./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix038.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d 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/pthread-wmm/mix038.opt.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 8aba011b4454b6464ed30c6424ccbb7bc43e89a3e2bf826373810de7cb8fe97a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:35:32,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:35:32,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:35:32,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:35:32,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:35:32,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:35:32,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:35:32,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:35:32,790 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:35:32,791 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:35:32,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:35:32,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:35:32,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:35:32,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:35:32,797 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:35:32,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:35:32,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:35:32,798 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:35:32,798 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:35:32,798 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:35:32,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:35:32,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:35:32,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:35:32,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:35:32,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:35:32,803 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:35:32,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:35:32,803 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:35:32,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:35:32,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:35:32,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:35:32,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:35:32,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:35:32,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:35:32,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:35:32,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:35:32,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:35:32,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:35:32,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:35:32,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:35:32,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:35:32,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:35:32,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:35:32,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:35:32,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aba011b4454b6464ed30c6424ccbb7bc43e89a3e2bf826373810de7cb8fe97a [2024-10-13 16:35:33,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:35:33,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:35:33,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:35:33,140 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:35:33,141 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:35:33,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix038.opt.i [2024-10-13 16:35:34,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:35:34,886 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:35:34,886 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix038.opt.i [2024-10-13 16:35:34,900 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f7ac5e2/721bc222130848eeb6a1ac6d11a3bdfc/FLAG2d42df7bf [2024-10-13 16:35:35,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f7ac5e2/721bc222130848eeb6a1ac6d11a3bdfc [2024-10-13 16:35:35,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:35:35,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:35:35,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:35:35,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:35:35,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:35:35,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0f4996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35, skipping insertion in model container [2024-10-13 16:35:35,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,281 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:35:35,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:35:35,667 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:35:35,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:35:35,791 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:35:35,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35 WrapperNode [2024-10-13 16:35:35,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:35:35,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:35:35,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:35:35,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:35:35,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,856 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 129 [2024-10-13 16:35:35,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:35:35,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:35:35,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:35:35,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:35:35,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,875 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,901 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 16:35:35,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:35:35,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:35:35,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:35:35,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:35:35,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (1/1) ... [2024-10-13 16:35:35,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:35:35,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:35:35,976 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) [2024-10-13 16:35:35,979 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 [2024-10-13 16:35:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 16:35:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:35:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 16:35:36,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 16:35:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 16:35:36,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 16:35:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 16:35:36,051 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 16:35:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:35:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 16:35:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:35:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:35:36,055 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:35:36,252 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:35:36,254 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:35:36,578 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:35:36,578 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:35:36,797 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:35:36,798 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 16:35:36,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:35:36 BoogieIcfgContainer [2024-10-13 16:35:36,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:35:36,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:35:36,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:35:36,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:35:36,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:35:35" (1/3) ... [2024-10-13 16:35:36,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383da715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:35:36, skipping insertion in model container [2024-10-13 16:35:36,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:35:35" (2/3) ... [2024-10-13 16:35:36,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383da715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:35:36, skipping insertion in model container [2024-10-13 16:35:36,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:35:36" (3/3) ... [2024-10-13 16:35:36,809 INFO L112 eAbstractionObserver]: Analyzing ICFG mix038.opt.i [2024-10-13 16:35:36,825 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:35:36,825 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-13 16:35:36,825 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:35:36,879 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 16:35:36,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2024-10-13 16:35:36,954 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-10-13 16:35:36,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:35:36,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-13 16:35:36,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2024-10-13 16:35:36,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 38 transitions, 85 flow [2024-10-13 16:35:36,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:35:36,976 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;@10332a12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:35:36,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-13 16:35:36,986 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:35:36,986 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-13 16:35:36,986 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:35:36,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:35:36,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:35:36,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-13 16:35:36,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:35:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1352420165, now seen corresponding path program 1 times [2024-10-13 16:35:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:35:37,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039777067] [2024-10-13 16:35:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:35:37,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:35:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:35:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:35:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:35:37,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039777067] [2024-10-13 16:35:37,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039777067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:35:37,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:35:37,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:35:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357106597] [2024-10-13 16:35:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:35:37,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:35:37,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:35:37,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:35:37,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:35:37,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-13 16:35:37,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:37,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:35:37,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-13 16:35:37,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:35:37,921 INFO L124 PetriNetUnfolderBase]: 1712/2566 cut-off events. [2024-10-13 16:35:37,921 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-13 16:35:37,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5158 conditions, 2566 events. 1712/2566 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 15236 event pairs, 644 based on Foata normal form. 0/1935 useless extension candidates. Maximal degree in co-relation 5147. Up to 2471 conditions per place. [2024-10-13 16:35:37,953 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 35 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-10-13 16:35:37,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 52 transitions, 197 flow [2024-10-13 16:35:37,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:35:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:35:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-10-13 16:35:37,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2024-10-13 16:35:37,968 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 93 transitions. [2024-10-13 16:35:37,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 52 transitions, 197 flow [2024-10-13 16:35:37,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 52 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:35:37,975 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 118 flow [2024-10-13 16:35:37,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-10-13 16:35:37,981 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2024-10-13 16:35:37,981 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2024-10-13 16:35:37,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:37,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:35:37,982 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:35:37,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:35:37,982 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-13 16:35:37,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:35:37,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2057593216, now seen corresponding path program 1 times [2024-10-13 16:35:37,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:35:37,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254354679] [2024-10-13 16:35:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:35:37,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:35:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:35:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:35:38,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:35:38,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254354679] [2024-10-13 16:35:38,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254354679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:35:38,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:35:38,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:35:38,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241153033] [2024-10-13 16:35:38,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:35:38,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:35:38,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:35:38,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:35:38,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:35:38,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-13 16:35:38,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:38,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:35:38,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-13 16:35:38,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:35:38,501 INFO L124 PetriNetUnfolderBase]: 1109/1685 cut-off events. [2024-10-13 16:35:38,502 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-10-13 16:35:38,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4010 conditions, 1685 events. 1109/1685 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 9429 event pairs, 355 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 3999. Up to 1589 conditions per place. [2024-10-13 16:35:38,533 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 32 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-10-13 16:35:38,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 204 flow [2024-10-13 16:35:38,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:35:38,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:35:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-10-13 16:35:38,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6280487804878049 [2024-10-13 16:35:38,536 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 103 transitions. [2024-10-13 16:35:38,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 204 flow [2024-10-13 16:35:38,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:35:38,540 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 110 flow [2024-10-13 16:35:38,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2024-10-13 16:35:38,543 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-10-13 16:35:38,543 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 110 flow [2024-10-13 16:35:38,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:38,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:35:38,544 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:35:38,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:35:38,544 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-13 16:35:38,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:35:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2057593217, now seen corresponding path program 1 times [2024-10-13 16:35:38,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:35:38,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184958235] [2024-10-13 16:35:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:35:38,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:35:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:35:38,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:35:38,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:35:38,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184958235] [2024-10-13 16:35:38,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184958235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:35:38,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:35:38,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:35:38,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421109828] [2024-10-13 16:35:38,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:35:38,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:35:38,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:35:38,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:35:38,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:35:38,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-13 16:35:38,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:38,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:35:38,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-13 16:35:38,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:35:38,928 INFO L124 PetriNetUnfolderBase]: 752/1170 cut-off events. [2024-10-13 16:35:38,928 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-10-13 16:35:38,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2725 conditions, 1170 events. 752/1170 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6019 event pairs, 82 based on Foata normal form. 0/1095 useless extension candidates. Maximal degree in co-relation 2713. Up to 741 conditions per place. [2024-10-13 16:35:38,937 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 41 selfloop transitions, 7 changer transitions 3/64 dead transitions. [2024-10-13 16:35:38,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 64 transitions, 276 flow [2024-10-13 16:35:38,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:35:38,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:35:38,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-10-13 16:35:38,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7195121951219512 [2024-10-13 16:35:38,939 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 110 flow. Second operand 4 states and 118 transitions. [2024-10-13 16:35:38,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 64 transitions, 276 flow [2024-10-13 16:35:38,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:35:38,941 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 131 flow [2024-10-13 16:35:38,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2024-10-13 16:35:38,942 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-10-13 16:35:38,943 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 131 flow [2024-10-13 16:35:38,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:38,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:35:38,943 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:35:38,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:35:38,944 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-13 16:35:38,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:35:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1513153313, now seen corresponding path program 1 times [2024-10-13 16:35:38,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:35:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271479038] [2024-10-13 16:35:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:35:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:35:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:35:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:35:39,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:35:39,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271479038] [2024-10-13 16:35:39,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271479038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:35:39,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:35:39,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:35:39,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097192392] [2024-10-13 16:35:39,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:35:39,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:35:39,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:35:39,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:35:39,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:35:39,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-13 16:35:39,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:39,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:35:39,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-13 16:35:39,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:35:39,332 INFO L124 PetriNetUnfolderBase]: 532/850 cut-off events. [2024-10-13 16:35:39,332 INFO L125 PetriNetUnfolderBase]: For 654/654 co-relation queries the response was YES. [2024-10-13 16:35:39,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2285 conditions, 850 events. 532/850 cut-off events. For 654/654 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4415 event pairs, 32 based on Foata normal form. 60/895 useless extension candidates. Maximal degree in co-relation 2272. Up to 420 conditions per place. [2024-10-13 16:35:39,335 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-10-13 16:35:39,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 255 flow [2024-10-13 16:35:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:35:39,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:35:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-10-13 16:35:39,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-10-13 16:35:39,337 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 131 flow. Second operand 5 states and 128 transitions. [2024-10-13 16:35:39,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 255 flow [2024-10-13 16:35:39,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 231 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-13 16:35:39,342 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-10-13 16:35:39,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-10-13 16:35:39,344 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-10-13 16:35:39,344 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-10-13 16:35:39,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:35:39,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-10-13 16:35:39,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-10-13 16:35:39,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-10-13 16:35:39,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-10-13 16:35:39,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-10-13 16:35:39,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-10-13 16:35:39,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-10-13 16:35:39,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-10-13 16:35:39,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-10-13 16:35:39,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-10-13 16:35:39,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-10-13 16:35:39,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-10-13 16:35:39,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-10-13 16:35:39,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-10-13 16:35:39,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-10-13 16:35:39,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:35:39,352 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 16:35:39,359 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 16:35:39,359 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 16:35:39,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:35:39 BasicIcfg [2024-10-13 16:35:39,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 16:35:39,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:35:39,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:35:39,364 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:35:39,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:35:36" (3/4) ... [2024-10-13 16:35:39,367 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 16:35:39,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-13 16:35:39,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-13 16:35:39,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-13 16:35:39,377 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2024-10-13 16:35:39,377 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-13 16:35:39,377 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 16:35:39,378 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 16:35:39,476 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:35:39,476 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 16:35:39,477 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:35:39,477 INFO L158 Benchmark]: Toolchain (without parser) took 4263.06ms. Allocated memory was 176.2MB in the beginning and 257.9MB in the end (delta: 81.8MB). Free memory was 143.2MB in the beginning and 115.8MB in the end (delta: 27.4MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. [2024-10-13 16:35:39,477 INFO L158 Benchmark]: CDTParser took 1.69ms. Allocated memory is still 176.2MB. Free memory was 144.0MB in the beginning and 143.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:35:39,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.55ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 123.8MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 16:35:39,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.99ms. Allocated memory is still 176.2MB. Free memory was 123.3MB in the beginning and 120.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 16:35:39,478 INFO L158 Benchmark]: Boogie Preprocessor took 69.93ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 117.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:35:39,478 INFO L158 Benchmark]: RCFGBuilder took 867.94ms. Allocated memory is still 176.2MB. Free memory was 117.5MB in the beginning and 100.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-13 16:35:39,479 INFO L158 Benchmark]: TraceAbstraction took 2563.44ms. Allocated memory was 176.2MB in the beginning and 257.9MB in the end (delta: 81.8MB). Free memory was 99.8MB in the beginning and 121.0MB in the end (delta: -21.2MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2024-10-13 16:35:39,479 INFO L158 Benchmark]: Witness Printer took 112.63ms. Allocated memory is still 257.9MB. Free memory was 121.0MB in the beginning and 115.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 16:35:39,480 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.69ms. Allocated memory is still 176.2MB. Free memory was 144.0MB in the beginning and 143.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.55ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 123.8MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.99ms. Allocated memory is still 176.2MB. Free memory was 123.3MB in the beginning and 120.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.93ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 117.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 867.94ms. Allocated memory is still 176.2MB. Free memory was 117.5MB in the beginning and 100.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2563.44ms. Allocated memory was 176.2MB in the beginning and 257.9MB in the end (delta: 81.8MB). Free memory was 99.8MB in the beginning and 121.0MB in the end (delta: -21.2MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 112.63ms. Allocated memory is still 257.9MB. Free memory was 121.0MB in the beginning and 115.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: 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 7 procedures, 74 locations, 15 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 16:35:39,511 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