./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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_06-tricky_address1.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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:57:35,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:57:35,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:57:35,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:57:35,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:57:35,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:57:35,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:57:35,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:57:35,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:57:35,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:57:35,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:57:35,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:57:35,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:57:35,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:57:35,772 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:57:35,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:57:35,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:57:35,773 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:57:35,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:57:35,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:57:35,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:57:35,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:57:35,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:57:35,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:57:35,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:57:35,776 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:57:35,777 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:57:35,777 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:57:35,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:57:35,777 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:57:35,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:57:35,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:57:35,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:57:35,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:57:35,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:35,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:57:35,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:57:35,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:57:35,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:57:35,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:57:35,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:57:35,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:57:35,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:57:35,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:57:35,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-19 13:57:35,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:57:36,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:57:36,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:57:36,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:57:36,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:57:36,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-19 13:57:37,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:57:37,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:57:37,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-19 13:57:37,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17a92dfb5/face262fd6df4a188e2a58346f415647/FLAGc235e64ea [2024-11-19 13:57:37,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17a92dfb5/face262fd6df4a188e2a58346f415647 [2024-11-19 13:57:37,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:57:37,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:57:37,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:37,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:57:37,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:57:37,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7190d4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:37, skipping insertion in model container [2024-11-19 13:57:37,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:37" (1/1) ... [2024-11-19 13:57:37,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:57:37,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:38,007 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:57:38,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:57:38,106 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:57:38,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38 WrapperNode [2024-11-19 13:57:38,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:38,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:38,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:57:38,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:57:38,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,167 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-19 13:57:38,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:57:38,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:57:38,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:57:38,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:57:38,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,214 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-19 13:57:38,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:57:38,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:57:38,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:57:38,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:57:38,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (1/1) ... [2024-11-19 13:57:38,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:38,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:38,277 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) [2024-11-19 13:57:38,284 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 [2024-11-19 13:57:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 13:57:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:57:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:57:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 13:57:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:57:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 13:57:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 13:57:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:57:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:57:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:57:38,329 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:57:38,429 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:57:38,431 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:57:38,624 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:57:38,624 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:57:38,945 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:57:38,945 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 13:57:38,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:38 BoogieIcfgContainer [2024-11-19 13:57:38,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:57:38,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:57:38,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:57:38,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:57:38,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:57:37" (1/3) ... [2024-11-19 13:57:38,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cf611f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:38, skipping insertion in model container [2024-11-19 13:57:38,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:38" (2/3) ... [2024-11-19 13:57:38,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cf611f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:57:38, skipping insertion in model container [2024-11-19 13:57:38,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:38" (3/3) ... [2024-11-19 13:57:38,955 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-19 13:57:38,971 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:57:38,972 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 13:57:38,972 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:57:39,006 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:57:39,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 58 flow [2024-11-19 13:57:39,064 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-19 13:57:39,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:39,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-11-19 13:57:39,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 58 flow [2024-11-19 13:57:39,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 26 transitions, 55 flow [2024-11-19 13:57:39,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:57:39,086 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;@bbb75d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:57:39,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-19 13:57:39,092 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:57:39,093 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 13:57:39,093 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:39,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:39,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 13:57:39,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:39,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash 343348, now seen corresponding path program 1 times [2024-11-19 13:57:39,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:39,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50031391] [2024-11-19 13:57:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:39,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:39,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50031391] [2024-11-19 13:57:39,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50031391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:39,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:39,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:39,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051519976] [2024-11-19 13:57:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:39,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:57:39,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:39,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:57:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:57:39,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:39,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:39,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:39,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:39,572 INFO L124 PetriNetUnfolderBase]: 37/119 cut-off events. [2024-11-19 13:57:39,573 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:57:39,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 119 events. 37/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 400 event pairs, 36 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 192. Up to 92 conditions per place. [2024-11-19 13:57:39,575 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 18 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-19 13:57:39,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 101 flow [2024-11-19 13:57:39,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:57:39,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:57:39,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2024-11-19 13:57:39,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-11-19 13:57:39,587 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 4 states and 56 transitions. [2024-11-19 13:57:39,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 101 flow [2024-11-19 13:57:39,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:39,591 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 78 flow [2024-11-19 13:57:39,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2024-11-19 13:57:39,596 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2024-11-19 13:57:39,596 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 78 flow [2024-11-19 13:57:39,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:39,597 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 13:57:39,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:57:39,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:39,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1639079414, now seen corresponding path program 1 times [2024-11-19 13:57:39,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:39,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837156720] [2024-11-19 13:57:39,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:39,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:39,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837156720] [2024-11-19 13:57:39,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837156720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:39,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098021188] [2024-11-19 13:57:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:39,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:39,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:39,686 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) [2024-11-19 13:57:39,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:57:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:39,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:57:39,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:39,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:57:39,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098021188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:39,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:57:39,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 13:57:39,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472149627] [2024-11-19 13:57:39,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:39,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:57:39,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:39,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:57:39,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:57:39,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:39,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:39,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:39,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:39,901 INFO L124 PetriNetUnfolderBase]: 37/118 cut-off events. [2024-11-19 13:57:39,902 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 13:57:39,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 118 events. 37/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 395 event pairs, 36 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 209. Up to 87 conditions per place. [2024-11-19 13:57:39,903 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 14 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2024-11-19 13:57:39,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 114 flow [2024-11-19 13:57:39,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 69 transitions. [2024-11-19 13:57:39,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-19 13:57:39,906 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 78 flow. Second operand 6 states and 69 transitions. [2024-11-19 13:57:39,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 114 flow [2024-11-19 13:57:39,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:57:39,908 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 84 flow [2024-11-19 13:57:39,910 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2024-11-19 13:57:39,910 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2024-11-19 13:57:39,910 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 84 flow [2024-11-19 13:57:39,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:39,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:39,911 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 13:57:39,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 13:57:40,111 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 [2024-11-19 13:57:40,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:40,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash -728145382, now seen corresponding path program 1 times [2024-11-19 13:57:40,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021876809] [2024-11-19 13:57:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:57:40,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:40,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021876809] [2024-11-19 13:57:40,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021876809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:40,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:40,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:57:40,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309578616] [2024-11-19 13:57:40,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:57:40,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:57:40,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:57:40,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:40,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:40,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:40,222 INFO L124 PetriNetUnfolderBase]: 37/117 cut-off events. [2024-11-19 13:57:40,224 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 13:57:40,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 117 events. 37/117 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 391 event pairs, 36 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 205. Up to 90 conditions per place. [2024-11-19 13:57:40,225 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 15 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-11-19 13:57:40,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 118 flow [2024-11-19 13:57:40,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:57:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:57:40,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-19 13:57:40,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-11-19 13:57:40,227 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 84 flow. Second operand 3 states and 42 transitions. [2024-11-19 13:57:40,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 118 flow [2024-11-19 13:57:40,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 96 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 13:57:40,228 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 66 flow [2024-11-19 13:57:40,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2024-11-19 13:57:40,228 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-11-19 13:57:40,229 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 66 flow [2024-11-19 13:57:40,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:40,229 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:40,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:57:40,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:40,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1757158766, now seen corresponding path program 1 times [2024-11-19 13:57:40,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460846516] [2024-11-19 13:57:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:40,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:40,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460846516] [2024-11-19 13:57:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460846516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:40,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992106321] [2024-11-19 13:57:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:40,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:40,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:40,310 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) [2024-11-19 13:57:40,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:57:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:40,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:57:40,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:40,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:40,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992106321] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:40,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:57:40,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045476633] [2024-11-19 13:57:40,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:40,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:40,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:40,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:40,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:40,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 66 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:40,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:40,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:40,539 INFO L124 PetriNetUnfolderBase]: 37/121 cut-off events. [2024-11-19 13:57:40,539 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-19 13:57:40,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 121 events. 37/121 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 388 event pairs, 36 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 198. Up to 88 conditions per place. [2024-11-19 13:57:40,540 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 15 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2024-11-19 13:57:40,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 125 flow [2024-11-19 13:57:40,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:57:40,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:57:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 80 transitions. [2024-11-19 13:57:40,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42328042328042326 [2024-11-19 13:57:40,541 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 66 flow. Second operand 7 states and 80 transitions. [2024-11-19 13:57:40,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 125 flow [2024-11-19 13:57:40,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 111 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:40,542 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 92 flow [2024-11-19 13:57:40,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-19 13:57:40,543 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-11-19 13:57:40,543 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 92 flow [2024-11-19 13:57:40,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:40,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:40,543 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:40,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 13:57:40,744 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 [2024-11-19 13:57:40,744 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:40,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:40,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1908642990, now seen corresponding path program 2 times [2024-11-19 13:57:40,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:40,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300924835] [2024-11-19 13:57:40,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:40,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:40,777 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:40,777 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:57:41,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:41,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300924835] [2024-11-19 13:57:41,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300924835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:41,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:41,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:41,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360924750] [2024-11-19 13:57:41,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:41,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:57:41,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:41,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:57:41,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:57:41,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:41,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:41,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:41,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:41,642 INFO L124 PetriNetUnfolderBase]: 43/128 cut-off events. [2024-11-19 13:57:41,643 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-19 13:57:41,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 128 events. 43/128 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 383 event pairs, 18 based on Foata normal form. 7/129 useless extension candidates. Maximal degree in co-relation 222. Up to 73 conditions per place. [2024-11-19 13:57:41,643 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 28 selfloop transitions, 5 changer transitions 6/44 dead transitions. [2024-11-19 13:57:41,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 200 flow [2024-11-19 13:57:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2024-11-19 13:57:41,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2024-11-19 13:57:41,645 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 92 flow. Second operand 6 states and 86 transitions. [2024-11-19 13:57:41,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 200 flow [2024-11-19 13:57:41,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 44 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:41,646 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 115 flow [2024-11-19 13:57:41,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-19 13:57:41,647 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 14 predicate places. [2024-11-19 13:57:41,647 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 115 flow [2024-11-19 13:57:41,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:41,647 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:57:41,648 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1909413942, now seen corresponding path program 1 times [2024-11-19 13:57:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:41,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162651436] [2024-11-19 13:57:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:41,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:41,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:41,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162651436] [2024-11-19 13:57:41,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162651436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:41,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582217773] [2024-11-19 13:57:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:41,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:41,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:41,764 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) [2024-11-19 13:57:41,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:57:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:41,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 13:57:41,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:41,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:41,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:41,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582217773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:41,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:41,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 13:57:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852853551] [2024-11-19 13:57:41,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:41,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 13:57:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 13:57:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 13:57:41,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:41,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 115 flow. Second operand has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:41,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:41,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:41,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:42,061 INFO L124 PetriNetUnfolderBase]: 27/117 cut-off events. [2024-11-19 13:57:42,061 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-19 13:57:42,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 117 events. 27/117 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 326 event pairs, 26 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 253. Up to 69 conditions per place. [2024-11-19 13:57:42,062 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 15 changer transitions 0/38 dead transitions. [2024-11-19 13:57:42,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 38 transitions, 225 flow [2024-11-19 13:57:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:57:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:57:42,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 154 transitions. [2024-11-19 13:57:42,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3802469135802469 [2024-11-19 13:57:42,064 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 115 flow. Second operand 15 states and 154 transitions. [2024-11-19 13:57:42,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 38 transitions, 225 flow [2024-11-19 13:57:42,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 38 transitions, 216 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:42,066 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 203 flow [2024-11-19 13:57:42,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=203, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2024-11-19 13:57:42,067 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2024-11-19 13:57:42,067 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 203 flow [2024-11-19 13:57:42,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:42,067 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:42,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 13:57:42,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:42,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:42,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash -671156554, now seen corresponding path program 2 times [2024-11-19 13:57:42,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:42,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046888975] [2024-11-19 13:57:42,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:42,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:42,331 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:42,333 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 13:57:42,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046888975] [2024-11-19 13:57:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046888975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:42,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:42,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:57:42,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432688769] [2024-11-19 13:57:42,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:42,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:57:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:42,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:57:42,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:57:42,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:42,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:42,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:42,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:42,856 INFO L124 PetriNetUnfolderBase]: 30/119 cut-off events. [2024-11-19 13:57:42,856 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-19 13:57:42,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 119 events. 30/119 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 319 event pairs, 8 based on Foata normal form. 14/133 useless extension candidates. Maximal degree in co-relation 208. Up to 51 conditions per place. [2024-11-19 13:57:42,857 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 38 selfloop transitions, 6 changer transitions 4/53 dead transitions. [2024-11-19 13:57:42,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 53 transitions, 341 flow [2024-11-19 13:57:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:57:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:57:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-11-19 13:57:42,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2024-11-19 13:57:42,858 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 203 flow. Second operand 6 states and 87 transitions. [2024-11-19 13:57:42,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 53 transitions, 341 flow [2024-11-19 13:57:42,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 53 transitions, 331 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:42,861 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 233 flow [2024-11-19 13:57:42,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2024-11-19 13:57:42,862 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-11-19 13:57:42,862 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 233 flow [2024-11-19 13:57:42,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:42,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:42,862 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:42,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:57:42,862 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:42,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:42,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1592969113, now seen corresponding path program 1 times [2024-11-19 13:57:42,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:42,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575991979] [2024-11-19 13:57:42,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:42,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:43,067 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:43,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:43,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575991979] [2024-11-19 13:57:43,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575991979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:43,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869933775] [2024-11-19 13:57:43,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:43,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:43,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:43,071 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) [2024-11-19 13:57:43,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:57:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:43,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 13:57:43,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:43,199 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:43,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:43,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869933775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:43,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:43,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-19 13:57:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714336077] [2024-11-19 13:57:43,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:43,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 13:57:43,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:43,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 13:57:43,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 13:57:43,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:57:43,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 233 flow. Second operand has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:43,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:57:43,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:43,533 INFO L124 PetriNetUnfolderBase]: 26/123 cut-off events. [2024-11-19 13:57:43,533 INFO L125 PetriNetUnfolderBase]: For 168/169 co-relation queries the response was YES. [2024-11-19 13:57:43,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 123 events. 26/123 cut-off events. For 168/169 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 295 event pairs, 22 based on Foata normal form. 3/126 useless extension candidates. Maximal degree in co-relation 336. Up to 68 conditions per place. [2024-11-19 13:57:43,534 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 19 selfloop transitions, 21 changer transitions 0/47 dead transitions. [2024-11-19 13:57:43,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 47 transitions, 367 flow [2024-11-19 13:57:43,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:57:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:57:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 207 transitions. [2024-11-19 13:57:43,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36507936507936506 [2024-11-19 13:57:43,536 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 233 flow. Second operand 21 states and 207 transitions. [2024-11-19 13:57:43,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 47 transitions, 367 flow [2024-11-19 13:57:43,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 47 transitions, 359 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 13:57:43,540 INFO L231 Difference]: Finished difference. Result has 82 places, 47 transitions, 336 flow [2024-11-19 13:57:43,540 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=336, PETRI_PLACES=82, PETRI_TRANSITIONS=47} [2024-11-19 13:57:43,541 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 53 predicate places. [2024-11-19 13:57:43,541 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 47 transitions, 336 flow [2024-11-19 13:57:43,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:43,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:43,542 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:43,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 13:57:43,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:43,742 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:43,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:43,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1769171, now seen corresponding path program 2 times [2024-11-19 13:57:43,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:43,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600408847] [2024-11-19 13:57:43,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:43,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:43,791 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:43,791 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:46,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:46,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600408847] [2024-11-19 13:57:46,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600408847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:46,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:46,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:46,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587001899] [2024-11-19 13:57:46,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:46,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:46,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:46,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:46,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:46,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-19 13:57:46,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 47 transitions, 336 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:46,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:46,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-19 13:57:46,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:48,250 INFO L124 PetriNetUnfolderBase]: 58/184 cut-off events. [2024-11-19 13:57:48,250 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2024-11-19 13:57:48,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 184 events. 58/184 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 577 event pairs, 12 based on Foata normal form. 3/187 useless extension candidates. Maximal degree in co-relation 409. Up to 39 conditions per place. [2024-11-19 13:57:48,254 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 60 selfloop transitions, 19 changer transitions 6/86 dead transitions. [2024-11-19 13:57:48,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 86 transitions, 632 flow [2024-11-19 13:57:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:57:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:57:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 119 transitions. [2024-11-19 13:57:48,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33903133903133903 [2024-11-19 13:57:48,256 INFO L175 Difference]: Start difference. First operand has 82 places, 47 transitions, 336 flow. Second operand 13 states and 119 transitions. [2024-11-19 13:57:48,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 86 transitions, 632 flow [2024-11-19 13:57:48,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 86 transitions, 589 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-19 13:57:48,259 INFO L231 Difference]: Finished difference. Result has 86 places, 61 transitions, 416 flow [2024-11-19 13:57:48,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=416, PETRI_PLACES=86, PETRI_TRANSITIONS=61} [2024-11-19 13:57:48,260 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 57 predicate places. [2024-11-19 13:57:48,260 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 61 transitions, 416 flow [2024-11-19 13:57:48,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:48,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:48,261 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:48,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 13:57:48,261 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:48,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:48,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1185294457, now seen corresponding path program 3 times [2024-11-19 13:57:48,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:48,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965278038] [2024-11-19 13:57:48,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:57:48,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:48,302 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:57:48,303 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:49,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965278038] [2024-11-19 13:57:49,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965278038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:49,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:49,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:49,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691742554] [2024-11-19 13:57:49,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:49,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:49,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:49,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:49,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-19 13:57:49,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 61 transitions, 416 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:49,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:49,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-19 13:57:49,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:50,753 INFO L124 PetriNetUnfolderBase]: 64/207 cut-off events. [2024-11-19 13:57:50,753 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-19 13:57:50,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 207 events. 64/207 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 723 event pairs, 18 based on Foata normal form. 3/210 useless extension candidates. Maximal degree in co-relation 642. Up to 52 conditions per place. [2024-11-19 13:57:50,755 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 60 selfloop transitions, 28 changer transitions 7/96 dead transitions. [2024-11-19 13:57:50,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 783 flow [2024-11-19 13:57:50,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 13:57:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-19 13:57:50,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 133 transitions. [2024-11-19 13:57:50,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.289760348583878 [2024-11-19 13:57:50,757 INFO L175 Difference]: Start difference. First operand has 86 places, 61 transitions, 416 flow. Second operand 17 states and 133 transitions. [2024-11-19 13:57:50,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 783 flow [2024-11-19 13:57:50,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 96 transitions, 752 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:50,761 INFO L231 Difference]: Finished difference. Result has 102 places, 72 transitions, 554 flow [2024-11-19 13:57:50,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=554, PETRI_PLACES=102, PETRI_TRANSITIONS=72} [2024-11-19 13:57:50,762 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 73 predicate places. [2024-11-19 13:57:50,762 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 72 transitions, 554 flow [2024-11-19 13:57:50,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:50,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:50,762 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:50,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:57:50,763 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:50,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:50,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1768980874, now seen corresponding path program 1 times [2024-11-19 13:57:50,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:50,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720229308] [2024-11-19 13:57:50,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:57:50,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:57:53,239 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:53,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:53,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720229308] [2024-11-19 13:57:53,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720229308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:53,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:53,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:53,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507089432] [2024-11-19 13:57:53,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:53,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:53,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:53,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:53,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:53,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-19 13:57:53,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 72 transitions, 554 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:53,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:53,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-19 13:57:53,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:54,180 INFO L124 PetriNetUnfolderBase]: 67/218 cut-off events. [2024-11-19 13:57:54,181 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2024-11-19 13:57:54,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 218 events. 67/218 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 789 event pairs, 28 based on Foata normal form. 3/221 useless extension candidates. Maximal degree in co-relation 721. Up to 106 conditions per place. [2024-11-19 13:57:54,182 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 65 selfloop transitions, 28 changer transitions 5/99 dead transitions. [2024-11-19 13:57:54,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 99 transitions, 882 flow [2024-11-19 13:57:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 13:57:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 13:57:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 126 transitions. [2024-11-19 13:57:54,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2916666666666667 [2024-11-19 13:57:54,184 INFO L175 Difference]: Start difference. First operand has 102 places, 72 transitions, 554 flow. Second operand 16 states and 126 transitions. [2024-11-19 13:57:54,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 99 transitions, 882 flow [2024-11-19 13:57:54,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 99 transitions, 833 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-19 13:57:54,190 INFO L231 Difference]: Finished difference. Result has 117 places, 81 transitions, 670 flow [2024-11-19 13:57:54,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=670, PETRI_PLACES=117, PETRI_TRANSITIONS=81} [2024-11-19 13:57:54,190 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 88 predicate places. [2024-11-19 13:57:54,190 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 81 transitions, 670 flow [2024-11-19 13:57:54,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:54,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:54,191 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:54,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 13:57:54,191 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:54,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:54,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1795792774, now seen corresponding path program 2 times [2024-11-19 13:57:54,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:54,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121277279] [2024-11-19 13:57:54,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:54,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:54,220 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:57:54,220 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:57:58,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:58,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121277279] [2024-11-19 13:57:58,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121277279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:57:58,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:57:58,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:57:58,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522761741] [2024-11-19 13:57:58,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:57:58,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:57:58,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:58,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:57:58,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:57:58,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-19 13:57:58,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 81 transitions, 670 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:58,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:58,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-19 13:57:58,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:59,366 INFO L124 PetriNetUnfolderBase]: 70/230 cut-off events. [2024-11-19 13:57:59,366 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2024-11-19 13:57:59,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 230 events. 70/230 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 886 event pairs, 32 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 808. Up to 113 conditions per place. [2024-11-19 13:57:59,368 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 62 selfloop transitions, 34 changer transitions 2/99 dead transitions. [2024-11-19 13:57:59,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 99 transitions, 946 flow [2024-11-19 13:57:59,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:57:59,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:57:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 124 transitions. [2024-11-19 13:57:59,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30617283950617286 [2024-11-19 13:57:59,369 INFO L175 Difference]: Start difference. First operand has 117 places, 81 transitions, 670 flow. Second operand 15 states and 124 transitions. [2024-11-19 13:57:59,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 99 transitions, 946 flow [2024-11-19 13:57:59,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 99 transitions, 917 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-19 13:57:59,374 INFO L231 Difference]: Finished difference. Result has 130 places, 86 transitions, 775 flow [2024-11-19 13:57:59,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=775, PETRI_PLACES=130, PETRI_TRANSITIONS=86} [2024-11-19 13:57:59,374 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2024-11-19 13:57:59,375 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 86 transitions, 775 flow [2024-11-19 13:57:59,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:57:59,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:59,375 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:57:59,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:57:59,375 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:57:59,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1768058314, now seen corresponding path program 3 times [2024-11-19 13:57:59,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:59,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101366469] [2024-11-19 13:57:59,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:57:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:59,393 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:57:59,393 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:03,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:03,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101366469] [2024-11-19 13:58:03,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101366469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:03,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:03,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:03,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17835433] [2024-11-19 13:58:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:03,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:03,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:03,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:03,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:03,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-19 13:58:03,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 86 transitions, 775 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:03,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:03,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-19 13:58:03,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:04,270 INFO L124 PetriNetUnfolderBase]: 75/247 cut-off events. [2024-11-19 13:58:04,271 INFO L125 PetriNetUnfolderBase]: For 654/654 co-relation queries the response was YES. [2024-11-19 13:58:04,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 247 events. 75/247 cut-off events. For 654/654 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1018 event pairs, 27 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 949. Up to 110 conditions per place. [2024-11-19 13:58:04,272 INFO L140 encePairwiseOnDemand]: 15/27 looper letters, 72 selfloop transitions, 37 changer transitions 2/112 dead transitions. [2024-11-19 13:58:04,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 112 transitions, 1132 flow [2024-11-19 13:58:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 13:58:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 13:58:04,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 124 transitions. [2024-11-19 13:58:04,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30617283950617286 [2024-11-19 13:58:04,276 INFO L175 Difference]: Start difference. First operand has 130 places, 86 transitions, 775 flow. Second operand 15 states and 124 transitions. [2024-11-19 13:58:04,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 112 transitions, 1132 flow [2024-11-19 13:58:04,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 112 transitions, 1088 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-11-19 13:58:04,284 INFO L231 Difference]: Finished difference. Result has 141 places, 94 transitions, 892 flow [2024-11-19 13:58:04,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=892, PETRI_PLACES=141, PETRI_TRANSITIONS=94} [2024-11-19 13:58:04,285 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 112 predicate places. [2024-11-19 13:58:04,285 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 94 transitions, 892 flow [2024-11-19 13:58:04,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:04,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:04,285 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:04,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:58:04,286 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:04,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:04,286 INFO L85 PathProgramCache]: Analyzing trace with hash -754495472, now seen corresponding path program 4 times [2024-11-19 13:58:04,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:04,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271868170] [2024-11-19 13:58:04,287 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:58:04,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:04,336 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:58:04,336 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:07,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:07,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271868170] [2024-11-19 13:58:07,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271868170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:07,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:07,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:07,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369811026] [2024-11-19 13:58:07,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:07,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:07,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:07,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:07,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-11-19 13:58:07,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 94 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:07,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:07,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-11-19 13:58:07,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:08,122 INFO L124 PetriNetUnfolderBase]: 74/253 cut-off events. [2024-11-19 13:58:08,122 INFO L125 PetriNetUnfolderBase]: For 828/828 co-relation queries the response was YES. [2024-11-19 13:58:08,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 253 events. 74/253 cut-off events. For 828/828 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1077 event pairs, 35 based on Foata normal form. 3/256 useless extension candidates. Maximal degree in co-relation 1052. Up to 117 conditions per place. [2024-11-19 13:58:08,125 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 71 selfloop transitions, 38 changer transitions 2/113 dead transitions. [2024-11-19 13:58:08,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 113 transitions, 1245 flow [2024-11-19 13:58:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 13:58:08,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 13:58:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 130 transitions. [2024-11-19 13:58:08,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3439153439153439 [2024-11-19 13:58:08,127 INFO L175 Difference]: Start difference. First operand has 141 places, 94 transitions, 892 flow. Second operand 14 states and 130 transitions. [2024-11-19 13:58:08,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 113 transitions, 1245 flow [2024-11-19 13:58:08,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 113 transitions, 1180 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-11-19 13:58:08,134 INFO L231 Difference]: Finished difference. Result has 151 places, 100 transitions, 1010 flow [2024-11-19 13:58:08,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1010, PETRI_PLACES=151, PETRI_TRANSITIONS=100} [2024-11-19 13:58:08,134 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 122 predicate places. [2024-11-19 13:58:08,134 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 100 transitions, 1010 flow [2024-11-19 13:58:08,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:08,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:08,135 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:08,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 13:58:08,135 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:08,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:08,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1199161687, now seen corresponding path program 4 times [2024-11-19 13:58:08,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:08,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459012812] [2024-11-19 13:58:08,136 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:58:08,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:08,180 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:58:08,180 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:08,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:08,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459012812] [2024-11-19 13:58:08,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459012812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:08,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:08,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:08,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086891305] [2024-11-19 13:58:08,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:08,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:58:08,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:08,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:58:08,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:58:08,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:58:08,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 100 transitions, 1010 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:08,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:08,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:58:08,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:09,481 INFO L124 PetriNetUnfolderBase]: 52/241 cut-off events. [2024-11-19 13:58:09,481 INFO L125 PetriNetUnfolderBase]: For 1024/1024 co-relation queries the response was YES. [2024-11-19 13:58:09,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 241 events. 52/241 cut-off events. For 1024/1024 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1177 event pairs, 13 based on Foata normal form. 9/250 useless extension candidates. Maximal degree in co-relation 1021. Up to 79 conditions per place. [2024-11-19 13:58:09,483 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 61 selfloop transitions, 30 changer transitions 11/122 dead transitions. [2024-11-19 13:58:09,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 122 transitions, 1325 flow [2024-11-19 13:58:09,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 13:58:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 13:58:09,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 182 transitions. [2024-11-19 13:58:09,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-11-19 13:58:09,485 INFO L175 Difference]: Start difference. First operand has 151 places, 100 transitions, 1010 flow. Second operand 16 states and 182 transitions. [2024-11-19 13:58:09,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 122 transitions, 1325 flow [2024-11-19 13:58:09,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 122 transitions, 1293 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:09,495 INFO L231 Difference]: Finished difference. Result has 167 places, 102 transitions, 1065 flow [2024-11-19 13:58:09,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1065, PETRI_PLACES=167, PETRI_TRANSITIONS=102} [2024-11-19 13:58:09,495 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 138 predicate places. [2024-11-19 13:58:09,495 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 102 transitions, 1065 flow [2024-11-19 13:58:09,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:09,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:09,496 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:09,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 13:58:09,496 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:09,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:09,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1025730504, now seen corresponding path program 1 times [2024-11-19 13:58:09,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:09,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875631726] [2024-11-19 13:58:09,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:09,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:11,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:11,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875631726] [2024-11-19 13:58:11,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875631726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:11,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:11,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:11,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688464850] [2024-11-19 13:58:11,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:11,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:11,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:11,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:11,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:12,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-11-19 13:58:12,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 102 transitions, 1065 flow. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:12,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:12,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-11-19 13:58:12,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:12,500 INFO L124 PetriNetUnfolderBase]: 64/243 cut-off events. [2024-11-19 13:58:12,500 INFO L125 PetriNetUnfolderBase]: For 1106/1106 co-relation queries the response was YES. [2024-11-19 13:58:12,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 243 events. 64/243 cut-off events. For 1106/1106 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1063 event pairs, 23 based on Foata normal form. 2/245 useless extension candidates. Maximal degree in co-relation 1090. Up to 79 conditions per place. [2024-11-19 13:58:12,502 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 62 selfloop transitions, 34 changer transitions 4/112 dead transitions. [2024-11-19 13:58:12,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 112 transitions, 1315 flow [2024-11-19 13:58:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 13:58:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 13:58:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 103 transitions. [2024-11-19 13:58:12,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31790123456790126 [2024-11-19 13:58:12,504 INFO L175 Difference]: Start difference. First operand has 167 places, 102 transitions, 1065 flow. Second operand 12 states and 103 transitions. [2024-11-19 13:58:12,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 112 transitions, 1315 flow [2024-11-19 13:58:12,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 112 transitions, 1233 flow, removed 9 selfloop flow, removed 17 redundant places. [2024-11-19 13:58:12,511 INFO L231 Difference]: Finished difference. Result has 156 places, 101 transitions, 1043 flow [2024-11-19 13:58:12,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1043, PETRI_PLACES=156, PETRI_TRANSITIONS=101} [2024-11-19 13:58:12,512 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 127 predicate places. [2024-11-19 13:58:12,512 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 101 transitions, 1043 flow [2024-11-19 13:58:12,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:12,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:12,512 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:12,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 13:58:12,512 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:12,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:12,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1024767452, now seen corresponding path program 1 times [2024-11-19 13:58:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:12,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583005351] [2024-11-19 13:58:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:12,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:14,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:14,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583005351] [2024-11-19 13:58:14,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583005351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:14,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:14,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:14,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462440634] [2024-11-19 13:58:14,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:14,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:14,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:14,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:14,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:14,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 101 transitions, 1043 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:14,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:14,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:14,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:15,790 INFO L124 PetriNetUnfolderBase]: 53/224 cut-off events. [2024-11-19 13:58:15,790 INFO L125 PetriNetUnfolderBase]: For 924/924 co-relation queries the response was YES. [2024-11-19 13:58:15,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 224 events. 53/224 cut-off events. For 924/924 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1004 event pairs, 22 based on Foata normal form. 3/224 useless extension candidates. Maximal degree in co-relation 983. Up to 111 conditions per place. [2024-11-19 13:58:15,792 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 56 selfloop transitions, 33 changer transitions 7/113 dead transitions. [2024-11-19 13:58:15,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 113 transitions, 1278 flow [2024-11-19 13:58:15,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:15,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:15,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 128 transitions. [2024-11-19 13:58:15,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3646723646723647 [2024-11-19 13:58:15,794 INFO L175 Difference]: Start difference. First operand has 156 places, 101 transitions, 1043 flow. Second operand 13 states and 128 transitions. [2024-11-19 13:58:15,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 113 transitions, 1278 flow [2024-11-19 13:58:15,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 113 transitions, 1215 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-19 13:58:15,801 INFO L231 Difference]: Finished difference. Result has 160 places, 97 transitions, 1016 flow [2024-11-19 13:58:15,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1016, PETRI_PLACES=160, PETRI_TRANSITIONS=97} [2024-11-19 13:58:15,802 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 131 predicate places. [2024-11-19 13:58:15,802 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 97 transitions, 1016 flow [2024-11-19 13:58:15,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:15,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:15,803 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:15,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 13:58:15,803 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:15,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash 996168092, now seen corresponding path program 2 times [2024-11-19 13:58:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:15,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756983536] [2024-11-19 13:58:15,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:15,823 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:15,827 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:18,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:18,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756983536] [2024-11-19 13:58:18,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756983536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:18,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:18,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:18,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180893695] [2024-11-19 13:58:18,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:18,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:18,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:18,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:18,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:18,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:18,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 97 transitions, 1016 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:18,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:18,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:18,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:19,746 INFO L124 PetriNetUnfolderBase]: 51/224 cut-off events. [2024-11-19 13:58:19,747 INFO L125 PetriNetUnfolderBase]: For 1054/1054 co-relation queries the response was YES. [2024-11-19 13:58:19,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 224 events. 51/224 cut-off events. For 1054/1054 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 992 event pairs, 25 based on Foata normal form. 6/230 useless extension candidates. Maximal degree in co-relation 1039. Up to 109 conditions per place. [2024-11-19 13:58:19,749 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 50 selfloop transitions, 30 changer transitions 13/108 dead transitions. [2024-11-19 13:58:19,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 108 transitions, 1261 flow [2024-11-19 13:58:19,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:19,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 125 transitions. [2024-11-19 13:58:19,750 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3561253561253561 [2024-11-19 13:58:19,750 INFO L175 Difference]: Start difference. First operand has 160 places, 97 transitions, 1016 flow. Second operand 13 states and 125 transitions. [2024-11-19 13:58:19,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 108 transitions, 1261 flow [2024-11-19 13:58:19,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 108 transitions, 1159 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-19 13:58:19,756 INFO L231 Difference]: Finished difference. Result has 155 places, 91 transitions, 918 flow [2024-11-19 13:58:19,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=918, PETRI_PLACES=155, PETRI_TRANSITIONS=91} [2024-11-19 13:58:19,757 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 126 predicate places. [2024-11-19 13:58:19,757 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 91 transitions, 918 flow [2024-11-19 13:58:19,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:19,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:19,757 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:19,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 13:58:19,758 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:19,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:19,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1886316128, now seen corresponding path program 3 times [2024-11-19 13:58:19,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:19,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689412017] [2024-11-19 13:58:19,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:58:19,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:19,777 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:58:19,777 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:22,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:22,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689412017] [2024-11-19 13:58:22,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689412017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:22,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:22,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476922227] [2024-11-19 13:58:22,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:22,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:22,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:22,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:22,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:22,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 91 transitions, 918 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:22,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:22,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:22,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:23,612 INFO L124 PetriNetUnfolderBase]: 43/192 cut-off events. [2024-11-19 13:58:23,613 INFO L125 PetriNetUnfolderBase]: For 824/824 co-relation queries the response was YES. [2024-11-19 13:58:23,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 192 events. 43/192 cut-off events. For 824/824 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 740 event pairs, 22 based on Foata normal form. 3/195 useless extension candidates. Maximal degree in co-relation 861. Up to 95 conditions per place. [2024-11-19 13:58:23,614 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 47 selfloop transitions, 29 changer transitions 11/99 dead transitions. [2024-11-19 13:58:23,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 99 transitions, 1107 flow [2024-11-19 13:58:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 13:58:23,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 13:58:23,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 132 transitions. [2024-11-19 13:58:23,620 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492063492063492 [2024-11-19 13:58:23,620 INFO L175 Difference]: Start difference. First operand has 155 places, 91 transitions, 918 flow. Second operand 14 states and 132 transitions. [2024-11-19 13:58:23,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 99 transitions, 1107 flow [2024-11-19 13:58:23,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 99 transitions, 1001 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-11-19 13:58:23,627 INFO L231 Difference]: Finished difference. Result has 148 places, 85 transitions, 808 flow [2024-11-19 13:58:23,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=808, PETRI_PLACES=148, PETRI_TRANSITIONS=85} [2024-11-19 13:58:23,628 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 119 predicate places. [2024-11-19 13:58:23,628 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 85 transitions, 808 flow [2024-11-19 13:58:23,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:23,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:23,628 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:23,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 13:58:23,629 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:23,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:23,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1673287838, now seen corresponding path program 1 times [2024-11-19 13:58:23,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:23,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158601466] [2024-11-19 13:58:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:23,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:25,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:25,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158601466] [2024-11-19 13:58:25,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158601466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:25,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:25,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 13:58:25,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808049274] [2024-11-19 13:58:25,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:25,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 13:58:25,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 13:58:25,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:58:25,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:25,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 85 transitions, 808 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:25,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:25,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:25,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:26,010 INFO L124 PetriNetUnfolderBase]: 41/197 cut-off events. [2024-11-19 13:58:26,011 INFO L125 PetriNetUnfolderBase]: For 689/689 co-relation queries the response was YES. [2024-11-19 13:58:26,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 197 events. 41/197 cut-off events. For 689/689 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 819 event pairs, 18 based on Foata normal form. 8/205 useless extension candidates. Maximal degree in co-relation 848. Up to 77 conditions per place. [2024-11-19 13:58:26,012 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 50 selfloop transitions, 15 changer transitions 23/98 dead transitions. [2024-11-19 13:58:26,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 98 transitions, 1058 flow [2024-11-19 13:58:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:58:26,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 13:58:26,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-19 13:58:26,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39094650205761317 [2024-11-19 13:58:26,014 INFO L175 Difference]: Start difference. First operand has 148 places, 85 transitions, 808 flow. Second operand 9 states and 95 transitions. [2024-11-19 13:58:26,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 98 transitions, 1058 flow [2024-11-19 13:58:26,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 98 transitions, 953 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-11-19 13:58:26,018 INFO L231 Difference]: Finished difference. Result has 137 places, 71 transitions, 610 flow [2024-11-19 13:58:26,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=610, PETRI_PLACES=137, PETRI_TRANSITIONS=71} [2024-11-19 13:58:26,019 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2024-11-19 13:58:26,020 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 71 transitions, 610 flow [2024-11-19 13:58:26,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:26,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:26,020 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:26,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 13:58:26,020 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:26,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1910577856, now seen corresponding path program 2 times [2024-11-19 13:58:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:26,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521662457] [2024-11-19 13:58:26,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:26,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:26,041 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:26,041 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:27,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:27,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521662457] [2024-11-19 13:58:27,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521662457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:27,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:27,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 13:58:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889958851] [2024-11-19 13:58:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:27,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:27,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:27,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:27,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:27,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:27,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 71 transitions, 610 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:27,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:27,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:27,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:28,459 INFO L124 PetriNetUnfolderBase]: 28/144 cut-off events. [2024-11-19 13:58:28,459 INFO L125 PetriNetUnfolderBase]: For 463/465 co-relation queries the response was YES. [2024-11-19 13:58:28,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 144 events. 28/144 cut-off events. For 463/465 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 447 event pairs, 13 based on Foata normal form. 5/149 useless extension candidates. Maximal degree in co-relation 593. Up to 63 conditions per place. [2024-11-19 13:58:28,460 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 46 selfloop transitions, 15 changer transitions 9/80 dead transitions. [2024-11-19 13:58:28,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 80 transitions, 778 flow [2024-11-19 13:58:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 13:58:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 13:58:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 127 transitions. [2024-11-19 13:58:28,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.335978835978836 [2024-11-19 13:58:28,461 INFO L175 Difference]: Start difference. First operand has 137 places, 71 transitions, 610 flow. Second operand 14 states and 127 transitions. [2024-11-19 13:58:28,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 80 transitions, 778 flow [2024-11-19 13:58:28,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 80 transitions, 708 flow, removed 6 selfloop flow, removed 14 redundant places. [2024-11-19 13:58:28,464 INFO L231 Difference]: Finished difference. Result has 130 places, 67 transitions, 539 flow [2024-11-19 13:58:28,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=539, PETRI_PLACES=130, PETRI_TRANSITIONS=67} [2024-11-19 13:58:28,464 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2024-11-19 13:58:28,464 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 67 transitions, 539 flow [2024-11-19 13:58:28,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:28,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:28,465 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:28,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 13:58:28,465 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:28,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1458498406, now seen corresponding path program 1 times [2024-11-19 13:58:28,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:28,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865367224] [2024-11-19 13:58:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:29,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:29,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865367224] [2024-11-19 13:58:29,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865367224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:29,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:29,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:29,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884208649] [2024-11-19 13:58:29,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:29,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:58:29,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:29,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:58:29,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:58:29,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-11-19 13:58:29,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 67 transitions, 539 flow. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:29,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:29,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-11-19 13:58:29,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:29,936 INFO L124 PetriNetUnfolderBase]: 26/129 cut-off events. [2024-11-19 13:58:29,936 INFO L125 PetriNetUnfolderBase]: For 286/286 co-relation queries the response was YES. [2024-11-19 13:58:29,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 129 events. 26/129 cut-off events. For 286/286 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 329 event pairs, 8 based on Foata normal form. 2/131 useless extension candidates. Maximal degree in co-relation 513. Up to 46 conditions per place. [2024-11-19 13:58:29,937 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 47 selfloop transitions, 24 changer transitions 0/76 dead transitions. [2024-11-19 13:58:29,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 76 transitions, 713 flow [2024-11-19 13:58:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 13:58:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 13:58:29,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 106 transitions. [2024-11-19 13:58:29,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.301994301994302 [2024-11-19 13:58:29,940 INFO L175 Difference]: Start difference. First operand has 130 places, 67 transitions, 539 flow. Second operand 13 states and 106 transitions. [2024-11-19 13:58:29,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 76 transitions, 713 flow [2024-11-19 13:58:29,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 76 transitions, 665 flow, removed 4 selfloop flow, removed 14 redundant places. [2024-11-19 13:58:29,945 INFO L231 Difference]: Finished difference. Result has 120 places, 71 transitions, 555 flow [2024-11-19 13:58:29,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=555, PETRI_PLACES=120, PETRI_TRANSITIONS=71} [2024-11-19 13:58:29,945 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 91 predicate places. [2024-11-19 13:58:29,946 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 71 transitions, 555 flow [2024-11-19 13:58:29,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:29,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:29,946 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:29,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 13:58:29,946 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:29,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1914522814, now seen corresponding path program 4 times [2024-11-19 13:58:29,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:29,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95842950] [2024-11-19 13:58:29,947 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 13:58:29,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:29,975 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 13:58:29,975 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:31,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:31,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95842950] [2024-11-19 13:58:31,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95842950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:31,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:31,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235964301] [2024-11-19 13:58:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:31,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:58:31,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:31,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:58:31,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:58:31,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-19 13:58:31,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 71 transitions, 555 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:31,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:31,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-19 13:58:31,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:32,454 INFO L124 PetriNetUnfolderBase]: 20/120 cut-off events. [2024-11-19 13:58:32,454 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-19 13:58:32,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 120 events. 20/120 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 8 based on Foata normal form. 3/123 useless extension candidates. Maximal degree in co-relation 424. Up to 43 conditions per place. [2024-11-19 13:58:32,455 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 45 selfloop transitions, 10 changer transitions 13/76 dead transitions. [2024-11-19 13:58:32,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 76 transitions, 699 flow [2024-11-19 13:58:32,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:58:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 13:58:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 124 transitions. [2024-11-19 13:58:32,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4175084175084175 [2024-11-19 13:58:32,456 INFO L175 Difference]: Start difference. First operand has 120 places, 71 transitions, 555 flow. Second operand 11 states and 124 transitions. [2024-11-19 13:58:32,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 76 transitions, 699 flow [2024-11-19 13:58:32,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 76 transitions, 652 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-19 13:58:32,458 INFO L231 Difference]: Finished difference. Result has 123 places, 62 transitions, 458 flow [2024-11-19 13:58:32,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=458, PETRI_PLACES=123, PETRI_TRANSITIONS=62} [2024-11-19 13:58:32,459 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 94 predicate places. [2024-11-19 13:58:32,459 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 62 transitions, 458 flow [2024-11-19 13:58:32,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:32,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:32,461 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:32,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 13:58:32,461 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:32,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:32,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1732874890, now seen corresponding path program 1 times [2024-11-19 13:58:32,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:32,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063311467] [2024-11-19 13:58:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:32,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:34,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:34,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063311467] [2024-11-19 13:58:34,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063311467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:34,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:34,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267153325] [2024-11-19 13:58:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:34,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:58:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:34,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:58:34,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:58:34,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:34,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 62 transitions, 458 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:34,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:34,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:34,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:35,178 INFO L124 PetriNetUnfolderBase]: 18/103 cut-off events. [2024-11-19 13:58:35,178 INFO L125 PetriNetUnfolderBase]: For 233/233 co-relation queries the response was YES. [2024-11-19 13:58:35,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 103 events. 18/103 cut-off events. For 233/233 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 199 event pairs, 3 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 409. Up to 31 conditions per place. [2024-11-19 13:58:35,179 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 38 selfloop transitions, 8 changer transitions 14/65 dead transitions. [2024-11-19 13:58:35,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 65 transitions, 576 flow [2024-11-19 13:58:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:58:35,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:58:35,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 90 transitions. [2024-11-19 13:58:35,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-11-19 13:58:35,180 INFO L175 Difference]: Start difference. First operand has 123 places, 62 transitions, 458 flow. Second operand 10 states and 90 transitions. [2024-11-19 13:58:35,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 65 transitions, 576 flow [2024-11-19 13:58:35,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 65 transitions, 524 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-11-19 13:58:35,182 INFO L231 Difference]: Finished difference. Result has 105 places, 51 transitions, 364 flow [2024-11-19 13:58:35,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=364, PETRI_PLACES=105, PETRI_TRANSITIONS=51} [2024-11-19 13:58:35,182 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 76 predicate places. [2024-11-19 13:58:35,182 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 51 transitions, 364 flow [2024-11-19 13:58:35,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:35,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:35,183 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:35,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 13:58:35,183 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:35,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2034754461, now seen corresponding path program 1 times [2024-11-19 13:58:35,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:35,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370218583] [2024-11-19 13:58:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:35,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:37,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:37,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370218583] [2024-11-19 13:58:37,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370218583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:37,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:37,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 13:58:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141610550] [2024-11-19 13:58:37,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:37,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:58:37,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:58:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:58:37,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:37,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 51 transitions, 364 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:37,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:37,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:37,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:38,166 INFO L124 PetriNetUnfolderBase]: 9/72 cut-off events. [2024-11-19 13:58:38,170 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-11-19 13:58:38,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 72 events. 9/72 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 1 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 282. Up to 26 conditions per place. [2024-11-19 13:58:38,171 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 37 selfloop transitions, 3 changer transitions 13/56 dead transitions. [2024-11-19 13:58:38,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 56 transitions, 489 flow [2024-11-19 13:58:38,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:58:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 13:58:38,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 80 transitions. [2024-11-19 13:58:38,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3292181069958848 [2024-11-19 13:58:38,173 INFO L175 Difference]: Start difference. First operand has 105 places, 51 transitions, 364 flow. Second operand 9 states and 80 transitions. [2024-11-19 13:58:38,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 56 transitions, 489 flow [2024-11-19 13:58:38,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 56 transitions, 445 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-19 13:58:38,174 INFO L231 Difference]: Finished difference. Result has 87 places, 43 transitions, 298 flow [2024-11-19 13:58:38,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=298, PETRI_PLACES=87, PETRI_TRANSITIONS=43} [2024-11-19 13:58:38,175 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 58 predicate places. [2024-11-19 13:58:38,175 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 43 transitions, 298 flow [2024-11-19 13:58:38,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:38,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:38,175 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:38,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 13:58:38,175 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:38,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:38,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2031189311, now seen corresponding path program 2 times [2024-11-19 13:58:38,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:38,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045318099] [2024-11-19 13:58:38,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:38,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:38,210 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:38,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:39,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:39,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045318099] [2024-11-19 13:58:39,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045318099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:39,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:39,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:39,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345336230] [2024-11-19 13:58:39,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:39,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 13:58:39,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:39,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 13:58:39,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:58:39,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-19 13:58:39,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 43 transitions, 298 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:39,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:39,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-19 13:58:39,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:40,241 INFO L124 PetriNetUnfolderBase]: 5/54 cut-off events. [2024-11-19 13:58:40,241 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-19 13:58:40,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 54 events. 5/54 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 2/56 useless extension candidates. Maximal degree in co-relation 209. Up to 22 conditions per place. [2024-11-19 13:58:40,242 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2024-11-19 13:58:40,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 43 transitions, 376 flow [2024-11-19 13:58:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 13:58:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 13:58:40,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 88 transitions. [2024-11-19 13:58:40,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2962962962962963 [2024-11-19 13:58:40,243 INFO L175 Difference]: Start difference. First operand has 87 places, 43 transitions, 298 flow. Second operand 11 states and 88 transitions. [2024-11-19 13:58:40,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 43 transitions, 376 flow [2024-11-19 13:58:40,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 43 transitions, 352 flow, removed 4 selfloop flow, removed 10 redundant places. [2024-11-19 13:58:40,245 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-11-19 13:58:40,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-11-19 13:58:40,245 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 47 predicate places. [2024-11-19 13:58:40,246 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-11-19 13:58:40,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:40,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-19 13:58:40,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-19 13:58:40,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-19 13:58:40,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-19 13:58:40,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-19 13:58:40,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-19 13:58:40,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-19 13:58:40,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-19 13:58:40,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-19 13:58:40,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 13:58:40,249 INFO L407 BasicCegarLoop]: Path program histogram: [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:40,253 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 13:58:40,253 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 13:58:40,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:58:40 BasicIcfg [2024-11-19 13:58:40,256 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 13:58:40,256 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 13:58:40,257 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 13:58:40,257 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 13:58:40,257 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:57:38" (3/4) ... [2024-11-19 13:58:40,258 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 13:58:40,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-19 13:58:40,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-19 13:58:40,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-19 13:58:40,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 13:58:40,336 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 13:58:40,336 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 13:58:40,336 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 13:58:40,337 INFO L158 Benchmark]: Toolchain (without parser) took 62805.31ms. Allocated memory was 153.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 97.4MB in the beginning and 781.9MB in the end (delta: -684.5MB). Peak memory consumption was 507.7MB. Max. memory is 16.1GB. [2024-11-19 13:58:40,337 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 153.1MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 13:58:40,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.40ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 64.0MB in the end (delta: 32.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-19 13:58:40,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.46ms. Allocated memory is still 153.1MB. Free memory was 64.0MB in the beginning and 61.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 13:58:40,338 INFO L158 Benchmark]: Boogie Preprocessor took 70.90ms. Allocated memory is still 153.1MB. Free memory was 61.1MB in the beginning and 58.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 13:58:40,338 INFO L158 Benchmark]: RCFGBuilder took 702.59ms. Allocated memory was 153.1MB in the beginning and 211.8MB in the end (delta: 58.7MB). Free memory was 58.4MB in the beginning and 171.1MB in the end (delta: -112.6MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2024-11-19 13:58:40,338 INFO L158 Benchmark]: TraceAbstraction took 61308.06ms. Allocated memory was 211.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 170.0MB in the beginning and 787.1MB in the end (delta: -617.1MB). Peak memory consumption was 513.3MB. Max. memory is 16.1GB. [2024-11-19 13:58:40,339 INFO L158 Benchmark]: Witness Printer took 80.02ms. Allocated memory is still 1.3GB. Free memory was 787.1MB in the beginning and 781.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 13:58:40,340 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 153.1MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 573.40ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 64.0MB in the end (delta: 32.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.46ms. Allocated memory is still 153.1MB. Free memory was 64.0MB in the beginning and 61.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.90ms. Allocated memory is still 153.1MB. Free memory was 61.1MB in the beginning and 58.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 702.59ms. Allocated memory was 153.1MB in the beginning and 211.8MB in the end (delta: 58.7MB). Free memory was 58.4MB in the beginning and 171.1MB in the end (delta: -112.6MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * TraceAbstraction took 61308.06ms. Allocated memory was 211.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 170.0MB in the beginning and 787.1MB in the end (delta: -617.1MB). Peak memory consumption was 513.3MB. Max. memory is 16.1GB. * Witness Printer took 80.02ms. Allocated memory is still 1.3GB. Free memory was 787.1MB in the beginning and 781.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 38 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 61.2s, OverallIterations: 26, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1311 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1179 mSDsluCounter, 1390 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1278 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4174 IncrementalHoareTripleChecker+Invalid, 4295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 112 mSDtfsCounter, 4174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 469 GetRequests, 91 SyntacticMatches, 11 SemanticMatches, 367 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1073 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred in iteration=15, InterpolantAutomatonStates: 303, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 42.6s InterpolantComputationTime, 954 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 980 ConstructedInterpolants, 0 QuantifiedInterpolants, 75077 SizeOfPredicates, 13 NumberOfNonLiveVariables, 815 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 33 InterpolantComputations, 23 PerfectInterpolantSequences, 2697/2948 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 13:58:40,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE