./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:50:02,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:50:02,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:50:02,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:50:02,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:50:02,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:50:02,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:50:02,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:50:02,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:50:02,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:50:02,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:50:02,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:50:02,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:50:02,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:50:02,313 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:50:02,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:50:02,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:50:02,314 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:50:02,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:50:02,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:50:02,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:50:02,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:50:02,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:50:02,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:50:02,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:50:02,320 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:50:02,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:50:02,321 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:50:02,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:50:02,321 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:50:02,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:50:02,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:50:02,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:50:02,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:50:02,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:50:02,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:50:02,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:50:02,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:50:02,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:50:02,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:50:02,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:50:02,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:50:02,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:50:02,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:50:02,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-23 01:50:02,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:50:02,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:50:02,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:50:02,678 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:50:02,678 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:50:02,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-23 01:50:04,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:50:04,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:50:04,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-23 01:50:04,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/423988be7/e680931d5fda4f419a0661167fa8213a/FLAGd27cc74ce [2024-11-23 01:50:04,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/423988be7/e680931d5fda4f419a0661167fa8213a [2024-11-23 01:50:04,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:50:04,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:50:04,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:50:04,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:50:04,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:50:04,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:04" (1/1) ... [2024-11-23 01:50:04,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620239ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04, skipping insertion in model container [2024-11-23 01:50:04,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:04" (1/1) ... [2024-11-23 01:50:04,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:50:04,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:50:04,980 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:50:05,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:50:05,087 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:50:05,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05 WrapperNode [2024-11-23 01:50:05,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:50:05,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:50:05,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:50:05,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:50:05,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,161 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 155 [2024-11-23 01:50:05,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:50:05,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:50:05,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:50:05,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:50:05,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,206 INFO L175 MemorySlicer]: Split 66 memory accesses to 1 slices as follows [66]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 3 writes are split as follows [3]. [2024-11-23 01:50:05,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:50:05,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:50:05,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:50:05,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:50:05,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (1/1) ... [2024-11-23 01:50:05,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:50:05,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:05,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 01:50:05,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 01:50:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 01:50:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 01:50:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 01:50:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 01:50:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:50:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 01:50:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 01:50:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:50:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:50:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:50:05,365 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:50:05,523 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:50:05,524 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:50:05,776 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:50:05,776 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:50:06,082 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:50:06,082 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-23 01:50:06,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:06 BoogieIcfgContainer [2024-11-23 01:50:06,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:50:06,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:50:06,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:50:06,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:50:06,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:50:04" (1/3) ... [2024-11-23 01:50:06,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e2a47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:06, skipping insertion in model container [2024-11-23 01:50:06,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:05" (2/3) ... [2024-11-23 01:50:06,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e2a47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:06, skipping insertion in model container [2024-11-23 01:50:06,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:06" (3/3) ... [2024-11-23 01:50:06,093 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-23 01:50:06,113 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:50:06,115 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-23 01:50:06,115 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:50:06,165 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 01:50:06,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 98 flow [2024-11-23 01:50:06,244 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-23 01:50:06,244 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:06,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 3/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-23 01:50:06,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 47 transitions, 98 flow [2024-11-23 01:50:06,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 46 transitions, 95 flow [2024-11-23 01:50:06,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:50:06,278 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;@3dce4584, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:50:06,280 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-23 01:50:06,286 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:50:06,286 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-23 01:50:06,287 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:06,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:06,288 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-23 01:50:06,289 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:06,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:06,296 INFO L85 PathProgramCache]: Analyzing trace with hash 406437, now seen corresponding path program 1 times [2024-11-23 01:50:06,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:06,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33093711] [2024-11-23 01:50:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:06,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:06,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:06,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33093711] [2024-11-23 01:50:06,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33093711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:06,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:06,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:50:06,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275732657] [2024-11-23 01:50:06,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:06,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:50:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:50:06,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:50:06,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:06,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:06,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:06,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:06,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:06,953 INFO L124 PetriNetUnfolderBase]: 128/386 cut-off events. [2024-11-23 01:50:06,953 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:06,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 386 events. 128/386 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2038 event pairs, 104 based on Foata normal form. 1/317 useless extension candidates. Maximal degree in co-relation 627. Up to 260 conditions per place. [2024-11-23 01:50:06,962 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 29 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-23 01:50:06,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 163 flow [2024-11-23 01:50:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:50:06,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:50:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-23 01:50:06,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478723404255319 [2024-11-23 01:50:06,976 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 95 flow. Second operand 4 states and 103 transitions. [2024-11-23 01:50:06,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 163 flow [2024-11-23 01:50:06,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:06,981 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 118 flow [2024-11-23 01:50:06,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-23 01:50:06,987 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2024-11-23 01:50:06,987 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 118 flow [2024-11-23 01:50:06,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:06,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:06,988 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-23 01:50:06,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:50:06,989 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:06,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:06,989 INFO L85 PathProgramCache]: Analyzing trace with hash -776355770, now seen corresponding path program 1 times [2024-11-23 01:50:06,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:06,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266967197] [2024-11-23 01:50:06,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:06,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:07,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:07,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266967197] [2024-11-23 01:50:07,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266967197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:07,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611699753] [2024-11-23 01:50:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:07,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:07,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:07,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:50:07,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 01:50:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:07,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:50:07,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:07,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:50:07,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611699753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:07,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:50:07,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 01:50:07,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638633502] [2024-11-23 01:50:07,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:07,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:50:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:07,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:50:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:07,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:07,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:07,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:07,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:07,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:07,502 INFO L124 PetriNetUnfolderBase]: 128/385 cut-off events. [2024-11-23 01:50:07,503 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 01:50:07,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 385 events. 128/385 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2026 event pairs, 104 based on Foata normal form. 1/316 useless extension candidates. Maximal degree in co-relation 644. Up to 255 conditions per place. [2024-11-23 01:50:07,508 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 25 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2024-11-23 01:50:07,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 176 flow [2024-11-23 01:50:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:50:07,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:50:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-11-23 01:50:07,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2024-11-23 01:50:07,514 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 118 flow. Second operand 6 states and 134 transitions. [2024-11-23 01:50:07,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 176 flow [2024-11-23 01:50:07,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:07,516 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 124 flow [2024-11-23 01:50:07,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2024-11-23 01:50:07,519 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2024-11-23 01:50:07,519 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 124 flow [2024-11-23 01:50:07,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:07,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:07,520 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-23 01:50:07,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 01:50:07,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:07,721 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:07,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:07,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1702775290, now seen corresponding path program 1 times [2024-11-23 01:50:07,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:07,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447430542] [2024-11-23 01:50:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:07,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 01:50:07,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:07,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447430542] [2024-11-23 01:50:07,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447430542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:07,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:07,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:50:07,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976370170] [2024-11-23 01:50:07,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:07,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:50:07,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:07,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:50:07,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:50:07,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:07,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:07,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:07,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:07,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:07,874 INFO L124 PetriNetUnfolderBase]: 128/384 cut-off events. [2024-11-23 01:50:07,875 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-23 01:50:07,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 384 events. 128/384 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2023 event pairs, 104 based on Foata normal form. 1/316 useless extension candidates. Maximal degree in co-relation 640. Up to 258 conditions per place. [2024-11-23 01:50:07,878 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 26 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2024-11-23 01:50:07,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 180 flow [2024-11-23 01:50:07,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:50:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:50:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-23 01:50:07,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2024-11-23 01:50:07,880 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 124 flow. Second operand 3 states and 80 transitions. [2024-11-23 01:50:07,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 180 flow [2024-11-23 01:50:07,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 158 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-23 01:50:07,881 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 106 flow [2024-11-23 01:50:07,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2024-11-23 01:50:07,885 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2024-11-23 01:50:07,885 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 106 flow [2024-11-23 01:50:07,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:07,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:07,885 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:07,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 01:50:07,886 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:07,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:07,886 INFO L85 PathProgramCache]: Analyzing trace with hash -92986018, now seen corresponding path program 1 times [2024-11-23 01:50:07,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:07,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164597886] [2024-11-23 01:50:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:07,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:07,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:07,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:07,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164597886] [2024-11-23 01:50:07,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164597886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:07,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909395633] [2024-11-23 01:50:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:07,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:07,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:07,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:50:07,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 01:50:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:08,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 01:50:08,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:08,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:50:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:08,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909395633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:50:08,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:50:08,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-23 01:50:08,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300291390] [2024-11-23 01:50:08,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:50:08,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:08,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:08,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:08,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:50:08,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:08,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 106 flow. Second operand has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:08,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:08,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:08,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:08,252 INFO L124 PetriNetUnfolderBase]: 128/388 cut-off events. [2024-11-23 01:50:08,252 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-23 01:50:08,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 388 events. 128/388 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2020 event pairs, 104 based on Foata normal form. 2/322 useless extension candidates. Maximal degree in co-relation 633. Up to 256 conditions per place. [2024-11-23 01:50:08,255 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 26 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2024-11-23 01:50:08,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 187 flow [2024-11-23 01:50:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:50:08,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 01:50:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2024-11-23 01:50:08,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2024-11-23 01:50:08,259 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 106 flow. Second operand 7 states and 154 transitions. [2024-11-23 01:50:08,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 187 flow [2024-11-23 01:50:08,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:08,260 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 132 flow [2024-11-23 01:50:08,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2024-11-23 01:50:08,263 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-11-23 01:50:08,263 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 132 flow [2024-11-23 01:50:08,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:08,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:08,264 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:08,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 01:50:08,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-23 01:50:08,465 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:08,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1115452862, now seen corresponding path program 2 times [2024-11-23 01:50:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:08,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798948373] [2024-11-23 01:50:08,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:08,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:08,486 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:08,486 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 01:50:08,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:08,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798948373] [2024-11-23 01:50:08,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798948373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:08,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:08,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 01:50:08,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208378060] [2024-11-23 01:50:08,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:08,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:50:08,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:08,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:50:08,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:50:08,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:08,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:08,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:08,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:08,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:08,941 INFO L124 PetriNetUnfolderBase]: 235/591 cut-off events. [2024-11-23 01:50:08,941 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-23 01:50:08,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 591 events. 235/591 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3044 event pairs, 26 based on Foata normal form. 27/544 useless extension candidates. Maximal degree in co-relation 1058. Up to 341 conditions per place. [2024-11-23 01:50:08,945 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 92 selfloop transitions, 14 changer transitions 0/120 dead transitions. [2024-11-23 01:50:08,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 486 flow [2024-11-23 01:50:08,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:50:08,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:50:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 244 transitions. [2024-11-23 01:50:08,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648936170212766 [2024-11-23 01:50:08,951 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 132 flow. Second operand 8 states and 244 transitions. [2024-11-23 01:50:08,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 486 flow [2024-11-23 01:50:08,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 120 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:08,953 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 234 flow [2024-11-23 01:50:08,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=234, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-11-23 01:50:08,956 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2024-11-23 01:50:08,956 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 234 flow [2024-11-23 01:50:08,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:08,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:08,957 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:08,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 01:50:08,958 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:08,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:08,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1082013421, now seen corresponding path program 1 times [2024-11-23 01:50:08,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:08,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656137551] [2024-11-23 01:50:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:08,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 01:50:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:09,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656137551] [2024-11-23 01:50:09,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656137551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:09,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:09,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:50:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418402429] [2024-11-23 01:50:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:09,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:50:09,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:50:09,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:50:09,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:09,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:09,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:09,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:09,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:09,136 INFO L124 PetriNetUnfolderBase]: 229/645 cut-off events. [2024-11-23 01:50:09,137 INFO L125 PetriNetUnfolderBase]: For 255/255 co-relation queries the response was YES. [2024-11-23 01:50:09,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 645 events. 229/645 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3518 event pairs, 54 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 1370. Up to 296 conditions per place. [2024-11-23 01:50:09,141 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 62 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-11-23 01:50:09,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 412 flow [2024-11-23 01:50:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:50:09,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:50:09,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-23 01:50:09,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-23 01:50:09,142 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 234 flow. Second operand 3 states and 102 transitions. [2024-11-23 01:50:09,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 412 flow [2024-11-23 01:50:09,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 80 transitions, 408 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:09,146 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 220 flow [2024-11-23 01:50:09,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-23 01:50:09,147 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-11-23 01:50:09,147 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 220 flow [2024-11-23 01:50:09,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:09,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:09,147 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:09,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 01:50:09,148 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:09,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1081981441, now seen corresponding path program 1 times [2024-11-23 01:50:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:09,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172513224] [2024-11-23 01:50:09,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:09,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:09,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:09,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172513224] [2024-11-23 01:50:09,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172513224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:09,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796896985] [2024-11-23 01:50:09,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:09,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:09,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:09,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:50:09,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 01:50:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 01:50:09,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:09,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:50:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:09,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796896985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:50:09,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:50:09,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-23 01:50:09,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352806938] [2024-11-23 01:50:09,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:50:09,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 01:50:09,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:09,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 01:50:09,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-23 01:50:09,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:09,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 220 flow. Second operand has 18 states, 18 states have (on average 18.333333333333332) internal successors, (330), 18 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:09,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:09,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:09,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:09,759 INFO L124 PetriNetUnfolderBase]: 229/667 cut-off events. [2024-11-23 01:50:09,760 INFO L125 PetriNetUnfolderBase]: For 287/289 co-relation queries the response was YES. [2024-11-23 01:50:09,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 667 events. 229/667 cut-off events. For 287/289 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3610 event pairs, 128 based on Foata normal form. 4/602 useless extension candidates. Maximal degree in co-relation 1443. Up to 456 conditions per place. [2024-11-23 01:50:09,764 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 37 selfloop transitions, 15 changer transitions 0/68 dead transitions. [2024-11-23 01:50:09,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 68 transitions, 372 flow [2024-11-23 01:50:09,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 01:50:09,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-23 01:50:09,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 300 transitions. [2024-11-23 01:50:09,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2024-11-23 01:50:09,766 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 220 flow. Second operand 15 states and 300 transitions. [2024-11-23 01:50:09,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 68 transitions, 372 flow [2024-11-23 01:50:09,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 68 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:09,772 INFO L231 Difference]: Finished difference. Result has 84 places, 68 transitions, 315 flow [2024-11-23 01:50:09,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=315, PETRI_PLACES=84, PETRI_TRANSITIONS=68} [2024-11-23 01:50:09,773 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 37 predicate places. [2024-11-23 01:50:09,773 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 68 transitions, 315 flow [2024-11-23 01:50:09,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 18.333333333333332) internal successors, (330), 18 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:09,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:09,774 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:09,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 01:50:09,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:09,975 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:09,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash -925826367, now seen corresponding path program 2 times [2024-11-23 01:50:09,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:09,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107942668] [2024-11-23 01:50:09,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:09,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:09,991 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:09,992 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-23 01:50:10,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:10,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107942668] [2024-11-23 01:50:10,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107942668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:10,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:10,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 01:50:10,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843042402] [2024-11-23 01:50:10,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:10,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:50:10,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:10,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:50:10,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:50:10,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:10,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 68 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:10,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:10,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:10,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:10,388 INFO L124 PetriNetUnfolderBase]: 273/738 cut-off events. [2024-11-23 01:50:10,388 INFO L125 PetriNetUnfolderBase]: For 334/334 co-relation queries the response was YES. [2024-11-23 01:50:10,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 738 events. 273/738 cut-off events. For 334/334 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4039 event pairs, 91 based on Foata normal form. 26/696 useless extension candidates. Maximal degree in co-relation 1614. Up to 492 conditions per place. [2024-11-23 01:50:10,393 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 70 selfloop transitions, 13 changer transitions 0/97 dead transitions. [2024-11-23 01:50:10,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 97 transitions, 596 flow [2024-11-23 01:50:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:50:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 01:50:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2024-11-23 01:50:10,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5683890577507599 [2024-11-23 01:50:10,395 INFO L175 Difference]: Start difference. First operand has 84 places, 68 transitions, 315 flow. Second operand 7 states and 187 transitions. [2024-11-23 01:50:10,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 97 transitions, 596 flow [2024-11-23 01:50:10,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 586 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:10,399 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 391 flow [2024-11-23 01:50:10,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=391, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-11-23 01:50:10,400 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 44 predicate places. [2024-11-23 01:50:10,400 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 391 flow [2024-11-23 01:50:10,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:10,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:10,400 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:10,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 01:50:10,401 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:10,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:10,401 INFO L85 PathProgramCache]: Analyzing trace with hash 534099002, now seen corresponding path program 1 times [2024-11-23 01:50:10,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:10,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342122385] [2024-11-23 01:50:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:10,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-23 01:50:10,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:10,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342122385] [2024-11-23 01:50:10,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342122385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:10,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:10,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:50:10,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401684111] [2024-11-23 01:50:10,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:10,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:50:10,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:10,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:50:10,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:50:10,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:10,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:10,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:10,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:10,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:10,630 INFO L124 PetriNetUnfolderBase]: 257/684 cut-off events. [2024-11-23 01:50:10,631 INFO L125 PetriNetUnfolderBase]: For 477/479 co-relation queries the response was YES. [2024-11-23 01:50:10,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1810 conditions, 684 events. 257/684 cut-off events. For 477/479 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3552 event pairs, 66 based on Foata normal form. 22/664 useless extension candidates. Maximal degree in co-relation 1703. Up to 344 conditions per place. [2024-11-23 01:50:10,636 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 86 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2024-11-23 01:50:10,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 675 flow [2024-11-23 01:50:10,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:50:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:50:10,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-23 01:50:10,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2024-11-23 01:50:10,637 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 391 flow. Second operand 4 states and 125 transitions. [2024-11-23 01:50:10,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 104 transitions, 675 flow [2024-11-23 01:50:10,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 666 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:10,642 INFO L231 Difference]: Finished difference. Result has 95 places, 76 transitions, 403 flow [2024-11-23 01:50:10,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=403, PETRI_PLACES=95, PETRI_TRANSITIONS=76} [2024-11-23 01:50:10,644 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 48 predicate places. [2024-11-23 01:50:10,644 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 76 transitions, 403 flow [2024-11-23 01:50:10,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:10,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:10,644 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:10,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 01:50:10,644 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:10,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:10,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1215821249, now seen corresponding path program 1 times [2024-11-23 01:50:10,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:10,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683400203] [2024-11-23 01:50:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:10,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-23 01:50:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683400203] [2024-11-23 01:50:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683400203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:10,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:10,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:50:10,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080416358] [2024-11-23 01:50:10,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:10,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:50:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:10,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:50:10,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:50:10,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:10,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 76 transitions, 403 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:10,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:10,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:10,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:10,965 INFO L124 PetriNetUnfolderBase]: 413/1102 cut-off events. [2024-11-23 01:50:10,965 INFO L125 PetriNetUnfolderBase]: For 935/969 co-relation queries the response was YES. [2024-11-23 01:50:10,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 1102 events. 413/1102 cut-off events. For 935/969 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 6209 event pairs, 208 based on Foata normal form. 24/1064 useless extension candidates. Maximal degree in co-relation 2768. Up to 504 conditions per place. [2024-11-23 01:50:10,973 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 102 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-23 01:50:10,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 120 transitions, 802 flow [2024-11-23 01:50:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:50:10,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:50:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-23 01:50:10,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2024-11-23 01:50:10,975 INFO L175 Difference]: Start difference. First operand has 95 places, 76 transitions, 403 flow. Second operand 4 states and 136 transitions. [2024-11-23 01:50:10,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 120 transitions, 802 flow [2024-11-23 01:50:10,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 120 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:10,980 INFO L231 Difference]: Finished difference. Result has 98 places, 78 transitions, 424 flow [2024-11-23 01:50:10,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=98, PETRI_TRANSITIONS=78} [2024-11-23 01:50:10,981 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 51 predicate places. [2024-11-23 01:50:10,981 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 78 transitions, 424 flow [2024-11-23 01:50:10,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:10,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:10,981 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:10,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 01:50:10,981 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:10,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:10,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1997218629, now seen corresponding path program 1 times [2024-11-23 01:50:10,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:10,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128261134] [2024-11-23 01:50:10,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:10,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:11,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:11,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128261134] [2024-11-23 01:50:11,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128261134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335550059] [2024-11-23 01:50:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:11,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:11,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:11,300 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:50:11,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 01:50:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:11,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 01:50:11,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:11,467 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:11,467 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:50:11,667 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:11,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335550059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:50:11,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:50:11,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-23 01:50:11,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676295253] [2024-11-23 01:50:11,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:50:11,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 01:50:11,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:11,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 01:50:11,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-23 01:50:11,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-23 01:50:11,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 78 transitions, 424 flow. Second operand has 23 states, 23 states have (on average 18.52173913043478) internal successors, (426), 23 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:11,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:11,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-23 01:50:11,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:12,031 INFO L124 PetriNetUnfolderBase]: 369/1055 cut-off events. [2024-11-23 01:50:12,032 INFO L125 PetriNetUnfolderBase]: For 1045/1071 co-relation queries the response was YES. [2024-11-23 01:50:12,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2897 conditions, 1055 events. 369/1055 cut-off events. For 1045/1071 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6078 event pairs, 234 based on Foata normal form. 3/1038 useless extension candidates. Maximal degree in co-relation 2750. Up to 734 conditions per place. [2024-11-23 01:50:12,041 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 47 selfloop transitions, 21 changer transitions 0/84 dead transitions. [2024-11-23 01:50:12,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 84 transitions, 614 flow [2024-11-23 01:50:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 01:50:12,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-23 01:50:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 407 transitions. [2024-11-23 01:50:12,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41236068895643363 [2024-11-23 01:50:12,044 INFO L175 Difference]: Start difference. First operand has 98 places, 78 transitions, 424 flow. Second operand 21 states and 407 transitions. [2024-11-23 01:50:12,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 84 transitions, 614 flow [2024-11-23 01:50:12,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 84 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:12,051 INFO L231 Difference]: Finished difference. Result has 120 places, 84 transitions, 532 flow [2024-11-23 01:50:12,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=532, PETRI_PLACES=120, PETRI_TRANSITIONS=84} [2024-11-23 01:50:12,052 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 73 predicate places. [2024-11-23 01:50:12,052 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 84 transitions, 532 flow [2024-11-23 01:50:12,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 18.52173913043478) internal successors, (426), 23 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:12,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:12,054 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:12,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 01:50:12,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:12,255 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:12,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:12,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1386995060, now seen corresponding path program 1 times [2024-11-23 01:50:12,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:12,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594399653] [2024-11-23 01:50:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:12,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:12,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:12,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594399653] [2024-11-23 01:50:12,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594399653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:12,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:12,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:50:12,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887388376] [2024-11-23 01:50:12,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:12,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:12,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:12,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:12,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:12,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:12,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 84 transitions, 532 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:12,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:12,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:12,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:13,175 INFO L124 PetriNetUnfolderBase]: 496/1391 cut-off events. [2024-11-23 01:50:13,175 INFO L125 PetriNetUnfolderBase]: For 1356/1375 co-relation queries the response was YES. [2024-11-23 01:50:13,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3920 conditions, 1391 events. 496/1391 cut-off events. For 1356/1375 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 8596 event pairs, 213 based on Foata normal form. 14/1389 useless extension candidates. Maximal degree in co-relation 3745. Up to 511 conditions per place. [2024-11-23 01:50:13,186 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 144 selfloop transitions, 22 changer transitions 0/182 dead transitions. [2024-11-23 01:50:13,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 182 transitions, 1351 flow [2024-11-23 01:50:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:50:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:50:13,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 242 transitions. [2024-11-23 01:50:13,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436170212765957 [2024-11-23 01:50:13,188 INFO L175 Difference]: Start difference. First operand has 120 places, 84 transitions, 532 flow. Second operand 8 states and 242 transitions. [2024-11-23 01:50:13,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 182 transitions, 1351 flow [2024-11-23 01:50:13,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 182 transitions, 1308 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-23 01:50:13,199 INFO L231 Difference]: Finished difference. Result has 119 places, 103 transitions, 698 flow [2024-11-23 01:50:13,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=698, PETRI_PLACES=119, PETRI_TRANSITIONS=103} [2024-11-23 01:50:13,201 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 72 predicate places. [2024-11-23 01:50:13,201 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 103 transitions, 698 flow [2024-11-23 01:50:13,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:13,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:13,201 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:13,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 01:50:13,201 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:13,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:13,202 INFO L85 PathProgramCache]: Analyzing trace with hash 543010746, now seen corresponding path program 2 times [2024-11-23 01:50:13,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:13,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744294944] [2024-11-23 01:50:13,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:13,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:13,220 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:13,221 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:13,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:13,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744294944] [2024-11-23 01:50:13,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744294944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:13,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:13,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:50:13,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244119373] [2024-11-23 01:50:13,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:13,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:13,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:13,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:13,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:13,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:13,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 103 transitions, 698 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:13,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:13,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:13,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:13,993 INFO L124 PetriNetUnfolderBase]: 555/1523 cut-off events. [2024-11-23 01:50:13,994 INFO L125 PetriNetUnfolderBase]: For 2684/2721 co-relation queries the response was YES. [2024-11-23 01:50:14,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5110 conditions, 1523 events. 555/1523 cut-off events. For 2684/2721 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 9623 event pairs, 141 based on Foata normal form. 11/1509 useless extension candidates. Maximal degree in co-relation 4950. Up to 435 conditions per place. [2024-11-23 01:50:14,009 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 149 selfloop transitions, 27 changer transitions 0/192 dead transitions. [2024-11-23 01:50:14,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 192 transitions, 1570 flow [2024-11-23 01:50:14,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:50:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:50:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2024-11-23 01:50:14,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2024-11-23 01:50:14,011 INFO L175 Difference]: Start difference. First operand has 119 places, 103 transitions, 698 flow. Second operand 8 states and 240 transitions. [2024-11-23 01:50:14,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 192 transitions, 1570 flow [2024-11-23 01:50:14,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 192 transitions, 1553 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:14,060 INFO L231 Difference]: Finished difference. Result has 129 places, 115 transitions, 885 flow [2024-11-23 01:50:14,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=885, PETRI_PLACES=129, PETRI_TRANSITIONS=115} [2024-11-23 01:50:14,062 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 82 predicate places. [2024-11-23 01:50:14,062 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 115 transitions, 885 flow [2024-11-23 01:50:14,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:14,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:14,063 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:14,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 01:50:14,063 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:14,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:14,064 INFO L85 PathProgramCache]: Analyzing trace with hash 305723236, now seen corresponding path program 3 times [2024-11-23 01:50:14,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:14,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214505631] [2024-11-23 01:50:14,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:50:14,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:14,089 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:50:14,093 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:14,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:14,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214505631] [2024-11-23 01:50:14,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214505631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:14,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:14,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:14,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547112853] [2024-11-23 01:50:14,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:14,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:50:14,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:14,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:50:14,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:50:14,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:14,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 115 transitions, 885 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:14,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:14,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:14,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:14,903 INFO L124 PetriNetUnfolderBase]: 650/1797 cut-off events. [2024-11-23 01:50:14,903 INFO L125 PetriNetUnfolderBase]: For 4883/4926 co-relation queries the response was YES. [2024-11-23 01:50:14,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 1797 events. 650/1797 cut-off events. For 4883/4926 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12014 event pairs, 99 based on Foata normal form. 7/1784 useless extension candidates. Maximal degree in co-relation 6549. Up to 526 conditions per place. [2024-11-23 01:50:14,922 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 154 selfloop transitions, 68 changer transitions 0/238 dead transitions. [2024-11-23 01:50:14,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 238 transitions, 2219 flow [2024-11-23 01:50:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 01:50:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 01:50:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 334 transitions. [2024-11-23 01:50:14,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5921985815602837 [2024-11-23 01:50:14,925 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 885 flow. Second operand 12 states and 334 transitions. [2024-11-23 01:50:14,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 238 transitions, 2219 flow [2024-11-23 01:50:14,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 238 transitions, 2196 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:14,946 INFO L231 Difference]: Finished difference. Result has 145 places, 159 transitions, 1498 flow [2024-11-23 01:50:14,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1498, PETRI_PLACES=145, PETRI_TRANSITIONS=159} [2024-11-23 01:50:14,947 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 98 predicate places. [2024-11-23 01:50:14,947 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 159 transitions, 1498 flow [2024-11-23 01:50:14,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:14,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:14,947 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:14,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 01:50:14,948 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:14,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:14,948 INFO L85 PathProgramCache]: Analyzing trace with hash 956818980, now seen corresponding path program 4 times [2024-11-23 01:50:14,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:14,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741189062] [2024-11-23 01:50:14,948 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:50:14,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:14,976 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:50:14,979 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:15,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:15,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741189062] [2024-11-23 01:50:15,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741189062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:15,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:15,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:15,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227278581] [2024-11-23 01:50:15,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:15,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:15,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:15,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:15,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:15,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 159 transitions, 1498 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:15,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:15,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:15,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:15,832 INFO L124 PetriNetUnfolderBase]: 670/1855 cut-off events. [2024-11-23 01:50:15,832 INFO L125 PetriNetUnfolderBase]: For 7543/7609 co-relation queries the response was YES. [2024-11-23 01:50:15,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7838 conditions, 1855 events. 670/1855 cut-off events. For 7543/7609 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 12597 event pairs, 84 based on Foata normal form. 22/1854 useless extension candidates. Maximal degree in co-relation 7665. Up to 445 conditions per place. [2024-11-23 01:50:15,854 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 192 selfloop transitions, 71 changer transitions 0/279 dead transitions. [2024-11-23 01:50:15,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 279 transitions, 2962 flow [2024-11-23 01:50:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:50:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 01:50:15,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2024-11-23 01:50:15,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-23 01:50:15,856 INFO L175 Difference]: Start difference. First operand has 145 places, 159 transitions, 1498 flow. Second operand 10 states and 310 transitions. [2024-11-23 01:50:15,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 279 transitions, 2962 flow [2024-11-23 01:50:15,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 279 transitions, 2875 flow, removed 31 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:15,933 INFO L231 Difference]: Finished difference. Result has 158 places, 179 transitions, 1936 flow [2024-11-23 01:50:15,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1454, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1936, PETRI_PLACES=158, PETRI_TRANSITIONS=179} [2024-11-23 01:50:15,934 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 111 predicate places. [2024-11-23 01:50:15,934 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 179 transitions, 1936 flow [2024-11-23 01:50:15,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:15,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:15,934 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:15,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 01:50:15,935 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:15,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2139292348, now seen corresponding path program 2 times [2024-11-23 01:50:15,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:15,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475230623] [2024-11-23 01:50:15,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:15,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:15,954 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:15,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:16,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:16,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475230623] [2024-11-23 01:50:16,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475230623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:16,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:16,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:50:16,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555250245] [2024-11-23 01:50:16,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:16,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:16,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:16,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:16,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:16,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:16,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 179 transitions, 1936 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:16,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:16,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:16,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:16,734 INFO L124 PetriNetUnfolderBase]: 670/1890 cut-off events. [2024-11-23 01:50:16,734 INFO L125 PetriNetUnfolderBase]: For 10160/10211 co-relation queries the response was YES. [2024-11-23 01:50:16,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8446 conditions, 1890 events. 670/1890 cut-off events. For 10160/10211 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 12937 event pairs, 262 based on Foata normal form. 9/1873 useless extension candidates. Maximal degree in co-relation 8267. Up to 620 conditions per place. [2024-11-23 01:50:16,757 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 200 selfloop transitions, 47 changer transitions 0/263 dead transitions. [2024-11-23 01:50:16,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 263 transitions, 3192 flow [2024-11-23 01:50:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:50:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:50:16,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 236 transitions. [2024-11-23 01:50:16,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2024-11-23 01:50:16,759 INFO L175 Difference]: Start difference. First operand has 158 places, 179 transitions, 1936 flow. Second operand 8 states and 236 transitions. [2024-11-23 01:50:16,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 263 transitions, 3192 flow [2024-11-23 01:50:16,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 263 transitions, 3045 flow, removed 32 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:16,793 INFO L231 Difference]: Finished difference. Result has 168 places, 199 transitions, 2287 flow [2024-11-23 01:50:16,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1821, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2287, PETRI_PLACES=168, PETRI_TRANSITIONS=199} [2024-11-23 01:50:16,793 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 121 predicate places. [2024-11-23 01:50:16,794 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 199 transitions, 2287 flow [2024-11-23 01:50:16,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:16,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:16,794 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:16,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 01:50:16,795 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:16,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:16,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1934160356, now seen corresponding path program 3 times [2024-11-23 01:50:16,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:16,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892741018] [2024-11-23 01:50:16,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:50:16,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:16,810 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:50:16,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:17,008 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:17,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:17,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892741018] [2024-11-23 01:50:17,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892741018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:17,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:17,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:50:17,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753240582] [2024-11-23 01:50:17,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:17,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:17,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:17,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:17,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:17,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:17,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 199 transitions, 2287 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:17,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:17,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:17,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:17,545 INFO L124 PetriNetUnfolderBase]: 667/1890 cut-off events. [2024-11-23 01:50:17,545 INFO L125 PetriNetUnfolderBase]: For 10644/10698 co-relation queries the response was YES. [2024-11-23 01:50:17,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8525 conditions, 1890 events. 667/1890 cut-off events. For 10644/10698 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12946 event pairs, 224 based on Foata normal form. 14/1874 useless extension candidates. Maximal degree in co-relation 8340. Up to 694 conditions per place. [2024-11-23 01:50:17,573 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 189 selfloop transitions, 66 changer transitions 0/271 dead transitions. [2024-11-23 01:50:17,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 271 transitions, 3425 flow [2024-11-23 01:50:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:50:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:50:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 232 transitions. [2024-11-23 01:50:17,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6170212765957447 [2024-11-23 01:50:17,575 INFO L175 Difference]: Start difference. First operand has 168 places, 199 transitions, 2287 flow. Second operand 8 states and 232 transitions. [2024-11-23 01:50:17,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 271 transitions, 3425 flow [2024-11-23 01:50:17,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 271 transitions, 3345 flow, removed 30 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:17,617 INFO L231 Difference]: Finished difference. Result has 176 places, 214 transitions, 2668 flow [2024-11-23 01:50:17,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2214, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2668, PETRI_PLACES=176, PETRI_TRANSITIONS=214} [2024-11-23 01:50:17,618 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 129 predicate places. [2024-11-23 01:50:17,618 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 214 transitions, 2668 flow [2024-11-23 01:50:17,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:17,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:17,620 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:17,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 01:50:17,620 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:17,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:17,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1202480660, now seen corresponding path program 5 times [2024-11-23 01:50:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049314667] [2024-11-23 01:50:17,621 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 01:50:17,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:17,691 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 01:50:17,692 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-23 01:50:18,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049314667] [2024-11-23 01:50:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049314667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697326445] [2024-11-23 01:50:18,194 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 01:50:18,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:18,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:18,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:50:18,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 01:50:18,331 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 01:50:18,332 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:18,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 01:50:18,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:18,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-23 01:50:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:18,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:50:18,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697326445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:18,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:50:18,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 15 [2024-11-23 01:50:18,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533302024] [2024-11-23 01:50:18,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:18,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:18,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:18,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:18,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-23 01:50:18,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:18,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 214 transitions, 2668 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:18,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:18,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:18,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:19,178 INFO L124 PetriNetUnfolderBase]: 709/1979 cut-off events. [2024-11-23 01:50:19,178 INFO L125 PetriNetUnfolderBase]: For 13149/13213 co-relation queries the response was YES. [2024-11-23 01:50:19,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9318 conditions, 1979 events. 709/1979 cut-off events. For 13149/13213 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 13725 event pairs, 220 based on Foata normal form. 18/1962 useless extension candidates. Maximal degree in co-relation 9130. Up to 632 conditions per place. [2024-11-23 01:50:19,205 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 243 selfloop transitions, 54 changer transitions 0/313 dead transitions. [2024-11-23 01:50:19,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 313 transitions, 4104 flow [2024-11-23 01:50:19,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:50:19,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 01:50:19,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2024-11-23 01:50:19,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6425531914893617 [2024-11-23 01:50:19,206 INFO L175 Difference]: Start difference. First operand has 176 places, 214 transitions, 2668 flow. Second operand 10 states and 302 transitions. [2024-11-23 01:50:19,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 313 transitions, 4104 flow [2024-11-23 01:50:19,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 313 transitions, 3981 flow, removed 25 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:19,253 INFO L231 Difference]: Finished difference. Result has 188 places, 236 transitions, 3118 flow [2024-11-23 01:50:19,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2556, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3118, PETRI_PLACES=188, PETRI_TRANSITIONS=236} [2024-11-23 01:50:19,254 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 141 predicate places. [2024-11-23 01:50:19,254 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 236 transitions, 3118 flow [2024-11-23 01:50:19,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:19,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:19,255 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:19,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 01:50:19,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-23 01:50:19,455 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:19,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:19,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1228683616, now seen corresponding path program 4 times [2024-11-23 01:50:19,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:19,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249082639] [2024-11-23 01:50:19,456 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:50:19,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:19,481 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:50:19,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:19,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:19,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249082639] [2024-11-23 01:50:19,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249082639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:19,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:19,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:50:19,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230323405] [2024-11-23 01:50:19,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:19,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:50:19,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:19,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:50:19,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 01:50:19,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:19,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 236 transitions, 3118 flow. Second operand has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:19,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:19,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:19,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:20,333 INFO L124 PetriNetUnfolderBase]: 676/1905 cut-off events. [2024-11-23 01:50:20,333 INFO L125 PetriNetUnfolderBase]: For 13315/13375 co-relation queries the response was YES. [2024-11-23 01:50:20,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9016 conditions, 1905 events. 676/1905 cut-off events. For 13315/13375 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13061 event pairs, 257 based on Foata normal form. 15/1885 useless extension candidates. Maximal degree in co-relation 8822. Up to 675 conditions per place. [2024-11-23 01:50:20,360 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 212 selfloop transitions, 55 changer transitions 0/283 dead transitions. [2024-11-23 01:50:20,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 283 transitions, 3971 flow [2024-11-23 01:50:20,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:50:20,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 01:50:20,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 220 transitions. [2024-11-23 01:50:20,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.668693009118541 [2024-11-23 01:50:20,361 INFO L175 Difference]: Start difference. First operand has 188 places, 236 transitions, 3118 flow. Second operand 7 states and 220 transitions. [2024-11-23 01:50:20,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 283 transitions, 3971 flow [2024-11-23 01:50:20,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 283 transitions, 3824 flow, removed 48 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:20,419 INFO L231 Difference]: Finished difference. Result has 193 places, 239 transitions, 3187 flow [2024-11-23 01:50:20,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=2905, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3187, PETRI_PLACES=193, PETRI_TRANSITIONS=239} [2024-11-23 01:50:20,420 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 146 predicate places. [2024-11-23 01:50:20,420 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 239 transitions, 3187 flow [2024-11-23 01:50:20,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:20,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:20,421 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:20,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 01:50:20,421 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:20,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:20,422 INFO L85 PathProgramCache]: Analyzing trace with hash -356642490, now seen corresponding path program 5 times [2024-11-23 01:50:20,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:20,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740853017] [2024-11-23 01:50:20,422 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 01:50:20,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:20,448 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 01:50:20,448 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-23 01:50:20,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:20,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740853017] [2024-11-23 01:50:20,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740853017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:20,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19379806] [2024-11-23 01:50:20,838 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 01:50:20,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:20,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:20,840 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:50:20,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 01:50:20,974 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 01:50:20,974 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:20,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 01:50:20,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:21,317 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-23 01:50:21,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2024-11-23 01:50:21,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-23 01:50:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:21,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:50:21,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19379806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:21,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:50:21,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-23 01:50:21,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65537865] [2024-11-23 01:50:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:21,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:50:21,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:21,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:50:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-23 01:50:21,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:50:21,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 239 transitions, 3187 flow. Second operand has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:21,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:21,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:50:21,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:22,372 INFO L124 PetriNetUnfolderBase]: 1302/3122 cut-off events. [2024-11-23 01:50:22,373 INFO L125 PetriNetUnfolderBase]: For 20506/20514 co-relation queries the response was YES. [2024-11-23 01:50:22,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14594 conditions, 3122 events. 1302/3122 cut-off events. For 20506/20514 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 21947 event pairs, 366 based on Foata normal form. 44/3126 useless extension candidates. Maximal degree in co-relation 14399. Up to 1832 conditions per place. [2024-11-23 01:50:22,419 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 327 selfloop transitions, 70 changer transitions 0/408 dead transitions. [2024-11-23 01:50:22,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 408 transitions, 6119 flow [2024-11-23 01:50:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 01:50:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 01:50:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 320 transitions. [2024-11-23 01:50:22,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48632218844984804 [2024-11-23 01:50:22,420 INFO L175 Difference]: Start difference. First operand has 193 places, 239 transitions, 3187 flow. Second operand 14 states and 320 transitions. [2024-11-23 01:50:22,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 408 transitions, 6119 flow [2024-11-23 01:50:22,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 408 transitions, 5961 flow, removed 31 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:22,512 INFO L231 Difference]: Finished difference. Result has 210 places, 279 transitions, 3852 flow [2024-11-23 01:50:22,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3084, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3852, PETRI_PLACES=210, PETRI_TRANSITIONS=279} [2024-11-23 01:50:22,513 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 163 predicate places. [2024-11-23 01:50:22,513 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 279 transitions, 3852 flow [2024-11-23 01:50:22,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:22,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:22,514 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:22,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 01:50:22,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:22,715 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:22,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:22,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1997363504, now seen corresponding path program 6 times [2024-11-23 01:50:22,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:22,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173902087] [2024-11-23 01:50:22,715 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 01:50:22,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:22,730 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 01:50:22,731 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:22,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:22,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173902087] [2024-11-23 01:50:22,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173902087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:22,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:22,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:50:22,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920524372] [2024-11-23 01:50:22,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:22,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:22,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:22,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:22,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:22,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 279 transitions, 3852 flow. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:22,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:22,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:22,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:23,558 INFO L124 PetriNetUnfolderBase]: 768/2142 cut-off events. [2024-11-23 01:50:23,558 INFO L125 PetriNetUnfolderBase]: For 16742/16885 co-relation queries the response was YES. [2024-11-23 01:50:23,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11088 conditions, 2142 events. 768/2142 cut-off events. For 16742/16885 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 15194 event pairs, 207 based on Foata normal form. 25/2135 useless extension candidates. Maximal degree in co-relation 10885. Up to 754 conditions per place. [2024-11-23 01:50:23,590 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 278 selfloop transitions, 53 changer transitions 0/350 dead transitions. [2024-11-23 01:50:23,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 350 transitions, 5181 flow [2024-11-23 01:50:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:50:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:50:23,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 236 transitions. [2024-11-23 01:50:23,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2024-11-23 01:50:23,591 INFO L175 Difference]: Start difference. First operand has 210 places, 279 transitions, 3852 flow. Second operand 8 states and 236 transitions. [2024-11-23 01:50:23,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 350 transitions, 5181 flow [2024-11-23 01:50:23,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 350 transitions, 5046 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:23,676 INFO L231 Difference]: Finished difference. Result has 216 places, 283 transitions, 3975 flow [2024-11-23 01:50:23,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3716, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3975, PETRI_PLACES=216, PETRI_TRANSITIONS=283} [2024-11-23 01:50:23,677 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 169 predicate places. [2024-11-23 01:50:23,677 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 283 transitions, 3975 flow [2024-11-23 01:50:23,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:23,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:23,677 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:23,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 01:50:23,678 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:23,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:23,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1407949940, now seen corresponding path program 6 times [2024-11-23 01:50:23,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:23,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340192943] [2024-11-23 01:50:23,679 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 01:50:23,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:23,692 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 01:50:23,692 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:23,918 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:23,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:23,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340192943] [2024-11-23 01:50:23,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340192943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:23,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:23,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:23,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209458783] [2024-11-23 01:50:23,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:23,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:50:23,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:23,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:50:23,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:50:23,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:23,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 283 transitions, 3975 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:23,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:23,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:23,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:24,595 INFO L124 PetriNetUnfolderBase]: 786/2203 cut-off events. [2024-11-23 01:50:24,596 INFO L125 PetriNetUnfolderBase]: For 17813/17960 co-relation queries the response was YES. [2024-11-23 01:50:24,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11479 conditions, 2203 events. 786/2203 cut-off events. For 17813/17960 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 15776 event pairs, 130 based on Foata normal form. 35/2208 useless extension candidates. Maximal degree in co-relation 11272. Up to 669 conditions per place. [2024-11-23 01:50:24,622 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 259 selfloop transitions, 108 changer transitions 0/386 dead transitions. [2024-11-23 01:50:24,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 386 transitions, 5680 flow [2024-11-23 01:50:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:50:24,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:50:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 363 transitions. [2024-11-23 01:50:24,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5941080196399345 [2024-11-23 01:50:24,623 INFO L175 Difference]: Start difference. First operand has 216 places, 283 transitions, 3975 flow. Second operand 13 states and 363 transitions. [2024-11-23 01:50:24,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 386 transitions, 5680 flow [2024-11-23 01:50:24,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 386 transitions, 5578 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:24,720 INFO L231 Difference]: Finished difference. Result has 228 places, 302 transitions, 4502 flow [2024-11-23 01:50:24,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3874, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4502, PETRI_PLACES=228, PETRI_TRANSITIONS=302} [2024-11-23 01:50:24,720 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 181 predicate places. [2024-11-23 01:50:24,721 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 302 transitions, 4502 flow [2024-11-23 01:50:24,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:24,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:24,721 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:24,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 01:50:24,721 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:24,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:24,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1212362494, now seen corresponding path program 7 times [2024-11-23 01:50:24,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:24,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442299225] [2024-11-23 01:50:24,722 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 01:50:24,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:25,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:25,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442299225] [2024-11-23 01:50:25,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442299225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:25,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:25,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:25,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786328814] [2024-11-23 01:50:25,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:25,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:50:25,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:25,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:50:25,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:50:25,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:25,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 302 transitions, 4502 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:25,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:25,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:25,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:25,862 INFO L124 PetriNetUnfolderBase]: 754/2116 cut-off events. [2024-11-23 01:50:25,862 INFO L125 PetriNetUnfolderBase]: For 19568/19705 co-relation queries the response was YES. [2024-11-23 01:50:25,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11434 conditions, 2116 events. 754/2116 cut-off events. For 19568/19705 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 14954 event pairs, 136 based on Foata normal form. 34/2120 useless extension candidates. Maximal degree in co-relation 11223. Up to 586 conditions per place. [2024-11-23 01:50:25,891 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 211 selfloop transitions, 133 changer transitions 0/363 dead transitions. [2024-11-23 01:50:25,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 363 transitions, 5586 flow [2024-11-23 01:50:25,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 01:50:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 01:50:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 334 transitions. [2024-11-23 01:50:25,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5921985815602837 [2024-11-23 01:50:25,893 INFO L175 Difference]: Start difference. First operand has 228 places, 302 transitions, 4502 flow. Second operand 12 states and 334 transitions. [2024-11-23 01:50:25,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 363 transitions, 5586 flow [2024-11-23 01:50:25,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 363 transitions, 5306 flow, removed 63 selfloop flow, removed 5 redundant places. [2024-11-23 01:50:25,997 INFO L231 Difference]: Finished difference. Result has 234 places, 299 transitions, 4438 flow [2024-11-23 01:50:25,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4172, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4438, PETRI_PLACES=234, PETRI_TRANSITIONS=299} [2024-11-23 01:50:25,998 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 187 predicate places. [2024-11-23 01:50:25,998 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 299 transitions, 4438 flow [2024-11-23 01:50:25,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:25,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:25,998 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:25,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 01:50:25,999 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:25,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1021730618, now seen corresponding path program 8 times [2024-11-23 01:50:25,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:25,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3432613] [2024-11-23 01:50:25,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:26,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:26,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:26,013 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:26,203 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:26,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:26,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3432613] [2024-11-23 01:50:26,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3432613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:26,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:26,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:26,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477206934] [2024-11-23 01:50:26,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:26,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:50:26,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:26,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:50:26,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:50:26,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-23 01:50:26,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 299 transitions, 4438 flow. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:26,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:26,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-23 01:50:26,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:26,818 INFO L124 PetriNetUnfolderBase]: 675/1930 cut-off events. [2024-11-23 01:50:26,818 INFO L125 PetriNetUnfolderBase]: For 17830/17955 co-relation queries the response was YES. [2024-11-23 01:50:26,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10353 conditions, 1930 events. 675/1930 cut-off events. For 17830/17955 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 13381 event pairs, 135 based on Foata normal form. 31/1933 useless extension candidates. Maximal degree in co-relation 10207. Up to 557 conditions per place. [2024-11-23 01:50:26,843 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 221 selfloop transitions, 107 changer transitions 0/346 dead transitions. [2024-11-23 01:50:26,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 346 transitions, 5400 flow [2024-11-23 01:50:26,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 01:50:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 01:50:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 318 transitions. [2024-11-23 01:50:26,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6150870406189555 [2024-11-23 01:50:26,845 INFO L175 Difference]: Start difference. First operand has 234 places, 299 transitions, 4438 flow. Second operand 11 states and 318 transitions. [2024-11-23 01:50:26,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 346 transitions, 5400 flow [2024-11-23 01:50:26,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 346 transitions, 5084 flow, removed 43 selfloop flow, removed 12 redundant places. [2024-11-23 01:50:26,927 INFO L231 Difference]: Finished difference. Result has 230 places, 289 transitions, 4336 flow [2024-11-23 01:50:26,928 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4007, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4336, PETRI_PLACES=230, PETRI_TRANSITIONS=289} [2024-11-23 01:50:26,928 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 183 predicate places. [2024-11-23 01:50:26,928 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 289 transitions, 4336 flow [2024-11-23 01:50:26,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:26,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:26,929 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:26,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 01:50:26,929 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:26,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash 290994524, now seen corresponding path program 1 times [2024-11-23 01:50:26,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:26,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894634131] [2024-11-23 01:50:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:27,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:27,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894634131] [2024-11-23 01:50:27,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894634131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:27,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:27,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:27,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659630799] [2024-11-23 01:50:27,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:27,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:27,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:27,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:27,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:27,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-23 01:50:27,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 289 transitions, 4336 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:27,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:27,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-23 01:50:27,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:28,392 INFO L124 PetriNetUnfolderBase]: 1198/2924 cut-off events. [2024-11-23 01:50:28,393 INFO L125 PetriNetUnfolderBase]: For 25500/25510 co-relation queries the response was YES. [2024-11-23 01:50:28,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14899 conditions, 2924 events. 1198/2924 cut-off events. For 25500/25510 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 20999 event pairs, 473 based on Foata normal form. 45/2933 useless extension candidates. Maximal degree in co-relation 14696. Up to 1795 conditions per place. [2024-11-23 01:50:28,432 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 366 selfloop transitions, 54 changer transitions 0/433 dead transitions. [2024-11-23 01:50:28,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 433 transitions, 6914 flow [2024-11-23 01:50:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:50:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:50:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 323 transitions. [2024-11-23 01:50:28,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5286415711947627 [2024-11-23 01:50:28,434 INFO L175 Difference]: Start difference. First operand has 230 places, 289 transitions, 4336 flow. Second operand 13 states and 323 transitions. [2024-11-23 01:50:28,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 433 transitions, 6914 flow [2024-11-23 01:50:28,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 433 transitions, 6738 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:28,537 INFO L231 Difference]: Finished difference. Result has 245 places, 316 transitions, 4714 flow [2024-11-23 01:50:28,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4213, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4714, PETRI_PLACES=245, PETRI_TRANSITIONS=316} [2024-11-23 01:50:28,538 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 198 predicate places. [2024-11-23 01:50:28,538 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 316 transitions, 4714 flow [2024-11-23 01:50:28,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:28,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:28,538 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:28,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 01:50:28,539 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:28,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:28,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1801319780, now seen corresponding path program 1 times [2024-11-23 01:50:28,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:28,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251237335] [2024-11-23 01:50:28,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:28,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:28,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251237335] [2024-11-23 01:50:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251237335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:28,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:28,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:28,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976242732] [2024-11-23 01:50:28,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:28,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:28,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:28,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:28,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:28,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:50:28,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 316 transitions, 4714 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:28,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:28,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:50:28,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:30,264 INFO L124 PetriNetUnfolderBase]: 1460/3431 cut-off events. [2024-11-23 01:50:30,265 INFO L125 PetriNetUnfolderBase]: For 31046/31075 co-relation queries the response was YES. [2024-11-23 01:50:30,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18455 conditions, 3431 events. 1460/3431 cut-off events. For 31046/31075 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24402 event pairs, 608 based on Foata normal form. 25/3409 useless extension candidates. Maximal degree in co-relation 18245. Up to 1172 conditions per place. [2024-11-23 01:50:30,304 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 348 selfloop transitions, 121 changer transitions 0/480 dead transitions. [2024-11-23 01:50:30,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 480 transitions, 7250 flow [2024-11-23 01:50:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 01:50:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 01:50:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 425 transitions. [2024-11-23 01:50:30,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5023640661938534 [2024-11-23 01:50:30,306 INFO L175 Difference]: Start difference. First operand has 245 places, 316 transitions, 4714 flow. Second operand 18 states and 425 transitions. [2024-11-23 01:50:30,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 480 transitions, 7250 flow [2024-11-23 01:50:30,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 480 transitions, 7214 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-23 01:50:30,450 INFO L231 Difference]: Finished difference. Result has 274 places, 359 transitions, 5731 flow [2024-11-23 01:50:30,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=4690, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5731, PETRI_PLACES=274, PETRI_TRANSITIONS=359} [2024-11-23 01:50:30,451 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 227 predicate places. [2024-11-23 01:50:30,451 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 359 transitions, 5731 flow [2024-11-23 01:50:30,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:30,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:30,452 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:30,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 01:50:30,452 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:30,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:30,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1609474506, now seen corresponding path program 2 times [2024-11-23 01:50:30,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:30,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81756754] [2024-11-23 01:50:30,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:30,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:30,470 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:30,470 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:30,721 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:30,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:30,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81756754] [2024-11-23 01:50:30,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81756754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:30,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:30,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:30,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755397285] [2024-11-23 01:50:30,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:30,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:30,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:30,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:30,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:30,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-23 01:50:30,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 359 transitions, 5731 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:30,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:30,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-23 01:50:30,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:31,797 INFO L124 PetriNetUnfolderBase]: 1427/3394 cut-off events. [2024-11-23 01:50:31,797 INFO L125 PetriNetUnfolderBase]: For 44395/44411 co-relation queries the response was YES. [2024-11-23 01:50:31,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20817 conditions, 3394 events. 1427/3394 cut-off events. For 44395/44411 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 24945 event pairs, 507 based on Foata normal form. 41/3391 useless extension candidates. Maximal degree in co-relation 20593. Up to 2221 conditions per place. [2024-11-23 01:50:31,834 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 423 selfloop transitions, 61 changer transitions 0/498 dead transitions. [2024-11-23 01:50:31,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 498 transitions, 8507 flow [2024-11-23 01:50:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:50:31,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:50:31,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 322 transitions. [2024-11-23 01:50:31,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5270049099836334 [2024-11-23 01:50:31,835 INFO L175 Difference]: Start difference. First operand has 274 places, 359 transitions, 5731 flow. Second operand 13 states and 322 transitions. [2024-11-23 01:50:31,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 498 transitions, 8507 flow [2024-11-23 01:50:31,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 498 transitions, 8309 flow, removed 46 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:32,000 INFO L231 Difference]: Finished difference. Result has 290 places, 379 transitions, 6092 flow [2024-11-23 01:50:32,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=5561, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6092, PETRI_PLACES=290, PETRI_TRANSITIONS=379} [2024-11-23 01:50:32,001 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 243 predicate places. [2024-11-23 01:50:32,001 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 379 transitions, 6092 flow [2024-11-23 01:50:32,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:32,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:32,001 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:32,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 01:50:32,001 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:32,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1377208784, now seen corresponding path program 3 times [2024-11-23 01:50:32,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989128181] [2024-11-23 01:50:32,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:50:32,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:32,015 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:50:32,015 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:32,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989128181] [2024-11-23 01:50:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989128181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:32,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:32,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:32,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810094512] [2024-11-23 01:50:32,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:32,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:32,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-23 01:50:32,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 379 transitions, 6092 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:32,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:32,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-23 01:50:32,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:33,294 INFO L124 PetriNetUnfolderBase]: 1603/3767 cut-off events. [2024-11-23 01:50:33,294 INFO L125 PetriNetUnfolderBase]: For 58077/58095 co-relation queries the response was YES. [2024-11-23 01:50:33,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24475 conditions, 3767 events. 1603/3767 cut-off events. For 58077/58095 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 28286 event pairs, 509 based on Foata normal form. 52/3765 useless extension candidates. Maximal degree in co-relation 24243. Up to 2423 conditions per place. [2024-11-23 01:50:33,342 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 451 selfloop transitions, 57 changer transitions 0/522 dead transitions. [2024-11-23 01:50:33,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 522 transitions, 9032 flow [2024-11-23 01:50:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:50:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:50:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 325 transitions. [2024-11-23 01:50:33,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5319148936170213 [2024-11-23 01:50:33,344 INFO L175 Difference]: Start difference. First operand has 290 places, 379 transitions, 6092 flow. Second operand 13 states and 325 transitions. [2024-11-23 01:50:33,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 522 transitions, 9032 flow [2024-11-23 01:50:33,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 522 transitions, 8952 flow, removed 37 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:33,541 INFO L231 Difference]: Finished difference. Result has 308 places, 397 transitions, 6561 flow [2024-11-23 01:50:33,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6024, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6561, PETRI_PLACES=308, PETRI_TRANSITIONS=397} [2024-11-23 01:50:33,541 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 261 predicate places. [2024-11-23 01:50:33,542 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 397 transitions, 6561 flow [2024-11-23 01:50:33,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:33,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:33,542 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:33,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 01:50:33,542 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:33,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:33,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2004397200, now seen corresponding path program 2 times [2024-11-23 01:50:33,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:33,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442933189] [2024-11-23 01:50:33,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:33,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:33,555 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:33,555 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:33,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:33,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442933189] [2024-11-23 01:50:33,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442933189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:33,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:33,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:33,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220497570] [2024-11-23 01:50:33,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:33,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:33,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:33,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:33,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:33,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:50:33,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 397 transitions, 6561 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:33,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:33,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:50:33,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:35,234 INFO L124 PetriNetUnfolderBase]: 1940/4402 cut-off events. [2024-11-23 01:50:35,234 INFO L125 PetriNetUnfolderBase]: For 75352/75388 co-relation queries the response was YES. [2024-11-23 01:50:35,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29789 conditions, 4402 events. 1940/4402 cut-off events. For 75352/75388 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32596 event pairs, 795 based on Foata normal form. 25/4371 useless extension candidates. Maximal degree in co-relation 29549. Up to 1847 conditions per place. [2024-11-23 01:50:35,292 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 445 selfloop transitions, 104 changer transitions 0/560 dead transitions. [2024-11-23 01:50:35,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 560 transitions, 9813 flow [2024-11-23 01:50:35,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 01:50:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 01:50:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 424 transitions. [2024-11-23 01:50:35,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5011820330969267 [2024-11-23 01:50:35,297 INFO L175 Difference]: Start difference. First operand has 308 places, 397 transitions, 6561 flow. Second operand 18 states and 424 transitions. [2024-11-23 01:50:35,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 560 transitions, 9813 flow [2024-11-23 01:50:35,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 560 transitions, 9688 flow, removed 52 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:35,577 INFO L231 Difference]: Finished difference. Result has 333 places, 435 transitions, 7455 flow [2024-11-23 01:50:35,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6452, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7455, PETRI_PLACES=333, PETRI_TRANSITIONS=435} [2024-11-23 01:50:35,578 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 286 predicate places. [2024-11-23 01:50:35,578 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 435 transitions, 7455 flow [2024-11-23 01:50:35,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:35,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:35,578 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:35,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 01:50:35,578 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:35,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:35,579 INFO L85 PathProgramCache]: Analyzing trace with hash -696113194, now seen corresponding path program 3 times [2024-11-23 01:50:35,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:35,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880804347] [2024-11-23 01:50:35,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:50:35,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:35,591 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:50:35,591 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:35,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:35,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880804347] [2024-11-23 01:50:35,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880804347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:35,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:35,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:35,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510362580] [2024-11-23 01:50:35,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:35,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:35,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:35,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:35,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:35,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-23 01:50:35,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 435 transitions, 7455 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:35,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:35,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-23 01:50:35,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:37,408 INFO L124 PetriNetUnfolderBase]: 1875/4357 cut-off events. [2024-11-23 01:50:37,409 INFO L125 PetriNetUnfolderBase]: For 97315/97345 co-relation queries the response was YES. [2024-11-23 01:50:37,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32201 conditions, 4357 events. 1875/4357 cut-off events. For 97315/97345 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 33606 event pairs, 609 based on Foata normal form. 33/4329 useless extension candidates. Maximal degree in co-relation 31950. Up to 2972 conditions per place. [2024-11-23 01:50:37,478 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 464 selfloop transitions, 83 changer transitions 0/563 dead transitions. [2024-11-23 01:50:37,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 563 transitions, 10408 flow [2024-11-23 01:50:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:50:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:50:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 305 transitions. [2024-11-23 01:50:37,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49918166939443537 [2024-11-23 01:50:37,480 INFO L175 Difference]: Start difference. First operand has 333 places, 435 transitions, 7455 flow. Second operand 13 states and 305 transitions. [2024-11-23 01:50:37,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 563 transitions, 10408 flow [2024-11-23 01:50:37,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 563 transitions, 10117 flow, removed 91 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:37,916 INFO L231 Difference]: Finished difference. Result has 350 places, 470 transitions, 8130 flow [2024-11-23 01:50:37,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=7179, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8130, PETRI_PLACES=350, PETRI_TRANSITIONS=470} [2024-11-23 01:50:37,917 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 303 predicate places. [2024-11-23 01:50:37,917 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 470 transitions, 8130 flow [2024-11-23 01:50:37,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:37,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:37,918 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:37,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 01:50:37,918 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:37,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash -757643850, now seen corresponding path program 4 times [2024-11-23 01:50:37,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:37,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581742424] [2024-11-23 01:50:37,919 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:50:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:37,935 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:50:37,936 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:38,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:38,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581742424] [2024-11-23 01:50:38,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581742424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:38,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:38,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631869238] [2024-11-23 01:50:38,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:38,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:38,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:38,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:38,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:38,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-23 01:50:38,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 470 transitions, 8130 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:38,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:38,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-23 01:50:38,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:39,764 INFO L124 PetriNetUnfolderBase]: 1963/4536 cut-off events. [2024-11-23 01:50:39,764 INFO L125 PetriNetUnfolderBase]: For 116096/116127 co-relation queries the response was YES. [2024-11-23 01:50:39,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34865 conditions, 4536 events. 1963/4536 cut-off events. For 116096/116127 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 35269 event pairs, 670 based on Foata normal form. 33/4508 useless extension candidates. Maximal degree in co-relation 34606. Up to 3198 conditions per place. [2024-11-23 01:50:39,815 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 493 selfloop transitions, 87 changer transitions 0/596 dead transitions. [2024-11-23 01:50:39,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 596 transitions, 11233 flow [2024-11-23 01:50:39,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 01:50:39,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 01:50:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 331 transitions. [2024-11-23 01:50:39,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5030395136778115 [2024-11-23 01:50:39,817 INFO L175 Difference]: Start difference. First operand has 350 places, 470 transitions, 8130 flow. Second operand 14 states and 331 transitions. [2024-11-23 01:50:39,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 596 transitions, 11233 flow [2024-11-23 01:50:40,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 596 transitions, 11017 flow, removed 74 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:40,396 INFO L231 Difference]: Finished difference. Result has 366 places, 496 transitions, 8841 flow [2024-11-23 01:50:40,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=7935, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8841, PETRI_PLACES=366, PETRI_TRANSITIONS=496} [2024-11-23 01:50:40,397 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 319 predicate places. [2024-11-23 01:50:40,397 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 496 transitions, 8841 flow [2024-11-23 01:50:40,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:40,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:40,398 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:40,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 01:50:40,398 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:40,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1968490890, now seen corresponding path program 4 times [2024-11-23 01:50:40,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:40,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512114111] [2024-11-23 01:50:40,399 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:50:40,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:40,415 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:50:40,416 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:40,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:40,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512114111] [2024-11-23 01:50:40,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512114111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:40,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:40,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:40,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038629899] [2024-11-23 01:50:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:40,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:40,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:40,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:40,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:50:40,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 496 transitions, 8841 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:40,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:40,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:50:40,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:42,737 INFO L124 PetriNetUnfolderBase]: 2399/5334 cut-off events. [2024-11-23 01:50:42,737 INFO L125 PetriNetUnfolderBase]: For 150110/150158 co-relation queries the response was YES. [2024-11-23 01:50:42,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42069 conditions, 5334 events. 2399/5334 cut-off events. For 150110/150158 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 41082 event pairs, 872 based on Foata normal form. 55/5336 useless extension candidates. Maximal degree in co-relation 41803. Up to 1941 conditions per place. [2024-11-23 01:50:42,803 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 558 selfloop transitions, 153 changer transitions 0/726 dead transitions. [2024-11-23 01:50:42,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 726 transitions, 13859 flow [2024-11-23 01:50:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 01:50:42,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-23 01:50:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 461 transitions. [2024-11-23 01:50:42,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5162374020156775 [2024-11-23 01:50:42,804 INFO L175 Difference]: Start difference. First operand has 366 places, 496 transitions, 8841 flow. Second operand 19 states and 461 transitions. [2024-11-23 01:50:42,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 726 transitions, 13859 flow [2024-11-23 01:50:43,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 726 transitions, 13551 flow, removed 137 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:43,374 INFO L231 Difference]: Finished difference. Result has 390 places, 540 transitions, 9999 flow [2024-11-23 01:50:43,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=8633, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9999, PETRI_PLACES=390, PETRI_TRANSITIONS=540} [2024-11-23 01:50:43,375 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 343 predicate places. [2024-11-23 01:50:43,375 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 540 transitions, 9999 flow [2024-11-23 01:50:43,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:43,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:43,375 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:43,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 01:50:43,376 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:43,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash 685936984, now seen corresponding path program 5 times [2024-11-23 01:50:43,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:43,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083201208] [2024-11-23 01:50:43,376 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 01:50:43,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:43,409 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 01:50:43,410 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:44,012 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-23 01:50:44,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:44,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083201208] [2024-11-23 01:50:44,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083201208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:44,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948875798] [2024-11-23 01:50:44,013 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 01:50:44,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:44,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:44,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:50:44,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 01:50:44,160 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 01:50:44,160 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:44,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 01:50:44,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:44,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 01:50:44,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-23 01:50:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:44,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:50:44,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948875798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:44,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:50:44,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 18 [2024-11-23 01:50:44,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453476995] [2024-11-23 01:50:44,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:44,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:44,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:44,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-23 01:50:44,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:50:44,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 540 transitions, 9999 flow. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:44,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:44,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:50:44,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:46,518 INFO L124 PetriNetUnfolderBase]: 2521/5552 cut-off events. [2024-11-23 01:50:46,518 INFO L125 PetriNetUnfolderBase]: For 187339/187438 co-relation queries the response was YES. [2024-11-23 01:50:46,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47180 conditions, 5552 events. 2521/5552 cut-off events. For 187339/187438 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 42854 event pairs, 904 based on Foata normal form. 47/5545 useless extension candidates. Maximal degree in co-relation 46904. Up to 2251 conditions per place. [2024-11-23 01:50:46,606 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 507 selfloop transitions, 218 changer transitions 0/740 dead transitions. [2024-11-23 01:50:46,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 740 transitions, 14832 flow [2024-11-23 01:50:46,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 01:50:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 01:50:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 421 transitions. [2024-11-23 01:50:46,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49763593380614657 [2024-11-23 01:50:46,608 INFO L175 Difference]: Start difference. First operand has 390 places, 540 transitions, 9999 flow. Second operand 18 states and 421 transitions. [2024-11-23 01:50:46,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 740 transitions, 14832 flow [2024-11-23 01:50:47,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 740 transitions, 14603 flow, removed 85 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:47,536 INFO L231 Difference]: Finished difference. Result has 417 places, 603 transitions, 11906 flow [2024-11-23 01:50:47,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=9796, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11906, PETRI_PLACES=417, PETRI_TRANSITIONS=603} [2024-11-23 01:50:47,537 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 370 predicate places. [2024-11-23 01:50:47,537 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 603 transitions, 11906 flow [2024-11-23 01:50:47,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 10 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:47,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:47,537 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:47,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 01:50:47,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:47,738 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:47,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash 509382200, now seen corresponding path program 5 times [2024-11-23 01:50:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140444013] [2024-11-23 01:50:47,739 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 01:50:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:47,764 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-23 01:50:47,764 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:48,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:48,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140444013] [2024-11-23 01:50:48,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140444013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:48,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:48,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:48,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482174525] [2024-11-23 01:50:48,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:48,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:48,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:48,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:48,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2024-11-23 01:50:48,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 603 transitions, 11906 flow. Second operand has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 11 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:48,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:48,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2024-11-23 01:50:48,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:50,999 INFO L124 PetriNetUnfolderBase]: 2982/6417 cut-off events. [2024-11-23 01:50:50,999 INFO L125 PetriNetUnfolderBase]: For 242305/242351 co-relation queries the response was YES. [2024-11-23 01:50:51,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56800 conditions, 6417 events. 2982/6417 cut-off events. For 242305/242351 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 49684 event pairs, 1070 based on Foata normal form. 23/6368 useless extension candidates. Maximal degree in co-relation 56511. Up to 2400 conditions per place. [2024-11-23 01:50:51,106 INFO L140 encePairwiseOnDemand]: 32/47 looper letters, 545 selfloop transitions, 248 changer transitions 0/803 dead transitions. [2024-11-23 01:50:51,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 803 transitions, 17251 flow [2024-11-23 01:50:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 01:50:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 01:50:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 405 transitions. [2024-11-23 01:50:51,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4787234042553192 [2024-11-23 01:50:51,108 INFO L175 Difference]: Start difference. First operand has 417 places, 603 transitions, 11906 flow. Second operand 18 states and 405 transitions. [2024-11-23 01:50:51,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 803 transitions, 17251 flow [2024-11-23 01:50:52,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 803 transitions, 16961 flow, removed 131 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:52,296 INFO L231 Difference]: Finished difference. Result has 445 places, 671 transitions, 14242 flow [2024-11-23 01:50:52,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=11668, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14242, PETRI_PLACES=445, PETRI_TRANSITIONS=671} [2024-11-23 01:50:52,297 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 398 predicate places. [2024-11-23 01:50:52,297 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 671 transitions, 14242 flow [2024-11-23 01:50:52,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 11 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:52,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:52,298 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:52,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 01:50:52,298 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:52,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:52,299 INFO L85 PathProgramCache]: Analyzing trace with hash -213190240, now seen corresponding path program 6 times [2024-11-23 01:50:52,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:52,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646699204] [2024-11-23 01:50:52,299 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 01:50:52,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:52,314 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 01:50:52,314 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:52,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:52,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646699204] [2024-11-23 01:50:52,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646699204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:52,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:52,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:52,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121541343] [2024-11-23 01:50:52,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:52,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:52,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:52,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:52,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:52,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:50:52,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 671 transitions, 14242 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:52,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:52,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:50:52,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:55,246 INFO L124 PetriNetUnfolderBase]: 2751/6011 cut-off events. [2024-11-23 01:50:55,246 INFO L125 PetriNetUnfolderBase]: For 285208/285288 co-relation queries the response was YES. [2024-11-23 01:50:55,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58456 conditions, 6011 events. 2751/6011 cut-off events. For 285208/285288 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 46967 event pairs, 906 based on Foata normal form. 39/5998 useless extension candidates. Maximal degree in co-relation 58153. Up to 2399 conditions per place. [2024-11-23 01:50:55,360 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 609 selfloop transitions, 238 changer transitions 0/863 dead transitions. [2024-11-23 01:50:55,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 863 transitions, 19615 flow [2024-11-23 01:50:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 01:50:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 01:50:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 422 transitions. [2024-11-23 01:50:55,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4988179669030733 [2024-11-23 01:50:55,362 INFO L175 Difference]: Start difference. First operand has 445 places, 671 transitions, 14242 flow. Second operand 18 states and 422 transitions. [2024-11-23 01:50:55,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 863 transitions, 19615 flow [2024-11-23 01:50:56,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 863 transitions, 18849 flow, removed 379 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:56,941 INFO L231 Difference]: Finished difference. Result has 472 places, 709 transitions, 15506 flow [2024-11-23 01:50:56,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=13716, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15506, PETRI_PLACES=472, PETRI_TRANSITIONS=709} [2024-11-23 01:50:56,943 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 425 predicate places. [2024-11-23 01:50:56,943 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 709 transitions, 15506 flow [2024-11-23 01:50:56,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:56,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:56,943 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:56,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 01:50:56,944 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:50:56,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:56,944 INFO L85 PathProgramCache]: Analyzing trace with hash -608132700, now seen corresponding path program 7 times [2024-11-23 01:50:56,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:56,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477261567] [2024-11-23 01:50:56,945 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 01:50:56,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:50:57,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:57,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477261567] [2024-11-23 01:50:57,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477261567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:57,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:57,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:57,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917547736] [2024-11-23 01:50:57,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:57,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:57,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:57,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:57,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:57,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:50:57,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 709 transitions, 15506 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:57,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:57,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:50:57,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:00,178 INFO L124 PetriNetUnfolderBase]: 2983/6526 cut-off events. [2024-11-23 01:51:00,178 INFO L125 PetriNetUnfolderBase]: For 358984/359075 co-relation queries the response was YES. [2024-11-23 01:51:00,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65956 conditions, 6526 events. 2983/6526 cut-off events. For 358984/359075 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 52108 event pairs, 1048 based on Foata normal form. 47/6496 useless extension candidates. Maximal degree in co-relation 65641. Up to 2311 conditions per place. [2024-11-23 01:51:00,288 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 687 selfloop transitions, 201 changer transitions 0/904 dead transitions. [2024-11-23 01:51:00,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 904 transitions, 20790 flow [2024-11-23 01:51:00,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 01:51:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 01:51:00,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 434 transitions. [2024-11-23 01:51:00,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5130023640661938 [2024-11-23 01:51:00,466 INFO L175 Difference]: Start difference. First operand has 472 places, 709 transitions, 15506 flow. Second operand 18 states and 434 transitions. [2024-11-23 01:51:00,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 904 transitions, 20790 flow [2024-11-23 01:51:02,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 904 transitions, 20289 flow, removed 175 selfloop flow, removed 3 redundant places. [2024-11-23 01:51:02,327 INFO L231 Difference]: Finished difference. Result has 497 places, 745 transitions, 16887 flow [2024-11-23 01:51:02,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=15057, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16887, PETRI_PLACES=497, PETRI_TRANSITIONS=745} [2024-11-23 01:51:02,329 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2024-11-23 01:51:02,329 INFO L471 AbstractCegarLoop]: Abstraction has has 497 places, 745 transitions, 16887 flow [2024-11-23 01:51:02,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:02,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:02,329 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:51:02,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 01:51:02,330 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:51:02,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash -403979112, now seen corresponding path program 8 times [2024-11-23 01:51:02,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:02,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331100487] [2024-11-23 01:51:02,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:51:02,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:02,343 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:51:02,343 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:51:02,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:02,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331100487] [2024-11-23 01:51:02,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331100487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:02,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:02,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:51:02,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068791543] [2024-11-23 01:51:02,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:02,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:51:02,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:02,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:51:02,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:51:02,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-23 01:51:02,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 745 transitions, 16887 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:02,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:02,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-23 01:51:02,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:05,489 INFO L124 PetriNetUnfolderBase]: 2827/6287 cut-off events. [2024-11-23 01:51:05,489 INFO L125 PetriNetUnfolderBase]: For 401646/401740 co-relation queries the response was YES. [2024-11-23 01:51:05,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66713 conditions, 6287 events. 2827/6287 cut-off events. For 401646/401740 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 51174 event pairs, 837 based on Foata normal form. 58/6276 useless extension candidates. Maximal degree in co-relation 66387. Up to 4375 conditions per place. [2024-11-23 01:51:05,604 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 748 selfloop transitions, 114 changer transitions 0/889 dead transitions. [2024-11-23 01:51:05,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 889 transitions, 21225 flow [2024-11-23 01:51:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:51:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:51:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 319 transitions. [2024-11-23 01:51:05,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5220949263502455 [2024-11-23 01:51:05,606 INFO L175 Difference]: Start difference. First operand has 497 places, 745 transitions, 16887 flow. Second operand 13 states and 319 transitions. [2024-11-23 01:51:05,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 889 transitions, 21225 flow [2024-11-23 01:51:08,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 889 transitions, 20817 flow, removed 180 selfloop flow, removed 2 redundant places. [2024-11-23 01:51:08,096 INFO L231 Difference]: Finished difference. Result has 514 places, 763 transitions, 17570 flow [2024-11-23 01:51:08,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=16531, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=17570, PETRI_PLACES=514, PETRI_TRANSITIONS=763} [2024-11-23 01:51:08,097 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 467 predicate places. [2024-11-23 01:51:08,098 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 763 transitions, 17570 flow [2024-11-23 01:51:08,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:08,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:08,098 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:51:08,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-23 01:51:08,099 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:51:08,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:08,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1072064770, now seen corresponding path program 9 times [2024-11-23 01:51:08,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:08,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856912319] [2024-11-23 01:51:08,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:51:08,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:08,113 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:51:08,114 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:51:08,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:08,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856912319] [2024-11-23 01:51:08,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856912319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:08,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:08,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:51:08,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182326088] [2024-11-23 01:51:08,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:08,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:51:08,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:08,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:51:08,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:51:08,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-23 01:51:08,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 763 transitions, 17570 flow. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:08,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:08,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-23 01:51:08,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:11,970 INFO L124 PetriNetUnfolderBase]: 3266/7070 cut-off events. [2024-11-23 01:51:11,970 INFO L125 PetriNetUnfolderBase]: For 490053/490135 co-relation queries the response was YES. [2024-11-23 01:51:12,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76823 conditions, 7070 events. 3266/7070 cut-off events. For 490053/490135 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 56760 event pairs, 1084 based on Foata normal form. 35/7042 useless extension candidates. Maximal degree in co-relation 76490. Up to 3126 conditions per place. [2024-11-23 01:51:12,107 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 671 selfloop transitions, 276 changer transitions 0/963 dead transitions. [2024-11-23 01:51:12,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 963 transitions, 23569 flow [2024-11-23 01:51:12,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 01:51:12,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-23 01:51:12,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 445 transitions. [2024-11-23 01:51:12,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49832026875699886 [2024-11-23 01:51:12,108 INFO L175 Difference]: Start difference. First operand has 514 places, 763 transitions, 17570 flow. Second operand 19 states and 445 transitions. [2024-11-23 01:51:12,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 963 transitions, 23569 flow [2024-11-23 01:51:14,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 963 transitions, 23167 flow, removed 187 selfloop flow, removed 1 redundant places. [2024-11-23 01:51:14,818 INFO L231 Difference]: Finished difference. Result has 542 places, 798 transitions, 19374 flow [2024-11-23 01:51:14,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=17271, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=19374, PETRI_PLACES=542, PETRI_TRANSITIONS=798} [2024-11-23 01:51:14,820 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 495 predicate places. [2024-11-23 01:51:14,820 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 798 transitions, 19374 flow [2024-11-23 01:51:14,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:14,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:14,820 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:51:14,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 01:51:14,821 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-23 01:51:14,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:14,822 INFO L85 PathProgramCache]: Analyzing trace with hash 39313048, now seen corresponding path program 10 times [2024-11-23 01:51:14,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:14,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835252469] [2024-11-23 01:51:14,822 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:51:14,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:14,846 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:51:14,847 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 01:51:15,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:15,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835252469] [2024-11-23 01:51:15,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835252469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:15,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:15,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:51:15,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998734409] [2024-11-23 01:51:15,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:15,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:51:15,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:15,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:51:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:51:15,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-23 01:51:15,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 798 transitions, 19374 flow. Second operand has 11 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:15,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:15,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-23 01:51:15,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand