./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-memory-alloca/ex3a-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:09:50,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:09:50,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-13 13:09:50,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:09:50,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:09:50,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:09:50,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:09:50,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:09:50,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:09:50,780 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:09:50,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:09:50,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:09:50,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:09:50,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:09:50,783 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:09:50,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:09:50,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:09:50,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:09:50,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:09:50,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:09:50,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:09:50,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:09:50,787 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:09:50,787 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:09:50,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:09:50,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:09:50,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:09:50,788 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:09:50,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:09:50,789 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:09:50,789 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:09:50,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:09:50,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:09:50,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:09:50,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:09:50,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:09:50,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:09:50,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:09:50,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:09:50,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:09:50,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:09:50,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af [2024-10-13 13:09:51,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:09:51,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:09:51,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:09:51,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:09:51,075 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:09:51,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2024-10-13 13:09:52,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:09:52,795 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:09:52,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2024-10-13 13:09:52,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8acabd13/caf12b95823d4160939055d93deab591/FLAG63d81808d [2024-10-13 13:09:52,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8acabd13/caf12b95823d4160939055d93deab591 [2024-10-13 13:09:52,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:09:52,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:09:52,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:09:52,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:09:52,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:09:52,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:52" (1/1) ... [2024-10-13 13:09:52,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70092695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:52, skipping insertion in model container [2024-10-13 13:09:52,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:52" (1/1) ... [2024-10-13 13:09:52,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:09:53,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:09:53,195 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:09:53,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:09:53,260 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:09:53,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53 WrapperNode [2024-10-13 13:09:53,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:09:53,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:09:53,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:09:53,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:09:53,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,306 INFO L138 Inliner]: procedures = 111, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2024-10-13 13:09:53,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:09:53,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:09:53,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:09:53,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:09:53,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,330 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [4, 6]. 60 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 4 writes are split as follows [2, 2]. [2024-10-13 13:09:53,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:09:53,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:09:53,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:09:53,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:09:53,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (1/1) ... [2024-10-13 13:09:53,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:09:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:53,388 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 13:09:53,391 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 13:09:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 13:09:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 13:09:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 13:09:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 13:09:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 13:09:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 13:09:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:09:53,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:09:53,574 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:09:53,576 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:09:53,774 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-10-13 13:09:53,778 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:09:53,819 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:09:53,823 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 13:09:53,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:53 BoogieIcfgContainer [2024-10-13 13:09:53,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:09:53,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:09:53,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:09:53,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:09:53,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:09:52" (1/3) ... [2024-10-13 13:09:53,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6a2540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:53, skipping insertion in model container [2024-10-13 13:09:53,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:53" (2/3) ... [2024-10-13 13:09:53,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6a2540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:53, skipping insertion in model container [2024-10-13 13:09:53,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:53" (3/3) ... [2024-10-13 13:09:53,833 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3a-alloca.i [2024-10-13 13:09:53,849 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:09:53,850 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 13:09:53,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:09:53,927 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;@3484a3a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:09:53,928 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-13 13:09:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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 13:09:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-13 13:09:53,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:53,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 13:09:53,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:53,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:53,946 INFO L85 PathProgramCache]: Analyzing trace with hash 63018152, now seen corresponding path program 1 times [2024-10-13 13:09:53,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:53,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135190274] [2024-10-13 13:09:53,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:53,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:09:54,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452113159] [2024-10-13 13:09:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:54,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:54,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:54,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:54,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:09:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:54,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 13:09:54,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:54,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-10-13 13:09:54,368 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 13:09:54,370 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:09:54,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:54,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135190274] [2024-10-13 13:09:54,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:09:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452113159] [2024-10-13 13:09:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452113159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:54,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:54,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:09:54,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380589435] [2024-10-13 13:09:54,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:54,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:09:54,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:54,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:09:54,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:09:54,413 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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 13:09:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:54,480 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2024-10-13 13:09:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:09:54,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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) Word has length 5 [2024-10-13 13:09:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:54,491 INFO L225 Difference]: With dead ends: 20 [2024-10-13 13:09:54,492 INFO L226 Difference]: Without dead ends: 14 [2024-10-13 13:09:54,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:09:54,499 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:54,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:54,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-13 13:09:54,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2024-10-13 13:09:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.5) internal successors, (12), 10 states have internal predecessors, (12), 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 13:09:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-10-13 13:09:54,525 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2024-10-13 13:09:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:54,526 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-13 13:09:54,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 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 13:09:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-10-13 13:09:54,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 13:09:54,527 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:54,527 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 13:09:54,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 13:09:54,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-13 13:09:54,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:54,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1953562764, now seen corresponding path program 1 times [2024-10-13 13:09:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:54,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890830421] [2024-10-13 13:09:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:54,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:09:54,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309024925] [2024-10-13 13:09:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:54,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:54,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:54,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:09:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:54,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 13:09:54,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:54,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-10-13 13:09:54,988 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 13:09:54,988 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:09:54,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:54,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890830421] [2024-10-13 13:09:54,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:09:54,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309024925] [2024-10-13 13:09:54,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309024925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:54,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:54,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:09:54,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142547429] [2024-10-13 13:09:54,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:54,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:09:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:09:54,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:09:54,993 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 13:09:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:55,049 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-10-13 13:09:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:09:55,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) Word has length 6 [2024-10-13 13:09:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:55,050 INFO L225 Difference]: With dead ends: 15 [2024-10-13 13:09:55,050 INFO L226 Difference]: Without dead ends: 14 [2024-10-13 13:09:55,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:09:55,053 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:55,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-13 13:09:55,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-13 13:09:55,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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 13:09:55,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-10-13 13:09:55,061 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 6 [2024-10-13 13:09:55,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:55,062 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-10-13 13:09:55,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 13:09:55,063 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-10-13 13:09:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 13:09:55,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:55,064 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 13:09:55,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:09:55,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-13 13:09:55,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:55,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:55,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1953622346, now seen corresponding path program 1 times [2024-10-13 13:09:55,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:55,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823376262] [2024-10-13 13:09:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:55,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:55,378 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 13:09:55,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:55,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823376262] [2024-10-13 13:09:55,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823376262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:55,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:55,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:09:55,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346529162] [2024-10-13 13:09:55,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:55,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:09:55,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:55,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:09:55,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:09:55,380 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:09:55,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:55,393 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-10-13 13:09:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:09:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2024-10-13 13:09:55,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:55,394 INFO L225 Difference]: With dead ends: 24 [2024-10-13 13:09:55,394 INFO L226 Difference]: Without dead ends: 10 [2024-10-13 13:09:55,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:09:55,395 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:55,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-13 13:09:55,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-13 13:09:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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 13:09:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-10-13 13:09:55,399 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2024-10-13 13:09:55,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:55,399 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-10-13 13:09:55,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:09:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-10-13 13:09:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 13:09:55,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:55,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:55,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 13:09:55,401 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:55,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash 430903594, now seen corresponding path program 1 times [2024-10-13 13:09:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:55,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342128897] [2024-10-13 13:09:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:55,637 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 13:09:55,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342128897] [2024-10-13 13:09:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342128897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:55,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:09:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76857616] [2024-10-13 13:09:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:55,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:09:55,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:09:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:09:55,639 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13:09:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:55,662 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2024-10-13 13:09:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:09:55,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2024-10-13 13:09:55,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:55,664 INFO L225 Difference]: With dead ends: 19 [2024-10-13 13:09:55,664 INFO L226 Difference]: Without dead ends: 17 [2024-10-13 13:09:55,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:09:55,665 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:55,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-13 13:09:55,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-13 13:09:55,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 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 13:09:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-10-13 13:09:55,669 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2024-10-13 13:09:55,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:55,670 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-10-13 13:09:55,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13:09:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-10-13 13:09:55,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-13 13:09:55,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:55,671 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-13 13:09:55,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 13:09:55,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:55,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:55,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1177006325, now seen corresponding path program 1 times [2024-10-13 13:09:55,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:55,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376833348] [2024-10-13 13:09:55,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:55,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:55,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:55,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376833348] [2024-10-13 13:09:55,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376833348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:55,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:55,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:09:55,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398296310] [2024-10-13 13:09:55,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:55,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:09:55,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:55,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:09:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:09:55,907 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 13:09:55,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:55,933 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-10-13 13:09:55,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:09:55,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14 [2024-10-13 13:09:55,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:55,935 INFO L225 Difference]: With dead ends: 17 [2024-10-13 13:09:55,935 INFO L226 Difference]: Without dead ends: 16 [2024-10-13 13:09:55,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:09:55,936 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:55,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-13 13:09:55,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-13 13:09:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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 13:09:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-10-13 13:09:55,943 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2024-10-13 13:09:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:55,943 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-10-13 13:09:55,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 13:09:55,944 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-10-13 13:09:55,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-13 13:09:55,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:55,947 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-13 13:09:55,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 13:09:55,947 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:55,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:55,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2127457763, now seen corresponding path program 1 times [2024-10-13 13:09:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:55,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12712278] [2024-10-13 13:09:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:56,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:56,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12712278] [2024-10-13 13:09:56,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12712278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:56,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597686315] [2024-10-13 13:09:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:56,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:56,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:56,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:56,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:09:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:56,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:09:56,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:56,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 13:09:56,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:56,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:56,311 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:56,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:56,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597686315] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:56,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:56,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-13 13:09:56,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387346533] [2024-10-13 13:09:56,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:56,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:09:56,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:56,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:09:56,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:09:56,376 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:56,448 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2024-10-13 13:09:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:09:56,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-13 13:09:56,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:56,449 INFO L225 Difference]: With dead ends: 38 [2024-10-13 13:09:56,449 INFO L226 Difference]: Without dead ends: 37 [2024-10-13 13:09:56,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:09:56,450 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:56,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 36 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-13 13:09:56,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-13 13:09:56,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 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 13:09:56,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2024-10-13 13:09:56,455 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 15 [2024-10-13 13:09:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:56,456 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2024-10-13 13:09:56,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:56,456 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2024-10-13 13:09:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-13 13:09:56,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:56,457 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1] [2024-10-13 13:09:56,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 13:09:56,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:56,658 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:56,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:56,658 INFO L85 PathProgramCache]: Analyzing trace with hash 947415310, now seen corresponding path program 2 times [2024-10-13 13:09:56,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:56,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81975621] [2024-10-13 13:09:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:56,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:57,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:57,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81975621] [2024-10-13 13:09:57,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81975621] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:57,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132247727] [2024-10-13 13:09:57,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:09:57,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:57,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:57,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:57,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:09:57,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:09:57,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:09:57,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:09:57,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:57,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 13:09:57,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:57,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:57,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:57,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:57,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:57,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:57,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132247727] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:57,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:57,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2024-10-13 13:09:57,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667345379] [2024-10-13 13:09:57,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:57,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-13 13:09:57,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:57,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-13 13:09:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:09:57,691 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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 13:09:57,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:57,878 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2024-10-13 13:09:57,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 13:09:57,879 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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) Word has length 36 [2024-10-13 13:09:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:57,880 INFO L225 Difference]: With dead ends: 80 [2024-10-13 13:09:57,880 INFO L226 Difference]: Without dead ends: 79 [2024-10-13 13:09:57,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=350, Invalid=772, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 13:09:57,883 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:57,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 79 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:09:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-13 13:09:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-13 13:09:57,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.0128205128205128) internal successors, (79), 78 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2024-10-13 13:09:57,896 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 36 [2024-10-13 13:09:57,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:57,896 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2024-10-13 13:09:57,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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 13:09:57,896 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2024-10-13 13:09:57,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-13 13:09:57,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:57,900 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1] [2024-10-13 13:09:57,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:09:58,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:58,101 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:09:58,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:58,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1222474798, now seen corresponding path program 3 times [2024-10-13 13:09:58,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:58,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109801294] [2024-10-13 13:09:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:58,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:59,464 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:59,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:59,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109801294] [2024-10-13 13:09:59,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109801294] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:59,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346215295] [2024-10-13 13:09:59,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:09:59,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:59,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:59,469 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:59,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:10:00,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-13 13:10:00,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:10:00,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 13:10:00,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:10:00,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-10-13 13:10:00,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 18 [2024-10-13 13:10:00,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2024-10-13 13:10:01,112 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 214 proven. 17 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-13 13:10:01,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:10:02,096 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 223 proven. 8 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-10-13 13:10:02,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346215295] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:10:02,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:10:02,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11, 11] total 42 [2024-10-13 13:10:02,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933163657] [2024-10-13 13:10:02,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:10:02,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-13 13:10:02,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:10:02,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-13 13:10:02,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1466, Unknown=0, NotChecked=0, Total=1722 [2024-10-13 13:10:02,100 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 42 states, 42 states have (on average 3.2857142857142856) internal successors, (138), 42 states have internal predecessors, (138), 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 13:10:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:10:03,169 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2024-10-13 13:10:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 13:10:03,170 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.2857142857142856) internal successors, (138), 42 states have internal predecessors, (138), 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) Word has length 78 [2024-10-13 13:10:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:10:03,170 INFO L225 Difference]: With dead ends: 79 [2024-10-13 13:10:03,170 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 13:10:03,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=582, Invalid=2610, Unknown=0, NotChecked=0, Total=3192 [2024-10-13 13:10:03,173 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 26 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:10:03,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 7 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:10:03,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 13:10:03,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 13:10:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 13:10:03,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 13:10:03,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-10-13 13:10:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:10:03,174 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 13:10:03,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.2857142857142856) internal successors, (138), 42 states have internal predecessors, (138), 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 13:10:03,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 13:10:03,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 13:10:03,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-13 13:10:03,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-13 13:10:03,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-13 13:10:03,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-13 13:10:03,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 13:10:03,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:10:03,382 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2024-10-13 13:10:03,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 13:10:03,480 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 13:10:03,493 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-13 13:10:03,494 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-13 13:10:03,496 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-13 13:10:03,496 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-13 13:10:03,496 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] [2024-10-13 13:10:03,497 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-13 13:10:03,497 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-13 13:10:03,497 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] [2024-10-13 13:10:03,497 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-13 13:10:03,497 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-13 13:10:03,498 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-13 13:10:03,498 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] [2024-10-13 13:10:03,498 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-13 13:10:03,498 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-13 13:10:03,498 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] [2024-10-13 13:10:03,498 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-13 13:10:03,499 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-13 13:10:03,499 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-13 13:10:03,499 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] [2024-10-13 13:10:03,499 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-13 13:10:03,499 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-13 13:10:03,499 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-13 13:10:03,499 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] [2024-10-13 13:10:03,500 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-13 13:10:03,500 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-13 13:10:03,500 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] [2024-10-13 13:10:03,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:10:03 BoogieIcfgContainer [2024-10-13 13:10:03,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 13:10:03,503 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 13:10:03,503 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 13:10:03,503 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 13:10:03,504 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:53" (3/4) ... [2024-10-13 13:10:03,505 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 13:10:03,513 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-13 13:10:03,513 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-13 13:10:03,513 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 13:10:03,514 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 13:10:03,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 13:10:03,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 13:10:03,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 13:10:03,601 INFO L158 Benchmark]: Toolchain (without parser) took 10777.24ms. Allocated memory was 148.9MB in the beginning and 247.5MB in the end (delta: 98.6MB). Free memory was 92.9MB in the beginning and 198.4MB in the end (delta: -105.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 13:10:03,601 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 13:10:03,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.59ms. Allocated memory is still 148.9MB. Free memory was 92.6MB in the beginning and 74.4MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-13 13:10:03,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.43ms. Allocated memory is still 148.9MB. Free memory was 74.4MB in the beginning and 72.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 13:10:03,601 INFO L158 Benchmark]: Boogie Preprocessor took 38.33ms. Allocated memory is still 148.9MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 13:10:03,602 INFO L158 Benchmark]: RCFGBuilder took 477.21ms. Allocated memory is still 148.9MB. Free memory was 70.5MB in the beginning and 112.8MB in the end (delta: -42.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-10-13 13:10:03,602 INFO L158 Benchmark]: TraceAbstraction took 9676.58ms. Allocated memory was 148.9MB in the beginning and 247.5MB in the end (delta: 98.6MB). Free memory was 112.1MB in the beginning and 203.6MB in the end (delta: -91.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-10-13 13:10:03,602 INFO L158 Benchmark]: Witness Printer took 97.44ms. Allocated memory is still 247.5MB. Free memory was 203.6MB in the beginning and 198.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 13:10:03,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.59ms. Allocated memory is still 148.9MB. Free memory was 92.6MB in the beginning and 74.4MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.43ms. Allocated memory is still 148.9MB. Free memory was 74.4MB in the beginning and 72.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.33ms. Allocated memory is still 148.9MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.21ms. Allocated memory is still 148.9MB. Free memory was 70.5MB in the beginning and 112.8MB in the end (delta: -42.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9676.58ms. Allocated memory was 148.9MB in the beginning and 247.5MB in the end (delta: 98.6MB). Free memory was 112.1MB in the beginning and 203.6MB in the end (delta: -91.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 97.44ms. Allocated memory is still 247.5MB. Free memory was 203.6MB in the beginning and 198.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~c~0!base,]]] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 8, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 446 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 44 mSDtfsCounter, 446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=7, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 307 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 411 ConstructedInterpolants, 30 QuantifiedInterpolants, 2567 SizeOfPredicates, 15 NumberOfNonLiveVariables, 532 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 751/1392 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 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-13 13:10:03,634 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