./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/a.01-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 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/a.01-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 c994ac84f704310f86b6de2d86d8b7f67d4998f02f9723cbf53fa381c3e606ea --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 18:15:04,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 18:15:05,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-20 18:15:05,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 18:15:05,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 18:15:05,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 18:15:05,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 18:15:05,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 18:15:05,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 18:15:05,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 18:15:05,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 18:15:05,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 18:15:05,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 18:15:05,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 18:15:05,087 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 18:15:05,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 18:15:05,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 18:15:05,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 18:15:05,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 18:15:05,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 18:15:05,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 18:15:05,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 18:15:05,092 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 18:15:05,092 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 18:15:05,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 18:15:05,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 18:15:05,093 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 18:15:05,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 18:15:05,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 18:15:05,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 18:15:05,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 18:15:05,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:15:05,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 18:15:05,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 18:15:05,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 18:15:05,094 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 18:15:05,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 18:15:05,095 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 18:15:05,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 18:15:05,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 18:15:05,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 18:15:05,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c994ac84f704310f86b6de2d86d8b7f67d4998f02f9723cbf53fa381c3e606ea [2024-11-20 18:15:05,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 18:15:05,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 18:15:05,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 18:15:05,388 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 18:15:05,388 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 18:15:05,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/a.01-alloca.i [2024-11-20 18:15:06,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 18:15:07,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 18:15:07,035 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/a.01-alloca.i [2024-11-20 18:15:07,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1f333f4/87de5373f2854f17bb9eb464175c3b03/FLAGb64d8cfd7 [2024-11-20 18:15:07,072 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1f333f4/87de5373f2854f17bb9eb464175c3b03 [2024-11-20 18:15:07,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 18:15:07,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 18:15:07,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 18:15:07,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 18:15:07,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 18:15:07,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123eb70c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07, skipping insertion in model container [2024-11-20 18:15:07,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 18:15:07,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:15:07,424 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 18:15:07,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:15:07,499 INFO L204 MainTranslator]: Completed translation [2024-11-20 18:15:07,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07 WrapperNode [2024-11-20 18:15:07,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 18:15:07,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 18:15:07,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 18:15:07,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 18:15:07,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,540 INFO L138 Inliner]: procedures = 111, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-20 18:15:07,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 18:15:07,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 18:15:07,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 18:15:07,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 18:15:07,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,555 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,568 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 6 writes are split as follows [1, 3, 2]. [2024-11-20 18:15:07,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 18:15:07,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 18:15:07,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 18:15:07,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 18:15:07,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (1/1) ... [2024-11-20 18:15:07,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:15:07,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:15:07,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 18:15:07,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 18:15:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 18:15:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 18:15:07,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 18:15:07,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 18:15:07,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 18:15:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 18:15:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 18:15:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 18:15:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 18:15:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 18:15:07,886 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 18:15:07,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 18:15:08,033 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-20 18:15:08,033 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 18:15:08,042 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 18:15:08,043 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 18:15:08,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:08 BoogieIcfgContainer [2024-11-20 18:15:08,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 18:15:08,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 18:15:08,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 18:15:08,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 18:15:08,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:15:07" (1/3) ... [2024-11-20 18:15:08,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec8e30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:15:08, skipping insertion in model container [2024-11-20 18:15:08,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:07" (2/3) ... [2024-11-20 18:15:08,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec8e30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:15:08, skipping insertion in model container [2024-11-20 18:15:08,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:08" (3/3) ... [2024-11-20 18:15:08,051 INFO L112 eAbstractionObserver]: Analyzing ICFG a.01-alloca.i [2024-11-20 18:15:08,066 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 18:15:08,067 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 18:15:08,110 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 18:15:08,115 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;@6f6b3520, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 18:15:08,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-20 18:15:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 18:15:08,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:15:08,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:08,127 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)] === [2024-11-20 18:15:08,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:15:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907818, now seen corresponding path program 1 times [2024-11-20 18:15:08,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:15:08,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518474780] [2024-11-20 18:15:08,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:08,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:15:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:08,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:15:08,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:15:08,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518474780] [2024-11-20 18:15:08,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518474780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:15:08,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:15:08,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 18:15:08,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733462917] [2024-11-20 18:15:08,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:15:08,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 18:15:08,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:15:08,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 18:15:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:15:08,564 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 1.75) internal successors, (7), 5 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) [2024-11-20 18:15:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:15:08,661 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2024-11-20 18:15:08,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:15:08,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 [2024-11-20 18:15:08,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:15:08,671 INFO L225 Difference]: With dead ends: 52 [2024-11-20 18:15:08,671 INFO L226 Difference]: Without dead ends: 27 [2024-11-20 18:15:08,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:15:08,679 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:15:08,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 57 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:15:08,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-20 18:15:08,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2024-11-20 18:15:08,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:08,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-20 18:15:08,709 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 7 [2024-11-20 18:15:08,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:15:08,710 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-20 18:15:08,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2024-11-20 18:15:08,710 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-20 18:15:08,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 18:15:08,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:15:08,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:08,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 18:15:08,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-20 18:15:08,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:15:08,712 INFO L85 PathProgramCache]: Analyzing trace with hash 179565836, now seen corresponding path program 1 times [2024-11-20 18:15:08,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:15:08,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019286129] [2024-11-20 18:15:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:08,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:15:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:15:08,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:15:08,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019286129] [2024-11-20 18:15:08,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019286129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:15:08,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:15:08,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 18:15:08,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667362086] [2024-11-20 18:15:08,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:15:08,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 18:15:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:15:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 18:15:08,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:15:08,935 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:15:08,993 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2024-11-20 18:15:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:15:08,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2024-11-20 18:15:08,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:15:08,995 INFO L225 Difference]: With dead ends: 36 [2024-11-20 18:15:08,995 INFO L226 Difference]: Without dead ends: 20 [2024-11-20 18:15:08,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:15:08,997 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:15:08,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 38 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:15:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-20 18:15:09,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2024-11-20 18:15:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-11-20 18:15:09,004 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2024-11-20 18:15:09,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:15:09,004 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-11-20 18:15:09,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-11-20 18:15:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 18:15:09,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:15:09,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:09,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 18:15:09,007 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)] === [2024-11-20 18:15:09,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:15:09,007 INFO L85 PathProgramCache]: Analyzing trace with hash 179567566, now seen corresponding path program 1 times [2024-11-20 18:15:09,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:15:09,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321826596] [2024-11-20 18:15:09,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:09,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:15:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:15:09,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:15:09,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321826596] [2024-11-20 18:15:09,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321826596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:15:09,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:15:09,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 18:15:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389808554] [2024-11-20 18:15:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:15:09,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 18:15:09,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:15:09,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 18:15:09,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:15:09,156 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:15:09,201 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2024-11-20 18:15:09,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:15:09,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2024-11-20 18:15:09,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:15:09,204 INFO L225 Difference]: With dead ends: 20 [2024-11-20 18:15:09,206 INFO L226 Difference]: Without dead ends: 19 [2024-11-20 18:15:09,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:15:09,222 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:15:09,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:15:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-20 18:15:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-20 18:15:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-20 18:15:09,227 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 8 [2024-11-20 18:15:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:15:09,227 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-20 18:15:09,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-20 18:15:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 18:15:09,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:15:09,228 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:09,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 18:15:09,228 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-20 18:15:09,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:15:09,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2031845277, now seen corresponding path program 1 times [2024-11-20 18:15:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:15:09,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478228721] [2024-11-20 18:15:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:09,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:15:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 18:15:09,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:15:09,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478228721] [2024-11-20 18:15:09,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478228721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:15:09,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:15:09,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 18:15:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912792960] [2024-11-20 18:15:09,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:15:09,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 18:15:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:15:09,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 18:15:09,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:15:09,410 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:15:09,452 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-20 18:15:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:15:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2024-11-20 18:15:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:15:09,454 INFO L225 Difference]: With dead ends: 19 [2024-11-20 18:15:09,454 INFO L226 Difference]: Without dead ends: 18 [2024-11-20 18:15:09,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:15:09,456 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:15:09,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 22 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:15:09,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-20 18:15:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-20 18:15:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-11-20 18:15:09,466 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2024-11-20 18:15:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:15:09,467 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-11-20 18:15:09,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-11-20 18:15:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-20 18:15:09,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:15:09,468 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:09,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 18:15:09,469 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)] === [2024-11-20 18:15:09,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:15:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1437304179, now seen corresponding path program 1 times [2024-11-20 18:15:09,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:15:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408556305] [2024-11-20 18:15:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:15:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 18:15:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:15:09,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408556305] [2024-11-20 18:15:09,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408556305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:15:09,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:15:09,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 18:15:09,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9974284] [2024-11-20 18:15:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:15:09,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 18:15:09,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:15:09,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 18:15:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:15:09,603 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:15:09,642 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-20 18:15:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:15:09,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 12 [2024-11-20 18:15:09,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:15:09,643 INFO L225 Difference]: With dead ends: 18 [2024-11-20 18:15:09,643 INFO L226 Difference]: Without dead ends: 17 [2024-11-20 18:15:09,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:15:09,644 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:15:09,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 22 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:15:09,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-20 18:15:09,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-20 18:15:09,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-11-20 18:15:09,648 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2024-11-20 18:15:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:15:09,648 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-20 18:15:09,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 18:15:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-11-20 18:15:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-20 18:15:09,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:15:09,649 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:09,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 18:15:09,649 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-20 18:15:09,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:15:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1437305909, now seen corresponding path program 1 times [2024-11-20 18:15:09,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:15:09,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903476505] [2024-11-20 18:15:09,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:09,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:15:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 18:15:09,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:15:09,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903476505] [2024-11-20 18:15:09,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903476505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:15:09,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485507847] [2024-11-20 18:15:09,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:09,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:15:09,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:15:09,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:15:09,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 18:15:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:09,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 18:15:09,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:15:09,904 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 [2024-11-20 18:15:09,930 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 [2024-11-20 18:15:09,958 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 [2024-11-20 18:15:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 18:15:09,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:15:10,029 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 21 treesize of output 13 [2024-11-20 18:15:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 18:15:10,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485507847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:15:10,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 18:15:10,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-20 18:15:10,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115561831] [2024-11-20 18:15:10,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 18:15:10,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 18:15:10,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:15:10,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 18:15:10,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:15:10,092 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 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) [2024-11-20 18:15:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:15:10,168 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-11-20 18:15:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 18:15:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 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) Word has length 12 [2024-11-20 18:15:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:15:10,170 INFO L225 Difference]: With dead ends: 17 [2024-11-20 18:15:10,170 INFO L226 Difference]: Without dead ends: 16 [2024-11-20 18:15:10,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-20 18:15:10,171 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:15:10,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:15:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-20 18:15:10,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2024-11-20 18:15:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) 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) [2024-11-20 18:15:10,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-20 18:15:10,178 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2024-11-20 18:15:10,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:15:10,178 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-20 18:15:10,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 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) [2024-11-20 18:15:10,179 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-20 18:15:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-20 18:15:10,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:15:10,179 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:10,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 18:15:10,383 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,SelfDestructingSolverStorable5 [2024-11-20 18:15:10,384 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)] === [2024-11-20 18:15:10,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:15:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1606756653, now seen corresponding path program 1 times [2024-11-20 18:15:10,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:15:10,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467738372] [2024-11-20 18:15:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:15:10,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:15:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:15:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 18:15:10,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:15:10,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467738372] [2024-11-20 18:15:10,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467738372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:15:10,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:15:10,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:15:10,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929135708] [2024-11-20 18:15:10,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:15:10,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:15:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:15:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:15:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:15:10,471 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-20 18:15:10,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:15:10,488 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-11-20 18:15:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:15:10,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) Word has length 13 [2024-11-20 18:15:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:15:10,489 INFO L225 Difference]: With dead ends: 14 [2024-11-20 18:15:10,489 INFO L226 Difference]: Without dead ends: 0 [2024-11-20 18:15:10,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:15:10,490 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:15:10,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:15:10,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-20 18:15:10,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-20 18:15:10,491 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) [2024-11-20 18:15:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-20 18:15:10,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-20 18:15:10,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:15:10,491 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 18:15:10,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-20 18:15:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-20 18:15:10,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-20 18:15:10,494 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-20 18:15:10,494 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-20 18:15:10,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-20 18:15:10,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-20 18:15:10,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 18:15:10,498 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:15:10,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-20 18:15:10,534 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 18:15:10,542 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-11-20 18:15:10,544 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-11-20 18:15:10,545 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~x_ref~0!base,]]] [2024-11-20 18:15:10,547 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-20 18:15:10,547 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-20 18:15:10,547 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~y_ref~0!base,]]] [2024-11-20 18:15:10,548 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-11-20 18:15:10,548 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-11-20 18:15:10,548 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~x_ref~0!base,]]] [2024-11-20 18:15:10,549 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-11-20 18:15:10,549 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-11-20 18:15:10,549 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~x_ref~0!base,]]] [2024-11-20 18:15:10,549 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-11-20 18:15:10,549 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-11-20 18:15:10,549 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~y_ref~0!base,]]] [2024-11-20 18:15:10,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:15:10 BoogieIcfgContainer [2024-11-20 18:15:10,550 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 18:15:10,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 18:15:10,551 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 18:15:10,552 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 18:15:10,552 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:08" (3/4) ... [2024-11-20 18:15:10,554 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 18:15:10,562 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-20 18:15:10,563 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 18:15:10,563 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 18:15:10,563 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 18:15:10,644 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 18:15:10,644 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 18:15:10,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 18:15:10,645 INFO L158 Benchmark]: Toolchain (without parser) took 3567.48ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 116.4MB in the beginning and 114.6MB in the end (delta: 1.8MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2024-11-20 18:15:10,645 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 18:15:10,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.88ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 98.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 18:15:10,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.34ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 18:15:10,647 INFO L158 Benchmark]: Boogie Preprocessor took 37.93ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 18:15:10,647 INFO L158 Benchmark]: RCFGBuilder took 463.08ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 116.4MB in the end (delta: -22.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 18:15:10,647 INFO L158 Benchmark]: TraceAbstraction took 2505.29ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 115.4MB in the beginning and 118.8MB in the end (delta: -3.5MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-11-20 18:15:10,647 INFO L158 Benchmark]: Witness Printer took 93.81ms. Allocated memory is still 190.8MB. Free memory was 118.8MB in the beginning and 114.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 18:15:10,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.88ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 98.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.34ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.93ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.08ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 116.4MB in the end (delta: -22.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2505.29ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 115.4MB in the beginning and 118.8MB in the end (delta: -3.5MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 93.81ms. Allocated memory is still 190.8MB. Free memory was 118.8MB in the beginning and 114.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~x_ref~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~y_ref~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~x_ref~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~x_ref~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~y_ref~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: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: 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, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 71 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 35, 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, 7 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 9 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 10/19 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: 555]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-20 18:15:10,671 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