./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.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 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:45:42,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:45:42,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:45:42,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:45:42,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:45:42,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:45:42,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:45:42,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:45:42,366 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:45:42,366 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:45:42,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:45:42,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:45:42,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:45:42,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:45:42,369 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:45:42,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:45:42,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:45:42,370 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:45:42,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:45:42,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:45:42,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:45:42,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:45:42,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:45:42,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:45:42,374 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:45:42,374 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:45:42,375 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:45:42,375 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:45:42,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:45:42,375 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:45:42,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:45:42,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:45:42,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:45:42,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:45:42,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:45:42,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:45:42,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:45:42,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:45:42,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:45:42,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:45:42,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:45:42,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:45:42,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:45:42,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:45:42,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2024-10-13 16:45:42,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:45:42,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:45:42,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:45:42,586 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:45:42,586 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:45:42,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-10-13 16:45:43,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:45:43,941 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:45:43,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-10-13 16:45:43,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316f46f75/537e5f993905422a9e9e07028f96b99f/FLAG15f968be4 [2024-10-13 16:45:43,958 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316f46f75/537e5f993905422a9e9e07028f96b99f [2024-10-13 16:45:43,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:45:43,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:45:43,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:45:43,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:45:43,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:45:43,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:45:43" (1/1) ... [2024-10-13 16:45:43,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d6375d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:43, skipping insertion in model container [2024-10-13 16:45:43,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:45:43" (1/1) ... [2024-10-13 16:45:43,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:45:44,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:45:44,200 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:45:44,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:45:44,234 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:45:44,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44 WrapperNode [2024-10-13 16:45:44,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:45:44,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:45:44,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:45:44,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:45:44,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,270 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 213 [2024-10-13 16:45:44,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:45:44,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:45:44,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:45:44,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:45:44,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,295 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]. [2024-10-13 16:45:44,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:45:44,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:45:44,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:45:44,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:45:44,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (1/1) ... [2024-10-13 16:45:44,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:45:44,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:45:44,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 16:45:44,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 16:45:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:45:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 16:45:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 16:45:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 16:45:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 16:45:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 16:45:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 16:45:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:45:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:45:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:45:44,389 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:45:44,464 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:45:44,465 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:45:44,766 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:45:44,766 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:45:44,937 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:45:44,938 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 16:45:44,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:45:44 BoogieIcfgContainer [2024-10-13 16:45:44,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:45:44,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:45:44,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:45:44,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:45:44,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:45:43" (1/3) ... [2024-10-13 16:45:44,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a8b7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:45:44, skipping insertion in model container [2024-10-13 16:45:44,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:45:44" (2/3) ... [2024-10-13 16:45:44,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a8b7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:45:44, skipping insertion in model container [2024-10-13 16:45:44,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:45:44" (3/3) ... [2024-10-13 16:45:44,945 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2024-10-13 16:45:44,959 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:45:44,959 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-13 16:45:44,960 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:45:45,019 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-13 16:45:45,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 217 flow [2024-10-13 16:45:45,084 INFO L124 PetriNetUnfolderBase]: 15/95 cut-off events. [2024-10-13 16:45:45,085 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-13 16:45:45,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 15/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 350 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-10-13 16:45:45,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 98 transitions, 217 flow [2024-10-13 16:45:45,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 93 transitions, 201 flow [2024-10-13 16:45:45,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:45:45,104 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;@6819ec98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:45:45,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-13 16:45:45,110 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:45:45,113 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-10-13 16:45:45,113 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 16:45:45,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:45,114 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:45,114 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:45,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:45,119 INFO L85 PathProgramCache]: Analyzing trace with hash 107540757, now seen corresponding path program 1 times [2024-10-13 16:45:45,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:45,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359847387] [2024-10-13 16:45:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:45,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:45,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:45,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359847387] [2024-10-13 16:45:45,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359847387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:45,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:45,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:45:45,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200347658] [2024-10-13 16:45:45,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:45,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:45,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:45,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:45,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:45,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-10-13 16:45:45,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:45,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:45,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-10-13 16:45:45,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:46,877 INFO L124 PetriNetUnfolderBase]: 11126/17819 cut-off events. [2024-10-13 16:45:46,877 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2024-10-13 16:45:46,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32962 conditions, 17819 events. 11126/17819 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 141566 event pairs, 3987 based on Foata normal form. 444/15003 useless extension candidates. Maximal degree in co-relation 32117. Up to 7687 conditions per place. [2024-10-13 16:45:47,004 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 93 selfloop transitions, 5 changer transitions 0/146 dead transitions. [2024-10-13 16:45:47,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 515 flow [2024-10-13 16:45:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:47,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-10-13 16:45:47,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7780612244897959 [2024-10-13 16:45:47,015 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 201 flow. Second operand 4 states and 305 transitions. [2024-10-13 16:45:47,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 515 flow [2024-10-13 16:45:47,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 146 transitions, 500 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 16:45:47,042 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 226 flow [2024-10-13 16:45:47,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2024-10-13 16:45:47,046 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-10-13 16:45:47,046 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 226 flow [2024-10-13 16:45:47,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:47,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:47,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:47,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:45:47,047 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:47,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:47,048 INFO L85 PathProgramCache]: Analyzing trace with hash -961203097, now seen corresponding path program 1 times [2024-10-13 16:45:47,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:47,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552235831] [2024-10-13 16:45:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:47,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:47,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:47,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:47,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552235831] [2024-10-13 16:45:47,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552235831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:47,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:47,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:45:47,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112023028] [2024-10-13 16:45:47,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:47,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:47,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:47,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:47,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:47,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-10-13 16:45:47,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:47,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:47,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-10-13 16:45:47,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:48,010 INFO L124 PetriNetUnfolderBase]: 8257/14973 cut-off events. [2024-10-13 16:45:48,011 INFO L125 PetriNetUnfolderBase]: For 2854/2874 co-relation queries the response was YES. [2024-10-13 16:45:48,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29073 conditions, 14973 events. 8257/14973 cut-off events. For 2854/2874 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 132562 event pairs, 2320 based on Foata normal form. 20/12961 useless extension candidates. Maximal degree in co-relation 16338. Up to 6222 conditions per place. [2024-10-13 16:45:48,149 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 63 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-10-13 16:45:48,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 411 flow [2024-10-13 16:45:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2024-10-13 16:45:48,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7193877551020408 [2024-10-13 16:45:48,152 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 226 flow. Second operand 4 states and 282 transitions. [2024-10-13 16:45:48,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 411 flow [2024-10-13 16:45:48,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 119 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:45:48,203 INFO L231 Difference]: Finished difference. Result has 90 places, 94 transitions, 232 flow [2024-10-13 16:45:48,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=90, PETRI_TRANSITIONS=94} [2024-10-13 16:45:48,204 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 2 predicate places. [2024-10-13 16:45:48,205 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 94 transitions, 232 flow [2024-10-13 16:45:48,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:48,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:48,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:48,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:45:48,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -476424384, now seen corresponding path program 1 times [2024-10-13 16:45:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:48,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954246931] [2024-10-13 16:45:48,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:48,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:48,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954246931] [2024-10-13 16:45:48,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954246931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:48,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:48,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:45:48,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351912017] [2024-10-13 16:45:48,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:48,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:48,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:48,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:48,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:48,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-10-13 16:45:48,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 94 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:48,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:48,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-10-13 16:45:48,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:49,724 INFO L124 PetriNetUnfolderBase]: 13404/22500 cut-off events. [2024-10-13 16:45:49,724 INFO L125 PetriNetUnfolderBase]: For 7387/8100 co-relation queries the response was YES. [2024-10-13 16:45:49,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45221 conditions, 22500 events. 13404/22500 cut-off events. For 7387/8100 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 194633 event pairs, 4867 based on Foata normal form. 905/19695 useless extension candidates. Maximal degree in co-relation 26814. Up to 9225 conditions per place. [2024-10-13 16:45:49,967 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 97 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2024-10-13 16:45:49,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 149 transitions, 600 flow [2024-10-13 16:45:49,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:49,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:49,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-10-13 16:45:49,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729591836734694 [2024-10-13 16:45:49,972 INFO L175 Difference]: Start difference. First operand has 90 places, 94 transitions, 232 flow. Second operand 4 states and 303 transitions. [2024-10-13 16:45:49,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 149 transitions, 600 flow [2024-10-13 16:45:50,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 149 transitions, 580 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:45:50,026 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 258 flow [2024-10-13 16:45:50,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2024-10-13 16:45:50,026 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-10-13 16:45:50,027 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 258 flow [2024-10-13 16:45:50,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:50,027 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:50,027 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:50,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:45:50,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:50,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:50,028 INFO L85 PathProgramCache]: Analyzing trace with hash 267444025, now seen corresponding path program 1 times [2024-10-13 16:45:50,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:50,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206517007] [2024-10-13 16:45:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:50,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:50,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:50,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206517007] [2024-10-13 16:45:50,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206517007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:50,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:50,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:45:50,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990003707] [2024-10-13 16:45:50,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:50,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:50,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:50,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:50,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:50,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-10-13 16:45:50,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:50,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:50,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-10-13 16:45:50,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:51,320 INFO L124 PetriNetUnfolderBase]: 9856/18358 cut-off events. [2024-10-13 16:45:51,321 INFO L125 PetriNetUnfolderBase]: For 7482/8010 co-relation queries the response was YES. [2024-10-13 16:45:51,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37855 conditions, 18358 events. 9856/18358 cut-off events. For 7482/8010 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 170608 event pairs, 2826 based on Foata normal form. 542/16641 useless extension candidates. Maximal degree in co-relation 22936. Up to 7650 conditions per place. [2024-10-13 16:45:51,410 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 68 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2024-10-13 16:45:51,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 122 transitions, 473 flow [2024-10-13 16:45:51,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-10-13 16:45:51,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7091836734693877 [2024-10-13 16:45:51,412 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 258 flow. Second operand 4 states and 278 transitions. [2024-10-13 16:45:51,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 122 transitions, 473 flow [2024-10-13 16:45:51,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 122 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:45:51,462 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 262 flow [2024-10-13 16:45:51,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-10-13 16:45:51,464 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-10-13 16:45:51,464 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 262 flow [2024-10-13 16:45:51,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:51,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:51,465 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:51,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:45:51,465 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:51,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1884253256, now seen corresponding path program 1 times [2024-10-13 16:45:51,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:51,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338219245] [2024-10-13 16:45:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:51,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:51,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338219245] [2024-10-13 16:45:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338219245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:51,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:51,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:45:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473793086] [2024-10-13 16:45:51,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:51,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:51,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:51,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:51,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:51,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-10-13 16:45:51,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:51,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:51,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-10-13 16:45:51,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:52,446 INFO L124 PetriNetUnfolderBase]: 9875/18608 cut-off events. [2024-10-13 16:45:52,446 INFO L125 PetriNetUnfolderBase]: For 8821/9099 co-relation queries the response was YES. [2024-10-13 16:45:52,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38917 conditions, 18608 events. 9875/18608 cut-off events. For 8821/9099 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 175301 event pairs, 2742 based on Foata normal form. 278/16630 useless extension candidates. Maximal degree in co-relation 23741. Up to 7590 conditions per place. [2024-10-13 16:45:52,551 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 66 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-10-13 16:45:52,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 479 flow [2024-10-13 16:45:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:52,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-10-13 16:45:52,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7168367346938775 [2024-10-13 16:45:52,553 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 262 flow. Second operand 4 states and 281 transitions. [2024-10-13 16:45:52,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 120 transitions, 479 flow [2024-10-13 16:45:52,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 120 transitions, 465 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:45:52,653 INFO L231 Difference]: Finished difference. Result has 93 places, 94 transitions, 260 flow [2024-10-13 16:45:52,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=93, PETRI_TRANSITIONS=94} [2024-10-13 16:45:52,655 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-10-13 16:45:52,656 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 94 transitions, 260 flow [2024-10-13 16:45:52,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:52,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:52,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:52,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 16:45:52,656 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:52,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:52,657 INFO L85 PathProgramCache]: Analyzing trace with hash -299170103, now seen corresponding path program 1 times [2024-10-13 16:45:52,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:52,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220438880] [2024-10-13 16:45:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:52,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:52,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:52,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220438880] [2024-10-13 16:45:52,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220438880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:52,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:52,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:45:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626766199] [2024-10-13 16:45:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:52,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:45:52,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:52,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:45:52,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:45:52,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-10-13 16:45:52,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:52,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:52,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-10-13 16:45:52,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:53,963 INFO L124 PetriNetUnfolderBase]: 13504/21736 cut-off events. [2024-10-13 16:45:53,963 INFO L125 PetriNetUnfolderBase]: For 9450/10175 co-relation queries the response was YES. [2024-10-13 16:45:54,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48199 conditions, 21736 events. 13504/21736 cut-off events. For 9450/10175 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 178892 event pairs, 2750 based on Foata normal form. 365/20178 useless extension candidates. Maximal degree in co-relation 28750. Up to 9338 conditions per place. [2024-10-13 16:45:54,131 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 95 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-10-13 16:45:54,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 622 flow [2024-10-13 16:45:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:45:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:45:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2024-10-13 16:45:54,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-10-13 16:45:54,133 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 260 flow. Second operand 5 states and 355 transitions. [2024-10-13 16:45:54,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 622 flow [2024-10-13 16:45:54,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 147 transitions, 602 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:45:54,213 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 262 flow [2024-10-13 16:45:54,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2024-10-13 16:45:54,214 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-10-13 16:45:54,214 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 262 flow [2024-10-13 16:45:54,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:54,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:54,215 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:54,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:45:54,215 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:54,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:54,216 INFO L85 PathProgramCache]: Analyzing trace with hash -299169078, now seen corresponding path program 1 times [2024-10-13 16:45:54,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:54,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914893487] [2024-10-13 16:45:54,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:54,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:54,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:54,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914893487] [2024-10-13 16:45:54,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914893487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:54,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:54,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:45:54,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179748749] [2024-10-13 16:45:54,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:54,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:54,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:54,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:54,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:54,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-10-13 16:45:54,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:54,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:54,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-10-13 16:45:54,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:55,669 INFO L124 PetriNetUnfolderBase]: 10971/19600 cut-off events. [2024-10-13 16:45:55,669 INFO L125 PetriNetUnfolderBase]: For 10043/10625 co-relation queries the response was YES. [2024-10-13 16:45:55,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41971 conditions, 19600 events. 10971/19600 cut-off events. For 10043/10625 co-relation queries the response was YES. Maximal size of possible extension queue 1162. Compared 177042 event pairs, 5070 based on Foata normal form. 561/17937 useless extension candidates. Maximal degree in co-relation 25125. Up to 9302 conditions per place. [2024-10-13 16:45:55,782 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 97 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2024-10-13 16:45:55,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 610 flow [2024-10-13 16:45:55,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:55,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:55,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2024-10-13 16:45:55,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7653061224489796 [2024-10-13 16:45:55,783 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 262 flow. Second operand 4 states and 300 transitions. [2024-10-13 16:45:55,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 610 flow [2024-10-13 16:45:55,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 147 transitions, 598 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:45:55,841 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 252 flow [2024-10-13 16:45:55,841 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2024-10-13 16:45:55,841 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-10-13 16:45:55,841 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 252 flow [2024-10-13 16:45:55,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:55,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:55,842 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:55,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:45:55,842 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:55,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:55,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1717660196, now seen corresponding path program 1 times [2024-10-13 16:45:55,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:55,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206921522] [2024-10-13 16:45:55,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:55,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:55,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:55,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206921522] [2024-10-13 16:45:55,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206921522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:55,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:55,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:45:55,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217994115] [2024-10-13 16:45:55,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:55,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:55,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:55,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:55,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:55,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-10-13 16:45:55,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:55,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:55,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-10-13 16:45:55,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:57,112 INFO L124 PetriNetUnfolderBase]: 9894/18268 cut-off events. [2024-10-13 16:45:57,113 INFO L125 PetriNetUnfolderBase]: For 8863/9141 co-relation queries the response was YES. [2024-10-13 16:45:57,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38362 conditions, 18268 events. 9894/18268 cut-off events. For 8863/9141 co-relation queries the response was YES. Maximal size of possible extension queue 1113. Compared 168152 event pairs, 2742 based on Foata normal form. 552/16669 useless extension candidates. Maximal degree in co-relation 23634. Up to 7864 conditions per place. [2024-10-13 16:45:57,225 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 67 selfloop transitions, 4 changer transitions 0/117 dead transitions. [2024-10-13 16:45:57,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 117 transitions, 468 flow [2024-10-13 16:45:57,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-10-13 16:45:57,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066326530612245 [2024-10-13 16:45:57,227 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 252 flow. Second operand 4 states and 277 transitions. [2024-10-13 16:45:57,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 117 transitions, 468 flow [2024-10-13 16:45:57,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:45:57,323 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 250 flow [2024-10-13 16:45:57,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-10-13 16:45:57,324 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-10-13 16:45:57,324 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 250 flow [2024-10-13 16:45:57,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:57,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:57,325 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:57,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 16:45:57,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:57,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1182408726, now seen corresponding path program 1 times [2024-10-13 16:45:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107108811] [2024-10-13 16:45:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:57,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:57,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:57,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107108811] [2024-10-13 16:45:57,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107108811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:57,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:57,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:45:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600279061] [2024-10-13 16:45:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:57,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:45:57,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:45:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:45:57,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-10-13 16:45:57,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:57,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:57,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-10-13 16:45:57,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:59,170 INFO L124 PetriNetUnfolderBase]: 15804/26988 cut-off events. [2024-10-13 16:45:59,170 INFO L125 PetriNetUnfolderBase]: For 14945/15787 co-relation queries the response was YES. [2024-10-13 16:45:59,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57392 conditions, 26988 events. 15804/26988 cut-off events. For 14945/15787 co-relation queries the response was YES. Maximal size of possible extension queue 1497. Compared 243981 event pairs, 6214 based on Foata normal form. 1444/24795 useless extension candidates. Maximal degree in co-relation 35440. Up to 11473 conditions per place. [2024-10-13 16:45:59,360 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 101 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-10-13 16:45:59,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 148 transitions, 664 flow [2024-10-13 16:45:59,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:45:59,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:45:59,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2024-10-13 16:45:59,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2024-10-13 16:45:59,362 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 250 flow. Second operand 4 states and 301 transitions. [2024-10-13 16:45:59,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 148 transitions, 664 flow [2024-10-13 16:45:59,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 148 transitions, 644 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:45:59,421 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 276 flow [2024-10-13 16:45:59,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2024-10-13 16:45:59,421 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-10-13 16:45:59,421 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 276 flow [2024-10-13 16:45:59,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:59,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:59,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:45:59,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 16:45:59,422 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:45:59,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:59,423 INFO L85 PathProgramCache]: Analyzing trace with hash -684337860, now seen corresponding path program 1 times [2024-10-13 16:45:59,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:59,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963578932] [2024-10-13 16:45:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:59,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:45:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:45:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:45:59,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:45:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963578932] [2024-10-13 16:45:59,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963578932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:45:59,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:45:59,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:45:59,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746479142] [2024-10-13 16:45:59,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:45:59,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:45:59,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:45:59,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:45:59,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:45:59,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-10-13 16:45:59,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:59,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:45:59,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-10-13 16:45:59,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:00,921 INFO L124 PetriNetUnfolderBase]: 15759/25783 cut-off events. [2024-10-13 16:46:00,921 INFO L125 PetriNetUnfolderBase]: For 14612/15690 co-relation queries the response was YES. [2024-10-13 16:46:00,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59311 conditions, 25783 events. 15759/25783 cut-off events. For 14612/15690 co-relation queries the response was YES. Maximal size of possible extension queue 1493. Compared 222062 event pairs, 3433 based on Foata normal form. 1404/25374 useless extension candidates. Maximal degree in co-relation 37778. Up to 6544 conditions per place. [2024-10-13 16:46:01,060 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 127 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-10-13 16:46:01,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 180 transitions, 839 flow [2024-10-13 16:46:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:46:01,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:46:01,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2024-10-13 16:46:01,062 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-10-13 16:46:01,062 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 276 flow. Second operand 6 states and 413 transitions. [2024-10-13 16:46:01,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 180 transitions, 839 flow [2024-10-13 16:46:01,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 180 transitions, 839 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:46:01,147 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 301 flow [2024-10-13 16:46:01,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2024-10-13 16:46:01,147 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-10-13 16:46:01,148 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 301 flow [2024-10-13 16:46:01,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:01,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:01,148 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:01,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 16:46:01,148 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:01,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:01,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1707858266, now seen corresponding path program 1 times [2024-10-13 16:46:01,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:01,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977505892] [2024-10-13 16:46:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:01,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:01,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:01,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:01,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977505892] [2024-10-13 16:46:01,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977505892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:01,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:01,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:46:01,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617314326] [2024-10-13 16:46:01,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:01,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:46:01,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:01,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:46:01,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:46:01,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-10-13 16:46:01,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:01,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:01,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-10-13 16:46:01,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:02,531 INFO L124 PetriNetUnfolderBase]: 16215/26324 cut-off events. [2024-10-13 16:46:02,531 INFO L125 PetriNetUnfolderBase]: For 24726/26909 co-relation queries the response was YES. [2024-10-13 16:46:02,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64726 conditions, 26324 events. 16215/26324 cut-off events. For 24726/26909 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 223839 event pairs, 3315 based on Foata normal form. 1544/26285 useless extension candidates. Maximal degree in co-relation 41496. Up to 11286 conditions per place. [2024-10-13 16:46:02,710 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 102 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-10-13 16:46:02,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 150 transitions, 743 flow [2024-10-13 16:46:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:46:02,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:46:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 353 transitions. [2024-10-13 16:46:02,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7204081632653061 [2024-10-13 16:46:02,711 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 301 flow. Second operand 5 states and 353 transitions. [2024-10-13 16:46:02,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 150 transitions, 743 flow [2024-10-13 16:46:02,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 150 transitions, 712 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:46:02,884 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 298 flow [2024-10-13 16:46:02,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-10-13 16:46:02,885 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-10-13 16:46:02,885 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 298 flow [2024-10-13 16:46:02,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:02,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:02,886 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:02,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 16:46:02,886 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:02,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1707859291, now seen corresponding path program 1 times [2024-10-13 16:46:02,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:02,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053091931] [2024-10-13 16:46:02,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:02,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:02,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:02,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053091931] [2024-10-13 16:46:02,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053091931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:02,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:02,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:46:02,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399675332] [2024-10-13 16:46:02,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:02,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:02,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:02,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:02,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-10-13 16:46:02,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:02,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:02,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-10-13 16:46:02,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:04,175 INFO L124 PetriNetUnfolderBase]: 13207/23946 cut-off events. [2024-10-13 16:46:04,176 INFO L125 PetriNetUnfolderBase]: For 20358/21945 co-relation queries the response was YES. [2024-10-13 16:46:04,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56054 conditions, 23946 events. 13207/23946 cut-off events. For 20358/21945 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 225087 event pairs, 6229 based on Foata normal form. 1515/23484 useless extension candidates. Maximal degree in co-relation 35715. Up to 11157 conditions per place. [2024-10-13 16:46:04,282 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 104 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2024-10-13 16:46:04,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 720 flow [2024-10-13 16:46:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-10-13 16:46:04,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-10-13 16:46:04,284 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 298 flow. Second operand 4 states and 298 transitions. [2024-10-13 16:46:04,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 720 flow [2024-10-13 16:46:04,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 150 transitions, 708 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:46:04,394 INFO L231 Difference]: Finished difference. Result has 97 places, 91 transitions, 288 flow [2024-10-13 16:46:04,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=91} [2024-10-13 16:46:04,395 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-10-13 16:46:04,395 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 91 transitions, 288 flow [2024-10-13 16:46:04,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:04,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:04,395 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:04,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 16:46:04,396 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:04,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2000035946, now seen corresponding path program 1 times [2024-10-13 16:46:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:04,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533918404] [2024-10-13 16:46:04,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:04,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:04,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533918404] [2024-10-13 16:46:04,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533918404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:04,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:04,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:46:04,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304134235] [2024-10-13 16:46:04,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:04,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:04,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:04,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:04,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:04,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-10-13 16:46:04,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 91 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:04,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:04,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-10-13 16:46:04,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:05,456 INFO L124 PetriNetUnfolderBase]: 11899/22509 cut-off events. [2024-10-13 16:46:05,456 INFO L125 PetriNetUnfolderBase]: For 16711/18012 co-relation queries the response was YES. [2024-10-13 16:46:05,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50828 conditions, 22509 events. 11899/22509 cut-off events. For 16711/18012 co-relation queries the response was YES. Maximal size of possible extension queue 1283. Compared 218586 event pairs, 3711 based on Foata normal form. 1120/21658 useless extension candidates. Maximal degree in co-relation 31540. Up to 8309 conditions per place. [2024-10-13 16:46:05,595 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 71 selfloop transitions, 4 changer transitions 0/118 dead transitions. [2024-10-13 16:46:05,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 118 transitions, 543 flow [2024-10-13 16:46:05,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:05,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-10-13 16:46:05,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-10-13 16:46:05,596 INFO L175 Difference]: Start difference. First operand has 97 places, 91 transitions, 288 flow. Second operand 4 states and 280 transitions. [2024-10-13 16:46:05,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 118 transitions, 543 flow [2024-10-13 16:46:05,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 118 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:46:05,727 INFO L231 Difference]: Finished difference. Result has 97 places, 90 transitions, 288 flow [2024-10-13 16:46:05,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=90} [2024-10-13 16:46:05,728 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-10-13 16:46:05,728 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 90 transitions, 288 flow [2024-10-13 16:46:05,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:05,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:05,728 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:05,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 16:46:05,728 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:05,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1207680655, now seen corresponding path program 1 times [2024-10-13 16:46:05,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:05,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401676452] [2024-10-13 16:46:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:05,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:05,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:05,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:05,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401676452] [2024-10-13 16:46:05,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401676452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:05,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:05,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:46:05,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827326498] [2024-10-13 16:46:05,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:05,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:05,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:05,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:05,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:05,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-10-13 16:46:05,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 90 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:05,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:05,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-10-13 16:46:05,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:07,007 INFO L124 PetriNetUnfolderBase]: 15736/26116 cut-off events. [2024-10-13 16:46:07,007 INFO L125 PetriNetUnfolderBase]: For 22760/23942 co-relation queries the response was YES. [2024-10-13 16:46:07,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61857 conditions, 26116 events. 15736/26116 cut-off events. For 22760/23942 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 228359 event pairs, 6223 based on Foata normal form. 1307/25597 useless extension candidates. Maximal degree in co-relation 38821. Up to 11469 conditions per place. [2024-10-13 16:46:07,173 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 102 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-10-13 16:46:07,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 148 transitions, 707 flow [2024-10-13 16:46:07,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:07,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-10-13 16:46:07,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-10-13 16:46:07,175 INFO L175 Difference]: Start difference. First operand has 97 places, 90 transitions, 288 flow. Second operand 4 states and 298 transitions. [2024-10-13 16:46:07,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 148 transitions, 707 flow [2024-10-13 16:46:07,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 148 transitions, 684 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:46:07,231 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 290 flow [2024-10-13 16:46:07,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-10-13 16:46:07,232 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2024-10-13 16:46:07,232 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 290 flow [2024-10-13 16:46:07,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:07,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:07,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:07,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 16:46:07,232 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:07,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:07,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1403999463, now seen corresponding path program 1 times [2024-10-13 16:46:07,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:07,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053598556] [2024-10-13 16:46:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:07,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:07,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:07,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053598556] [2024-10-13 16:46:07,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053598556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:07,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:07,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:46:07,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297596110] [2024-10-13 16:46:07,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:07,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:46:07,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:07,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:46:07,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:46:07,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-10-13 16:46:07,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:07,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:07,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-10-13 16:46:07,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:08,721 INFO L124 PetriNetUnfolderBase]: 17101/27512 cut-off events. [2024-10-13 16:46:08,722 INFO L125 PetriNetUnfolderBase]: For 26780/28706 co-relation queries the response was YES. [2024-10-13 16:46:08,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68550 conditions, 27512 events. 17101/27512 cut-off events. For 26780/28706 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 232411 event pairs, 3587 based on Foata normal form. 2288/28089 useless extension candidates. Maximal degree in co-relation 54759. Up to 6910 conditions per place. [2024-10-13 16:46:08,894 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 132 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-10-13 16:46:08,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 180 transitions, 926 flow [2024-10-13 16:46:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:46:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:46:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-10-13 16:46:08,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6972789115646258 [2024-10-13 16:46:08,896 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 290 flow. Second operand 6 states and 410 transitions. [2024-10-13 16:46:08,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 180 transitions, 926 flow [2024-10-13 16:46:09,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 180 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:46:09,012 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 311 flow [2024-10-13 16:46:09,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-10-13 16:46:09,013 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-10-13 16:46:09,013 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 311 flow [2024-10-13 16:46:09,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:09,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:09,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:09,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 16:46:09,013 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:09,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:09,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1871541198, now seen corresponding path program 1 times [2024-10-13 16:46:09,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:09,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720010960] [2024-10-13 16:46:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:09,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:09,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:09,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720010960] [2024-10-13 16:46:09,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720010960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:09,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:09,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:46:09,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41199607] [2024-10-13 16:46:09,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:09,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:09,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:09,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:09,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-10-13 16:46:09,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:09,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:09,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-10-13 16:46:09,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:10,212 INFO L124 PetriNetUnfolderBase]: 12814/23677 cut-off events. [2024-10-13 16:46:10,212 INFO L125 PetriNetUnfolderBase]: For 29371/31238 co-relation queries the response was YES. [2024-10-13 16:46:10,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57747 conditions, 23677 events. 12814/23677 cut-off events. For 29371/31238 co-relation queries the response was YES. Maximal size of possible extension queue 1300. Compared 225792 event pairs, 4044 based on Foata normal form. 2003/23697 useless extension candidates. Maximal degree in co-relation 46739. Up to 9274 conditions per place. [2024-10-13 16:46:10,366 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 76 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-10-13 16:46:10,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 597 flow [2024-10-13 16:46:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2024-10-13 16:46:10,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7040816326530612 [2024-10-13 16:46:10,367 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 311 flow. Second operand 4 states and 276 transitions. [2024-10-13 16:46:10,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 597 flow [2024-10-13 16:46:10,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 119 transitions, 575 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:46:10,487 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 302 flow [2024-10-13 16:46:10,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-10-13 16:46:10,488 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-10-13 16:46:10,488 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 302 flow [2024-10-13 16:46:10,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:10,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:10,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:10,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 16:46:10,489 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:10,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:10,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1521628256, now seen corresponding path program 1 times [2024-10-13 16:46:10,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:10,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391313810] [2024-10-13 16:46:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:10,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:10,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:10,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391313810] [2024-10-13 16:46:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391313810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:10,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:10,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:46:10,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937925034] [2024-10-13 16:46:10,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:10,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:46:10,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:10,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:46:10,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:46:10,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-10-13 16:46:10,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:10,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:10,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-10-13 16:46:10,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:12,036 INFO L124 PetriNetUnfolderBase]: 17089/27301 cut-off events. [2024-10-13 16:46:12,036 INFO L125 PetriNetUnfolderBase]: For 28108/29622 co-relation queries the response was YES. [2024-10-13 16:46:12,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70598 conditions, 27301 events. 17089/27301 cut-off events. For 28108/29622 co-relation queries the response was YES. Maximal size of possible extension queue 1506. Compared 227327 event pairs, 6748 based on Foata normal form. 1864/27553 useless extension candidates. Maximal degree in co-relation 56678. Up to 12383 conditions per place. [2024-10-13 16:46:12,179 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 166 selfloop transitions, 8 changer transitions 0/210 dead transitions. [2024-10-13 16:46:12,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 210 transitions, 1132 flow [2024-10-13 16:46:12,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:46:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:46:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-10-13 16:46:12,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7465986394557823 [2024-10-13 16:46:12,181 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 302 flow. Second operand 6 states and 439 transitions. [2024-10-13 16:46:12,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 210 transitions, 1132 flow [2024-10-13 16:46:12,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 210 transitions, 1095 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-13 16:46:12,480 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 318 flow [2024-10-13 16:46:12,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-10-13 16:46:12,481 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-10-13 16:46:12,481 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 318 flow [2024-10-13 16:46:12,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:12,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:12,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:12,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 16:46:12,481 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:12,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:12,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2111764211, now seen corresponding path program 1 times [2024-10-13 16:46:12,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:12,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047510267] [2024-10-13 16:46:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:12,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:12,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047510267] [2024-10-13 16:46:12,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047510267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:12,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:12,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:46:12,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621614266] [2024-10-13 16:46:12,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:12,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:12,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:12,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:12,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:12,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-10-13 16:46:12,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:12,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:12,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-10-13 16:46:12,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:13,777 INFO L124 PetriNetUnfolderBase]: 14303/24867 cut-off events. [2024-10-13 16:46:13,777 INFO L125 PetriNetUnfolderBase]: For 36264/38189 co-relation queries the response was YES. [2024-10-13 16:46:13,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62638 conditions, 24867 events. 14303/24867 cut-off events. For 36264/38189 co-relation queries the response was YES. Maximal size of possible extension queue 1353. Compared 225764 event pairs, 7060 based on Foata normal form. 2250/25118 useless extension candidates. Maximal degree in co-relation 50454. Up to 12508 conditions per place. [2024-10-13 16:46:13,935 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 111 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2024-10-13 16:46:13,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 152 transitions, 820 flow [2024-10-13 16:46:13,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-10-13 16:46:13,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7551020408163265 [2024-10-13 16:46:13,936 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 318 flow. Second operand 4 states and 296 transitions. [2024-10-13 16:46:13,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 152 transitions, 820 flow [2024-10-13 16:46:14,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 152 transitions, 777 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-13 16:46:14,042 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 301 flow [2024-10-13 16:46:14,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-10-13 16:46:14,043 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-10-13 16:46:14,043 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 301 flow [2024-10-13 16:46:14,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:14,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:14,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:14,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 16:46:14,043 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:14,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2111765236, now seen corresponding path program 1 times [2024-10-13 16:46:14,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:14,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681370490] [2024-10-13 16:46:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:14,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:14,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:14,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681370490] [2024-10-13 16:46:14,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681370490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:14,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:14,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:46:14,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163293146] [2024-10-13 16:46:14,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:14,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:46:14,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:14,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:46:14,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:46:14,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-10-13 16:46:14,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:14,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:14,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-10-13 16:46:14,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:15,652 INFO L124 PetriNetUnfolderBase]: 17024/26790 cut-off events. [2024-10-13 16:46:15,653 INFO L125 PetriNetUnfolderBase]: For 31927/34358 co-relation queries the response was YES. [2024-10-13 16:46:15,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68650 conditions, 26790 events. 17024/26790 cut-off events. For 31927/34358 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 218750 event pairs, 4044 based on Foata normal form. 2431/27876 useless extension candidates. Maximal degree in co-relation 55134. Up to 11413 conditions per place. [2024-10-13 16:46:15,806 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 109 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-10-13 16:46:15,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 781 flow [2024-10-13 16:46:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:46:15,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:46:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2024-10-13 16:46:15,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7163265306122449 [2024-10-13 16:46:15,807 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 301 flow. Second operand 5 states and 351 transitions. [2024-10-13 16:46:15,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 781 flow [2024-10-13 16:46:15,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 150 transitions, 775 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:46:15,905 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 305 flow [2024-10-13 16:46:15,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=305, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-10-13 16:46:15,905 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-10-13 16:46:15,906 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 305 flow [2024-10-13 16:46:15,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:15,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:15,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:15,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 16:46:15,906 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:15,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1040212079, now seen corresponding path program 1 times [2024-10-13 16:46:15,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:15,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286415568] [2024-10-13 16:46:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:15,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:15,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286415568] [2024-10-13 16:46:15,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286415568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:15,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:15,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:46:15,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586770042] [2024-10-13 16:46:15,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:15,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:46:15,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:46:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:46:15,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-10-13 16:46:15,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:15,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:15,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-10-13 16:46:15,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:17,702 INFO L124 PetriNetUnfolderBase]: 17024/26465 cut-off events. [2024-10-13 16:46:17,702 INFO L125 PetriNetUnfolderBase]: For 36152/38583 co-relation queries the response was YES. [2024-10-13 16:46:17,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68976 conditions, 26465 events. 17024/26465 cut-off events. For 36152/38583 co-relation queries the response was YES. Maximal size of possible extension queue 1420. Compared 212582 event pairs, 4044 based on Foata normal form. 3081/28201 useless extension candidates. Maximal degree in co-relation 55412. Up to 7579 conditions per place. [2024-10-13 16:46:17,865 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 137 selfloop transitions, 9 changer transitions 0/181 dead transitions. [2024-10-13 16:46:17,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 181 transitions, 975 flow [2024-10-13 16:46:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:46:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:46:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-10-13 16:46:17,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921768707482994 [2024-10-13 16:46:17,867 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 305 flow. Second operand 6 states and 407 transitions. [2024-10-13 16:46:17,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 181 transitions, 975 flow [2024-10-13 16:46:17,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 181 transitions, 966 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:46:17,978 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 321 flow [2024-10-13 16:46:17,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=321, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2024-10-13 16:46:17,978 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2024-10-13 16:46:17,978 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 321 flow [2024-10-13 16:46:17,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:17,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:17,979 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:17,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 16:46:17,979 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-13 16:46:17,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:17,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1234485486, now seen corresponding path program 1 times [2024-10-13 16:46:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:17,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232016293] [2024-10-13 16:46:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:17,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:18,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:18,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:18,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232016293] [2024-10-13 16:46:18,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232016293] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:18,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:18,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:46:18,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565865856] [2024-10-13 16:46:18,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:18,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:46:18,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:18,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:46:18,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:46:18,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-10-13 16:46:18,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:18,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:18,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-10-13 16:46:18,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:19,434 INFO L124 PetriNetUnfolderBase]: 17024/25642 cut-off events. [2024-10-13 16:46:19,434 INFO L125 PetriNetUnfolderBase]: For 38558/40942 co-relation queries the response was YES. [2024-10-13 16:46:19,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70844 conditions, 25642 events. 17024/25642 cut-off events. For 38558/40942 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 197539 event pairs, 7060 based on Foata normal form. 2709/27651 useless extension candidates. Maximal degree in co-relation 56947. Up to 12833 conditions per place. [2024-10-13 16:46:19,537 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 0 selfloop transitions, 0 changer transitions 213/213 dead transitions. [2024-10-13 16:46:19,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 213 transitions, 1187 flow [2024-10-13 16:46:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:46:19,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:46:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions. [2024-10-13 16:46:19,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7397959183673469 [2024-10-13 16:46:19,539 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 321 flow. Second operand 6 states and 435 transitions. [2024-10-13 16:46:19,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 213 transitions, 1187 flow [2024-10-13 16:46:19,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 213 transitions, 1169 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-13 16:46:19,835 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2024-10-13 16:46:19,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2024-10-13 16:46:19,836 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-10-13 16:46:19,836 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2024-10-13 16:46:19,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:19,838 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-10-13 16:46:19,839 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-10-13 16:46:19,839 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-10-13 16:46:19,839 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-10-13 16:46:19,839 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-10-13 16:46:19,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-10-13 16:46:19,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-10-13 16:46:19,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-10-13 16:46:19,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-10-13 16:46:19,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-10-13 16:46:19,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-10-13 16:46:19,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-10-13 16:46:19,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-10-13 16:46:19,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-10-13 16:46:19,843 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-10-13 16:46:19,844 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-10-13 16:46:19,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 16:46:19,844 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] [2024-10-13 16:46:19,848 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 16:46:19,848 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 16:46:19,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:46:19 BasicIcfg [2024-10-13 16:46:19,855 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 16:46:19,855 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:46:19,856 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:46:19,856 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:46:19,856 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:45:44" (3/4) ... [2024-10-13 16:46:19,857 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 16:46:19,859 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 16:46:19,859 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 16:46:19,859 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-13 16:46:19,866 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-10-13 16:46:19,866 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-13 16:46:19,867 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 16:46:19,867 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 16:46:19,926 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:46:19,927 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 16:46:19,927 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:46:19,927 INFO L158 Benchmark]: Toolchain (without parser) took 35965.84ms. Allocated memory was 138.4MB in the beginning and 5.7GB in the end (delta: 5.6GB). Free memory was 67.8MB in the beginning and 2.4GB in the end (delta: -2.4GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2024-10-13 16:46:19,928 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 138.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:46:19,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.50ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 67.5MB in the beginning and 148.9MB in the end (delta: -81.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-10-13 16:46:19,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.47ms. Allocated memory is still 180.4MB. Free memory was 148.9MB in the beginning and 147.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:46:19,928 INFO L158 Benchmark]: Boogie Preprocessor took 45.78ms. Allocated memory is still 180.4MB. Free memory was 147.0MB in the beginning and 143.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:46:19,928 INFO L158 Benchmark]: RCFGBuilder took 621.00ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 87.2MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-10-13 16:46:19,929 INFO L158 Benchmark]: TraceAbstraction took 34914.63ms. Allocated memory was 180.4MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 87.2MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2024-10-13 16:46:19,929 INFO L158 Benchmark]: Witness Printer took 71.58ms. Allocated memory is still 5.7GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 16:46:19,930 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 138.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.50ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 67.5MB in the beginning and 148.9MB in the end (delta: -81.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.47ms. Allocated memory is still 180.4MB. Free memory was 148.9MB in the beginning and 147.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.78ms. Allocated memory is still 180.4MB. Free memory was 147.0MB in the beginning and 143.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 621.00ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 87.2MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 34914.63ms. Allocated memory was 180.4MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 87.2MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * Witness Printer took 71.58ms. Allocated memory is still 5.7GB. Free memory was 2.4GB in the beginning and 2.4GB 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: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: 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 7 procedures, 159 locations, 39 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: 34.8s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2269 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1934 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4500 IncrementalHoareTripleChecker+Invalid, 4605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 77 mSDtfsCounter, 4500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 16:46:19,952 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