./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.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_08-tricky_address3.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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:50:04,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:50:04,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:50:04,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:50:04,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:50:04,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:50:04,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:50:04,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:50:04,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:50:04,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:50:04,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:50:04,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:50:04,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:50:04,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:50:04,878 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:50:04,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:50:04,879 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:50:04,879 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:50:04,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:50:04,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:50:04,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:50:04,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:50:04,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:50:04,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:50:04,881 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:50:04,881 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:50:04,881 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:50:04,882 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:50:04,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:50:04,882 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:50:04,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:50:04,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:50:04,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:50:04,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:50:04,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:50:04,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:50:04,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:50:04,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:50:04,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:50:04,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:50:04,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:50:04,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:50:04,887 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:50:04,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:50:04,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-11-23 01:50:05,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:50:05,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:50:05,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:50:05,185 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:50:05,186 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:50:05,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-23 01:50:06,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:50:06,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:50:06,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-23 01:50:06,866 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843c733a8/654b043c38c0468ea284b07e90097d95/FLAG57b75b4d9 [2024-11-23 01:50:06,881 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843c733a8/654b043c38c0468ea284b07e90097d95 [2024-11-23 01:50:06,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:50:06,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:50:06,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:50:06,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:50:06,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:50:06,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:06" (1/1) ... [2024-11-23 01:50:06,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7112f1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:06, skipping insertion in model container [2024-11-23 01:50:06,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:06" (1/1) ... [2024-11-23 01:50:06,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:50:07,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:50:07,381 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:50:07,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:50:07,470 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:50:07,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07 WrapperNode [2024-11-23 01:50:07,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:50:07,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:50:07,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:50:07,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:50:07,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,528 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 138 [2024-11-23 01:50:07,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:50:07,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:50:07,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:50:07,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:50:07,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,564 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-23 01:50:07,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:50:07,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:50:07,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:50:07,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:50:07,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (1/1) ... [2024-11-23 01:50:07,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:50:07,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:07,623 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 01:50:07,626 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 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 01:50:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:50:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:50:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:50:07,678 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 01:50:07,871 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:50:07,873 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:50:08,142 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:50:08,143 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:50:08,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:50:08,483 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 01:50:08,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:08 BoogieIcfgContainer [2024-11-23 01:50:08,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:50:08,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:50:08,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:50:08,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:50:08,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:50:06" (1/3) ... [2024-11-23 01:50:08,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52999f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:08, skipping insertion in model container [2024-11-23 01:50:08,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:07" (2/3) ... [2024-11-23 01:50:08,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52999f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:08, skipping insertion in model container [2024-11-23 01:50:08,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:08" (3/3) ... [2024-11-23 01:50:08,492 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-11-23 01:50:08,504 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:50:08,505 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-23 01:50:08,506 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:50:08,539 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 01:50:08,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 66 flow [2024-11-23 01:50:08,588 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-11-23 01:50:08,588 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:08,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-11-23 01:50:08,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 31 transitions, 66 flow [2024-11-23 01:50:08,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 30 transitions, 63 flow [2024-11-23 01:50:08,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:50:08,608 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;@7b6c1852, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:50:08,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-23 01:50:08,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:50:08,613 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-23 01:50:08,613 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:08,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:08,614 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-23 01:50:08,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:08,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:08,619 INFO L85 PathProgramCache]: Analyzing trace with hash 352943, now seen corresponding path program 1 times [2024-11-23 01:50:08,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:08,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112956656] [2024-11-23 01:50:08,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:08,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:08,939 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 01:50:08,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:08,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112956656] [2024-11-23 01:50:08,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112956656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:08,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:08,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:50:08,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122818019] [2024-11-23 01:50:08,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:08,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:50:08,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:50:08,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:50:08,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:08,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 01:50:08,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:08,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:08,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:09,089 INFO L124 PetriNetUnfolderBase]: 43/147 cut-off events. [2024-11-23 01:50:09,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:09,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 147 events. 43/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 548 event pairs, 42 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 233. Up to 105 conditions per place. [2024-11-23 01:50:09,093 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 19 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2024-11-23 01:50:09,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 111 flow [2024-11-23 01:50:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:50:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:50:09,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-11-23 01:50:09,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5564516129032258 [2024-11-23 01:50:09,104 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 63 flow. Second operand 4 states and 69 transitions. [2024-11-23 01:50:09,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 111 flow [2024-11-23 01:50:09,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:09,109 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2024-11-23 01:50:09,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-11-23 01:50:09,114 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2024-11-23 01:50:09,115 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2024-11-23 01:50:09,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 01:50:09,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:09,116 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-23 01:50:09,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:50:09,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:09,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:09,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1924949030, now seen corresponding path program 1 times [2024-11-23 01:50:09,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:09,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607856051] [2024-11-23 01:50:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:09,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,246 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 01:50:09,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607856051] [2024-11-23 01:50:09,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607856051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938072231] [2024-11-23 01:50:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:09,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:09,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:09,250 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 01:50:09,256 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 01:50:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:50:09,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:09,399 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 01:50:09,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:50:09,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938072231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:09,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:50:09,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 01:50:09,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265405123] [2024-11-23 01:50:09,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:09,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:50:09,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:09,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:50:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:09,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:09,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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 01:50:09,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:09,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:09,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:09,499 INFO L124 PetriNetUnfolderBase]: 43/146 cut-off events. [2024-11-23 01:50:09,500 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 01:50:09,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 146 events. 43/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 547 event pairs, 42 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 250. Up to 100 conditions per place. [2024-11-23 01:50:09,501 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 15 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2024-11-23 01:50:09,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 124 flow [2024-11-23 01:50:09,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:50:09,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:50:09,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2024-11-23 01:50:09,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4731182795698925 [2024-11-23 01:50:09,505 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 6 states and 88 transitions. [2024-11-23 01:50:09,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 124 flow [2024-11-23 01:50:09,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:09,508 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 92 flow [2024-11-23 01:50:09,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-11-23 01:50:09,510 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2024-11-23 01:50:09,511 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 92 flow [2024-11-23 01:50:09,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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 01:50:09,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:09,511 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-23 01:50:09,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 01:50:09,712 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 01:50:09,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:09,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash -456121852, now seen corresponding path program 1 times [2024-11-23 01:50:09,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:09,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075431650] [2024-11-23 01:50:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:09,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,752 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 01:50:09,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:09,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075431650] [2024-11-23 01:50:09,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075431650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:09,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:09,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:50:09,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2876543] [2024-11-23 01:50:09,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:09,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:50:09,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:09,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:50:09,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:50:09,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:09,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 01:50:09,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:09,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:09,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:09,817 INFO L124 PetriNetUnfolderBase]: 43/145 cut-off events. [2024-11-23 01:50:09,817 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-23 01:50:09,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 145 events. 43/145 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 548 event pairs, 42 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 246. Up to 103 conditions per place. [2024-11-23 01:50:09,819 INFO L140 encePairwiseOnDemand]: 28/31 looper letters, 16 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2024-11-23 01:50:09,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 128 flow [2024-11-23 01:50:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:50:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:50:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-23 01:50:09,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2024-11-23 01:50:09,821 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 92 flow. Second operand 3 states and 52 transitions. [2024-11-23 01:50:09,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 128 flow [2024-11-23 01:50:09,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 106 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-23 01:50:09,823 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 74 flow [2024-11-23 01:50:09,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-23 01:50:09,824 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-23 01:50:09,824 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 74 flow [2024-11-23 01:50:09,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 01:50:09,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:09,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:09,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 01:50:09,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:09,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1008739826, now seen corresponding path program 1 times [2024-11-23 01:50:09,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:09,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623533174] [2024-11-23 01:50:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:09,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,892 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 01:50:09,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:09,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623533174] [2024-11-23 01:50:09,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623533174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:09,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552747037] [2024-11-23 01:50:09,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:09,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:09,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:09,896 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 01:50:09,899 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 01:50:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:09,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 01:50:09,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:09,970 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 01:50:09,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:50:09,993 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 01:50:09,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552747037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:50:09,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:50:09,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-23 01:50:09,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289808110] [2024-11-23 01:50:09,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:50:09,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:09,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:09,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:09,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:50:10,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:10,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 74 flow. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 01:50:10,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:10,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:10,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:10,097 INFO L124 PetriNetUnfolderBase]: 43/149 cut-off events. [2024-11-23 01:50:10,097 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-23 01:50:10,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 149 events. 43/149 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 545 event pairs, 42 based on Foata normal form. 2/136 useless extension candidates. Maximal degree in co-relation 239. Up to 101 conditions per place. [2024-11-23 01:50:10,098 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 16 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2024-11-23 01:50:10,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 135 flow [2024-11-23 01:50:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:50:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 01:50:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 102 transitions. [2024-11-23 01:50:10,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4700460829493088 [2024-11-23 01:50:10,100 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 74 flow. Second operand 7 states and 102 transitions. [2024-11-23 01:50:10,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 135 flow [2024-11-23 01:50:10,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 121 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:10,101 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 100 flow [2024-11-23 01:50:10,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-11-23 01:50:10,102 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2024-11-23 01:50:10,102 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 100 flow [2024-11-23 01:50:10,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 01:50:10,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:10,103 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:10,109 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 01:50:10,306 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 01:50:10,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:10,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:10,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1654998702, now seen corresponding path program 2 times [2024-11-23 01:50:10,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:10,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746389097] [2024-11-23 01:50:10,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:10,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:10,334 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:10,335 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:11,036 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 01:50:11,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:11,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746389097] [2024-11-23 01:50:11,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746389097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:11,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:11,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:50:11,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515113474] [2024-11-23 01:50:11,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:11,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:50:11,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:11,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:50:11,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:50:11,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:11,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 01:50:11,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:11,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:11,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:11,316 INFO L124 PetriNetUnfolderBase]: 49/151 cut-off events. [2024-11-23 01:50:11,319 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-23 01:50:11,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 151 events. 49/151 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 499 event pairs, 20 based on Foata normal form. 8/150 useless extension candidates. Maximal degree in co-relation 258. Up to 79 conditions per place. [2024-11-23 01:50:11,321 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 31 selfloop transitions, 5 changer transitions 6/50 dead transitions. [2024-11-23 01:50:11,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 218 flow [2024-11-23 01:50:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:50:11,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:50:11,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-23 01:50:11,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-11-23 01:50:11,323 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 100 flow. Second operand 6 states and 107 transitions. [2024-11-23 01:50:11,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 218 flow [2024-11-23 01:50:11,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:11,325 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 123 flow [2024-11-23 01:50:11,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2024-11-23 01:50:11,325 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2024-11-23 01:50:11,326 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 123 flow [2024-11-23 01:50:11,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 01:50:11,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:11,326 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:11,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 01:50:11,326 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:11,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:11,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1654610680, now seen corresponding path program 1 times [2024-11-23 01:50:11,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:11,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332372970] [2024-11-23 01:50:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:11,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:11,424 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 01:50:11,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:11,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332372970] [2024-11-23 01:50:11,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332372970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:11,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:11,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:50:11,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413922261] [2024-11-23 01:50:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:11,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:50:11,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:50:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:50:11,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:11,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 01:50:11,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:11,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:11,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:11,549 INFO L124 PetriNetUnfolderBase]: 39/142 cut-off events. [2024-11-23 01:50:11,550 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-23 01:50:11,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 142 events. 39/142 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 532 event pairs, 2 based on Foata normal form. 7/135 useless extension candidates. Maximal degree in co-relation 288. Up to 59 conditions per place. [2024-11-23 01:50:11,551 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 34 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2024-11-23 01:50:11,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 233 flow [2024-11-23 01:50:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:50:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:50:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-23 01:50:11,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6129032258064516 [2024-11-23 01:50:11,552 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 123 flow. Second operand 4 states and 76 transitions. [2024-11-23 01:50:11,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 233 flow [2024-11-23 01:50:11,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 222 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:11,554 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 118 flow [2024-11-23 01:50:11,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2024-11-23 01:50:11,555 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2024-11-23 01:50:11,555 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 118 flow [2024-11-23 01:50:11,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 01:50:11,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:11,556 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:11,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 01:50:11,556 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:11,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:11,556 INFO L85 PathProgramCache]: Analyzing trace with hash 246676845, now seen corresponding path program 1 times [2024-11-23 01:50:11,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:11,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60254016] [2024-11-23 01:50:11,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:11,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:11,608 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 01:50:11,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:11,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60254016] [2024-11-23 01:50:11,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60254016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:11,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:11,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:50:11,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228562333] [2024-11-23 01:50:11,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:11,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:50:11,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:11,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:50:11,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:50:11,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:11,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 01:50:11,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:11,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:11,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:11,681 INFO L124 PetriNetUnfolderBase]: 33/118 cut-off events. [2024-11-23 01:50:11,681 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-23 01:50:11,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 118 events. 33/118 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 360 event pairs, 14 based on Foata normal form. 7/121 useless extension candidates. Maximal degree in co-relation 240. Up to 50 conditions per place. [2024-11-23 01:50:11,682 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 33 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2024-11-23 01:50:11,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 224 flow [2024-11-23 01:50:11,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:50:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:50:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-11-23 01:50:11,683 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2024-11-23 01:50:11,683 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 118 flow. Second operand 4 states and 75 transitions. [2024-11-23 01:50:11,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 224 flow [2024-11-23 01:50:11,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:11,685 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 116 flow [2024-11-23 01:50:11,685 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-23 01:50:11,703 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2024-11-23 01:50:11,704 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 116 flow [2024-11-23 01:50:11,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 01:50:11,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:11,705 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:11,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 01:50:11,705 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:11,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:11,706 INFO L85 PathProgramCache]: Analyzing trace with hash -942952022, now seen corresponding path program 1 times [2024-11-23 01:50:11,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:11,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198121169] [2024-11-23 01:50:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:11,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:11,813 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 01:50:11,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:11,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198121169] [2024-11-23 01:50:11,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198121169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:11,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140965682] [2024-11-23 01:50:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:11,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:11,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:11,815 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 01:50:11,822 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 01:50:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:11,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 01:50:11,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:11,940 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 01:50:11,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:50:12,012 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 01:50:12,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140965682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:50:12,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:50:12,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-23 01:50:12,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620612650] [2024-11-23 01:50:12,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:50:12,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 01:50:12,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:12,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 01:50:12,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-23 01:50:12,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:12,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 116 flow. Second operand has 18 states, 18 states have (on average 12.333333333333334) internal successors, (222), 18 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:12,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:12,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:12,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:12,148 INFO L124 PetriNetUnfolderBase]: 33/135 cut-off events. [2024-11-23 01:50:12,148 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-11-23 01:50:12,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 135 events. 33/135 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 397 event pairs, 32 based on Foata normal form. 4/133 useless extension candidates. Maximal degree in co-relation 245. Up to 82 conditions per place. [2024-11-23 01:50:12,149 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 17 selfloop transitions, 15 changer transitions 0/40 dead transitions. [2024-11-23 01:50:12,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 40 transitions, 228 flow [2024-11-23 01:50:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 01:50:12,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-23 01:50:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 200 transitions. [2024-11-23 01:50:12,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43010752688172044 [2024-11-23 01:50:12,155 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 116 flow. Second operand 15 states and 200 transitions. [2024-11-23 01:50:12,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 40 transitions, 228 flow [2024-11-23 01:50:12,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 40 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:12,157 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 207 flow [2024-11-23 01:50:12,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=207, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2024-11-23 01:50:12,158 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 26 predicate places. [2024-11-23 01:50:12,158 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 207 flow [2024-11-23 01:50:12,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.333333333333334) internal successors, (222), 18 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:12,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:12,158 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:12,166 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 01:50:12,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:12,359 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:12,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1737355158, now seen corresponding path program 2 times [2024-11-23 01:50:12,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:12,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122835975] [2024-11-23 01:50:12,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:12,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:12,391 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:12,391 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:12,705 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 01:50:12,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:12,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122835975] [2024-11-23 01:50:12,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122835975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:12,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:12,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:50:12,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757275522] [2024-11-23 01:50:12,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:12,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:50:12,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:12,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:50:12,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:50:12,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:12,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 01:50:12,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:12,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:12,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:12,832 INFO L124 PetriNetUnfolderBase]: 36/136 cut-off events. [2024-11-23 01:50:12,833 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-23 01:50:12,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 136 events. 36/136 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 381 event pairs, 8 based on Foata normal form. 14/150 useless extension candidates. Maximal degree in co-relation 241. Up to 57 conditions per place. [2024-11-23 01:50:12,834 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 40 selfloop transitions, 6 changer transitions 4/56 dead transitions. [2024-11-23 01:50:12,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 56 transitions, 351 flow [2024-11-23 01:50:12,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:50:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:50:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-23 01:50:12,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-11-23 01:50:12,835 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 207 flow. Second operand 6 states and 107 transitions. [2024-11-23 01:50:12,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 56 transitions, 351 flow [2024-11-23 01:50:12,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 341 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:12,839 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 237 flow [2024-11-23 01:50:12,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2024-11-23 01:50:12,841 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2024-11-23 01:50:12,841 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 237 flow [2024-11-23 01:50:12,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 01:50:12,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:12,842 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 01:50:12,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 01:50:12,842 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:12,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1648621561, now seen corresponding path program 1 times [2024-11-23 01:50:12,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:12,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94751163] [2024-11-23 01:50:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:12,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:13,103 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 01:50:13,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:13,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94751163] [2024-11-23 01:50:13,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94751163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:50:13,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587908634] [2024-11-23 01:50:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:13,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:13,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:13,106 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 01:50:13,107 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 01:50:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:13,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 01:50:13,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:50:13,233 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 01:50:13,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:50:13,378 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 01:50:13,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587908634] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:50:13,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:50:13,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-23 01:50:13,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106963556] [2024-11-23 01:50:13,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:50:13,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 01:50:13,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:13,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 01:50:13,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-23 01:50:13,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:50:13,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 237 flow. Second operand has 23 states, 23 states have (on average 12.478260869565217) internal successors, (287), 23 states have internal predecessors, (287), 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 01:50:13,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:13,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:50:13,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:13,610 INFO L124 PetriNetUnfolderBase]: 32/135 cut-off events. [2024-11-23 01:50:13,610 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-23 01:50:13,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 135 events. 32/135 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 326 event pairs, 28 based on Foata normal form. 3/137 useless extension candidates. Maximal degree in co-relation 370. Up to 81 conditions per place. [2024-11-23 01:50:13,611 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 20 selfloop transitions, 21 changer transitions 0/49 dead transitions. [2024-11-23 01:50:13,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 49 transitions, 373 flow [2024-11-23 01:50:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 01:50:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-23 01:50:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 271 transitions. [2024-11-23 01:50:13,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4162826420890937 [2024-11-23 01:50:13,613 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 237 flow. Second operand 21 states and 271 transitions. [2024-11-23 01:50:13,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 49 transitions, 373 flow [2024-11-23 01:50:13,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 49 transitions, 365 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-23 01:50:13,617 INFO L231 Difference]: Finished difference. Result has 84 places, 49 transitions, 340 flow [2024-11-23 01:50:13,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=340, PETRI_PLACES=84, PETRI_TRANSITIONS=49} [2024-11-23 01:50:13,617 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 51 predicate places. [2024-11-23 01:50:13,617 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 49 transitions, 340 flow [2024-11-23 01:50:13,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.478260869565217) internal successors, (287), 23 states have internal predecessors, (287), 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 01:50:13,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:13,618 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 01:50:13,644 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 01:50:13,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:50:13,818 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:13,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:13,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1324340750, now seen corresponding path program 2 times [2024-11-23 01:50:13,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:13,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946808415] [2024-11-23 01:50:13,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:13,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:13,871 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:13,872 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:18,908 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 01:50:18,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:18,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946808415] [2024-11-23 01:50:18,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946808415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:18,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:18,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:18,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645872673] [2024-11-23 01:50:18,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:18,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:18,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:18,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:18,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:50:18,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:50:18,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 49 transitions, 340 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:18,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:18,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:50:18,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:20,330 INFO L124 PetriNetUnfolderBase]: 70/209 cut-off events. [2024-11-23 01:50:20,332 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2024-11-23 01:50:20,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 209 events. 70/209 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 670 event pairs, 12 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 457. Up to 44 conditions per place. [2024-11-23 01:50:20,334 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 65 selfloop transitions, 17 changer transitions 3/87 dead transitions. [2024-11-23 01:50:20,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 87 transitions, 626 flow [2024-11-23 01:50:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 01:50:20,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 01:50:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 144 transitions. [2024-11-23 01:50:20,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4222873900293255 [2024-11-23 01:50:20,340 INFO L175 Difference]: Start difference. First operand has 84 places, 49 transitions, 340 flow. Second operand 11 states and 144 transitions. [2024-11-23 01:50:20,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 87 transitions, 626 flow [2024-11-23 01:50:20,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 87 transitions, 583 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-23 01:50:20,343 INFO L231 Difference]: Finished difference. Result has 87 places, 60 transitions, 410 flow [2024-11-23 01:50:20,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=410, PETRI_PLACES=87, PETRI_TRANSITIONS=60} [2024-11-23 01:50:20,346 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 54 predicate places. [2024-11-23 01:50:20,346 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 60 transitions, 410 flow [2024-11-23 01:50:20,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:20,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:20,347 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 01:50:20,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 01:50:20,347 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:20,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1884953700, now seen corresponding path program 3 times [2024-11-23 01:50:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:20,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000117614] [2024-11-23 01:50:20,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:50:20,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:20,388 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:50:20,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:23,325 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 01:50:23,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:23,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000117614] [2024-11-23 01:50:23,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000117614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:23,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:23,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:23,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909718879] [2024-11-23 01:50:23,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:23,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:23,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:23,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:23,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:23,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:50:23,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 60 transitions, 410 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 01:50:23,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:23,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:50:23,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:24,718 INFO L124 PetriNetUnfolderBase]: 80/247 cut-off events. [2024-11-23 01:50:24,718 INFO L125 PetriNetUnfolderBase]: For 411/413 co-relation queries the response was YES. [2024-11-23 01:50:24,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 247 events. 80/247 cut-off events. For 411/413 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 896 event pairs, 22 based on Foata normal form. 5/252 useless extension candidates. Maximal degree in co-relation 743. Up to 65 conditions per place. [2024-11-23 01:50:24,720 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 66 selfloop transitions, 27 changer transitions 7/102 dead transitions. [2024-11-23 01:50:24,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 816 flow [2024-11-23 01:50:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 01:50:24,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-23 01:50:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 190 transitions. [2024-11-23 01:50:24,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3605313092979127 [2024-11-23 01:50:24,723 INFO L175 Difference]: Start difference. First operand has 87 places, 60 transitions, 410 flow. Second operand 17 states and 190 transitions. [2024-11-23 01:50:24,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 816 flow [2024-11-23 01:50:24,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 102 transitions, 786 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:24,734 INFO L231 Difference]: Finished difference. Result has 104 places, 73 transitions, 563 flow [2024-11-23 01:50:24,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=563, PETRI_PLACES=104, PETRI_TRANSITIONS=73} [2024-11-23 01:50:24,735 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 71 predicate places. [2024-11-23 01:50:24,735 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 73 transitions, 563 flow [2024-11-23 01:50:24,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 01:50:24,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:24,736 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 01:50:24,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 01:50:24,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:24,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:24,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1582751929, now seen corresponding path program 1 times [2024-11-23 01:50:24,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:24,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229713168] [2024-11-23 01:50:24,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:24,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:27,602 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 01:50:27,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:27,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229713168] [2024-11-23 01:50:27,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229713168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:27,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:27,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:27,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112752076] [2024-11-23 01:50:27,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:27,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:27,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:27,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:50:27,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:50:27,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 73 transitions, 563 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:27,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:27,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:50:27,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:28,680 INFO L124 PetriNetUnfolderBase]: 83/261 cut-off events. [2024-11-23 01:50:28,680 INFO L125 PetriNetUnfolderBase]: For 527/531 co-relation queries the response was YES. [2024-11-23 01:50:28,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 261 events. 83/261 cut-off events. For 527/531 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1006 event pairs, 30 based on Foata normal form. 7/268 useless extension candidates. Maximal degree in co-relation 847. Up to 125 conditions per place. [2024-11-23 01:50:28,682 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 66 selfloop transitions, 32 changer transitions 5/105 dead transitions. [2024-11-23 01:50:28,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 105 transitions, 918 flow [2024-11-23 01:50:28,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 01:50:28,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-23 01:50:28,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 184 transitions. [2024-11-23 01:50:28,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3709677419354839 [2024-11-23 01:50:28,684 INFO L175 Difference]: Start difference. First operand has 104 places, 73 transitions, 563 flow. Second operand 16 states and 184 transitions. [2024-11-23 01:50:28,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 105 transitions, 918 flow [2024-11-23 01:50:28,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 105 transitions, 844 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-23 01:50:28,688 INFO L231 Difference]: Finished difference. Result has 116 places, 84 transitions, 669 flow [2024-11-23 01:50:28,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=669, PETRI_PLACES=116, PETRI_TRANSITIONS=84} [2024-11-23 01:50:28,689 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 83 predicate places. [2024-11-23 01:50:28,689 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 84 transitions, 669 flow [2024-11-23 01:50:28,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:28,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:28,689 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 01:50:28,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 01:50:28,690 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:28,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1751079297, now seen corresponding path program 2 times [2024-11-23 01:50:28,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:28,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429943053] [2024-11-23 01:50:28,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:50:28,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:28,708 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:50:28,709 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:34,871 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 01:50:34,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:34,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429943053] [2024-11-23 01:50:34,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429943053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:34,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771175383] [2024-11-23 01:50:34,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:34,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:34,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:34,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:34,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:34,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:50:34,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 84 transitions, 669 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 01:50:34,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:34,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:50:34,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:36,929 INFO L124 PetriNetUnfolderBase]: 87/279 cut-off events. [2024-11-23 01:50:36,929 INFO L125 PetriNetUnfolderBase]: For 612/616 co-relation queries the response was YES. [2024-11-23 01:50:36,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 279 events. 87/279 cut-off events. For 612/616 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1149 event pairs, 35 based on Foata normal form. 4/283 useless extension candidates. Maximal degree in co-relation 939. Up to 133 conditions per place. [2024-11-23 01:50:36,931 INFO L140 encePairwiseOnDemand]: 19/31 looper letters, 66 selfloop transitions, 37 changer transitions 7/112 dead transitions. [2024-11-23 01:50:36,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 112 transitions, 1028 flow [2024-11-23 01:50:36,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 01:50:36,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-23 01:50:36,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 203 transitions. [2024-11-23 01:50:36,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34465195246179964 [2024-11-23 01:50:36,933 INFO L175 Difference]: Start difference. First operand has 116 places, 84 transitions, 669 flow. Second operand 19 states and 203 transitions. [2024-11-23 01:50:36,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 112 transitions, 1028 flow [2024-11-23 01:50:36,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 112 transitions, 994 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:36,938 INFO L231 Difference]: Finished difference. Result has 135 places, 90 transitions, 794 flow [2024-11-23 01:50:36,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=794, PETRI_PLACES=135, PETRI_TRANSITIONS=90} [2024-11-23 01:50:36,939 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 102 predicate places. [2024-11-23 01:50:36,939 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 90 transitions, 794 flow [2024-11-23 01:50:36,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 01:50:36,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:36,939 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 01:50:36,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 01:50:36,939 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:36,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:36,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1752232497, now seen corresponding path program 3 times [2024-11-23 01:50:36,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:36,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268244433] [2024-11-23 01:50:36,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:50:36,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:36,957 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:50:36,958 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:42,000 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 01:50:42,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:42,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268244433] [2024-11-23 01:50:42,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268244433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:42,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:42,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:50:42,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373414692] [2024-11-23 01:50:42,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:42,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:50:42,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:42,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:50:42,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:50:42,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:50:42,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 90 transitions, 794 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 01:50:42,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:42,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:50:42,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:43,705 INFO L124 PetriNetUnfolderBase]: 89/289 cut-off events. [2024-11-23 01:50:43,706 INFO L125 PetriNetUnfolderBase]: For 846/851 co-relation queries the response was YES. [2024-11-23 01:50:43,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 289 events. 89/289 cut-off events. For 846/851 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1235 event pairs, 30 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 1069. Up to 129 conditions per place. [2024-11-23 01:50:43,708 INFO L140 encePairwiseOnDemand]: 18/31 looper letters, 71 selfloop transitions, 44 changer transitions 0/117 dead transitions. [2024-11-23 01:50:43,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 117 transitions, 1148 flow [2024-11-23 01:50:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 01:50:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-23 01:50:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 189 transitions. [2024-11-23 01:50:43,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3586337760910816 [2024-11-23 01:50:43,713 INFO L175 Difference]: Start difference. First operand has 135 places, 90 transitions, 794 flow. Second operand 17 states and 189 transitions. [2024-11-23 01:50:43,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 117 transitions, 1148 flow [2024-11-23 01:50:43,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 117 transitions, 1104 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-23 01:50:43,721 INFO L231 Difference]: Finished difference. Result has 145 places, 98 transitions, 925 flow [2024-11-23 01:50:43,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=925, PETRI_PLACES=145, PETRI_TRANSITIONS=98} [2024-11-23 01:50:43,721 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 112 predicate places. [2024-11-23 01:50:43,721 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 98 transitions, 925 flow [2024-11-23 01:50:43,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 01:50:43,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:43,722 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 01:50:43,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 01:50:43,722 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:43,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:43,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1583180631, now seen corresponding path program 4 times [2024-11-23 01:50:43,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:43,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759018788] [2024-11-23 01:50:43,723 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:50:43,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:43,769 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:50:43,769 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:48,898 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 01:50:48,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:48,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759018788] [2024-11-23 01:50:48,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759018788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:48,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:48,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:48,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555652766] [2024-11-23 01:50:48,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:48,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:48,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:48,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:48,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:50:48,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:50:48,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 98 transitions, 925 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:48,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:48,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:50:48,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:50,125 INFO L124 PetriNetUnfolderBase]: 90/299 cut-off events. [2024-11-23 01:50:50,126 INFO L125 PetriNetUnfolderBase]: For 1015/1019 co-relation queries the response was YES. [2024-11-23 01:50:50,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 299 events. 90/299 cut-off events. For 1015/1019 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1318 event pairs, 40 based on Foata normal form. 7/306 useless extension candidates. Maximal degree in co-relation 1153. Up to 142 conditions per place. [2024-11-23 01:50:50,128 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 79 selfloop transitions, 39 changer transitions 0/120 dead transitions. [2024-11-23 01:50:50,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 120 transitions, 1281 flow [2024-11-23 01:50:50,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 01:50:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 01:50:50,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 163 transitions. [2024-11-23 01:50:50,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37557603686635943 [2024-11-23 01:50:50,130 INFO L175 Difference]: Start difference. First operand has 145 places, 98 transitions, 925 flow. Second operand 14 states and 163 transitions. [2024-11-23 01:50:50,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 120 transitions, 1281 flow [2024-11-23 01:50:50,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 120 transitions, 1203 flow, removed 8 selfloop flow, removed 10 redundant places. [2024-11-23 01:50:50,136 INFO L231 Difference]: Finished difference. Result has 153 places, 104 transitions, 1028 flow [2024-11-23 01:50:50,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1028, PETRI_PLACES=153, PETRI_TRANSITIONS=104} [2024-11-23 01:50:50,137 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 120 predicate places. [2024-11-23 01:50:50,137 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 104 transitions, 1028 flow [2024-11-23 01:50:50,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:50,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:50,137 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 01:50:50,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 01:50:50,138 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:50,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:50,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1836837104, now seen corresponding path program 4 times [2024-11-23 01:50:50,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:50,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508656598] [2024-11-23 01:50:50,138 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:50:50,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:50,214 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:50:50,214 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:50:51,488 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 01:50:51,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:51,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508656598] [2024-11-23 01:50:51,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508656598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:51,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:51,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356101877] [2024-11-23 01:50:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:51,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:51,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:50:51,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:50:51,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 104 transitions, 1028 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:51,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:51,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:50:51,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:52,089 INFO L124 PetriNetUnfolderBase]: 92/309 cut-off events. [2024-11-23 01:50:52,090 INFO L125 PetriNetUnfolderBase]: For 1172/1176 co-relation queries the response was YES. [2024-11-23 01:50:52,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 309 events. 92/309 cut-off events. For 1172/1176 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1405 event pairs, 28 based on Foata normal form. 7/316 useless extension candidates. Maximal degree in co-relation 1216. Up to 119 conditions per place. [2024-11-23 01:50:52,092 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 90 selfloop transitions, 42 changer transitions 1/135 dead transitions. [2024-11-23 01:50:52,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 135 transitions, 1436 flow [2024-11-23 01:50:52,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 01:50:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-23 01:50:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 189 transitions. [2024-11-23 01:50:52,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3586337760910816 [2024-11-23 01:50:52,094 INFO L175 Difference]: Start difference. First operand has 153 places, 104 transitions, 1028 flow. Second operand 17 states and 189 transitions. [2024-11-23 01:50:52,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 135 transitions, 1436 flow [2024-11-23 01:50:52,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 135 transitions, 1408 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:52,109 INFO L231 Difference]: Finished difference. Result has 171 places, 114 transitions, 1166 flow [2024-11-23 01:50:52,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1166, PETRI_PLACES=171, PETRI_TRANSITIONS=114} [2024-11-23 01:50:52,110 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 138 predicate places. [2024-11-23 01:50:52,111 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 114 transitions, 1166 flow [2024-11-23 01:50:52,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 01:50:52,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:52,112 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 01:50:52,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 01:50:52,112 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:52,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash 290446421, now seen corresponding path program 1 times [2024-11-23 01:50:52,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:52,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162688401] [2024-11-23 01:50:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:54,798 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 01:50:54,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162688401] [2024-11-23 01:50:54,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162688401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:54,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:54,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 01:50:54,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841557856] [2024-11-23 01:50:54,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:54,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 01:50:54,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:54,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 01:50:54,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:50:54,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-23 01:50:54,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 114 transitions, 1166 flow. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 01:50:54,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:54,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-23 01:50:54,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:56,660 INFO L124 PetriNetUnfolderBase]: 80/312 cut-off events. [2024-11-23 01:50:56,660 INFO L125 PetriNetUnfolderBase]: For 1574/1578 co-relation queries the response was YES. [2024-11-23 01:50:56,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1428 conditions, 312 events. 80/312 cut-off events. For 1574/1578 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1564 event pairs, 31 based on Foata normal form. 7/318 useless extension candidates. Maximal degree in co-relation 1322. Up to 144 conditions per place. [2024-11-23 01:50:56,664 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 69 selfloop transitions, 19 changer transitions 25/132 dead transitions. [2024-11-23 01:50:56,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 132 transitions, 1503 flow [2024-11-23 01:50:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:50:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 01:50:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 138 transitions. [2024-11-23 01:50:56,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44516129032258067 [2024-11-23 01:50:56,665 INFO L175 Difference]: Start difference. First operand has 171 places, 114 transitions, 1166 flow. Second operand 10 states and 138 transitions. [2024-11-23 01:50:56,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 132 transitions, 1503 flow [2024-11-23 01:50:56,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 132 transitions, 1413 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-23 01:50:56,674 INFO L231 Difference]: Finished difference. Result has 172 places, 102 transitions, 984 flow [2024-11-23 01:50:56,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=984, PETRI_PLACES=172, PETRI_TRANSITIONS=102} [2024-11-23 01:50:56,674 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 139 predicate places. [2024-11-23 01:50:56,674 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 102 transitions, 984 flow [2024-11-23 01:50:56,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 01:50:56,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:56,675 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 01:50:56,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 01:50:56,675 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:50:56,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1820669901, now seen corresponding path program 1 times [2024-11-23 01:50:56,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:56,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910122016] [2024-11-23 01:50:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:56,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:59,740 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 01:50:59,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910122016] [2024-11-23 01:50:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910122016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:59,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:59,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:50:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807918704] [2024-11-23 01:50:59,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:59,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:50:59,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:59,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:50:59,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:50:59,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-23 01:50:59,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 102 transitions, 984 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 01:50:59,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:59,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-23 01:50:59,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:01,354 INFO L124 PetriNetUnfolderBase]: 62/264 cut-off events. [2024-11-23 01:51:01,354 INFO L125 PetriNetUnfolderBase]: For 1222/1226 co-relation queries the response was YES. [2024-11-23 01:51:01,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 264 events. 62/264 cut-off events. For 1222/1226 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1238 event pairs, 32 based on Foata normal form. 7/270 useless extension candidates. Maximal degree in co-relation 1122. Up to 146 conditions per place. [2024-11-23 01:51:01,356 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 61 selfloop transitions, 22 changer transitions 13/114 dead transitions. [2024-11-23 01:51:01,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 114 transitions, 1211 flow [2024-11-23 01:51:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:51:01,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:51:01,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 166 transitions. [2024-11-23 01:51:01,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4119106699751861 [2024-11-23 01:51:01,358 INFO L175 Difference]: Start difference. First operand has 172 places, 102 transitions, 984 flow. Second operand 13 states and 166 transitions. [2024-11-23 01:51:01,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 114 transitions, 1211 flow [2024-11-23 01:51:01,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 114 transitions, 1142 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-11-23 01:51:01,367 INFO L231 Difference]: Finished difference. Result has 168 places, 96 transitions, 901 flow [2024-11-23 01:51:01,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=901, PETRI_PLACES=168, PETRI_TRANSITIONS=96} [2024-11-23 01:51:01,368 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 135 predicate places. [2024-11-23 01:51:01,368 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 96 transitions, 901 flow [2024-11-23 01:51:01,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 01:51:01,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:01,368 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 01:51:01,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 01:51:01,368 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:01,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:01,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1514154283, now seen corresponding path program 1 times [2024-11-23 01:51:01,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:01,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012473218] [2024-11-23 01:51:01,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:51:01,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:51:04,283 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 01:51:04,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:04,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012473218] [2024-11-23 01:51:04,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012473218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:04,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:04,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:51:04,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756974516] [2024-11-23 01:51:04,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:04,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:51:04,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:04,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:51:04,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:51:04,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-23 01:51:04,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 96 transitions, 901 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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 01:51:04,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:04,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-23 01:51:04,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:04,837 INFO L124 PetriNetUnfolderBase]: 70/256 cut-off events. [2024-11-23 01:51:04,837 INFO L125 PetriNetUnfolderBase]: For 826/826 co-relation queries the response was YES. [2024-11-23 01:51:04,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 256 events. 70/256 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1093 event pairs, 4 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 1095. Up to 69 conditions per place. [2024-11-23 01:51:04,839 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 87 selfloop transitions, 25 changer transitions 0/114 dead transitions. [2024-11-23 01:51:04,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 114 transitions, 1211 flow [2024-11-23 01:51:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 01:51:04,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 01:51:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 128 transitions. [2024-11-23 01:51:04,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375366568914956 [2024-11-23 01:51:04,841 INFO L175 Difference]: Start difference. First operand has 168 places, 96 transitions, 901 flow. Second operand 11 states and 128 transitions. [2024-11-23 01:51:04,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 114 transitions, 1211 flow [2024-11-23 01:51:04,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 114 transitions, 1145 flow, removed 3 selfloop flow, removed 18 redundant places. [2024-11-23 01:51:04,847 INFO L231 Difference]: Finished difference. Result has 155 places, 95 transitions, 873 flow [2024-11-23 01:51:04,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=873, PETRI_PLACES=155, PETRI_TRANSITIONS=95} [2024-11-23 01:51:04,847 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 122 predicate places. [2024-11-23 01:51:04,848 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 95 transitions, 873 flow [2024-11-23 01:51:04,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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 01:51:04,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:04,848 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 01:51:04,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 01:51:04,848 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:04,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:04,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1515367083, now seen corresponding path program 2 times [2024-11-23 01:51:04,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:04,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980943977] [2024-11-23 01:51:04,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:51:04,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:04,867 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:51:04,867 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:08,434 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 01:51:08,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:08,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980943977] [2024-11-23 01:51:08,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980943977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:08,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:08,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:51:08,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41426567] [2024-11-23 01:51:08,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:08,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:51:08,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:08,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:51:08,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:51:08,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-23 01:51:08,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 95 transitions, 873 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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 01:51:08,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:08,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-23 01:51:08,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:09,706 INFO L124 PetriNetUnfolderBase]: 54/233 cut-off events. [2024-11-23 01:51:09,709 INFO L125 PetriNetUnfolderBase]: For 763/763 co-relation queries the response was YES. [2024-11-23 01:51:09,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 233 events. 54/233 cut-off events. For 763/763 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1021 event pairs, 17 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 987. Up to 118 conditions per place. [2024-11-23 01:51:09,712 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 59 selfloop transitions, 26 changer transitions 7/109 dead transitions. [2024-11-23 01:51:09,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 109 transitions, 1104 flow [2024-11-23 01:51:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 01:51:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 01:51:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 174 transitions. [2024-11-23 01:51:09,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4009216589861751 [2024-11-23 01:51:09,714 INFO L175 Difference]: Start difference. First operand has 155 places, 95 transitions, 873 flow. Second operand 14 states and 174 transitions. [2024-11-23 01:51:09,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 109 transitions, 1104 flow [2024-11-23 01:51:09,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 109 transitions, 1060 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-23 01:51:09,722 INFO L231 Difference]: Finished difference. Result has 160 places, 91 transitions, 851 flow [2024-11-23 01:51:09,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=851, PETRI_PLACES=160, PETRI_TRANSITIONS=91} [2024-11-23 01:51:09,724 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 127 predicate places. [2024-11-23 01:51:09,724 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 91 transitions, 851 flow [2024-11-23 01:51:09,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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 01:51:09,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:09,724 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 01:51:09,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 01:51:09,725 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:09,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1551116283, now seen corresponding path program 3 times [2024-11-23 01:51:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:09,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122121248] [2024-11-23 01:51:09,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:51:09,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:09,747 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:51:09,747 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:13,423 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 01:51:13,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:13,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122121248] [2024-11-23 01:51:13,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122121248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:13,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:13,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:51:13,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444750344] [2024-11-23 01:51:13,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:13,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:51:13,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:13,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:51:13,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:51:13,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-23 01:51:13,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 91 transitions, 851 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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 01:51:13,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:13,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-23 01:51:13,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:14,797 INFO L124 PetriNetUnfolderBase]: 48/215 cut-off events. [2024-11-23 01:51:14,797 INFO L125 PetriNetUnfolderBase]: For 804/804 co-relation queries the response was YES. [2024-11-23 01:51:14,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 215 events. 48/215 cut-off events. For 804/804 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 868 event pairs, 17 based on Foata normal form. 6/221 useless extension candidates. Maximal degree in co-relation 930. Up to 102 conditions per place. [2024-11-23 01:51:14,799 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 54 selfloop transitions, 20 changer transitions 16/102 dead transitions. [2024-11-23 01:51:14,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 102 transitions, 1058 flow [2024-11-23 01:51:14,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:51:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:51:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 161 transitions. [2024-11-23 01:51:14,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39950372208436724 [2024-11-23 01:51:14,800 INFO L175 Difference]: Start difference. First operand has 160 places, 91 transitions, 851 flow. Second operand 13 states and 161 transitions. [2024-11-23 01:51:14,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 102 transitions, 1058 flow [2024-11-23 01:51:14,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 102 transitions, 978 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-23 01:51:14,805 INFO L231 Difference]: Finished difference. Result has 154 places, 80 transitions, 697 flow [2024-11-23 01:51:14,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=697, PETRI_PLACES=154, PETRI_TRANSITIONS=80} [2024-11-23 01:51:14,806 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 121 predicate places. [2024-11-23 01:51:14,806 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 80 transitions, 697 flow [2024-11-23 01:51:14,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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 01:51:14,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:14,806 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 01:51:14,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 01:51:14,806 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:14,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:14,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1833959663, now seen corresponding path program 4 times [2024-11-23 01:51:14,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:14,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500085813] [2024-11-23 01:51:14,807 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:51:14,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:14,835 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:51:14,836 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:18,162 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 01:51:18,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:18,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500085813] [2024-11-23 01:51:18,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500085813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:18,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:18,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:51:18,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715591901] [2024-11-23 01:51:18,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:18,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:51:18,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:18,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:51:18,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:51:18,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:51:18,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 80 transitions, 697 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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 01:51:18,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:18,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:51:18,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:18,836 INFO L124 PetriNetUnfolderBase]: 34/177 cut-off events. [2024-11-23 01:51:18,836 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2024-11-23 01:51:18,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 177 events. 34/177 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 636 event pairs, 14 based on Foata normal form. 3/180 useless extension candidates. Maximal degree in co-relation 716. Up to 72 conditions per place. [2024-11-23 01:51:18,838 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 49 selfloop transitions, 14 changer transitions 14/88 dead transitions. [2024-11-23 01:51:18,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 88 transitions, 865 flow [2024-11-23 01:51:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 01:51:18,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 01:51:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 174 transitions. [2024-11-23 01:51:18,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46774193548387094 [2024-11-23 01:51:18,839 INFO L175 Difference]: Start difference. First operand has 154 places, 80 transitions, 697 flow. Second operand 12 states and 174 transitions. [2024-11-23 01:51:18,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 88 transitions, 865 flow [2024-11-23 01:51:18,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 88 transitions, 771 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-23 01:51:18,843 INFO L231 Difference]: Finished difference. Result has 139 places, 71 transitions, 561 flow [2024-11-23 01:51:18,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=561, PETRI_PLACES=139, PETRI_TRANSITIONS=71} [2024-11-23 01:51:18,843 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 106 predicate places. [2024-11-23 01:51:18,843 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 71 transitions, 561 flow [2024-11-23 01:51:18,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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 01:51:18,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:18,844 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 01:51:18,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 01:51:18,844 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:18,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:18,844 INFO L85 PathProgramCache]: Analyzing trace with hash -862055197, now seen corresponding path program 2 times [2024-11-23 01:51:18,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:18,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583627252] [2024-11-23 01:51:18,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:51:18,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:18,863 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:51:18,863 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:23,040 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 01:51:23,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:23,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583627252] [2024-11-23 01:51:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583627252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:23,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 01:51:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351540162] [2024-11-23 01:51:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:23,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 01:51:23,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 01:51:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 01:51:23,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-23 01:51:23,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 71 transitions, 561 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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 01:51:23,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:23,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-23 01:51:23,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:24,159 INFO L124 PetriNetUnfolderBase]: 40/183 cut-off events. [2024-11-23 01:51:24,159 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2024-11-23 01:51:24,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 183 events. 40/183 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 648 event pairs, 17 based on Foata normal form. 3/186 useless extension candidates. Maximal degree in co-relation 666. Up to 81 conditions per place. [2024-11-23 01:51:24,160 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 51 selfloop transitions, 12 changer transitions 12/84 dead transitions. [2024-11-23 01:51:24,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 84 transitions, 755 flow [2024-11-23 01:51:24,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 01:51:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 01:51:24,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 151 transitions. [2024-11-23 01:51:24,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40591397849462363 [2024-11-23 01:51:24,161 INFO L175 Difference]: Start difference. First operand has 139 places, 71 transitions, 561 flow. Second operand 12 states and 151 transitions. [2024-11-23 01:51:24,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 84 transitions, 755 flow [2024-11-23 01:51:24,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 84 transitions, 699 flow, removed 4 selfloop flow, removed 15 redundant places. [2024-11-23 01:51:24,164 INFO L231 Difference]: Finished difference. Result has 127 places, 67 transitions, 502 flow [2024-11-23 01:51:24,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=502, PETRI_PLACES=127, PETRI_TRANSITIONS=67} [2024-11-23 01:51:24,165 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 94 predicate places. [2024-11-23 01:51:24,165 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 67 transitions, 502 flow [2024-11-23 01:51:24,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 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 01:51:24,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:24,165 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 01:51:24,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 01:51:24,165 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:24,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1499003363, now seen corresponding path program 3 times [2024-11-23 01:51:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:24,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80074565] [2024-11-23 01:51:24,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:51:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:24,184 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:51:24,185 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:26,145 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 01:51:26,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:26,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80074565] [2024-11-23 01:51:26,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80074565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:26,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:26,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 01:51:26,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582114553] [2024-11-23 01:51:26,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:26,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 01:51:26,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:26,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 01:51:26,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-23 01:51:26,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-23 01:51:26,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 67 transitions, 502 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 01:51:26,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:26,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-23 01:51:26,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:26,919 INFO L124 PetriNetUnfolderBase]: 33/166 cut-off events. [2024-11-23 01:51:26,919 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2024-11-23 01:51:26,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 166 events. 33/166 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 554 event pairs, 17 based on Foata normal form. 3/169 useless extension candidates. Maximal degree in co-relation 584. Up to 71 conditions per place. [2024-11-23 01:51:26,920 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 50 selfloop transitions, 13 changer transitions 8/80 dead transitions. [2024-11-23 01:51:26,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 80 transitions, 688 flow [2024-11-23 01:51:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 01:51:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-23 01:51:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2024-11-23 01:51:26,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2024-11-23 01:51:26,921 INFO L175 Difference]: Start difference. First operand has 127 places, 67 transitions, 502 flow. Second operand 12 states and 150 transitions. [2024-11-23 01:51:26,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 80 transitions, 688 flow [2024-11-23 01:51:26,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 80 transitions, 651 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-23 01:51:26,924 INFO L231 Difference]: Finished difference. Result has 125 places, 67 transitions, 498 flow [2024-11-23 01:51:26,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=498, PETRI_PLACES=125, PETRI_TRANSITIONS=67} [2024-11-23 01:51:26,924 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 92 predicate places. [2024-11-23 01:51:26,924 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 67 transitions, 498 flow [2024-11-23 01:51:26,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 01:51:26,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:26,925 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 01:51:26,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 01:51:26,925 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:26,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:26,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1107374999, now seen corresponding path program 4 times [2024-11-23 01:51:26,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:26,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846625686] [2024-11-23 01:51:26,926 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 01:51:26,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:26,956 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 01:51:26,956 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:51:28,398 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 01:51:28,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:28,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846625686] [2024-11-23 01:51:28,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846625686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:28,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:28,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:51:28,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006615421] [2024-11-23 01:51:28,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:28,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:51:28,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:51:28,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:51:28,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-23 01:51:28,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 67 transitions, 498 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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 01:51:28,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:28,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-23 01:51:28,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:28,891 INFO L124 PetriNetUnfolderBase]: 26/140 cut-off events. [2024-11-23 01:51:28,892 INFO L125 PetriNetUnfolderBase]: For 331/331 co-relation queries the response was YES. [2024-11-23 01:51:28,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 140 events. 26/140 cut-off events. For 331/331 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 388 event pairs, 11 based on Foata normal form. 3/143 useless extension candidates. Maximal degree in co-relation 512. Up to 51 conditions per place. [2024-11-23 01:51:28,893 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 41 selfloop transitions, 15 changer transitions 10/75 dead transitions. [2024-11-23 01:51:28,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 75 transitions, 644 flow [2024-11-23 01:51:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 01:51:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-23 01:51:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 198 transitions. [2024-11-23 01:51:28,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45622119815668205 [2024-11-23 01:51:28,894 INFO L175 Difference]: Start difference. First operand has 125 places, 67 transitions, 498 flow. Second operand 14 states and 198 transitions. [2024-11-23 01:51:28,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 75 transitions, 644 flow [2024-11-23 01:51:28,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 75 transitions, 614 flow, removed 3 selfloop flow, removed 10 redundant places. [2024-11-23 01:51:28,897 INFO L231 Difference]: Finished difference. Result has 128 places, 61 transitions, 464 flow [2024-11-23 01:51:28,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=464, PETRI_PLACES=128, PETRI_TRANSITIONS=61} [2024-11-23 01:51:28,898 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 95 predicate places. [2024-11-23 01:51:28,898 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 61 transitions, 464 flow [2024-11-23 01:51:28,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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 01:51:28,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:28,898 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 01:51:28,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 01:51:28,898 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:28,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:28,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1366022447, now seen corresponding path program 1 times [2024-11-23 01:51:28,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:28,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10425491] [2024-11-23 01:51:28,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:51:28,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:51:30,532 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 01:51:30,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:30,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10425491] [2024-11-23 01:51:30,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10425491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:30,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:30,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:51:30,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362888468] [2024-11-23 01:51:30,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:30,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:51:30,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:30,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:51:30,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:51:30,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-23 01:51:30,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 61 transitions, 464 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:30,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:30,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-23 01:51:30,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:31,370 INFO L124 PetriNetUnfolderBase]: 22/127 cut-off events. [2024-11-23 01:51:31,370 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2024-11-23 01:51:31,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 127 events. 22/127 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 308 event pairs, 4 based on Foata normal form. 2/129 useless extension candidates. Maximal degree in co-relation 480. Up to 31 conditions per place. [2024-11-23 01:51:31,371 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 51 selfloop transitions, 21 changer transitions 0/77 dead transitions. [2024-11-23 01:51:31,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 77 transitions, 678 flow [2024-11-23 01:51:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 01:51:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-23 01:51:31,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 153 transitions. [2024-11-23 01:51:31,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37965260545905705 [2024-11-23 01:51:31,372 INFO L175 Difference]: Start difference. First operand has 128 places, 61 transitions, 464 flow. Second operand 13 states and 153 transitions. [2024-11-23 01:51:31,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 77 transitions, 678 flow [2024-11-23 01:51:31,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 77 transitions, 613 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-11-23 01:51:31,375 INFO L231 Difference]: Finished difference. Result has 121 places, 68 transitions, 502 flow [2024-11-23 01:51:31,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=502, PETRI_PLACES=121, PETRI_TRANSITIONS=68} [2024-11-23 01:51:31,375 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 88 predicate places. [2024-11-23 01:51:31,375 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 68 transitions, 502 flow [2024-11-23 01:51:31,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:51:31,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:31,376 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:51:31,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 01:51:31,376 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:31,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:31,376 INFO L85 PathProgramCache]: Analyzing trace with hash 305857841, now seen corresponding path program 1 times [2024-11-23 01:51:31,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:31,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105029861] [2024-11-23 01:51:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:51:31,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:51:33,680 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 01:51:33,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:51:33,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105029861] [2024-11-23 01:51:33,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105029861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:51:33,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:51:33,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:51:33,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236934441] [2024-11-23 01:51:33,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:51:33,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:51:33,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:51:33,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:51:33,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:51:33,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-23 01:51:33,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 68 transitions, 502 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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 01:51:33,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:51:33,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-23 01:51:33,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:51:34,108 INFO L124 PetriNetUnfolderBase]: 20/125 cut-off events. [2024-11-23 01:51:34,108 INFO L125 PetriNetUnfolderBase]: For 281/281 co-relation queries the response was YES. [2024-11-23 01:51:34,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 125 events. 20/125 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 304 event pairs, 5 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 477. Up to 42 conditions per place. [2024-11-23 01:51:34,109 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 43 selfloop transitions, 8 changer transitions 15/72 dead transitions. [2024-11-23 01:51:34,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 72 transitions, 636 flow [2024-11-23 01:51:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:51:34,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 01:51:34,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 123 transitions. [2024-11-23 01:51:34,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3967741935483871 [2024-11-23 01:51:34,110 INFO L175 Difference]: Start difference. First operand has 121 places, 68 transitions, 502 flow. Second operand 10 states and 123 transitions. [2024-11-23 01:51:34,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 72 transitions, 636 flow [2024-11-23 01:51:34,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 72 transitions, 605 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-23 01:51:34,113 INFO L231 Difference]: Finished difference. Result has 122 places, 57 transitions, 430 flow [2024-11-23 01:51:34,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=430, PETRI_PLACES=122, PETRI_TRANSITIONS=57} [2024-11-23 01:51:34,114 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 89 predicate places. [2024-11-23 01:51:34,115 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 57 transitions, 430 flow [2024-11-23 01:51:34,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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 01:51:34,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:51:34,115 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:51:34,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 01:51:34,116 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:51:34,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:51:34,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1284634630, now seen corresponding path program 1 times [2024-11-23 01:51:34,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:51:34,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087612602] [2024-11-23 01:51:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:51:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:51:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat