./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.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 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 23:52:45,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 23:52:45,840 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 23:52:45,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 23:52:45,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 23:52:45,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 23:52:45,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 23:52:45,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 23:52:45,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 23:52:45,880 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 23:52:45,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 23:52:45,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 23:52:45,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 23:52:45,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 23:52:45,883 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 23:52:45,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 23:52:45,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 23:52:45,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 23:52:45,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 23:52:45,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 23:52:45,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 23:52:45,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 23:52:45,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 23:52:45,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 23:52:45,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 23:52:45,886 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 23:52:45,886 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 23:52:45,886 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 23:52:45,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 23:52:45,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 23:52:45,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 23:52:45,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 23:52:45,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 23:52:45,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 23:52:45,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:52:45,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 23:52:45,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 23:52:45,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 23:52:45,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 23:52:45,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 23:52:45,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 23:52:45,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 23:52:45,891 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 23:52:45,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 23:52:45,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2024-10-14 23:52:46,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 23:52:46,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 23:52:46,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 23:52:46,129 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 23:52:46,129 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 23:52:46,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2024-10-14 23:52:47,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 23:52:47,556 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 23:52:47,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2024-10-14 23:52:47,574 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7eecaf2e/97f62cef2cea48229837695d691c53a0/FLAG81b053bfd [2024-10-14 23:52:47,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7eecaf2e/97f62cef2cea48229837695d691c53a0 [2024-10-14 23:52:47,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 23:52:47,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 23:52:47,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 23:52:47,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 23:52:47,921 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 23:52:47,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:47" (1/1) ... [2024-10-14 23:52:47,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6069c880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47, skipping insertion in model container [2024-10-14 23:52:47,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:47" (1/1) ... [2024-10-14 23:52:47,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 23:52:48,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:52:48,293 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 23:52:48,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:52:48,437 INFO L204 MainTranslator]: Completed translation [2024-10-14 23:52:48,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48 WrapperNode [2024-10-14 23:52:48,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 23:52:48,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 23:52:48,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 23:52:48,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 23:52:48,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,486 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-10-14 23:52:48,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 23:52:48,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 23:52:48,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 23:52:48,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 23:52:48,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,498 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,512 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [5, 5]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [5, 1]. The 2 writes are split as follows [0, 2]. [2024-10-14 23:52:48,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 23:52:48,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 23:52:48,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 23:52:48,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 23:52:48,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (1/1) ... [2024-10-14 23:52:48,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:52:48,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:52:48,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 23:52:48,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 23:52:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 23:52:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 23:52:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 23:52:48,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 23:52:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 23:52:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 23:52:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 23:52:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 23:52:48,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 23:52:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 23:52:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 23:52:48,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 23:52:48,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 23:52:48,591 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 23:52:48,694 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 23:52:48,696 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 23:52:48,788 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 23:52:48,788 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 23:52:48,856 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 23:52:48,856 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 23:52:48,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:48 BoogieIcfgContainer [2024-10-14 23:52:48,857 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 23:52:48,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 23:52:48,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 23:52:48,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 23:52:48,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:47" (1/3) ... [2024-10-14 23:52:48,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784716be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:48, skipping insertion in model container [2024-10-14 23:52:48,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:48" (2/3) ... [2024-10-14 23:52:48,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784716be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:48, skipping insertion in model container [2024-10-14 23:52:48,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:48" (3/3) ... [2024-10-14 23:52:48,865 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2024-10-14 23:52:48,881 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 23:52:48,881 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 23:52:48,882 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 23:52:48,913 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 23:52:48,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2024-10-14 23:52:48,960 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-10-14 23:52:48,961 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 23:52:48,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-14 23:52:48,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2024-10-14 23:52:48,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-10-14 23:52:48,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 23:52:48,985 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;@838b919, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 23:52:48,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-14 23:52:48,990 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 23:52:48,991 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-10-14 23:52:48,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:52:48,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:48,992 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 23:52:48,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:48,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:48,997 INFO L85 PathProgramCache]: Analyzing trace with hash 601700853, now seen corresponding path program 1 times [2024-10-14 23:52:49,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:49,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806625711] [2024-10-14 23:52:49,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:49,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:49,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:49,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806625711] [2024-10-14 23:52:49,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806625711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:49,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:49,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:52:49,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391296767] [2024-10-14 23:52:49,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:49,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:52:49,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:49,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:52:49,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:52:49,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-10-14 23:52:49,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:49,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:49,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-10-14 23:52:49,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:49,428 INFO L124 PetriNetUnfolderBase]: 36/108 cut-off events. [2024-10-14 23:52:49,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:52:49,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 108 events. 36/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 358 event pairs, 15 based on Foata normal form. 7/109 useless extension candidates. Maximal degree in co-relation 192. Up to 60 conditions per place. [2024-10-14 23:52:49,433 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 20 selfloop transitions, 4 changer transitions 6/35 dead transitions. [2024-10-14 23:52:49,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 35 transitions, 133 flow [2024-10-14 23:52:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:52:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:52:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2024-10-14 23:52:49,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5565217391304348 [2024-10-14 23:52:49,443 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 64 transitions. [2024-10-14 23:52:49,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 35 transitions, 133 flow [2024-10-14 23:52:49,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 35 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:52:49,446 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 67 flow [2024-10-14 23:52:49,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2024-10-14 23:52:49,451 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2024-10-14 23:52:49,453 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 67 flow [2024-10-14 23:52:49,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:49,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:49,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 23:52:49,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 23:52:49,454 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:49,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash 602219316, now seen corresponding path program 1 times [2024-10-14 23:52:49,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:49,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495416183] [2024-10-14 23:52:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:49,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:49,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:49,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495416183] [2024-10-14 23:52:49,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495416183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:49,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:49,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:52:49,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251974051] [2024-10-14 23:52:49,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:49,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:52:49,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:49,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:52:49,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:52:49,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-10-14 23:52:49,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:49,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:49,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-10-14 23:52:49,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:49,653 INFO L124 PetriNetUnfolderBase]: 24/87 cut-off events. [2024-10-14 23:52:49,655 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-10-14 23:52:49,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 87 events. 24/87 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 285 event pairs, 5 based on Foata normal form. 12/99 useless extension candidates. Maximal degree in co-relation 187. Up to 40 conditions per place. [2024-10-14 23:52:49,657 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 21 selfloop transitions, 6 changer transitions 3/35 dead transitions. [2024-10-14 23:52:49,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 169 flow [2024-10-14 23:52:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:52:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:52:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-10-14 23:52:49,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2024-10-14 23:52:49,658 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 67 flow. Second operand 6 states and 70 transitions. [2024-10-14 23:52:49,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 169 flow [2024-10-14 23:52:49,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 160 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-14 23:52:49,660 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 100 flow [2024-10-14 23:52:49,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2024-10-14 23:52:49,661 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 12 predicate places. [2024-10-14 23:52:49,661 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 100 flow [2024-10-14 23:52:49,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:49,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:49,662 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:49,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 23:52:49,663 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:49,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1369804125, now seen corresponding path program 1 times [2024-10-14 23:52:49,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:49,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542686424] [2024-10-14 23:52:49,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:49,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:49,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:49,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542686424] [2024-10-14 23:52:49,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542686424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:49,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:49,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:52:49,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328580685] [2024-10-14 23:52:49,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:49,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 23:52:49,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:49,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 23:52:49,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 23:52:49,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 23 [2024-10-14 23:52:49,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:49,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:49,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 23 [2024-10-14 23:52:49,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:49,787 INFO L124 PetriNetUnfolderBase]: 12/56 cut-off events. [2024-10-14 23:52:49,787 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-14 23:52:49,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 56 events. 12/56 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 3 based on Foata normal form. 6/62 useless extension candidates. Maximal degree in co-relation 136. Up to 26 conditions per place. [2024-10-14 23:52:49,788 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 17 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2024-10-14 23:52:49,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 156 flow [2024-10-14 23:52:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 23:52:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 23:52:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-10-14 23:52:49,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2024-10-14 23:52:49,791 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 100 flow. Second operand 3 states and 42 transitions. [2024-10-14 23:52:49,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 156 flow [2024-10-14 23:52:49,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 148 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-14 23:52:49,792 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 100 flow [2024-10-14 23:52:49,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2024-10-14 23:52:49,793 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2024-10-14 23:52:49,793 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 100 flow [2024-10-14 23:52:49,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:49,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:49,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:49,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 23:52:49,794 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:49,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1700032797, now seen corresponding path program 1 times [2024-10-14 23:52:49,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:49,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926665734] [2024-10-14 23:52:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:49,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:49,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:49,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:49,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926665734] [2024-10-14 23:52:49,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926665734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:49,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:49,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:49,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922446216] [2024-10-14 23:52:49,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:49,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:49,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:49,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:49,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:49,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:49,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 100 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:49,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:49,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:49,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:50,109 INFO L124 PetriNetUnfolderBase]: 13/65 cut-off events. [2024-10-14 23:52:50,109 INFO L125 PetriNetUnfolderBase]: For 39/41 co-relation queries the response was YES. [2024-10-14 23:52:50,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 65 events. 13/65 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 183 event pairs, 4 based on Foata normal form. 3/68 useless extension candidates. Maximal degree in co-relation 167. Up to 31 conditions per place. [2024-10-14 23:52:50,110 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 23 selfloop transitions, 9 changer transitions 0/35 dead transitions. [2024-10-14 23:52:50,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 208 flow [2024-10-14 23:52:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:52:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:52:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 65 transitions. [2024-10-14 23:52:50,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3532608695652174 [2024-10-14 23:52:50,112 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 100 flow. Second operand 8 states and 65 transitions. [2024-10-14 23:52:50,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 208 flow [2024-10-14 23:52:50,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 35 transitions, 199 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:52:50,114 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 154 flow [2024-10-14 23:52:50,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=28} [2024-10-14 23:52:50,115 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 21 predicate places. [2024-10-14 23:52:50,115 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 154 flow [2024-10-14 23:52:50,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:50,115 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:50,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 23:52:50,116 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:50,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 464089703, now seen corresponding path program 2 times [2024-10-14 23:52:50,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:50,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023138641] [2024-10-14 23:52:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:50,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:50,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:50,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023138641] [2024-10-14 23:52:50,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023138641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:50,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:50,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974213672] [2024-10-14 23:52:50,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:50,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:50,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:50,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:50,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:50,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:50,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 154 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:50,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:50,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:50,355 INFO L124 PetriNetUnfolderBase]: 12/70 cut-off events. [2024-10-14 23:52:50,356 INFO L125 PetriNetUnfolderBase]: For 112/114 co-relation queries the response was YES. [2024-10-14 23:52:50,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 70 events. 12/70 cut-off events. For 112/114 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 226 event pairs, 9 based on Foata normal form. 3/73 useless extension candidates. Maximal degree in co-relation 196. Up to 34 conditions per place. [2024-10-14 23:52:50,357 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 22 selfloop transitions, 11 changer transitions 0/36 dead transitions. [2024-10-14 23:52:50,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 36 transitions, 256 flow [2024-10-14 23:52:50,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:52:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:52:50,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 62 transitions. [2024-10-14 23:52:50,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33695652173913043 [2024-10-14 23:52:50,360 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 154 flow. Second operand 8 states and 62 transitions. [2024-10-14 23:52:50,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 36 transitions, 256 flow [2024-10-14 23:52:50,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 36 transitions, 250 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-14 23:52:50,362 INFO L231 Difference]: Finished difference. Result has 55 places, 31 transitions, 214 flow [2024-10-14 23:52:50,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=214, PETRI_PLACES=55, PETRI_TRANSITIONS=31} [2024-10-14 23:52:50,364 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 31 predicate places. [2024-10-14 23:52:50,364 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 31 transitions, 214 flow [2024-10-14 23:52:50,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:50,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:50,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 23:52:50,365 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:50,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1264227727, now seen corresponding path program 1 times [2024-10-14 23:52:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:50,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725133162] [2024-10-14 23:52:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:50,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:50,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:50,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725133162] [2024-10-14 23:52:50,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725133162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:50,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:50,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:50,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078011491] [2024-10-14 23:52:50,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:50,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:50,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:50,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:50,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:50,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:50,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 31 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:50,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:50,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:50,598 INFO L124 PetriNetUnfolderBase]: 11/67 cut-off events. [2024-10-14 23:52:50,599 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-10-14 23:52:50,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 67 events. 11/67 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 213 event pairs, 2 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 210. Up to 20 conditions per place. [2024-10-14 23:52:50,601 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 25 selfloop transitions, 9 changer transitions 0/37 dead transitions. [2024-10-14 23:52:50,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 37 transitions, 295 flow [2024-10-14 23:52:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 23:52:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 23:52:50,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 57 transitions. [2024-10-14 23:52:50,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35403726708074534 [2024-10-14 23:52:50,603 INFO L175 Difference]: Start difference. First operand has 55 places, 31 transitions, 214 flow. Second operand 7 states and 57 transitions. [2024-10-14 23:52:50,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 37 transitions, 295 flow [2024-10-14 23:52:50,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 37 transitions, 282 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-14 23:52:50,608 INFO L231 Difference]: Finished difference. Result has 58 places, 30 transitions, 215 flow [2024-10-14 23:52:50,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=215, PETRI_PLACES=58, PETRI_TRANSITIONS=30} [2024-10-14 23:52:50,609 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2024-10-14 23:52:50,610 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 30 transitions, 215 flow [2024-10-14 23:52:50,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:50,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:50,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 23:52:50,611 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:50,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -121306969, now seen corresponding path program 3 times [2024-10-14 23:52:50,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:50,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743751831] [2024-10-14 23:52:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:50,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:50,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743751831] [2024-10-14 23:52:50,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743751831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:50,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:50,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:50,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793608877] [2024-10-14 23:52:50,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:50,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:50,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:50,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:50,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:50,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:50,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 30 transitions, 215 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:50,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:50,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:50,842 INFO L124 PetriNetUnfolderBase]: 11/66 cut-off events. [2024-10-14 23:52:50,843 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-10-14 23:52:50,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 66 events. 11/66 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 204 event pairs, 7 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 214. Up to 19 conditions per place. [2024-10-14 23:52:50,844 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 20 selfloop transitions, 11 changer transitions 0/34 dead transitions. [2024-10-14 23:52:50,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 34 transitions, 283 flow [2024-10-14 23:52:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:52:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:52:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 59 transitions. [2024-10-14 23:52:50,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32065217391304346 [2024-10-14 23:52:50,845 INFO L175 Difference]: Start difference. First operand has 58 places, 30 transitions, 215 flow. Second operand 8 states and 59 transitions. [2024-10-14 23:52:50,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 34 transitions, 283 flow [2024-10-14 23:52:50,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 34 transitions, 252 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-10-14 23:52:50,847 INFO L231 Difference]: Finished difference. Result has 56 places, 29 transitions, 198 flow [2024-10-14 23:52:50,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=198, PETRI_PLACES=56, PETRI_TRANSITIONS=29} [2024-10-14 23:52:50,849 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 32 predicate places. [2024-10-14 23:52:50,850 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 29 transitions, 198 flow [2024-10-14 23:52:50,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:50,850 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:50,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 23:52:50,850 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:50,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:50,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1161408977, now seen corresponding path program 1 times [2024-10-14 23:52:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:50,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773595815] [2024-10-14 23:52:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:50,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:50,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:50,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773595815] [2024-10-14 23:52:50,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773595815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:50,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:50,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:50,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317897966] [2024-10-14 23:52:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:50,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:50,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:50,979 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:50,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 29 transitions, 198 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:50,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:50,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:50,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:51,074 INFO L124 PetriNetUnfolderBase]: 11/65 cut-off events. [2024-10-14 23:52:51,074 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-10-14 23:52:51,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 65 events. 11/65 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 202 event pairs, 4 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 200. Up to 32 conditions per place. [2024-10-14 23:52:51,075 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 20 selfloop transitions, 7 changer transitions 6/36 dead transitions. [2024-10-14 23:52:51,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 36 transitions, 276 flow [2024-10-14 23:52:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:52:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:52:51,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 63 transitions. [2024-10-14 23:52:51,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3423913043478261 [2024-10-14 23:52:51,077 INFO L175 Difference]: Start difference. First operand has 56 places, 29 transitions, 198 flow. Second operand 8 states and 63 transitions. [2024-10-14 23:52:51,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 36 transitions, 276 flow [2024-10-14 23:52:51,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 36 transitions, 238 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-10-14 23:52:51,079 INFO L231 Difference]: Finished difference. Result has 55 places, 25 transitions, 141 flow [2024-10-14 23:52:51,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=141, PETRI_PLACES=55, PETRI_TRANSITIONS=25} [2024-10-14 23:52:51,079 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 31 predicate places. [2024-10-14 23:52:51,079 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 25 transitions, 141 flow [2024-10-14 23:52:51,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:51,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:51,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:51,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 23:52:51,082 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:51,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:51,082 INFO L85 PathProgramCache]: Analyzing trace with hash -536353722, now seen corresponding path program 1 times [2024-10-14 23:52:51,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:51,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041986247] [2024-10-14 23:52:51,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:51,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:51,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:51,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041986247] [2024-10-14 23:52:51,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041986247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:51,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:51,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:51,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544710223] [2024-10-14 23:52:51,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:51,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:51,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:51,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:51,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:51,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 25 transitions, 141 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:51,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:51,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:51,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:51,264 INFO L124 PetriNetUnfolderBase]: 10/54 cut-off events. [2024-10-14 23:52:51,264 INFO L125 PetriNetUnfolderBase]: For 101/103 co-relation queries the response was YES. [2024-10-14 23:52:51,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 54 events. 10/54 cut-off events. For 101/103 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 135 event pairs, 2 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 157. Up to 14 conditions per place. [2024-10-14 23:52:51,265 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 10 selfloop transitions, 5 changer transitions 13/31 dead transitions. [2024-10-14 23:52:51,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 31 transitions, 210 flow [2024-10-14 23:52:51,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 23:52:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 23:52:51,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 63 transitions. [2024-10-14 23:52:51,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30434782608695654 [2024-10-14 23:52:51,266 INFO L175 Difference]: Start difference. First operand has 55 places, 25 transitions, 141 flow. Second operand 9 states and 63 transitions. [2024-10-14 23:52:51,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 31 transitions, 210 flow [2024-10-14 23:52:51,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 31 transitions, 183 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-14 23:52:51,267 INFO L231 Difference]: Finished difference. Result has 49 places, 18 transitions, 92 flow [2024-10-14 23:52:51,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=92, PETRI_PLACES=49, PETRI_TRANSITIONS=18} [2024-10-14 23:52:51,268 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 25 predicate places. [2024-10-14 23:52:51,268 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 18 transitions, 92 flow [2024-10-14 23:52:51,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:51,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:51,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:51,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 23:52:51,269 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:51,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:51,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1501879083, now seen corresponding path program 2 times [2024-10-14 23:52:51,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:51,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148236264] [2024-10-14 23:52:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:51,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:51,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:51,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148236264] [2024-10-14 23:52:51,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148236264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:51,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:51,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:51,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004978438] [2024-10-14 23:52:51,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:51,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:51,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:51,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:51,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 18 transitions, 92 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:51,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:51,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:51,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:51,420 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2024-10-14 23:52:51,421 INFO L125 PetriNetUnfolderBase]: For 28/30 co-relation queries the response was YES. [2024-10-14 23:52:51,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 23 events. 1/23 cut-off events. For 28/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 1 based on Foata normal form. 3/26 useless extension candidates. Maximal degree in co-relation 62. Up to 9 conditions per place. [2024-10-14 23:52:51,422 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 8 selfloop transitions, 3 changer transitions 5/19 dead transitions. [2024-10-14 23:52:51,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 19 transitions, 123 flow [2024-10-14 23:52:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 23:52:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 23:52:51,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 45 transitions. [2024-10-14 23:52:51,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2795031055900621 [2024-10-14 23:52:51,424 INFO L175 Difference]: Start difference. First operand has 49 places, 18 transitions, 92 flow. Second operand 7 states and 45 transitions. [2024-10-14 23:52:51,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 19 transitions, 123 flow [2024-10-14 23:52:51,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 19 transitions, 96 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-10-14 23:52:51,424 INFO L231 Difference]: Finished difference. Result has 34 places, 14 transitions, 51 flow [2024-10-14 23:52:51,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=51, PETRI_PLACES=34, PETRI_TRANSITIONS=14} [2024-10-14 23:52:51,425 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 10 predicate places. [2024-10-14 23:52:51,425 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 14 transitions, 51 flow [2024-10-14 23:52:51,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:51,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:52:51,425 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:52:51,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 23:52:51,426 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 23:52:51,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:52:51,426 INFO L85 PathProgramCache]: Analyzing trace with hash 534451435, now seen corresponding path program 3 times [2024-10-14 23:52:51,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:52:51,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309443065] [2024-10-14 23:52:51,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:52:51,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:52:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:52:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:52:51,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:52:51,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309443065] [2024-10-14 23:52:51,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309443065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:52:51,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:52:51,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:52:51,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482319271] [2024-10-14 23:52:51,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:52:51,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 23:52:51,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:52:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 23:52:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 23:52:51,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-10-14 23:52:51,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 14 transitions, 51 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:51,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:52:51,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-10-14 23:52:51,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:52:51,557 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2024-10-14 23:52:51,558 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-14 23:52:51,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 15 events. 1/15 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2024-10-14 23:52:51,558 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2024-10-14 23:52:51,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 14 transitions, 71 flow [2024-10-14 23:52:51,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 23:52:51,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 23:52:51,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2024-10-14 23:52:51,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2484472049689441 [2024-10-14 23:52:51,560 INFO L175 Difference]: Start difference. First operand has 34 places, 14 transitions, 51 flow. Second operand 7 states and 40 transitions. [2024-10-14 23:52:51,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 14 transitions, 71 flow [2024-10-14 23:52:51,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 14 transitions, 57 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-14 23:52:51,560 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-10-14 23:52:51,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-10-14 23:52:51,561 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2024-10-14 23:52:51,561 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-10-14 23:52:51,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:52:51,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-10-14 23:52:51,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-10-14 23:52:51,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-14 23:52:51,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-10-14 23:52:51,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-10-14 23:52:51,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-10-14 23:52:51,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-10-14 23:52:51,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 23:52:51,565 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1] [2024-10-14 23:52:51,569 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 23:52:51,569 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 23:52:51,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:51 BasicIcfg [2024-10-14 23:52:51,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 23:52:51,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 23:52:51,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 23:52:51,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 23:52:51,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:48" (3/4) ... [2024-10-14 23:52:51,575 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 23:52:51,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-14 23:52:51,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-10-14 23:52:51,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-14 23:52:51,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 23:52:51,583 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 23:52:51,649 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 23:52:51,650 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 23:52:51,650 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 23:52:51,650 INFO L158 Benchmark]: Toolchain (without parser) took 3734.46ms. Allocated memory was 163.6MB in the beginning and 226.5MB in the end (delta: 62.9MB). Free memory was 106.1MB in the beginning and 163.8MB in the end (delta: -57.6MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-10-14 23:52:51,650 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 23:52:51,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.80ms. Allocated memory is still 163.6MB. Free memory was 105.7MB in the beginning and 121.0MB in the end (delta: -15.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 23:52:51,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.59ms. Allocated memory is still 163.6MB. Free memory was 121.0MB in the beginning and 118.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:52:51,651 INFO L158 Benchmark]: Boogie Preprocessor took 39.54ms. Allocated memory is still 163.6MB. Free memory was 118.2MB in the beginning and 116.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:52:51,651 INFO L158 Benchmark]: RCFGBuilder took 328.97ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 95.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 23:52:51,652 INFO L158 Benchmark]: TraceAbstraction took 2714.17ms. Allocated memory was 163.6MB in the beginning and 226.5MB in the end (delta: 62.9MB). Free memory was 94.4MB in the beginning and 168.0MB in the end (delta: -73.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 23:52:51,652 INFO L158 Benchmark]: Witness Printer took 76.41ms. Allocated memory is still 226.5MB. Free memory was 168.0MB in the beginning and 163.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 23:52:51,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 117.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.80ms. Allocated memory is still 163.6MB. Free memory was 105.7MB in the beginning and 121.0MB in the end (delta: -15.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.59ms. Allocated memory is still 163.6MB. Free memory was 121.0MB in the beginning and 118.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.54ms. Allocated memory is still 163.6MB. Free memory was 118.2MB in the beginning and 116.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.97ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 95.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2714.17ms. Allocated memory was 163.6MB in the beginning and 226.5MB in the end (delta: 62.9MB). Free memory was 94.4MB in the beginning and 168.0MB in the end (delta: -73.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.41ms. Allocated memory is still 226.5MB. Free memory was 168.0MB in the beginning and 163.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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 - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 35 locations, 7 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: 2.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 242 mSDsluCounter, 319 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 296 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1015 IncrementalHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 23 mSDtfsCounter, 1015 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=6, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 23:52:51,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE