./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:46:02,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:46:02,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:46:02,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:46:02,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:46:02,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:46:02,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:46:02,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:46:02,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:46:02,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:46:02,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:46:02,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:46:02,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:46:02,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:46:02,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:46:02,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:46:02,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:46:02,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:46:02,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:46:02,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:46:02,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:46:02,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:46:02,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:46:02,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:46:02,295 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:46:02,295 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:46:02,296 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:46:02,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:46:02,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:46:02,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:46:02,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:46:02,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:46:02,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:46:02,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:46:02,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:46:02,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:46:02,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:46:02,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:46:02,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:46:02,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:46:02,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:46:02,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:46:02,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:46:02,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:46:02,303 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-17 07:46:02,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:46:02,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:46:02,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:46:02,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:46:02,591 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:46:02,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-17 07:46:04,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:46:04,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:46:04,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-17 07:46:04,325 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f71a7726/559e239446d54578bcf20ea80bb938a6/FLAGfc3025cc2 [2024-11-17 07:46:04,335 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f71a7726/559e239446d54578bcf20ea80bb938a6 [2024-11-17 07:46:04,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:46:04,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:46:04,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:46:04,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:46:04,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:46:04,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:46:04" (1/1) ... [2024-11-17 07:46:04,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b4a921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:04, skipping insertion in model container [2024-11-17 07:46:04,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:46:04" (1/1) ... [2024-11-17 07:46:04,398 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:46:04,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:46:04,942 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:46:04,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:46:05,057 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:46:05,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05 WrapperNode [2024-11-17 07:46:05,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:46:05,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:46:05,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:46:05,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:46:05,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,131 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 152 [2024-11-17 07:46:05,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:46:05,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:46:05,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:46:05,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:46:05,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,173 INFO L175 MemorySlicer]: Split 66 memory accesses to 1 slices as follows [66]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 3 writes are split as follows [3]. [2024-11-17 07:46:05,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,188 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:46:05,202 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:46:05,202 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:46:05,202 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:46:05,205 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (1/1) ... [2024-11-17 07:46:05,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:46:05,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:05,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:46:05,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:46:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:46:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:46:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:46:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:46:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:46:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:46:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:46:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:46:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:46:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:46:05,287 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:46:05,413 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:46:05,415 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:46:05,708 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:46:05,708 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:46:06,014 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:46:06,014 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:46:06,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:46:06 BoogieIcfgContainer [2024-11-17 07:46:06,015 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:46:06,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:46:06,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:46:06,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:46:06,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:46:04" (1/3) ... [2024-11-17 07:46:06,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1c740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:46:06, skipping insertion in model container [2024-11-17 07:46:06,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:46:05" (2/3) ... [2024-11-17 07:46:06,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1c740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:46:06, skipping insertion in model container [2024-11-17 07:46:06,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:46:06" (3/3) ... [2024-11-17 07:46:06,026 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-17 07:46:06,043 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:46:06,044 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-17 07:46:06,045 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:46:06,090 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 07:46:06,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 55 transitions, 114 flow [2024-11-17 07:46:06,166 INFO L124 PetriNetUnfolderBase]: 6/54 cut-off events. [2024-11-17 07:46:06,167 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:46:06,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 54 events. 6/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-17 07:46:06,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 55 transitions, 114 flow [2024-11-17 07:46:06,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 54 transitions, 111 flow [2024-11-17 07:46:06,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:46:06,190 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;@e48030, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:46:06,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-17 07:46:06,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:46:06,195 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:46:06,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:46:06,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:06,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:46:06,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:06,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:06,202 INFO L85 PathProgramCache]: Analyzing trace with hash 11677821, now seen corresponding path program 1 times [2024-11-17 07:46:06,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:06,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728670192] [2024-11-17 07:46:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:06,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:06,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:06,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728670192] [2024-11-17 07:46:06,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728670192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:06,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:06,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:46:06,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045695295] [2024-11-17 07:46:06,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:06,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:46:06,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:06,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:46:06,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:46:06,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:06,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 54 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:06,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:06,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:06,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:06,800 INFO L124 PetriNetUnfolderBase]: 119/375 cut-off events. [2024-11-17 07:46:06,801 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:46:06,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 375 events. 119/375 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2034 event pairs, 96 based on Foata normal form. 25/352 useless extension candidates. Maximal degree in co-relation 595. Up to 243 conditions per place. [2024-11-17 07:46:06,806 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 29 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-11-17 07:46:06,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 53 transitions, 173 flow [2024-11-17 07:46:06,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:46:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:46:06,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-17 07:46:06,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5772727272727273 [2024-11-17 07:46:06,823 INFO L175 Difference]: Start difference. First operand has 52 places, 54 transitions, 111 flow. Second operand 4 states and 127 transitions. [2024-11-17 07:46:06,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 53 transitions, 173 flow [2024-11-17 07:46:06,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:06,851 INFO L231 Difference]: Finished difference. Result has 56 places, 53 transitions, 128 flow [2024-11-17 07:46:06,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=56, PETRI_TRANSITIONS=53} [2024-11-17 07:46:06,859 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2024-11-17 07:46:06,860 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 53 transitions, 128 flow [2024-11-17 07:46:06,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:06,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:06,862 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:46:06,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:46:06,862 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:06,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash 59848473, now seen corresponding path program 1 times [2024-11-17 07:46:06,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:06,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961033055] [2024-11-17 07:46:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:07,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:07,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961033055] [2024-11-17 07:46:07,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961033055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:46:07,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77702189] [2024-11-17 07:46:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:07,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:07,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:07,053 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) [2024-11-17 07:46:07,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:46:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:07,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:46:07,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:46:07,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:07,221 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:46:07,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77702189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:07,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:46:07,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:46:07,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778501350] [2024-11-17 07:46:07,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:07,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:46:07,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:07,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:46:07,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:07,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:07,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:07,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:07,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:07,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:07,423 INFO L124 PetriNetUnfolderBase]: 119/374 cut-off events. [2024-11-17 07:46:07,425 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-17 07:46:07,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 374 events. 119/374 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2020 event pairs, 96 based on Foata normal form. 1/327 useless extension candidates. Maximal degree in co-relation 615. Up to 237 conditions per place. [2024-11-17 07:46:07,429 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 25 selfloop transitions, 6 changer transitions 0/52 dead transitions. [2024-11-17 07:46:07,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 52 transitions, 186 flow [2024-11-17 07:46:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:46:07,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:46:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 164 transitions. [2024-11-17 07:46:07,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2024-11-17 07:46:07,433 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 128 flow. Second operand 6 states and 164 transitions. [2024-11-17 07:46:07,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 52 transitions, 186 flow [2024-11-17 07:46:07,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 52 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:07,435 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 134 flow [2024-11-17 07:46:07,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2024-11-17 07:46:07,436 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2024-11-17 07:46:07,436 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 134 flow [2024-11-17 07:46:07,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:07,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:07,437 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:46:07,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:46:07,638 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 [2024-11-17 07:46:07,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:07,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:07,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1855302979, now seen corresponding path program 1 times [2024-11-17 07:46:07,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:07,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088982173] [2024-11-17 07:46:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:07,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:46:07,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:07,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088982173] [2024-11-17 07:46:07,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088982173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:07,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:07,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:46:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177833719] [2024-11-17 07:46:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:07,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:46:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:07,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:46:07,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:46:07,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:07,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:07,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:07,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:07,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:07,794 INFO L124 PetriNetUnfolderBase]: 119/373 cut-off events. [2024-11-17 07:46:07,795 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-17 07:46:07,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 373 events. 119/373 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2033 event pairs, 96 based on Foata normal form. 1/328 useless extension candidates. Maximal degree in co-relation 610. Up to 240 conditions per place. [2024-11-17 07:46:07,800 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 25 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-11-17 07:46:07,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 51 transitions, 188 flow [2024-11-17 07:46:07,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:46:07,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:46:07,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-17 07:46:07,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5878787878787879 [2024-11-17 07:46:07,803 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 134 flow. Second operand 3 states and 97 transitions. [2024-11-17 07:46:07,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 51 transitions, 188 flow [2024-11-17 07:46:07,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 51 transitions, 178 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:46:07,805 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 128 flow [2024-11-17 07:46:07,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2024-11-17 07:46:07,808 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2024-11-17 07:46:07,808 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 128 flow [2024-11-17 07:46:07,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:07,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:07,809 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:07,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:46:07,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:07,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:07,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2107028358, now seen corresponding path program 1 times [2024-11-17 07:46:07,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:07,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125714723] [2024-11-17 07:46:07,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:07,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:07,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:07,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125714723] [2024-11-17 07:46:07,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125714723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:46:07,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74608599] [2024-11-17 07:46:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:07,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:07,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:07,923 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) [2024-11-17 07:46:07,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:46:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:08,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:46:08,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:46:08,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:08,043 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:46:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:08,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74608599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:46:08,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:46:08,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-17 07:46:08,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079003806] [2024-11-17 07:46:08,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:46:08,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:08,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:08,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:08,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:08,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:08,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 128 flow. Second operand has 10 states, 10 states have (on average 23.7) internal successors, (237), 10 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:08,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:08,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:08,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:08,307 INFO L124 PetriNetUnfolderBase]: 119/379 cut-off events. [2024-11-17 07:46:08,307 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-17 07:46:08,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 379 events. 119/379 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2009 event pairs, 96 based on Foata normal form. 2/335 useless extension candidates. Maximal degree in co-relation 605. Up to 239 conditions per place. [2024-11-17 07:46:08,314 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 26 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-11-17 07:46:08,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 216 flow [2024-11-17 07:46:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:46:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:46:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2024-11-17 07:46:08,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-11-17 07:46:08,320 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 128 flow. Second operand 7 states and 189 transitions. [2024-11-17 07:46:08,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 216 flow [2024-11-17 07:46:08,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:08,323 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 161 flow [2024-11-17 07:46:08,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=161, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2024-11-17 07:46:08,324 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 10 predicate places. [2024-11-17 07:46:08,324 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 161 flow [2024-11-17 07:46:08,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.7) internal successors, (237), 10 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:08,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:08,325 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:08,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:46:08,525 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 [2024-11-17 07:46:08,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:08,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:08,527 INFO L85 PathProgramCache]: Analyzing trace with hash 195213890, now seen corresponding path program 2 times [2024-11-17 07:46:08,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:08,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875135947] [2024-11-17 07:46:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:08,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:08,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:08,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875135947] [2024-11-17 07:46:08,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875135947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:46:08,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494458562] [2024-11-17 07:46:08,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:46:08,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:08,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:08,696 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) [2024-11-17 07:46:08,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:46:08,772 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:46:08,773 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:46:08,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 07:46:08,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:46:09,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 07:46:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:46:09,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:46:09,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494458562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:09,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:46:09,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-11-17 07:46:09,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768798106] [2024-11-17 07:46:09,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:09,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:46:09,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:09,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:46:09,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-17 07:46:09,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:09,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:09,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:09,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:09,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:09,460 INFO L124 PetriNetUnfolderBase]: 351/921 cut-off events. [2024-11-17 07:46:09,460 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-17 07:46:09,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1650 conditions, 921 events. 351/921 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5607 event pairs, 95 based on Foata normal form. 22/816 useless extension candidates. Maximal degree in co-relation 1600. Up to 321 conditions per place. [2024-11-17 07:46:09,466 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 101 selfloop transitions, 16 changer transitions 0/136 dead transitions. [2024-11-17 07:46:09,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 136 transitions, 559 flow [2024-11-17 07:46:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 291 transitions. [2024-11-17 07:46:09,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6613636363636364 [2024-11-17 07:46:09,468 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 161 flow. Second operand 8 states and 291 transitions. [2024-11-17 07:46:09,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 136 transitions, 559 flow [2024-11-17 07:46:09,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 136 transitions, 551 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:09,471 INFO L231 Difference]: Finished difference. Result has 73 places, 70 transitions, 273 flow [2024-11-17 07:46:09,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=273, PETRI_PLACES=73, PETRI_TRANSITIONS=70} [2024-11-17 07:46:09,472 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 21 predicate places. [2024-11-17 07:46:09,472 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 70 transitions, 273 flow [2024-11-17 07:46:09,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:09,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:09,473 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:09,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:46:09,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:09,678 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:09,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:09,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1076324502, now seen corresponding path program 1 times [2024-11-17 07:46:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:09,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676442680] [2024-11-17 07:46:09,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:09,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:46:09,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:09,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676442680] [2024-11-17 07:46:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676442680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:09,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:46:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674283158] [2024-11-17 07:46:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:46:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:09,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:46:09,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:46:09,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-17 07:46:09,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 70 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:09,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:09,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-17 07:46:09,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:09,901 INFO L124 PetriNetUnfolderBase]: 270/798 cut-off events. [2024-11-17 07:46:09,901 INFO L125 PetriNetUnfolderBase]: For 376/421 co-relation queries the response was YES. [2024-11-17 07:46:09,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 798 events. 270/798 cut-off events. For 376/421 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4710 event pairs, 57 based on Foata normal form. 11/741 useless extension candidates. Maximal degree in co-relation 1667. Up to 303 conditions per place. [2024-11-17 07:46:09,906 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 70 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-11-17 07:46:09,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 95 transitions, 515 flow [2024-11-17 07:46:09,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:46:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:46:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-11-17 07:46:09,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7090909090909091 [2024-11-17 07:46:09,908 INFO L175 Difference]: Start difference. First operand has 73 places, 70 transitions, 273 flow. Second operand 3 states and 117 transitions. [2024-11-17 07:46:09,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 95 transitions, 515 flow [2024-11-17 07:46:09,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 95 transitions, 515 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:46:09,913 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 285 flow [2024-11-17 07:46:09,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2024-11-17 07:46:09,914 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 24 predicate places. [2024-11-17 07:46:09,915 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 285 flow [2024-11-17 07:46:09,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:09,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:09,915 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:09,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:46:09,915 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:09,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:09,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1076309881, now seen corresponding path program 1 times [2024-11-17 07:46:09,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:09,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610645243] [2024-11-17 07:46:09,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:09,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:10,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:10,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610645243] [2024-11-17 07:46:10,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610645243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:46:10,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195834405] [2024-11-17 07:46:10,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:10,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:10,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:10,033 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) [2024-11-17 07:46:10,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:46:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:10,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:46:10,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:46:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:10,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:46:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:10,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195834405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:46:10,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:46:10,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-17 07:46:10,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452453047] [2024-11-17 07:46:10,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:46:10,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 07:46:10,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 07:46:10,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 07:46:10,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:10,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 285 flow. Second operand has 18 states, 18 states have (on average 23.38888888888889) internal successors, (421), 18 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:10,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:10,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:10,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:10,482 INFO L124 PetriNetUnfolderBase]: 260/820 cut-off events. [2024-11-17 07:46:10,483 INFO L125 PetriNetUnfolderBase]: For 523/554 co-relation queries the response was YES. [2024-11-17 07:46:10,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1850 conditions, 820 events. 260/820 cut-off events. For 523/554 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4842 event pairs, 138 based on Foata normal form. 7/770 useless extension candidates. Maximal degree in co-relation 1746. Up to 518 conditions per place. [2024-11-17 07:46:10,488 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 41 selfloop transitions, 15 changer transitions 0/79 dead transitions. [2024-11-17 07:46:10,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 79 transitions, 461 flow [2024-11-17 07:46:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 07:46:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 07:46:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 375 transitions. [2024-11-17 07:46:10,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2024-11-17 07:46:10,491 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 285 flow. Second operand 15 states and 375 transitions. [2024-11-17 07:46:10,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 79 transitions, 461 flow [2024-11-17 07:46:10,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 79 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:10,496 INFO L231 Difference]: Finished difference. Result has 93 places, 79 transitions, 396 flow [2024-11-17 07:46:10,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=396, PETRI_PLACES=93, PETRI_TRANSITIONS=79} [2024-11-17 07:46:10,497 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 41 predicate places. [2024-11-17 07:46:10,497 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 79 transitions, 396 flow [2024-11-17 07:46:10,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 23.38888888888889) internal successors, (421), 18 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:10,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:10,498 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:10,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:46:10,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:10,702 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:10,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1212208151, now seen corresponding path program 2 times [2024-11-17 07:46:10,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:10,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189522836] [2024-11-17 07:46:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:10,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:10,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189522836] [2024-11-17 07:46:10,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189522836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:46:10,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620321692] [2024-11-17 07:46:11,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:46:11,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:11,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:11,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:46:11,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:46:11,080 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:46:11,081 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:46:11,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 07:46:11,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:46:11,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 07:46:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-17 07:46:11,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:46:11,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620321692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:11,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:46:11,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 20 [2024-11-17 07:46:11,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181854021] [2024-11-17 07:46:11,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:11,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:46:11,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:11,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:46:11,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-17 07:46:11,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:11,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 79 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:11,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:11,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:11,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:11,913 INFO L124 PetriNetUnfolderBase]: 461/1280 cut-off events. [2024-11-17 07:46:11,913 INFO L125 PetriNetUnfolderBase]: For 785/859 co-relation queries the response was YES. [2024-11-17 07:46:11,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2952 conditions, 1280 events. 461/1280 cut-off events. For 785/859 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8288 event pairs, 80 based on Foata normal form. 35/1252 useless extension candidates. Maximal degree in co-relation 2824. Up to 582 conditions per place. [2024-11-17 07:46:11,923 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 111 selfloop transitions, 32 changer transitions 0/164 dead transitions. [2024-11-17 07:46:11,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 164 transitions, 1017 flow [2024-11-17 07:46:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:11,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2024-11-17 07:46:11,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6113636363636363 [2024-11-17 07:46:11,925 INFO L175 Difference]: Start difference. First operand has 93 places, 79 transitions, 396 flow. Second operand 8 states and 269 transitions. [2024-11-17 07:46:11,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 164 transitions, 1017 flow [2024-11-17 07:46:11,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 164 transitions, 999 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 07:46:11,933 INFO L231 Difference]: Finished difference. Result has 102 places, 110 transitions, 684 flow [2024-11-17 07:46:11,934 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=684, PETRI_PLACES=102, PETRI_TRANSITIONS=110} [2024-11-17 07:46:11,935 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 50 predicate places. [2024-11-17 07:46:11,935 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 110 transitions, 684 flow [2024-11-17 07:46:11,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:11,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:11,935 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:11,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 07:46:12,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:12,137 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:12,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:12,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1076252696, now seen corresponding path program 1 times [2024-11-17 07:46:12,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:12,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461217213] [2024-11-17 07:46:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:12,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:12,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:12,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461217213] [2024-11-17 07:46:12,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461217213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:46:12,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850005450] [2024-11-17 07:46:12,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:12,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:12,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:46:12,433 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:46:12,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:46:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:12,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 07:46:12,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:46:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:12,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:46:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:46:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850005450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:46:12,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:46:12,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-17 07:46:12,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256567802] [2024-11-17 07:46:12,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:46:12,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-17 07:46:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:12,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-17 07:46:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-17 07:46:12,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:12,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 110 transitions, 684 flow. Second operand has 23 states, 23 states have (on average 23.347826086956523) internal successors, (537), 23 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:12,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:12,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:12,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:13,205 INFO L124 PetriNetUnfolderBase]: 362/1119 cut-off events. [2024-11-17 07:46:13,205 INFO L125 PetriNetUnfolderBase]: For 1716/1814 co-relation queries the response was YES. [2024-11-17 07:46:13,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2997 conditions, 1119 events. 362/1119 cut-off events. For 1716/1814 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 6974 event pairs, 159 based on Foata normal form. 27/1093 useless extension candidates. Maximal degree in co-relation 2825. Up to 722 conditions per place. [2024-11-17 07:46:13,215 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 70 selfloop transitions, 21 changer transitions 0/116 dead transitions. [2024-11-17 07:46:13,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 116 transitions, 932 flow [2024-11-17 07:46:13,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:46:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:46:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 512 transitions. [2024-11-17 07:46:13,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4432900432900433 [2024-11-17 07:46:13,218 INFO L175 Difference]: Start difference. First operand has 102 places, 110 transitions, 684 flow. Second operand 21 states and 512 transitions. [2024-11-17 07:46:13,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 116 transitions, 932 flow [2024-11-17 07:46:13,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 116 transitions, 932 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:46:13,229 INFO L231 Difference]: Finished difference. Result has 125 places, 116 transitions, 807 flow [2024-11-17 07:46:13,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=807, PETRI_PLACES=125, PETRI_TRANSITIONS=116} [2024-11-17 07:46:13,231 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 73 predicate places. [2024-11-17 07:46:13,231 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 116 transitions, 807 flow [2024-11-17 07:46:13,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 23.347826086956523) internal successors, (537), 23 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:13,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:13,233 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:13,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:46:13,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:46:13,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:13,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1866837400, now seen corresponding path program 1 times [2024-11-17 07:46:13,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:13,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850122422] [2024-11-17 07:46:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:13,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:13,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:13,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850122422] [2024-11-17 07:46:13,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850122422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:13,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:13,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:46:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230262842] [2024-11-17 07:46:13,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:13,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:46:13,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:13,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:46:13,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:46:13,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:13,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 116 transitions, 807 flow. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:13,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:13,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:13,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:14,126 INFO L124 PetriNetUnfolderBase]: 473/1358 cut-off events. [2024-11-17 07:46:14,127 INFO L125 PetriNetUnfolderBase]: For 2114/2151 co-relation queries the response was YES. [2024-11-17 07:46:14,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3708 conditions, 1358 events. 473/1358 cut-off events. For 2114/2151 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 8657 event pairs, 187 based on Foata normal form. 42/1293 useless extension candidates. Maximal degree in co-relation 3507. Up to 884 conditions per place. [2024-11-17 07:46:14,139 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 105 selfloop transitions, 18 changer transitions 0/144 dead transitions. [2024-11-17 07:46:14,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 144 transitions, 1175 flow [2024-11-17 07:46:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:46:14,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:46:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 224 transitions. [2024-11-17 07:46:14,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818 [2024-11-17 07:46:14,140 INFO L175 Difference]: Start difference. First operand has 125 places, 116 transitions, 807 flow. Second operand 7 states and 224 transitions. [2024-11-17 07:46:14,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 144 transitions, 1175 flow [2024-11-17 07:46:14,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 144 transitions, 1108 flow, removed 4 selfloop flow, removed 14 redundant places. [2024-11-17 07:46:14,151 INFO L231 Difference]: Finished difference. Result has 117 places, 115 transitions, 770 flow [2024-11-17 07:46:14,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=770, PETRI_PLACES=117, PETRI_TRANSITIONS=115} [2024-11-17 07:46:14,153 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 65 predicate places. [2024-11-17 07:46:14,154 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 115 transitions, 770 flow [2024-11-17 07:46:14,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:14,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:14,154 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:14,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:46:14,155 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:14,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:14,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1104306108, now seen corresponding path program 2 times [2024-11-17 07:46:14,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:14,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648631286] [2024-11-17 07:46:14,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:14,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:14,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:14,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648631286] [2024-11-17 07:46:14,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648631286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:14,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:14,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:46:14,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361663369] [2024-11-17 07:46:14,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:14,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:46:14,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:14,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:46:14,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:46:14,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:14,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 770 flow. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:14,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:14,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:14,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:14,753 INFO L124 PetriNetUnfolderBase]: 440/1259 cut-off events. [2024-11-17 07:46:14,753 INFO L125 PetriNetUnfolderBase]: For 1770/1791 co-relation queries the response was YES. [2024-11-17 07:46:14,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3476 conditions, 1259 events. 440/1259 cut-off events. For 1770/1791 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 8070 event pairs, 179 based on Foata normal form. 21/1226 useless extension candidates. Maximal degree in co-relation 3299. Up to 814 conditions per place. [2024-11-17 07:46:14,764 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 101 selfloop transitions, 18 changer transitions 0/139 dead transitions. [2024-11-17 07:46:14,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 139 transitions, 1129 flow [2024-11-17 07:46:14,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:46:14,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:46:14,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 220 transitions. [2024-11-17 07:46:14,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-17 07:46:14,766 INFO L175 Difference]: Start difference. First operand has 117 places, 115 transitions, 770 flow. Second operand 7 states and 220 transitions. [2024-11-17 07:46:14,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 139 transitions, 1129 flow [2024-11-17 07:46:14,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 139 transitions, 1087 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:46:14,777 INFO L231 Difference]: Finished difference. Result has 120 places, 114 transitions, 761 flow [2024-11-17 07:46:14,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=761, PETRI_PLACES=120, PETRI_TRANSITIONS=114} [2024-11-17 07:46:14,779 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 68 predicate places. [2024-11-17 07:46:14,779 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 114 transitions, 761 flow [2024-11-17 07:46:14,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:14,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:14,780 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:14,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:46:14,780 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:14,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:14,780 INFO L85 PathProgramCache]: Analyzing trace with hash -578130304, now seen corresponding path program 1 times [2024-11-17 07:46:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:14,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864416645] [2024-11-17 07:46:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:14,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:14,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:14,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864416645] [2024-11-17 07:46:14,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864416645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:14,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:14,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:46:14,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603397358] [2024-11-17 07:46:14,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:14,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:46:14,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:14,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:46:14,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:46:14,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:14,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 114 transitions, 761 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:14,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:14,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:14,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:15,130 INFO L124 PetriNetUnfolderBase]: 514/1470 cut-off events. [2024-11-17 07:46:15,130 INFO L125 PetriNetUnfolderBase]: For 1652/1659 co-relation queries the response was YES. [2024-11-17 07:46:15,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3878 conditions, 1470 events. 514/1470 cut-off events. For 1652/1659 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9406 event pairs, 247 based on Foata normal form. 42/1428 useless extension candidates. Maximal degree in co-relation 3701. Up to 616 conditions per place. [2024-11-17 07:46:15,144 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 130 selfloop transitions, 6 changer transitions 0/157 dead transitions. [2024-11-17 07:46:15,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 157 transitions, 1214 flow [2024-11-17 07:46:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:46:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:46:15,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2024-11-17 07:46:15,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-17 07:46:15,146 INFO L175 Difference]: Start difference. First operand has 120 places, 114 transitions, 761 flow. Second operand 4 states and 154 transitions. [2024-11-17 07:46:15,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 157 transitions, 1214 flow [2024-11-17 07:46:15,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 157 transitions, 1193 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:15,156 INFO L231 Difference]: Finished difference. Result has 123 places, 116 transitions, 779 flow [2024-11-17 07:46:15,156 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=779, PETRI_PLACES=123, PETRI_TRANSITIONS=116} [2024-11-17 07:46:15,157 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 71 predicate places. [2024-11-17 07:46:15,157 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 116 transitions, 779 flow [2024-11-17 07:46:15,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:15,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:15,157 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:15,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 07:46:15,158 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:15,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:15,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1065856019, now seen corresponding path program 1 times [2024-11-17 07:46:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:15,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572498313] [2024-11-17 07:46:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:15,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:15,225 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:15,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:15,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572498313] [2024-11-17 07:46:15,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572498313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:15,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:15,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:46:15,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430096640] [2024-11-17 07:46:15,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:15,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:46:15,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:15,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:46:15,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:46:15,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:15,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 116 transitions, 779 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:15,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:15,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:15,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:15,501 INFO L124 PetriNetUnfolderBase]: 502/1421 cut-off events. [2024-11-17 07:46:15,502 INFO L125 PetriNetUnfolderBase]: For 2072/2082 co-relation queries the response was YES. [2024-11-17 07:46:15,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4028 conditions, 1421 events. 502/1421 cut-off events. For 2072/2082 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8983 event pairs, 247 based on Foata normal form. 34/1441 useless extension candidates. Maximal degree in co-relation 3849. Up to 701 conditions per place. [2024-11-17 07:46:15,515 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 125 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2024-11-17 07:46:15,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 152 transitions, 1233 flow [2024-11-17 07:46:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:46:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:46:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-11-17 07:46:15,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-17 07:46:15,517 INFO L175 Difference]: Start difference. First operand has 123 places, 116 transitions, 779 flow. Second operand 4 states and 145 transitions. [2024-11-17 07:46:15,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 152 transitions, 1233 flow [2024-11-17 07:46:15,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 152 transitions, 1223 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:15,528 INFO L231 Difference]: Finished difference. Result has 127 places, 117 transitions, 805 flow [2024-11-17 07:46:15,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=805, PETRI_PLACES=127, PETRI_TRANSITIONS=117} [2024-11-17 07:46:15,529 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 75 predicate places. [2024-11-17 07:46:15,529 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 117 transitions, 805 flow [2024-11-17 07:46:15,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:15,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:15,529 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:15,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:46:15,530 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:15,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:15,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1819378222, now seen corresponding path program 1 times [2024-11-17 07:46:15,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:15,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042385488] [2024-11-17 07:46:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:15,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:15,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:15,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042385488] [2024-11-17 07:46:15,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042385488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:15,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:15,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:15,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454634542] [2024-11-17 07:46:15,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:15,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:15,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:15,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:15,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:15,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:15,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 117 transitions, 805 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:15,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:15,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:15,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:16,378 INFO L124 PetriNetUnfolderBase]: 583/1614 cut-off events. [2024-11-17 07:46:16,378 INFO L125 PetriNetUnfolderBase]: For 2963/2998 co-relation queries the response was YES. [2024-11-17 07:46:16,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4883 conditions, 1614 events. 583/1614 cut-off events. For 2963/2998 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10412 event pairs, 236 based on Foata normal form. 8/1600 useless extension candidates. Maximal degree in co-relation 4702. Up to 560 conditions per place. [2024-11-17 07:46:16,392 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 171 selfloop transitions, 31 changer transitions 0/224 dead transitions. [2024-11-17 07:46:16,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 224 transitions, 1909 flow [2024-11-17 07:46:16,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:16,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 275 transitions. [2024-11-17 07:46:16,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-17 07:46:16,394 INFO L175 Difference]: Start difference. First operand has 127 places, 117 transitions, 805 flow. Second operand 8 states and 275 transitions. [2024-11-17 07:46:16,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 224 transitions, 1909 flow [2024-11-17 07:46:16,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 224 transitions, 1889 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:16,406 INFO L231 Difference]: Finished difference. Result has 137 places, 145 transitions, 1157 flow [2024-11-17 07:46:16,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1157, PETRI_PLACES=137, PETRI_TRANSITIONS=145} [2024-11-17 07:46:16,407 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 85 predicate places. [2024-11-17 07:46:16,407 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 145 transitions, 1157 flow [2024-11-17 07:46:16,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:16,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:16,408 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:16,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 07:46:16,408 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:16,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:16,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1992081241, now seen corresponding path program 1 times [2024-11-17 07:46:16,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:16,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950466093] [2024-11-17 07:46:16,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:16,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:16,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950466093] [2024-11-17 07:46:16,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950466093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:16,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:16,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:46:16,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282708541] [2024-11-17 07:46:16,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:16,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:46:16,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:16,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:46:16,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:46:17,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:17,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 145 transitions, 1157 flow. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:17,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:17,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:17,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:17,953 INFO L124 PetriNetUnfolderBase]: 888/2240 cut-off events. [2024-11-17 07:46:17,954 INFO L125 PetriNetUnfolderBase]: For 6594/6607 co-relation queries the response was YES. [2024-11-17 07:46:17,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8110 conditions, 2240 events. 888/2240 cut-off events. For 6594/6607 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 14939 event pairs, 352 based on Foata normal form. 48/2259 useless extension candidates. Maximal degree in co-relation 7923. Up to 1520 conditions per place. [2024-11-17 07:46:17,979 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 176 selfloop transitions, 76 changer transitions 0/269 dead transitions. [2024-11-17 07:46:17,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 269 transitions, 2593 flow [2024-11-17 07:46:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-17 07:46:17,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-17 07:46:17,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 608 transitions. [2024-11-17 07:46:17,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4806324110671937 [2024-11-17 07:46:17,984 INFO L175 Difference]: Start difference. First operand has 137 places, 145 transitions, 1157 flow. Second operand 23 states and 608 transitions. [2024-11-17 07:46:17,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 269 transitions, 2593 flow [2024-11-17 07:46:18,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 269 transitions, 2592 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:18,008 INFO L231 Difference]: Finished difference. Result has 168 places, 203 transitions, 1923 flow [2024-11-17 07:46:18,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1923, PETRI_PLACES=168, PETRI_TRANSITIONS=203} [2024-11-17 07:46:18,009 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 116 predicate places. [2024-11-17 07:46:18,009 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 203 transitions, 1923 flow [2024-11-17 07:46:18,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:18,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:18,009 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:18,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 07:46:18,009 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:18,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:18,010 INFO L85 PathProgramCache]: Analyzing trace with hash 414829118, now seen corresponding path program 2 times [2024-11-17 07:46:18,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:18,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230554234] [2024-11-17 07:46:18,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:18,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:18,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:18,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230554234] [2024-11-17 07:46:18,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230554234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:18,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:18,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:18,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706190749] [2024-11-17 07:46:18,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:18,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:18,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:18,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:18,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:18,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:18,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 203 transitions, 1923 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:18,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:18,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:18,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:18,948 INFO L124 PetriNetUnfolderBase]: 734/2012 cut-off events. [2024-11-17 07:46:18,948 INFO L125 PetriNetUnfolderBase]: For 8813/8889 co-relation queries the response was YES. [2024-11-17 07:46:18,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8451 conditions, 2012 events. 734/2012 cut-off events. For 8813/8889 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 13620 event pairs, 223 based on Foata normal form. 7/2005 useless extension candidates. Maximal degree in co-relation 8253. Up to 669 conditions per place. [2024-11-17 07:46:18,971 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 292 selfloop transitions, 39 changer transitions 0/353 dead transitions. [2024-11-17 07:46:18,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 353 transitions, 4075 flow [2024-11-17 07:46:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:18,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:18,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 270 transitions. [2024-11-17 07:46:18,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-17 07:46:18,973 INFO L175 Difference]: Start difference. First operand has 168 places, 203 transitions, 1923 flow. Second operand 8 states and 270 transitions. [2024-11-17 07:46:18,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 353 transitions, 4075 flow [2024-11-17 07:46:19,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 353 transitions, 3887 flow, removed 53 selfloop flow, removed 4 redundant places. [2024-11-17 07:46:19,012 INFO L231 Difference]: Finished difference. Result has 176 places, 232 transitions, 2264 flow [2024-11-17 07:46:19,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1828, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2264, PETRI_PLACES=176, PETRI_TRANSITIONS=232} [2024-11-17 07:46:19,014 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 124 predicate places. [2024-11-17 07:46:19,014 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 232 transitions, 2264 flow [2024-11-17 07:46:19,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:19,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:19,015 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:19,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-17 07:46:19,015 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:19,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash -420818342, now seen corresponding path program 3 times [2024-11-17 07:46:19,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:19,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032545788] [2024-11-17 07:46:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:19,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:19,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:19,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032545788] [2024-11-17 07:46:19,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032545788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:19,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:19,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:19,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421219707] [2024-11-17 07:46:19,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:19,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 07:46:19,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:19,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 07:46:19,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:46:19,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:19,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 232 transitions, 2264 flow. Second operand has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 9 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:19,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:19,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:19,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:20,232 INFO L124 PetriNetUnfolderBase]: 918/2484 cut-off events. [2024-11-17 07:46:20,232 INFO L125 PetriNetUnfolderBase]: For 12395/12507 co-relation queries the response was YES. [2024-11-17 07:46:20,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10967 conditions, 2484 events. 918/2484 cut-off events. For 12395/12507 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 17705 event pairs, 123 based on Foata normal form. 5/2472 useless extension candidates. Maximal degree in co-relation 10763. Up to 664 conditions per place. [2024-11-17 07:46:20,268 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 269 selfloop transitions, 114 changer transitions 0/405 dead transitions. [2024-11-17 07:46:20,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 405 transitions, 4608 flow [2024-11-17 07:46:20,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 07:46:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 07:46:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 386 transitions. [2024-11-17 07:46:20,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5848484848484848 [2024-11-17 07:46:20,270 INFO L175 Difference]: Start difference. First operand has 176 places, 232 transitions, 2264 flow. Second operand 12 states and 386 transitions. [2024-11-17 07:46:20,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 405 transitions, 4608 flow [2024-11-17 07:46:20,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 405 transitions, 4573 flow, removed 17 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:20,329 INFO L231 Difference]: Finished difference. Result has 193 places, 291 transitions, 3307 flow [2024-11-17 07:46:20,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=2241, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3307, PETRI_PLACES=193, PETRI_TRANSITIONS=291} [2024-11-17 07:46:20,330 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 141 predicate places. [2024-11-17 07:46:20,330 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 291 transitions, 3307 flow [2024-11-17 07:46:20,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 9 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:20,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:20,331 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:20,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 07:46:20,331 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:20,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:20,331 INFO L85 PathProgramCache]: Analyzing trace with hash -837713002, now seen corresponding path program 4 times [2024-11-17 07:46:20,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:20,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203212277] [2024-11-17 07:46:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:20,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:20,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:20,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203212277] [2024-11-17 07:46:20,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203212277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:20,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:20,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:20,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539023347] [2024-11-17 07:46:20,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:20,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:20,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:20,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:20,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:20,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:20,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 291 transitions, 3307 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:20,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:20,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:20,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:21,389 INFO L124 PetriNetUnfolderBase]: 917/2496 cut-off events. [2024-11-17 07:46:21,390 INFO L125 PetriNetUnfolderBase]: For 17043/17161 co-relation queries the response was YES. [2024-11-17 07:46:21,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12056 conditions, 2496 events. 917/2496 cut-off events. For 17043/17161 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 17799 event pairs, 271 based on Foata normal form. 8/2484 useless extension candidates. Maximal degree in co-relation 11844. Up to 880 conditions per place. [2024-11-17 07:46:21,415 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 336 selfloop transitions, 56 changer transitions 0/414 dead transitions. [2024-11-17 07:46:21,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 414 transitions, 5431 flow [2024-11-17 07:46:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:21,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 273 transitions. [2024-11-17 07:46:21,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204545454545455 [2024-11-17 07:46:21,417 INFO L175 Difference]: Start difference. First operand has 193 places, 291 transitions, 3307 flow. Second operand 8 states and 273 transitions. [2024-11-17 07:46:21,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 414 transitions, 5431 flow [2024-11-17 07:46:21,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 414 transitions, 5226 flow, removed 87 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:21,480 INFO L231 Difference]: Finished difference. Result has 201 places, 304 transitions, 3540 flow [2024-11-17 07:46:21,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=3163, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3540, PETRI_PLACES=201, PETRI_TRANSITIONS=304} [2024-11-17 07:46:21,482 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 149 predicate places. [2024-11-17 07:46:21,482 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 304 transitions, 3540 flow [2024-11-17 07:46:21,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:21,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:21,483 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:21,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 07:46:21,483 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:21,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:21,483 INFO L85 PathProgramCache]: Analyzing trace with hash -868502424, now seen corresponding path program 5 times [2024-11-17 07:46:21,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:21,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685588576] [2024-11-17 07:46:21,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:21,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:21,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:21,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685588576] [2024-11-17 07:46:21,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685588576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:21,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:21,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138532169] [2024-11-17 07:46:21,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:21,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 07:46:21,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:21,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 07:46:21,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:46:21,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:21,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 304 transitions, 3540 flow. Second operand has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 9 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:21,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:21,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:21,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:22,651 INFO L124 PetriNetUnfolderBase]: 917/2503 cut-off events. [2024-11-17 07:46:22,651 INFO L125 PetriNetUnfolderBase]: For 16109/16224 co-relation queries the response was YES. [2024-11-17 07:46:22,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11863 conditions, 2503 events. 917/2503 cut-off events. For 16109/16224 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 17942 event pairs, 139 based on Foata normal form. 9/2492 useless extension candidates. Maximal degree in co-relation 11647. Up to 664 conditions per place. [2024-11-17 07:46:22,684 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 310 selfloop transitions, 108 changer transitions 0/440 dead transitions. [2024-11-17 07:46:22,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 440 transitions, 5655 flow [2024-11-17 07:46:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 07:46:22,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-17 07:46:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 419 transitions. [2024-11-17 07:46:22,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.586013986013986 [2024-11-17 07:46:22,686 INFO L175 Difference]: Start difference. First operand has 201 places, 304 transitions, 3540 flow. Second operand 13 states and 419 transitions. [2024-11-17 07:46:22,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 440 transitions, 5655 flow [2024-11-17 07:46:22,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 440 transitions, 5532 flow, removed 22 selfloop flow, removed 4 redundant places. [2024-11-17 07:46:22,756 INFO L231 Difference]: Finished difference. Result has 213 places, 322 transitions, 3995 flow [2024-11-17 07:46:22,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=3429, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3995, PETRI_PLACES=213, PETRI_TRANSITIONS=322} [2024-11-17 07:46:22,757 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 161 predicate places. [2024-11-17 07:46:22,757 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 322 transitions, 3995 flow [2024-11-17 07:46:22,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 9 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:22,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:22,757 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:22,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-17 07:46:22,757 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:22,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:22,758 INFO L85 PathProgramCache]: Analyzing trace with hash 412513005, now seen corresponding path program 2 times [2024-11-17 07:46:22,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:22,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142514897] [2024-11-17 07:46:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:22,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:23,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:23,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142514897] [2024-11-17 07:46:23,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142514897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:23,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:23,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:23,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144278875] [2024-11-17 07:46:23,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:23,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:23,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:23,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:23,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:23,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:23,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 322 transitions, 3995 flow. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:23,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:23,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:23,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:24,417 INFO L124 PetriNetUnfolderBase]: 1340/3355 cut-off events. [2024-11-17 07:46:24,418 INFO L125 PetriNetUnfolderBase]: For 26138/26154 co-relation queries the response was YES. [2024-11-17 07:46:24,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16691 conditions, 3355 events. 1340/3355 cut-off events. For 26138/26154 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 24995 event pairs, 570 based on Foata normal form. 48/3373 useless extension candidates. Maximal degree in co-relation 16471. Up to 2446 conditions per place. [2024-11-17 07:46:24,466 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 302 selfloop transitions, 101 changer transitions 0/420 dead transitions. [2024-11-17 07:46:24,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 420 transitions, 5896 flow [2024-11-17 07:46:24,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 07:46:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-17 07:46:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 480 transitions. [2024-11-17 07:46:24,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2024-11-17 07:46:24,468 INFO L175 Difference]: Start difference. First operand has 213 places, 322 transitions, 3995 flow. Second operand 18 states and 480 transitions. [2024-11-17 07:46:24,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 420 transitions, 5896 flow [2024-11-17 07:46:24,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 420 transitions, 5727 flow, removed 55 selfloop flow, removed 4 redundant places. [2024-11-17 07:46:24,571 INFO L231 Difference]: Finished difference. Result has 234 places, 359 transitions, 4573 flow [2024-11-17 07:46:24,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=3852, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4573, PETRI_PLACES=234, PETRI_TRANSITIONS=359} [2024-11-17 07:46:24,572 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 182 predicate places. [2024-11-17 07:46:24,572 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 359 transitions, 4573 flow [2024-11-17 07:46:24,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:24,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:24,573 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:24,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-17 07:46:24,573 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:24,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash -664197380, now seen corresponding path program 6 times [2024-11-17 07:46:24,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:24,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237037997] [2024-11-17 07:46:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:24,865 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:24,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:24,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237037997] [2024-11-17 07:46:24,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237037997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:24,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:24,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:24,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705798163] [2024-11-17 07:46:24,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:24,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:24,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:24,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:24,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:24,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:24,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 359 transitions, 4573 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:24,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:24,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:24,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:25,575 INFO L124 PetriNetUnfolderBase]: 952/2612 cut-off events. [2024-11-17 07:46:25,576 INFO L125 PetriNetUnfolderBase]: For 21035/21324 co-relation queries the response was YES. [2024-11-17 07:46:25,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13394 conditions, 2612 events. 952/2612 cut-off events. For 21035/21324 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 18974 event pairs, 275 based on Foata normal form. 10/2601 useless extension candidates. Maximal degree in co-relation 13166. Up to 880 conditions per place. [2024-11-17 07:46:25,615 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 360 selfloop transitions, 89 changer transitions 0/471 dead transitions. [2024-11-17 07:46:25,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 471 transitions, 6839 flow [2024-11-17 07:46:25,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:25,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:25,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 271 transitions. [2024-11-17 07:46:25,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.615909090909091 [2024-11-17 07:46:25,617 INFO L175 Difference]: Start difference. First operand has 234 places, 359 transitions, 4573 flow. Second operand 8 states and 271 transitions. [2024-11-17 07:46:25,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 471 transitions, 6839 flow [2024-11-17 07:46:25,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 471 transitions, 6743 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-11-17 07:46:25,721 INFO L231 Difference]: Finished difference. Result has 240 places, 382 transitions, 5236 flow [2024-11-17 07:46:25,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=4482, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5236, PETRI_PLACES=240, PETRI_TRANSITIONS=382} [2024-11-17 07:46:25,723 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 188 predicate places. [2024-11-17 07:46:25,723 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 382 transitions, 5236 flow [2024-11-17 07:46:25,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:25,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:25,723 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:25,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-17 07:46:25,724 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:25,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:25,725 INFO L85 PathProgramCache]: Analyzing trace with hash 181271231, now seen corresponding path program 3 times [2024-11-17 07:46:25,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:25,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366260352] [2024-11-17 07:46:25,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:25,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:26,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:26,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366260352] [2024-11-17 07:46:26,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366260352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:26,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:26,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:26,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320712966] [2024-11-17 07:46:26,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:26,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:26,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:26,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:26,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:26,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 382 transitions, 5236 flow. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:26,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:26,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:26,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:27,303 INFO L124 PetriNetUnfolderBase]: 1441/3593 cut-off events. [2024-11-17 07:46:27,303 INFO L125 PetriNetUnfolderBase]: For 35973/36002 co-relation queries the response was YES. [2024-11-17 07:46:27,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19243 conditions, 3593 events. 1441/3593 cut-off events. For 35973/36002 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 27257 event pairs, 403 based on Foata normal form. 48/3610 useless extension candidates. Maximal degree in co-relation 19010. Up to 2138 conditions per place. [2024-11-17 07:46:27,343 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 334 selfloop transitions, 148 changer transitions 0/499 dead transitions. [2024-11-17 07:46:27,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 499 transitions, 7595 flow [2024-11-17 07:46:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 07:46:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-17 07:46:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 516 transitions. [2024-11-17 07:46:27,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4937799043062201 [2024-11-17 07:46:27,345 INFO L175 Difference]: Start difference. First operand has 240 places, 382 transitions, 5236 flow. Second operand 19 states and 516 transitions. [2024-11-17 07:46:27,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 499 transitions, 7595 flow [2024-11-17 07:46:27,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 499 transitions, 7487 flow, removed 36 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:27,494 INFO L231 Difference]: Finished difference. Result has 262 places, 420 transitions, 6122 flow [2024-11-17 07:46:27,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=5147, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6122, PETRI_PLACES=262, PETRI_TRANSITIONS=420} [2024-11-17 07:46:27,495 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 210 predicate places. [2024-11-17 07:46:27,495 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 420 transitions, 6122 flow [2024-11-17 07:46:27,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:27,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:27,496 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:27,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-17 07:46:27,496 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:27,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1831060670, now seen corresponding path program 7 times [2024-11-17 07:46:27,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:27,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011740075] [2024-11-17 07:46:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:27,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:27,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:27,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011740075] [2024-11-17 07:46:27,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011740075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:27,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:27,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637491033] [2024-11-17 07:46:27,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:27,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:27,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:27,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:27,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:27,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:27,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 420 transitions, 6122 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:27,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:27,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:27,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:28,437 INFO L124 PetriNetUnfolderBase]: 979/2701 cut-off events. [2024-11-17 07:46:28,437 INFO L125 PetriNetUnfolderBase]: For 29553/29925 co-relation queries the response was YES. [2024-11-17 07:46:28,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15023 conditions, 2701 events. 979/2701 cut-off events. For 29553/29925 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 19875 event pairs, 278 based on Foata normal form. 10/2690 useless extension candidates. Maximal degree in co-relation 14783. Up to 938 conditions per place. [2024-11-17 07:46:28,467 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 367 selfloop transitions, 87 changer transitions 0/476 dead transitions. [2024-11-17 07:46:28,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 476 transitions, 7591 flow [2024-11-17 07:46:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:28,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:28,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2024-11-17 07:46:28,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2024-11-17 07:46:28,468 INFO L175 Difference]: Start difference. First operand has 262 places, 420 transitions, 6122 flow. Second operand 8 states and 265 transitions. [2024-11-17 07:46:28,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 476 transitions, 7591 flow [2024-11-17 07:46:28,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 476 transitions, 7377 flow, removed 39 selfloop flow, removed 11 redundant places. [2024-11-17 07:46:28,573 INFO L231 Difference]: Finished difference. Result has 261 places, 412 transitions, 5987 flow [2024-11-17 07:46:28,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=5655, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5987, PETRI_PLACES=261, PETRI_TRANSITIONS=412} [2024-11-17 07:46:28,573 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 209 predicate places. [2024-11-17 07:46:28,574 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 412 transitions, 5987 flow [2024-11-17 07:46:28,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:28,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:28,574 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:28,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-17 07:46:28,574 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:28,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1841869363, now seen corresponding path program 4 times [2024-11-17 07:46:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:28,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843110799] [2024-11-17 07:46:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:28,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:28,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:28,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843110799] [2024-11-17 07:46:28,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843110799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:28,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:28,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:46:28,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694706605] [2024-11-17 07:46:28,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:28,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:46:28,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:28,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:46:28,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:46:29,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:29,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 412 transitions, 5987 flow. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:29,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:29,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:29,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:30,206 INFO L124 PetriNetUnfolderBase]: 1426/3592 cut-off events. [2024-11-17 07:46:30,206 INFO L125 PetriNetUnfolderBase]: For 44225/44233 co-relation queries the response was YES. [2024-11-17 07:46:30,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20314 conditions, 3592 events. 1426/3592 cut-off events. For 44225/44233 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 27239 event pairs, 593 based on Foata normal form. 66/3626 useless extension candidates. Maximal degree in co-relation 20070. Up to 2587 conditions per place. [2024-11-17 07:46:30,239 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 367 selfloop transitions, 160 changer transitions 0/544 dead transitions. [2024-11-17 07:46:30,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 544 transitions, 8844 flow [2024-11-17 07:46:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:46:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:46:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 579 transitions. [2024-11-17 07:46:30,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5012987012987012 [2024-11-17 07:46:30,241 INFO L175 Difference]: Start difference. First operand has 261 places, 412 transitions, 5987 flow. Second operand 21 states and 579 transitions. [2024-11-17 07:46:30,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 544 transitions, 8844 flow [2024-11-17 07:46:30,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 544 transitions, 8715 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-17 07:46:30,373 INFO L231 Difference]: Finished difference. Result has 291 places, 483 transitions, 7573 flow [2024-11-17 07:46:30,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=5874, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=7573, PETRI_PLACES=291, PETRI_TRANSITIONS=483} [2024-11-17 07:46:30,374 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 239 predicate places. [2024-11-17 07:46:30,374 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 483 transitions, 7573 flow [2024-11-17 07:46:30,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:30,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:30,374 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:30,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-17 07:46:30,374 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:30,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:30,375 INFO L85 PathProgramCache]: Analyzing trace with hash 268109048, now seen corresponding path program 8 times [2024-11-17 07:46:30,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:30,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156806310] [2024-11-17 07:46:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:30,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:30,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156806310] [2024-11-17 07:46:30,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156806310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:30,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:30,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:30,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234004659] [2024-11-17 07:46:30,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:30,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:30,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:30,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:30,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:30,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:30,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 483 transitions, 7573 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:30,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:30,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:30,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:31,487 INFO L124 PetriNetUnfolderBase]: 1099/3045 cut-off events. [2024-11-17 07:46:31,487 INFO L125 PetriNetUnfolderBase]: For 52180/52543 co-relation queries the response was YES. [2024-11-17 07:46:31,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19065 conditions, 3045 events. 1099/3045 cut-off events. For 52180/52543 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 23177 event pairs, 242 based on Foata normal form. 26/3028 useless extension candidates. Maximal degree in co-relation 18807. Up to 1114 conditions per place. [2024-11-17 07:46:31,521 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 483 selfloop transitions, 111 changer transitions 0/616 dead transitions. [2024-11-17 07:46:31,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 616 transitions, 10438 flow [2024-11-17 07:46:31,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 275 transitions. [2024-11-17 07:46:31,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-17 07:46:31,523 INFO L175 Difference]: Start difference. First operand has 291 places, 483 transitions, 7573 flow. Second operand 8 states and 275 transitions. [2024-11-17 07:46:31,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 616 transitions, 10438 flow [2024-11-17 07:46:31,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 616 transitions, 10089 flow, removed 164 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:31,709 INFO L231 Difference]: Finished difference. Result has 301 places, 512 transitions, 8269 flow [2024-11-17 07:46:31,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=7265, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8269, PETRI_PLACES=301, PETRI_TRANSITIONS=512} [2024-11-17 07:46:31,710 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 249 predicate places. [2024-11-17 07:46:31,710 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 512 transitions, 8269 flow [2024-11-17 07:46:31,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:31,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:31,710 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:31,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-17 07:46:31,710 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:31,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1817220354, now seen corresponding path program 9 times [2024-11-17 07:46:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:31,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950628265] [2024-11-17 07:46:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:32,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:32,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950628265] [2024-11-17 07:46:32,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950628265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:32,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:32,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:32,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366821704] [2024-11-17 07:46:32,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:32,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:32,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:32,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:32,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:32,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:32,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 512 transitions, 8269 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:32,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:32,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:32,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:32,960 INFO L124 PetriNetUnfolderBase]: 1009/2848 cut-off events. [2024-11-17 07:46:32,960 INFO L125 PetriNetUnfolderBase]: For 55957/56172 co-relation queries the response was YES. [2024-11-17 07:46:32,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18466 conditions, 2848 events. 1009/2848 cut-off events. For 55957/56172 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 21536 event pairs, 313 based on Foata normal form. 12/2834 useless extension candidates. Maximal degree in co-relation 18202. Up to 962 conditions per place. [2024-11-17 07:46:32,999 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 374 selfloop transitions, 103 changer transitions 0/499 dead transitions. [2024-11-17 07:46:32,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 499 transitions, 8923 flow [2024-11-17 07:46:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2024-11-17 07:46:33,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-17 07:46:33,000 INFO L175 Difference]: Start difference. First operand has 301 places, 512 transitions, 8269 flow. Second operand 8 states and 264 transitions. [2024-11-17 07:46:33,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 499 transitions, 8923 flow [2024-11-17 07:46:33,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 499 transitions, 8494 flow, removed 68 selfloop flow, removed 13 redundant places. [2024-11-17 07:46:33,199 INFO L231 Difference]: Finished difference. Result has 290 places, 456 transitions, 7291 flow [2024-11-17 07:46:33,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=6932, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7291, PETRI_PLACES=290, PETRI_TRANSITIONS=456} [2024-11-17 07:46:33,200 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 238 predicate places. [2024-11-17 07:46:33,200 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 456 transitions, 7291 flow [2024-11-17 07:46:33,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:33,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:33,200 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:33,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-17 07:46:33,201 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:33,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash -2144563940, now seen corresponding path program 10 times [2024-11-17 07:46:33,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:33,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306431905] [2024-11-17 07:46:33,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:33,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:33,499 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:33,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:33,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306431905] [2024-11-17 07:46:33,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306431905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:33,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414654453] [2024-11-17 07:46:33,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:33,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:33,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:33,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:33,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 456 transitions, 7291 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:33,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:33,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:33,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:34,312 INFO L124 PetriNetUnfolderBase]: 958/2709 cut-off events. [2024-11-17 07:46:34,312 INFO L125 PetriNetUnfolderBase]: For 43292/43616 co-relation queries the response was YES. [2024-11-17 07:46:34,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16777 conditions, 2709 events. 958/2709 cut-off events. For 43292/43616 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 20173 event pairs, 243 based on Foata normal form. 13/2680 useless extension candidates. Maximal degree in co-relation 16516. Up to 950 conditions per place. [2024-11-17 07:46:34,348 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 431 selfloop transitions, 88 changer transitions 0/541 dead transitions. [2024-11-17 07:46:34,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 541 transitions, 9323 flow [2024-11-17 07:46:34,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:34,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 280 transitions. [2024-11-17 07:46:34,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-17 07:46:34,350 INFO L175 Difference]: Start difference. First operand has 290 places, 456 transitions, 7291 flow. Second operand 8 states and 280 transitions. [2024-11-17 07:46:34,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 541 transitions, 9323 flow [2024-11-17 07:46:34,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 541 transitions, 9131 flow, removed 54 selfloop flow, removed 7 redundant places. [2024-11-17 07:46:34,525 INFO L231 Difference]: Finished difference. Result has 288 places, 448 transitions, 7462 flow [2024-11-17 07:46:34,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=6768, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7462, PETRI_PLACES=288, PETRI_TRANSITIONS=448} [2024-11-17 07:46:34,526 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 236 predicate places. [2024-11-17 07:46:34,526 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 448 transitions, 7462 flow [2024-11-17 07:46:34,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:34,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:34,527 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:34,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-17 07:46:34,527 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:34,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1476889592, now seen corresponding path program 11 times [2024-11-17 07:46:34,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:34,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581014478] [2024-11-17 07:46:34,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:34,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:34,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:34,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581014478] [2024-11-17 07:46:34,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581014478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:34,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:34,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:34,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546013261] [2024-11-17 07:46:34,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:34,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:34,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:34,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:34,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:34,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:34,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 448 transitions, 7462 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:34,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:34,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:34,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:35,612 INFO L124 PetriNetUnfolderBase]: 857/2461 cut-off events. [2024-11-17 07:46:35,612 INFO L125 PetriNetUnfolderBase]: For 37770/38046 co-relation queries the response was YES. [2024-11-17 07:46:35,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14911 conditions, 2461 events. 857/2461 cut-off events. For 37770/38046 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 18019 event pairs, 249 based on Foata normal form. 10/2428 useless extension candidates. Maximal degree in co-relation 14804. Up to 844 conditions per place. [2024-11-17 07:46:35,644 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 374 selfloop transitions, 81 changer transitions 0/477 dead transitions. [2024-11-17 07:46:35,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 477 transitions, 8454 flow [2024-11-17 07:46:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 273 transitions. [2024-11-17 07:46:35,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204545454545455 [2024-11-17 07:46:35,645 INFO L175 Difference]: Start difference. First operand has 288 places, 448 transitions, 7462 flow. Second operand 8 states and 273 transitions. [2024-11-17 07:46:35,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 477 transitions, 8454 flow [2024-11-17 07:46:35,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 477 transitions, 8190 flow, removed 105 selfloop flow, removed 10 redundant places. [2024-11-17 07:46:35,780 INFO L231 Difference]: Finished difference. Result has 279 places, 399 transitions, 6727 flow [2024-11-17 07:46:35,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=6440, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6727, PETRI_PLACES=279, PETRI_TRANSITIONS=399} [2024-11-17 07:46:35,781 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 227 predicate places. [2024-11-17 07:46:35,781 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 399 transitions, 6727 flow [2024-11-17 07:46:35,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:35,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:35,782 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:35,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-17 07:46:35,782 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:35,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 353109667, now seen corresponding path program 5 times [2024-11-17 07:46:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214163165] [2024-11-17 07:46:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:35,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:36,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:36,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214163165] [2024-11-17 07:46:36,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214163165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:36,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:36,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:46:36,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844254969] [2024-11-17 07:46:36,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:36,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:46:36,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:36,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:46:36,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:46:36,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:36,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 399 transitions, 6727 flow. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:36,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:36,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:36,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:37,089 INFO L124 PetriNetUnfolderBase]: 1253/3220 cut-off events. [2024-11-17 07:46:37,089 INFO L125 PetriNetUnfolderBase]: For 45254/45287 co-relation queries the response was YES. [2024-11-17 07:46:37,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18917 conditions, 3220 events. 1253/3220 cut-off events. For 45254/45287 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 24163 event pairs, 519 based on Foata normal form. 42/3220 useless extension candidates. Maximal degree in co-relation 18814. Up to 2361 conditions per place. [2024-11-17 07:46:37,129 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 361 selfloop transitions, 100 changer transitions 0/478 dead transitions. [2024-11-17 07:46:37,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 478 transitions, 8673 flow [2024-11-17 07:46:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 07:46:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 07:46:37,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 339 transitions. [2024-11-17 07:46:37,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5136363636363637 [2024-11-17 07:46:37,130 INFO L175 Difference]: Start difference. First operand has 279 places, 399 transitions, 6727 flow. Second operand 12 states and 339 transitions. [2024-11-17 07:46:37,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 478 transitions, 8673 flow [2024-11-17 07:46:37,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 478 transitions, 8468 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-11-17 07:46:37,281 INFO L231 Difference]: Finished difference. Result has 291 places, 432 transitions, 7411 flow [2024-11-17 07:46:37,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=6559, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7411, PETRI_PLACES=291, PETRI_TRANSITIONS=432} [2024-11-17 07:46:37,282 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 239 predicate places. [2024-11-17 07:46:37,283 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 432 transitions, 7411 flow [2024-11-17 07:46:37,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:37,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:37,283 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:37,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-17 07:46:37,283 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:37,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash -767671154, now seen corresponding path program 12 times [2024-11-17 07:46:37,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:37,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369820996] [2024-11-17 07:46:37,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:37,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:37,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369820996] [2024-11-17 07:46:37,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369820996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:37,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:37,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:37,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078740207] [2024-11-17 07:46:37,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:37,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:37,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:37,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:37,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:37,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:37,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 432 transitions, 7411 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:37,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:37,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:37,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:38,227 INFO L124 PetriNetUnfolderBase]: 831/2394 cut-off events. [2024-11-17 07:46:38,228 INFO L125 PetriNetUnfolderBase]: For 34750/34899 co-relation queries the response was YES. [2024-11-17 07:46:38,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14298 conditions, 2394 events. 831/2394 cut-off events. For 34750/34899 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 17442 event pairs, 235 based on Foata normal form. 11/2362 useless extension candidates. Maximal degree in co-relation 14190. Up to 844 conditions per place. [2024-11-17 07:46:38,258 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 347 selfloop transitions, 89 changer transitions 0/458 dead transitions. [2024-11-17 07:46:38,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 458 transitions, 8275 flow [2024-11-17 07:46:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 268 transitions. [2024-11-17 07:46:38,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2024-11-17 07:46:38,259 INFO L175 Difference]: Start difference. First operand has 291 places, 432 transitions, 7411 flow. Second operand 8 states and 268 transitions. [2024-11-17 07:46:38,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 458 transitions, 8275 flow [2024-11-17 07:46:38,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 458 transitions, 8017 flow, removed 31 selfloop flow, removed 15 redundant places. [2024-11-17 07:46:38,388 INFO L231 Difference]: Finished difference. Result has 280 places, 391 transitions, 6730 flow [2024-11-17 07:46:38,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=6352, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6730, PETRI_PLACES=280, PETRI_TRANSITIONS=391} [2024-11-17 07:46:38,389 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 228 predicate places. [2024-11-17 07:46:38,389 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 391 transitions, 6730 flow [2024-11-17 07:46:38,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:38,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:38,390 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:38,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-17 07:46:38,390 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:38,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:38,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1775690823, now seen corresponding path program 6 times [2024-11-17 07:46:38,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:38,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552292562] [2024-11-17 07:46:38,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:38,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:38,778 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:38,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:38,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552292562] [2024-11-17 07:46:38,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552292562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:38,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:38,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:38,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833125365] [2024-11-17 07:46:38,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:38,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:38,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:38,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:38,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:38,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:38,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 391 transitions, 6730 flow. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:38,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:38,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:38,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:39,706 INFO L124 PetriNetUnfolderBase]: 1238/3200 cut-off events. [2024-11-17 07:46:39,707 INFO L125 PetriNetUnfolderBase]: For 43916/43946 co-relation queries the response was YES. [2024-11-17 07:46:39,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18570 conditions, 3200 events. 1238/3200 cut-off events. For 43916/43946 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 24051 event pairs, 505 based on Foata normal form. 42/3200 useless extension candidates. Maximal degree in co-relation 18467. Up to 2359 conditions per place. [2024-11-17 07:46:39,743 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 373 selfloop transitions, 81 changer transitions 0/471 dead transitions. [2024-11-17 07:46:39,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 471 transitions, 8695 flow [2024-11-17 07:46:39,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 07:46:39,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 07:46:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 386 transitions. [2024-11-17 07:46:39,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5012987012987012 [2024-11-17 07:46:39,744 INFO L175 Difference]: Start difference. First operand has 280 places, 391 transitions, 6730 flow. Second operand 14 states and 386 transitions. [2024-11-17 07:46:39,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 471 transitions, 8695 flow [2024-11-17 07:46:39,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 471 transitions, 8634 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-11-17 07:46:39,867 INFO L231 Difference]: Finished difference. Result has 299 places, 433 transitions, 7517 flow [2024-11-17 07:46:39,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=6669, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7517, PETRI_PLACES=299, PETRI_TRANSITIONS=433} [2024-11-17 07:46:39,868 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 247 predicate places. [2024-11-17 07:46:39,868 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 433 transitions, 7517 flow [2024-11-17 07:46:39,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:39,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:39,869 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:39,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-17 07:46:39,869 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:39,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:39,869 INFO L85 PathProgramCache]: Analyzing trace with hash 85793089, now seen corresponding path program 7 times [2024-11-17 07:46:39,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:39,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352822578] [2024-11-17 07:46:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:39,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:40,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:40,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352822578] [2024-11-17 07:46:40,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352822578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:40,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:40,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:40,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795389883] [2024-11-17 07:46:40,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:40,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:40,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:40,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:40,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:40,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:40,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 433 transitions, 7517 flow. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:40,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:40,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:40,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:41,370 INFO L124 PetriNetUnfolderBase]: 1281/3310 cut-off events. [2024-11-17 07:46:41,370 INFO L125 PetriNetUnfolderBase]: For 51623/51655 co-relation queries the response was YES. [2024-11-17 07:46:41,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20139 conditions, 3310 events. 1281/3310 cut-off events. For 51623/51655 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 25081 event pairs, 507 based on Foata normal form. 44/3311 useless extension candidates. Maximal degree in co-relation 20028. Up to 2411 conditions per place. [2024-11-17 07:46:41,414 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 384 selfloop transitions, 93 changer transitions 0/494 dead transitions. [2024-11-17 07:46:41,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 494 transitions, 9313 flow [2024-11-17 07:46:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-17 07:46:41,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-17 07:46:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 434 transitions. [2024-11-17 07:46:41,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49318181818181817 [2024-11-17 07:46:41,416 INFO L175 Difference]: Start difference. First operand has 299 places, 433 transitions, 7517 flow. Second operand 16 states and 434 transitions. [2024-11-17 07:46:41,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 494 transitions, 9313 flow [2024-11-17 07:46:41,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 494 transitions, 9258 flow, removed 19 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:41,594 INFO L231 Difference]: Finished difference. Result has 319 places, 458 transitions, 8104 flow [2024-11-17 07:46:41,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=7462, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8104, PETRI_PLACES=319, PETRI_TRANSITIONS=458} [2024-11-17 07:46:41,594 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 267 predicate places. [2024-11-17 07:46:41,594 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 458 transitions, 8104 flow [2024-11-17 07:46:41,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:41,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:41,595 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:41,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-17 07:46:41,595 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:41,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash 129239899, now seen corresponding path program 8 times [2024-11-17 07:46:41,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421073618] [2024-11-17 07:46:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:41,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:41,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:41,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421073618] [2024-11-17 07:46:41,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421073618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:41,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:41,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:41,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370793927] [2024-11-17 07:46:41,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:41,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:41,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:41,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:42,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:42,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 458 transitions, 8104 flow. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:42,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:42,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:42,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:43,326 INFO L124 PetriNetUnfolderBase]: 1312/3359 cut-off events. [2024-11-17 07:46:43,326 INFO L125 PetriNetUnfolderBase]: For 59952/59997 co-relation queries the response was YES. [2024-11-17 07:46:43,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21456 conditions, 3359 events. 1312/3359 cut-off events. For 59952/59997 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 25404 event pairs, 288 based on Foata normal form. 42/3360 useless extension candidates. Maximal degree in co-relation 21338. Up to 1958 conditions per place. [2024-11-17 07:46:43,372 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 365 selfloop transitions, 145 changer transitions 0/527 dead transitions. [2024-11-17 07:46:43,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 527 transitions, 10123 flow [2024-11-17 07:46:43,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 07:46:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-17 07:46:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 512 transitions. [2024-11-17 07:46:43,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48995215311004786 [2024-11-17 07:46:43,374 INFO L175 Difference]: Start difference. First operand has 319 places, 458 transitions, 8104 flow. Second operand 19 states and 512 transitions. [2024-11-17 07:46:43,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 527 transitions, 10123 flow [2024-11-17 07:46:43,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 527 transitions, 10014 flow, removed 53 selfloop flow, removed 1 redundant places. [2024-11-17 07:46:43,560 INFO L231 Difference]: Finished difference. Result has 341 places, 475 transitions, 8713 flow [2024-11-17 07:46:43,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=8007, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8713, PETRI_PLACES=341, PETRI_TRANSITIONS=475} [2024-11-17 07:46:43,561 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 289 predicate places. [2024-11-17 07:46:43,561 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 475 transitions, 8713 flow [2024-11-17 07:46:43,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:43,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:43,562 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:43,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-17 07:46:43,562 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:43,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:43,565 INFO L85 PathProgramCache]: Analyzing trace with hash 336354749, now seen corresponding path program 9 times [2024-11-17 07:46:43,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:43,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815976606] [2024-11-17 07:46:43,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:43,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:43,912 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:43,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:43,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815976606] [2024-11-17 07:46:43,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815976606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:43,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:43,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:43,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272763693] [2024-11-17 07:46:43,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:43,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:43,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:43,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:43,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:43,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:43,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 475 transitions, 8713 flow. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:43,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:43,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:43,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:44,969 INFO L124 PetriNetUnfolderBase]: 1343/3437 cut-off events. [2024-11-17 07:46:44,969 INFO L125 PetriNetUnfolderBase]: For 71854/71899 co-relation queries the response was YES. [2024-11-17 07:46:45,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23141 conditions, 3437 events. 1343/3437 cut-off events. For 71854/71899 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 26142 event pairs, 288 based on Foata normal form. 42/3437 useless extension candidates. Maximal degree in co-relation 23018. Up to 2050 conditions per place. [2024-11-17 07:46:45,018 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 385 selfloop transitions, 143 changer transitions 0/545 dead transitions. [2024-11-17 07:46:45,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 545 transitions, 10828 flow [2024-11-17 07:46:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 07:46:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-17 07:46:45,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 486 transitions. [2024-11-17 07:46:45,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-11-17 07:46:45,020 INFO L175 Difference]: Start difference. First operand has 341 places, 475 transitions, 8713 flow. Second operand 18 states and 486 transitions. [2024-11-17 07:46:45,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 545 transitions, 10828 flow [2024-11-17 07:46:45,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 545 transitions, 10632 flow, removed 53 selfloop flow, removed 10 redundant places. [2024-11-17 07:46:45,277 INFO L231 Difference]: Finished difference. Result has 354 places, 493 transitions, 9311 flow [2024-11-17 07:46:45,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=8527, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=9311, PETRI_PLACES=354, PETRI_TRANSITIONS=493} [2024-11-17 07:46:45,278 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 302 predicate places. [2024-11-17 07:46:45,278 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 493 transitions, 9311 flow [2024-11-17 07:46:45,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:45,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:45,278 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:45,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-17 07:46:45,278 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:45,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:45,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1692697347, now seen corresponding path program 10 times [2024-11-17 07:46:45,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:45,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793905370] [2024-11-17 07:46:45,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:45,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:45,626 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:45,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:45,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793905370] [2024-11-17 07:46:45,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793905370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:45,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:45,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:45,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228552739] [2024-11-17 07:46:45,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:45,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:45,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:45,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:45,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:45,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:45,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 493 transitions, 9311 flow. Second operand has 10 states, 10 states have (on average 23.5) internal successors, (235), 10 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:45,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:45,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:45,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:46,693 INFO L124 PetriNetUnfolderBase]: 1109/2990 cut-off events. [2024-11-17 07:46:46,693 INFO L125 PetriNetUnfolderBase]: For 74075/74110 co-relation queries the response was YES. [2024-11-17 07:46:46,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21810 conditions, 2990 events. 1109/2990 cut-off events. For 74075/74110 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 22296 event pairs, 194 based on Foata normal form. 34/3004 useless extension candidates. Maximal degree in co-relation 21680. Up to 1638 conditions per place. [2024-11-17 07:46:46,739 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 357 selfloop transitions, 196 changer transitions 0/573 dead transitions. [2024-11-17 07:46:46,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 573 transitions, 11898 flow [2024-11-17 07:46:46,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-17 07:46:46,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-17 07:46:46,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 633 transitions. [2024-11-17 07:46:46,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.500395256916996 [2024-11-17 07:46:46,741 INFO L175 Difference]: Start difference. First operand has 354 places, 493 transitions, 9311 flow. Second operand 23 states and 633 transitions. [2024-11-17 07:46:46,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 573 transitions, 11898 flow [2024-11-17 07:46:47,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 573 transitions, 11704 flow, removed 59 selfloop flow, removed 8 redundant places. [2024-11-17 07:46:47,023 INFO L231 Difference]: Finished difference. Result has 375 places, 524 transitions, 10323 flow [2024-11-17 07:46:47,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=9129, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=10323, PETRI_PLACES=375, PETRI_TRANSITIONS=524} [2024-11-17 07:46:47,024 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 323 predicate places. [2024-11-17 07:46:47,024 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 524 transitions, 10323 flow [2024-11-17 07:46:47,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.5) internal successors, (235), 10 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:47,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:47,024 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:47,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-17 07:46:47,024 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:47,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:47,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1037359787, now seen corresponding path program 11 times [2024-11-17 07:46:47,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:47,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060319769] [2024-11-17 07:46:47,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:47,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:47,395 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:47,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:47,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060319769] [2024-11-17 07:46:47,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060319769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:47,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:47,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:46:47,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965182031] [2024-11-17 07:46:47,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:47,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:46:47,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:47,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:46:47,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:46:47,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:47,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 524 transitions, 10323 flow. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:47,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:47,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:47,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:48,831 INFO L124 PetriNetUnfolderBase]: 1431/3670 cut-off events. [2024-11-17 07:46:48,831 INFO L125 PetriNetUnfolderBase]: For 108750/108781 co-relation queries the response was YES. [2024-11-17 07:46:48,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27584 conditions, 3670 events. 1431/3670 cut-off events. For 108750/108781 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 28157 event pairs, 521 based on Foata normal form. 46/3674 useless extension candidates. Maximal degree in co-relation 27446. Up to 2638 conditions per place. [2024-11-17 07:46:48,889 INFO L140 encePairwiseOnDemand]: 41/55 looper letters, 439 selfloop transitions, 145 changer transitions 0/601 dead transitions. [2024-11-17 07:46:48,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 601 transitions, 12980 flow [2024-11-17 07:46:48,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:46:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:46:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 548 transitions. [2024-11-17 07:46:48,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47445887445887447 [2024-11-17 07:46:48,891 INFO L175 Difference]: Start difference. First operand has 375 places, 524 transitions, 10323 flow. Second operand 21 states and 548 transitions. [2024-11-17 07:46:48,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 601 transitions, 12980 flow [2024-11-17 07:46:49,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 601 transitions, 12616 flow, removed 108 selfloop flow, removed 10 redundant places. [2024-11-17 07:46:49,303 INFO L231 Difference]: Finished difference. Result has 392 places, 567 transitions, 11395 flow [2024-11-17 07:46:49,304 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=9995, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11395, PETRI_PLACES=392, PETRI_TRANSITIONS=567} [2024-11-17 07:46:49,304 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 340 predicate places. [2024-11-17 07:46:49,304 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 567 transitions, 11395 flow [2024-11-17 07:46:49,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:49,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:49,305 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:49,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-17 07:46:49,305 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:49,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:49,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1789893451, now seen corresponding path program 12 times [2024-11-17 07:46:49,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:49,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122246520] [2024-11-17 07:46:49,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:49,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:49,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:49,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122246520] [2024-11-17 07:46:49,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122246520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:49,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:46:49,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352314465] [2024-11-17 07:46:49,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:49,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:46:49,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:46:49,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:46:49,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:49,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 567 transitions, 11395 flow. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:49,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:49,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:49,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:50,923 INFO L124 PetriNetUnfolderBase]: 1455/3729 cut-off events. [2024-11-17 07:46:50,923 INFO L125 PetriNetUnfolderBase]: For 137519/137527 co-relation queries the response was YES. [2024-11-17 07:46:50,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29375 conditions, 3729 events. 1455/3729 cut-off events. For 137519/137527 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 28729 event pairs, 556 based on Foata normal form. 44/3740 useless extension candidates. Maximal degree in co-relation 29231. Up to 2661 conditions per place. [2024-11-17 07:46:50,983 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 462 selfloop transitions, 138 changer transitions 0/617 dead transitions. [2024-11-17 07:46:50,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 617 transitions, 13422 flow [2024-11-17 07:46:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 07:46:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-17 07:46:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 476 transitions. [2024-11-17 07:46:50,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4808080808080808 [2024-11-17 07:46:50,985 INFO L175 Difference]: Start difference. First operand has 392 places, 567 transitions, 11395 flow. Second operand 18 states and 476 transitions. [2024-11-17 07:46:50,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 617 transitions, 13422 flow [2024-11-17 07:46:51,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 617 transitions, 13039 flow, removed 142 selfloop flow, removed 5 redundant places. [2024-11-17 07:46:51,443 INFO L231 Difference]: Finished difference. Result has 407 places, 584 transitions, 11755 flow [2024-11-17 07:46:51,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=11022, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11755, PETRI_PLACES=407, PETRI_TRANSITIONS=584} [2024-11-17 07:46:51,444 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 355 predicate places. [2024-11-17 07:46:51,444 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 584 transitions, 11755 flow [2024-11-17 07:46:51,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:51,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:51,445 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:51,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-17 07:46:51,445 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:51,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1887146589, now seen corresponding path program 13 times [2024-11-17 07:46:51,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:51,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949213944] [2024-11-17 07:46:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:51,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:51,767 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:51,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:51,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949213944] [2024-11-17 07:46:51,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949213944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:51,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:51,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:46:51,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039414632] [2024-11-17 07:46:51,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:51,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:46:51,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:51,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:46:51,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:46:51,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-17 07:46:51,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 584 transitions, 11755 flow. Second operand has 10 states, 10 states have (on average 23.5) internal successors, (235), 10 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:51,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:51,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-17 07:46:51,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:53,021 INFO L124 PetriNetUnfolderBase]: 1197/3205 cut-off events. [2024-11-17 07:46:53,022 INFO L125 PetriNetUnfolderBase]: For 131971/132028 co-relation queries the response was YES. [2024-11-17 07:46:53,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26603 conditions, 3205 events. 1197/3205 cut-off events. For 131971/132028 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 24388 event pairs, 201 based on Foata normal form. 37/3214 useless extension candidates. Maximal degree in co-relation 26456. Up to 1763 conditions per place. [2024-11-17 07:46:53,075 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 387 selfloop transitions, 237 changer transitions 0/644 dead transitions. [2024-11-17 07:46:53,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 644 transitions, 14226 flow [2024-11-17 07:46:53,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-17 07:46:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-17 07:46:53,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 655 transitions. [2024-11-17 07:46:53,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4962121212121212 [2024-11-17 07:46:53,077 INFO L175 Difference]: Start difference. First operand has 407 places, 584 transitions, 11755 flow. Second operand 24 states and 655 transitions. [2024-11-17 07:46:53,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 644 transitions, 14226 flow [2024-11-17 07:46:53,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 644 transitions, 13891 flow, removed 109 selfloop flow, removed 9 redundant places. [2024-11-17 07:46:53,538 INFO L231 Difference]: Finished difference. Result has 429 places, 599 transitions, 12468 flow [2024-11-17 07:46:53,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=11452, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=12468, PETRI_PLACES=429, PETRI_TRANSITIONS=599} [2024-11-17 07:46:53,539 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 377 predicate places. [2024-11-17 07:46:53,539 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 599 transitions, 12468 flow [2024-11-17 07:46:53,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.5) internal successors, (235), 10 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:53,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:53,540 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:53,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-17 07:46:53,540 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:53,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:53,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1883092002, now seen corresponding path program 13 times [2024-11-17 07:46:53,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:53,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589674950] [2024-11-17 07:46:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:53,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:53,801 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:53,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:53,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589674950] [2024-11-17 07:46:53,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589674950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:53,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:53,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:53,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876331318] [2024-11-17 07:46:53,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:53,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:53,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:53,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:53,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:53,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:53,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 599 transitions, 12468 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:53,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:53,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:53,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:54,752 INFO L124 PetriNetUnfolderBase]: 1013/2875 cut-off events. [2024-11-17 07:46:54,752 INFO L125 PetriNetUnfolderBase]: For 109636/110363 co-relation queries the response was YES. [2024-11-17 07:46:54,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23306 conditions, 2875 events. 1013/2875 cut-off events. For 109636/110363 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 21760 event pairs, 228 based on Foata normal form. 12/2845 useless extension candidates. Maximal degree in co-relation 23151. Up to 1100 conditions per place. [2024-11-17 07:46:54,795 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 464 selfloop transitions, 111 changer transitions 0/597 dead transitions. [2024-11-17 07:46:54,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 597 transitions, 12919 flow [2024-11-17 07:46:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 270 transitions. [2024-11-17 07:46:54,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-17 07:46:54,797 INFO L175 Difference]: Start difference. First operand has 429 places, 599 transitions, 12468 flow. Second operand 8 states and 270 transitions. [2024-11-17 07:46:54,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 597 transitions, 12919 flow [2024-11-17 07:46:55,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 597 transitions, 12329 flow, removed 155 selfloop flow, removed 25 redundant places. [2024-11-17 07:46:55,184 INFO L231 Difference]: Finished difference. Result has 401 places, 532 transitions, 10771 flow [2024-11-17 07:46:55,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=10389, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10771, PETRI_PLACES=401, PETRI_TRANSITIONS=532} [2024-11-17 07:46:55,185 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 349 predicate places. [2024-11-17 07:46:55,185 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 532 transitions, 10771 flow [2024-11-17 07:46:55,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:55,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:55,186 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:55,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-17 07:46:55,186 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:55,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash -237099193, now seen corresponding path program 14 times [2024-11-17 07:46:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:55,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78032291] [2024-11-17 07:46:55,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:55,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:55,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:55,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78032291] [2024-11-17 07:46:55,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78032291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:55,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:55,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:46:55,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981434578] [2024-11-17 07:46:55,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:55,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:46:55,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:55,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:46:55,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:46:55,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:46:55,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 532 transitions, 10771 flow. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:55,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:55,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:46:55,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:56,825 INFO L124 PetriNetUnfolderBase]: 1339/3458 cut-off events. [2024-11-17 07:46:56,825 INFO L125 PetriNetUnfolderBase]: For 120284/120287 co-relation queries the response was YES. [2024-11-17 07:46:56,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26836 conditions, 3458 events. 1339/3458 cut-off events. For 120284/120287 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 26366 event pairs, 508 based on Foata normal form. 42/3467 useless extension candidates. Maximal degree in co-relation 26686. Up to 2432 conditions per place. [2024-11-17 07:46:56,882 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 409 selfloop transitions, 142 changer transitions 0/568 dead transitions. [2024-11-17 07:46:56,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 568 transitions, 12416 flow [2024-11-17 07:46:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 07:46:56,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 07:46:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 404 transitions. [2024-11-17 07:46:56,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4896969696969697 [2024-11-17 07:46:56,883 INFO L175 Difference]: Start difference. First operand has 401 places, 532 transitions, 10771 flow. Second operand 15 states and 404 transitions. [2024-11-17 07:46:56,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 568 transitions, 12416 flow [2024-11-17 07:46:57,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 568 transitions, 12151 flow, removed 40 selfloop flow, removed 5 redundant places. [2024-11-17 07:46:57,325 INFO L231 Difference]: Finished difference. Result has 413 places, 542 transitions, 11108 flow [2024-11-17 07:46:57,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=10524, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11108, PETRI_PLACES=413, PETRI_TRANSITIONS=542} [2024-11-17 07:46:57,327 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 361 predicate places. [2024-11-17 07:46:57,327 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 542 transitions, 11108 flow [2024-11-17 07:46:57,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 11 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:57,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:57,328 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:57,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-17 07:46:57,328 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:57,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:57,329 INFO L85 PathProgramCache]: Analyzing trace with hash -256396388, now seen corresponding path program 14 times [2024-11-17 07:46:57,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:57,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699579170] [2024-11-17 07:46:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:57,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:57,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:57,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699579170] [2024-11-17 07:46:57,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699579170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:57,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:57,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 07:46:57,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381085350] [2024-11-17 07:46:57,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:57,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:46:57,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:46:57,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:46:57,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-17 07:46:57,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 542 transitions, 11108 flow. Second operand has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:57,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:57,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-17 07:46:57,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:46:58,383 INFO L124 PetriNetUnfolderBase]: 724/2138 cut-off events. [2024-11-17 07:46:58,383 INFO L125 PetriNetUnfolderBase]: For 65284/65902 co-relation queries the response was YES. [2024-11-17 07:46:58,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15805 conditions, 2138 events. 724/2138 cut-off events. For 65284/65902 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 15437 event pairs, 168 based on Foata normal form. 17/2120 useless extension candidates. Maximal degree in co-relation 15653. Up to 775 conditions per place. [2024-11-17 07:46:58,419 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 286 selfloop transitions, 150 changer transitions 0/458 dead transitions. [2024-11-17 07:46:58,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 458 transitions, 9473 flow [2024-11-17 07:46:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:46:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:46:58,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 273 transitions. [2024-11-17 07:46:58,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204545454545455 [2024-11-17 07:46:58,421 INFO L175 Difference]: Start difference. First operand has 413 places, 542 transitions, 11108 flow. Second operand 8 states and 273 transitions. [2024-11-17 07:46:58,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 458 transitions, 9473 flow [2024-11-17 07:46:58,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 458 transitions, 8841 flow, removed 114 selfloop flow, removed 37 redundant places. [2024-11-17 07:46:58,651 INFO L231 Difference]: Finished difference. Result has 341 places, 401 transitions, 7938 flow [2024-11-17 07:46:58,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=7401, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7938, PETRI_PLACES=341, PETRI_TRANSITIONS=401} [2024-11-17 07:46:58,652 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 289 predicate places. [2024-11-17 07:46:58,652 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 401 transitions, 7938 flow [2024-11-17 07:46:58,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.75) internal successors, (198), 8 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:58,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:46:58,653 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:46:58,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-17 07:46:58,653 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:46:58,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:46:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1853161579, now seen corresponding path program 1 times [2024-11-17 07:46:58,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:46:58,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984954284] [2024-11-17 07:46:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:46:58,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:46:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:46:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:46:59,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:46:59,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984954284] [2024-11-17 07:46:59,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984954284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:46:59,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:46:59,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:46:59,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563667919] [2024-11-17 07:46:59,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:46:59,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:46:59,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:46:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:46:59,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:46:59,106 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-17 07:46:59,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 401 transitions, 7938 flow. Second operand has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:46:59,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:46:59,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-17 07:46:59,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:00,197 INFO L124 PetriNetUnfolderBase]: 1249/3036 cut-off events. [2024-11-17 07:47:00,197 INFO L125 PetriNetUnfolderBase]: For 49863/49870 co-relation queries the response was YES. [2024-11-17 07:47:00,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19072 conditions, 3036 events. 1249/3036 cut-off events. For 49863/49870 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 21696 event pairs, 394 based on Foata normal form. 34/3046 useless extension candidates. Maximal degree in co-relation 18945. Up to 1890 conditions per place. [2024-11-17 07:47:00,242 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 423 selfloop transitions, 83 changer transitions 0/521 dead transitions. [2024-11-17 07:47:00,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 521 transitions, 10647 flow [2024-11-17 07:47:00,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 07:47:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-17 07:47:00,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 458 transitions. [2024-11-17 07:47:00,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4626262626262626 [2024-11-17 07:47:00,243 INFO L175 Difference]: Start difference. First operand has 341 places, 401 transitions, 7938 flow. Second operand 18 states and 458 transitions. [2024-11-17 07:47:00,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 521 transitions, 10647 flow [2024-11-17 07:47:00,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 521 transitions, 10485 flow, removed 21 selfloop flow, removed 4 redundant places. [2024-11-17 07:47:00,500 INFO L231 Difference]: Finished difference. Result has 360 places, 443 transitions, 8629 flow [2024-11-17 07:47:00,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=7777, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8629, PETRI_PLACES=360, PETRI_TRANSITIONS=443} [2024-11-17 07:47:00,501 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 308 predicate places. [2024-11-17 07:47:00,501 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 443 transitions, 8629 flow [2024-11-17 07:47:00,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:00,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:00,502 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:00,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-17 07:47:00,502 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:00,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:00,502 INFO L85 PathProgramCache]: Analyzing trace with hash 550603259, now seen corresponding path program 2 times [2024-11-17 07:47:00,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:00,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524494691] [2024-11-17 07:47:00,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:00,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:00,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:00,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524494691] [2024-11-17 07:47:00,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524494691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:00,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:00,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:47:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308901612] [2024-11-17 07:47:00,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:00,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:47:00,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:00,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:47:00,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:47:00,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-17 07:47:00,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 443 transitions, 8629 flow. Second operand has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:00,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:00,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-17 07:47:00,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:02,403 INFO L124 PetriNetUnfolderBase]: 1327/3211 cut-off events. [2024-11-17 07:47:02,403 INFO L125 PetriNetUnfolderBase]: For 52277/52288 co-relation queries the response was YES. [2024-11-17 07:47:02,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20891 conditions, 3211 events. 1327/3211 cut-off events. For 52277/52288 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 23163 event pairs, 411 based on Foata normal form. 36/3219 useless extension candidates. Maximal degree in co-relation 20759. Up to 1980 conditions per place. [2024-11-17 07:47:02,437 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 435 selfloop transitions, 91 changer transitions 0/541 dead transitions. [2024-11-17 07:47:02,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 541 transitions, 11073 flow [2024-11-17 07:47:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 07:47:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 07:47:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 434 transitions. [2024-11-17 07:47:02,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4641711229946524 [2024-11-17 07:47:02,439 INFO L175 Difference]: Start difference. First operand has 360 places, 443 transitions, 8629 flow. Second operand 17 states and 434 transitions. [2024-11-17 07:47:02,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 541 transitions, 11073 flow [2024-11-17 07:47:02,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 541 transitions, 11026 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-17 07:47:02,613 INFO L231 Difference]: Finished difference. Result has 381 places, 461 transitions, 9173 flow [2024-11-17 07:47:02,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=8587, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9173, PETRI_PLACES=381, PETRI_TRANSITIONS=461} [2024-11-17 07:47:02,614 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 329 predicate places. [2024-11-17 07:47:02,614 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 461 transitions, 9173 flow [2024-11-17 07:47:02,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:02,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:02,614 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:02,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-17 07:47:02,615 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:02,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:02,615 INFO L85 PathProgramCache]: Analyzing trace with hash 474248789, now seen corresponding path program 3 times [2024-11-17 07:47:02,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:02,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292353312] [2024-11-17 07:47:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:02,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:02,972 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:02,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:02,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292353312] [2024-11-17 07:47:02,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292353312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:02,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:02,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:47:02,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132289784] [2024-11-17 07:47:02,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:02,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:47:02,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:02,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:47:02,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:47:02,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-17 07:47:02,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 461 transitions, 9173 flow. Second operand has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:02,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:02,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-17 07:47:02,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:04,460 INFO L124 PetriNetUnfolderBase]: 1507/3635 cut-off events. [2024-11-17 07:47:04,460 INFO L125 PetriNetUnfolderBase]: For 62441/62457 co-relation queries the response was YES. [2024-11-17 07:47:04,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24633 conditions, 3635 events. 1507/3635 cut-off events. For 62441/62457 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 26991 event pairs, 422 based on Foata normal form. 38/3636 useless extension candidates. Maximal degree in co-relation 24494. Up to 1949 conditions per place. [2024-11-17 07:47:04,520 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 469 selfloop transitions, 131 changer transitions 0/615 dead transitions. [2024-11-17 07:47:04,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 615 transitions, 12457 flow [2024-11-17 07:47:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-17 07:47:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-17 07:47:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 534 transitions. [2024-11-17 07:47:04,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48545454545454547 [2024-11-17 07:47:04,521 INFO L175 Difference]: Start difference. First operand has 381 places, 461 transitions, 9173 flow. Second operand 20 states and 534 transitions. [2024-11-17 07:47:04,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 615 transitions, 12457 flow [2024-11-17 07:47:04,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 615 transitions, 12366 flow, removed 25 selfloop flow, removed 5 redundant places. [2024-11-17 07:47:04,771 INFO L231 Difference]: Finished difference. Result has 403 places, 494 transitions, 10131 flow [2024-11-17 07:47:04,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=9094, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10131, PETRI_PLACES=403, PETRI_TRANSITIONS=494} [2024-11-17 07:47:04,771 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 351 predicate places. [2024-11-17 07:47:04,772 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 494 transitions, 10131 flow [2024-11-17 07:47:04,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:04,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:04,772 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:04,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-17 07:47:04,772 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:04,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:04,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1694184886, now seen corresponding path program 1 times [2024-11-17 07:47:04,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:04,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516333158] [2024-11-17 07:47:04,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:04,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:05,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:05,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516333158] [2024-11-17 07:47:05,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516333158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:05,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:05,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:47:05,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850509304] [2024-11-17 07:47:05,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:05,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:47:05,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:05,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:47:05,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:47:05,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:47:05,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 494 transitions, 10131 flow. Second operand has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:05,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:05,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:47:05,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:06,244 INFO L124 PetriNetUnfolderBase]: 1390/3579 cut-off events. [2024-11-17 07:47:06,244 INFO L125 PetriNetUnfolderBase]: For 72298/72370 co-relation queries the response was YES. [2024-11-17 07:47:06,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25685 conditions, 3579 events. 1390/3579 cut-off events. For 72298/72370 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 27829 event pairs, 436 based on Foata normal form. 30/3554 useless extension candidates. Maximal degree in co-relation 25538. Up to 2284 conditions per place. [2024-11-17 07:47:06,302 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 441 selfloop transitions, 134 changer transitions 0/607 dead transitions. [2024-11-17 07:47:06,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 607 transitions, 13313 flow [2024-11-17 07:47:06,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 07:47:06,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 07:47:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 388 transitions. [2024-11-17 07:47:06,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5038961038961038 [2024-11-17 07:47:06,303 INFO L175 Difference]: Start difference. First operand has 403 places, 494 transitions, 10131 flow. Second operand 14 states and 388 transitions. [2024-11-17 07:47:06,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 607 transitions, 13313 flow [2024-11-17 07:47:06,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 607 transitions, 13131 flow, removed 44 selfloop flow, removed 12 redundant places. [2024-11-17 07:47:06,591 INFO L231 Difference]: Finished difference. Result has 410 places, 517 transitions, 10907 flow [2024-11-17 07:47:06,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=9971, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10907, PETRI_PLACES=410, PETRI_TRANSITIONS=517} [2024-11-17 07:47:06,592 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 358 predicate places. [2024-11-17 07:47:06,592 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 517 transitions, 10907 flow [2024-11-17 07:47:06,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:06,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:06,592 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:06,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-17 07:47:06,593 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:06,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:06,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1485213883, now seen corresponding path program 4 times [2024-11-17 07:47:06,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:06,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012864590] [2024-11-17 07:47:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:06,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:06,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:06,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012864590] [2024-11-17 07:47:06,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012864590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:06,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:47:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609689901] [2024-11-17 07:47:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:06,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:47:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:06,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:47:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:47:06,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-17 07:47:06,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 517 transitions, 10907 flow. Second operand has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:06,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:06,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-17 07:47:06,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:08,261 INFO L124 PetriNetUnfolderBase]: 1626/3914 cut-off events. [2024-11-17 07:47:08,261 INFO L125 PetriNetUnfolderBase]: For 84097/84109 co-relation queries the response was YES. [2024-11-17 07:47:08,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29260 conditions, 3914 events. 1626/3914 cut-off events. For 84097/84109 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 29618 event pairs, 475 based on Foata normal form. 34/3901 useless extension candidates. Maximal degree in co-relation 29109. Up to 2387 conditions per place. [2024-11-17 07:47:08,322 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 475 selfloop transitions, 121 changer transitions 0/611 dead transitions. [2024-11-17 07:47:08,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 611 transitions, 13585 flow [2024-11-17 07:47:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 07:47:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 07:47:08,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 435 transitions. [2024-11-17 07:47:08,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46524064171123 [2024-11-17 07:47:08,323 INFO L175 Difference]: Start difference. First operand has 410 places, 517 transitions, 10907 flow. Second operand 17 states and 435 transitions. [2024-11-17 07:47:08,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 611 transitions, 13585 flow [2024-11-17 07:47:08,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 611 transitions, 13437 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-11-17 07:47:08,658 INFO L231 Difference]: Finished difference. Result has 428 places, 532 transitions, 11488 flow [2024-11-17 07:47:08,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=10785, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11488, PETRI_PLACES=428, PETRI_TRANSITIONS=532} [2024-11-17 07:47:08,659 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 376 predicate places. [2024-11-17 07:47:08,659 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 532 transitions, 11488 flow [2024-11-17 07:47:08,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:08,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:08,659 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:08,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-17 07:47:08,660 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:08,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:08,660 INFO L85 PathProgramCache]: Analyzing trace with hash 718590220, now seen corresponding path program 2 times [2024-11-17 07:47:08,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:08,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183065014] [2024-11-17 07:47:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:08,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:09,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:09,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183065014] [2024-11-17 07:47:09,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183065014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:09,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:09,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:47:09,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865122499] [2024-11-17 07:47:09,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:09,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:47:09,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:09,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:47:09,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:47:09,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:47:09,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 532 transitions, 11488 flow. Second operand has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:09,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:09,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:47:09,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:10,497 INFO L124 PetriNetUnfolderBase]: 1484/3802 cut-off events. [2024-11-17 07:47:10,497 INFO L125 PetriNetUnfolderBase]: For 95160/95248 co-relation queries the response was YES. [2024-11-17 07:47:10,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29730 conditions, 3802 events. 1484/3802 cut-off events. For 95160/95248 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 29928 event pairs, 468 based on Foata normal form. 26/3759 useless extension candidates. Maximal degree in co-relation 29572. Up to 2463 conditions per place. [2024-11-17 07:47:10,553 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 485 selfloop transitions, 142 changer transitions 0/661 dead transitions. [2024-11-17 07:47:10,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 661 transitions, 15227 flow [2024-11-17 07:47:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-17 07:47:10,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-17 07:47:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 520 transitions. [2024-11-17 07:47:10,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4727272727272727 [2024-11-17 07:47:10,555 INFO L175 Difference]: Start difference. First operand has 428 places, 532 transitions, 11488 flow. Second operand 20 states and 520 transitions. [2024-11-17 07:47:10,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 661 transitions, 15227 flow [2024-11-17 07:47:10,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 661 transitions, 15086 flow, removed 51 selfloop flow, removed 5 redundant places. [2024-11-17 07:47:10,879 INFO L231 Difference]: Finished difference. Result has 450 places, 560 transitions, 12513 flow [2024-11-17 07:47:10,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=11370, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12513, PETRI_PLACES=450, PETRI_TRANSITIONS=560} [2024-11-17 07:47:10,880 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 398 predicate places. [2024-11-17 07:47:10,880 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 560 transitions, 12513 flow [2024-11-17 07:47:10,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:10,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:10,880 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:10,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-17 07:47:10,881 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:10,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:10,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1644555456, now seen corresponding path program 3 times [2024-11-17 07:47:10,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:10,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976864211] [2024-11-17 07:47:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:10,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:11,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:11,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976864211] [2024-11-17 07:47:11,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976864211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:11,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:11,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:47:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236100325] [2024-11-17 07:47:11,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:11,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:47:11,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:11,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:47:11,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:47:11,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:47:11,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 560 transitions, 12513 flow. Second operand has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:11,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:11,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:47:11,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:12,898 INFO L124 PetriNetUnfolderBase]: 1580/3995 cut-off events. [2024-11-17 07:47:12,898 INFO L125 PetriNetUnfolderBase]: For 112875/112980 co-relation queries the response was YES. [2024-11-17 07:47:12,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32620 conditions, 3995 events. 1580/3995 cut-off events. For 112875/112980 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 31583 event pairs, 456 based on Foata normal form. 26/3955 useless extension candidates. Maximal degree in co-relation 32455. Up to 2611 conditions per place. [2024-11-17 07:47:12,964 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 510 selfloop transitions, 138 changer transitions 0/682 dead transitions. [2024-11-17 07:47:12,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 682 transitions, 16201 flow [2024-11-17 07:47:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 07:47:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 07:47:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 459 transitions. [2024-11-17 07:47:12,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-11-17 07:47:12,966 INFO L175 Difference]: Start difference. First operand has 450 places, 560 transitions, 12513 flow. Second operand 17 states and 459 transitions. [2024-11-17 07:47:12,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 682 transitions, 16201 flow [2024-11-17 07:47:13,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 682 transitions, 16029 flow, removed 32 selfloop flow, removed 9 redundant places. [2024-11-17 07:47:13,433 INFO L231 Difference]: Finished difference. Result has 462 places, 580 transitions, 13298 flow [2024-11-17 07:47:13,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=12345, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13298, PETRI_PLACES=462, PETRI_TRANSITIONS=580} [2024-11-17 07:47:13,434 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 410 predicate places. [2024-11-17 07:47:13,434 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 580 transitions, 13298 flow [2024-11-17 07:47:13,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:13,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:13,435 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:13,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-17 07:47:13,435 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:13,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:13,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1862693504, now seen corresponding path program 4 times [2024-11-17 07:47:13,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:13,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601327039] [2024-11-17 07:47:13,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:13,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:13,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:13,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601327039] [2024-11-17 07:47:13,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601327039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:13,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:13,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 07:47:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201583027] [2024-11-17 07:47:13,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:13,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:47:13,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:13,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:47:13,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:47:13,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-17 07:47:13,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 580 transitions, 13298 flow. Second operand has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:13,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:13,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-17 07:47:13,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:47:15,406 INFO L124 PetriNetUnfolderBase]: 1707/4250 cut-off events. [2024-11-17 07:47:15,407 INFO L125 PetriNetUnfolderBase]: For 135050/135156 co-relation queries the response was YES. [2024-11-17 07:47:15,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36373 conditions, 4250 events. 1707/4250 cut-off events. For 135050/135156 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 33712 event pairs, 408 based on Foata normal form. 24/4224 useless extension candidates. Maximal degree in co-relation 36203. Up to 2503 conditions per place. [2024-11-17 07:47:15,488 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 488 selfloop transitions, 237 changer transitions 0/759 dead transitions. [2024-11-17 07:47:15,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 759 transitions, 18296 flow [2024-11-17 07:47:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:47:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:47:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 576 transitions. [2024-11-17 07:47:15,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4987012987012987 [2024-11-17 07:47:15,490 INFO L175 Difference]: Start difference. First operand has 462 places, 580 transitions, 13298 flow. Second operand 21 states and 576 transitions. [2024-11-17 07:47:15,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 759 transitions, 18296 flow [2024-11-17 07:47:16,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 759 transitions, 18071 flow, removed 48 selfloop flow, removed 11 redundant places. [2024-11-17 07:47:16,012 INFO L231 Difference]: Finished difference. Result has 477 places, 632 transitions, 15251 flow [2024-11-17 07:47:16,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=13093, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=15251, PETRI_PLACES=477, PETRI_TRANSITIONS=632} [2024-11-17 07:47:16,013 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 425 predicate places. [2024-11-17 07:47:16,013 INFO L471 AbstractCegarLoop]: Abstraction has has 477 places, 632 transitions, 15251 flow [2024-11-17 07:47:16,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:16,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:47:16,013 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:47:16,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-17 07:47:16,014 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-17 07:47:16,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:47:16,014 INFO L85 PathProgramCache]: Analyzing trace with hash 952456901, now seen corresponding path program 5 times [2024-11-17 07:47:16,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:47:16,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172640962] [2024-11-17 07:47:16,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:47:16,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:47:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:47:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:47:16,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:47:16,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172640962] [2024-11-17 07:47:16,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172640962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:47:16,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:47:16,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 07:47:16,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580327825] [2024-11-17 07:47:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:47:16,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:47:16,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:47:16,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:47:16,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:47:16,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-17 07:47:16,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 632 transitions, 15251 flow. Second operand has 11 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:47:16,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:47:16,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-17 07:47:16,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand