MB in the beginning and 115.4MB in the end (delta: -62.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9175.80ms. Allocated memory was 195.0MB in the beginning and 637.5MB in the end (delta: 442.5MB). Free memory was 114.4MB in the beginning and 491.5MB in the end (delta: -377.1MB). Peak memory consumption was 334.8MB. Max. memory is 16.1GB. * Witness Printer took 72.41ms. Allocated memory is still 637.5MB. Free memory was 491.5MB in the beginning and 487.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 147 locations, 50 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: 9.1s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2685 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2035 mSDsluCounter, 401 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 286 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4142 IncrementalHoareTripleChecker+Invalid, 4428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 286 mSolverCounterUnsat, 153 mSDtfsCounter, 4142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=560occurred in iteration=15, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:51:35,418 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