./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-lopstr16/single_elem_safe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-lopstr16/single_elem_safe.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:05:55,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:05:55,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:05:55,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:05:55,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:05:55,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:05:55,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:05:55,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:05:55,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:05:55,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:05:55,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:05:55,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:05:55,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:05:55,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:05:55,727 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:05:55,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:05:55,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:05:55,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:05:55,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:05:55,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:05:55,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:05:55,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:05:55,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:05:55,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:05:55,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:05:55,732 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:05:55,733 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:05:55,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:05:55,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:05:55,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:05:55,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:05:55,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:05:55,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:05:55,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:05:55,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:05:55,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:05:55,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:05:55,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:05:55,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:05:55,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:05:55,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:05:55,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:05:55,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:05:55,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:05:55,738 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 [2024-10-14 20:05:55,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:05:56,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:05:56,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:05:56,006 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:05:56,006 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:05:56,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-lopstr16/single_elem_safe.i [2024-10-14 20:05:57,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:05:57,560 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:05:57,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-lopstr16/single_elem_safe.i [2024-10-14 20:05:57,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b4d6a6a/94fe8458336a453395b9c50fbbe5a802/FLAGfcfca938d [2024-10-14 20:05:57,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b4d6a6a/94fe8458336a453395b9c50fbbe5a802 [2024-10-14 20:05:57,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:05:57,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:05:57,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:05:57,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:05:57,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:05:57,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:05:57" (1/1) ... [2024-10-14 20:05:57,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75eba5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:57, skipping insertion in model container [2024-10-14 20:05:57,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:05:57" (1/1) ... [2024-10-14 20:05:57,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:05:58,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:05:58,178 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:05:58,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:05:58,233 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:05:58,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58 WrapperNode [2024-10-14 20:05:58,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:05:58,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:05:58,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:05:58,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:05:58,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,268 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2024-10-14 20:05:58,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:05:58,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:05:58,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:05:58,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:05:58,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,294 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 4, 6]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-10-14 20:05:58,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:05:58,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:05:58,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:05:58,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:05:58,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (1/1) ... [2024-10-14 20:05:58,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:05:58,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:05:58,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:05:58,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:05:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 20:05:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 20:05:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 20:05:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:05:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:05:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 20:05:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 20:05:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 20:05:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:05:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 20:05:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 20:05:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 20:05:58,517 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:05:58,519 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:05:58,742 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-10-14 20:05:58,742 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:05:58,780 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:05:58,781 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 20:05:58,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:05:58 BoogieIcfgContainer [2024-10-14 20:05:58,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:05:58,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:05:58,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:05:58,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:05:58,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:05:57" (1/3) ... [2024-10-14 20:05:58,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175caca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:05:58, skipping insertion in model container [2024-10-14 20:05:58,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:05:58" (2/3) ... [2024-10-14 20:05:58,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175caca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:05:58, skipping insertion in model container [2024-10-14 20:05:58,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:05:58" (3/3) ... [2024-10-14 20:05:58,792 INFO L112 eAbstractionObserver]: Analyzing ICFG single_elem_safe.i [2024-10-14 20:05:58,814 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:05:58,815 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 20:05:58,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:05:58,881 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;@178e62a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:05:58,882 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 20:05:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.75) internal successors, (35), 24 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:05:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 20:05:58,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:05:58,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 20:05:58,891 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)] === [2024-10-14 20:05:58,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:05:58,897 INFO L85 PathProgramCache]: Analyzing trace with hash -763930337, now seen corresponding path program 1 times [2024-10-14 20:05:58,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:05:58,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845697694] [2024-10-14 20:05:58,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:05:58,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:05:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:05:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:05:59,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:05:59,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845697694] [2024-10-14 20:05:59,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845697694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:05:59,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:05:59,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:05:59,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948074592] [2024-10-14 20:05:59,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:05:59,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:05:59,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:05:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:05:59,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:05:59,187 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.75) internal successors, (35), 24 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2024-10-14 20:05:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:05:59,243 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2024-10-14 20:05:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:05:59,246 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 [2024-10-14 20:05:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:05:59,252 INFO L225 Difference]: With dead ends: 51 [2024-10-14 20:05:59,253 INFO L226 Difference]: Without dead ends: 24 [2024-10-14 20:05:59,256 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 [2024-10-14 20:05:59,259 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:05:59,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:05:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-10-14 20:05:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2024-10-14 20:05:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:05:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2024-10-14 20:05:59,319 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 6 [2024-10-14 20:05:59,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:05:59,320 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2024-10-14 20:05:59,320 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) [2024-10-14 20:05:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-10-14 20:05:59,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 20:05:59,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:05:59,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 20:05:59,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:05:59,323 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:05:59,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:05:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash -763870755, now seen corresponding path program 1 times [2024-10-14 20:05:59,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:05:59,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572785606] [2024-10-14 20:05:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:05:59,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:05:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:05:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:05:59,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:05:59,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572785606] [2024-10-14 20:05:59,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572785606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:05:59,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:05:59,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:05:59,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184987644] [2024-10-14 20:05:59,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:05:59,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:05:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:05:59,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:05:59,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:05:59,454 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 4 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) [2024-10-14 20:05:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:05:59,502 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2024-10-14 20:05:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:05:59,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2024-10-14 20:05:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:05:59,504 INFO L225 Difference]: With dead ends: 49 [2024-10-14 20:05:59,504 INFO L226 Difference]: Without dead ends: 36 [2024-10-14 20:05:59,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:05:59,506 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:05:59,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 55 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:05:59,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-14 20:05:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2024-10-14 20:05:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.5) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:05:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-10-14 20:05:59,515 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 6 [2024-10-14 20:05:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:05:59,515 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-10-14 20:05:59,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2024-10-14 20:05:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-10-14 20:05:59,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 20:05:59,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:05:59,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:05:59,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:05:59,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:05:59,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:05:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1451708781, now seen corresponding path program 1 times [2024-10-14 20:05:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:05:59,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944580838] [2024-10-14 20:05:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:05:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:05:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:05:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:05:59,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:05:59,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944580838] [2024-10-14 20:05:59,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944580838] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:05:59,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996086754] [2024-10-14 20:05:59,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:05:59,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:05:59,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:05:59,692 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) [2024-10-14 20:05:59,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:05:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:05:59,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:05:59,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:05:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:05:59,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:05:59,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996086754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:05:59,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:05:59,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-14 20:05:59,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507814444] [2024-10-14 20:05:59,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:05:59,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:05:59,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:05:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:05:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:05:59,880 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-10-14 20:05:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:05:59,937 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2024-10-14 20:05:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:05:59,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 12 [2024-10-14 20:05:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:05:59,939 INFO L225 Difference]: With dead ends: 36 [2024-10-14 20:05:59,939 INFO L226 Difference]: Without dead ends: 35 [2024-10-14 20:05:59,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:05:59,940 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:05:59,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 70 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:05:59,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-14 20:05:59,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2024-10-14 20:05:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 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) [2024-10-14 20:05:59,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-10-14 20:05:59,945 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 12 [2024-10-14 20:05:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:05:59,945 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-10-14 20:05:59,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-10-14 20:05:59,946 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-10-14 20:05:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:05:59,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:05:59,946 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:05:59,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 20:06:00,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:00,151 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:06:00,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:06:00,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2053299186, now seen corresponding path program 1 times [2024-10-14 20:06:00,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:06:00,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933329630] [2024-10-14 20:06:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:00,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:06:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:06:00,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:06:00,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933329630] [2024-10-14 20:06:00,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933329630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:06:00,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:06:00,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:06:00,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206411433] [2024-10-14 20:06:00,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:06:00,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:06:00,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:06:00,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:06:00,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:06:00,236 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:00,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:06:00,267 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2024-10-14 20:06:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:06:00,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 [2024-10-14 20:06:00,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:06:00,269 INFO L225 Difference]: With dead ends: 30 [2024-10-14 20:06:00,270 INFO L226 Difference]: Without dead ends: 29 [2024-10-14 20:06:00,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:06:00,271 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 39 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 [2024-10-14 20:06:00,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 39 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:06:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-10-14 20:06:00,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2024-10-14 20:06:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2024-10-14 20:06:00,278 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 13 [2024-10-14 20:06:00,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:06:00,278 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-10-14 20:06:00,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:00,278 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-10-14 20:06:00,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:06:00,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:06:00,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:06:00,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:06:00,281 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)] === [2024-10-14 20:06:00,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:06:00,281 INFO L85 PathProgramCache]: Analyzing trace with hash -298472232, now seen corresponding path program 1 times [2024-10-14 20:06:00,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:06:00,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969613024] [2024-10-14 20:06:00,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:00,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:06:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:06:00,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:06:00,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969613024] [2024-10-14 20:06:00,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969613024] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:06:00,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098116428] [2024-10-14 20:06:00,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:00,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:00,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:06:00,390 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) [2024-10-14 20:06:00,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:06:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:00,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:06:00,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:06:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:06:00,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:06:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:06:00,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098116428] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:06:00,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:06:00,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-14 20:06:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787936172] [2024-10-14 20:06:00,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:06:00,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:06:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:06:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:06:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:06:00,559 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:06:00,625 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2024-10-14 20:06:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:06:00,625 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:06:00,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:06:00,627 INFO L225 Difference]: With dead ends: 54 [2024-10-14 20:06:00,627 INFO L226 Difference]: Without dead ends: 43 [2024-10-14 20:06:00,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:06:00,628 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 42 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:06:00,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 99 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:06:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-14 20:06:00,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2024-10-14 20:06:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:00,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2024-10-14 20:06:00,636 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 14 [2024-10-14 20:06:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:06:00,636 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-10-14 20:06:00,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:00,638 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-10-14 20:06:00,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-14 20:06:00,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:06:00,639 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:06:00,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:06:00,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:00,840 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:06:00,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:06:00,841 INFO L85 PathProgramCache]: Analyzing trace with hash 377616836, now seen corresponding path program 2 times [2024-10-14 20:06:00,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:06:00,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353129716] [2024-10-14 20:06:00,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:00,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:06:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-14 20:06:00,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:06:00,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353129716] [2024-10-14 20:06:00,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353129716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:06:00,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:06:00,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:06:00,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741813099] [2024-10-14 20:06:00,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:06:00,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:06:00,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:06:00,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:06:00,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:06:00,935 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2024-10-14 20:06:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:06:00,986 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2024-10-14 20:06:00,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:06:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 26 [2024-10-14 20:06:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:06:00,987 INFO L225 Difference]: With dead ends: 47 [2024-10-14 20:06:00,987 INFO L226 Difference]: Without dead ends: 45 [2024-10-14 20:06:00,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:06:00,988 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:06:00,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 49 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:06:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-14 20:06:00,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-14 20:06:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.372093023255814) internal successors, (59), 44 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2024-10-14 20:06:00,992 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 26 [2024-10-14 20:06:00,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:06:00,993 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2024-10-14 20:06:00,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2024-10-14 20:06:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2024-10-14 20:06:00,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 20:06:00,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:06:00,994 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:06:00,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 20:06:00,994 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:06:00,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:06:00,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1523949265, now seen corresponding path program 1 times [2024-10-14 20:06:00,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:06:00,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560555381] [2024-10-14 20:06:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:00,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:06:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:06:01,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:06:01,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560555381] [2024-10-14 20:06:01,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560555381] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:06:01,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773319874] [2024-10-14 20:06:01,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:01,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:01,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:06:01,196 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) [2024-10-14 20:06:01,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:06:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:01,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:06:01,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:06:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:06:01,358 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:06:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:06:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773319874] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:06:01,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:06:01,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-10-14 20:06:01,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317195896] [2024-10-14 20:06:01,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:06:01,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 20:06:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:06:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 20:06:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:06:01,486 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:01,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:06:01,565 INFO L93 Difference]: Finished difference Result 96 states and 130 transitions. [2024-10-14 20:06:01,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 20:06:01,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-10-14 20:06:01,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:06:01,566 INFO L225 Difference]: With dead ends: 96 [2024-10-14 20:06:01,566 INFO L226 Difference]: Without dead ends: 77 [2024-10-14 20:06:01,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:06:01,568 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 108 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:06:01,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 99 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:06:01,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-14 20:06:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-14 20:06:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 76 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 103 transitions. [2024-10-14 20:06:01,581 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 103 transitions. Word has length 32 [2024-10-14 20:06:01,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:06:01,581 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 103 transitions. [2024-10-14 20:06:01,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:01,582 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 103 transitions. [2024-10-14 20:06:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-14 20:06:01,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:06:01,584 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:06:01,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:06:01,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:01,785 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:06:01,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:06:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash -35278073, now seen corresponding path program 2 times [2024-10-14 20:06:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:06:01,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971895048] [2024-10-14 20:06:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:01,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:06:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:02,164 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:06:02,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:06:02,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971895048] [2024-10-14 20:06:02,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971895048] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:06:02,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218294283] [2024-10-14 20:06:02,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:06:02,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:02,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:06:02,168 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) [2024-10-14 20:06:02,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:06:02,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:06:02,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:06:02,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 20:06:02,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:06:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:06:02,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:06:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:06:02,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218294283] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:06:02,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:06:02,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-10-14 20:06:02,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331797669] [2024-10-14 20:06:02,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:06:02,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-14 20:06:02,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:06:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-14 20:06:02,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 20:06:02,746 INFO L87 Difference]: Start difference. First operand 77 states and 103 transitions. Second operand has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:02,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:06:02,892 INFO L93 Difference]: Finished difference Result 160 states and 222 transitions. [2024-10-14 20:06:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 20:06:02,892 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 33 states have internal predecessors, (103), 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 56 [2024-10-14 20:06:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:06:02,894 INFO L225 Difference]: With dead ends: 160 [2024-10-14 20:06:02,894 INFO L226 Difference]: Without dead ends: 141 [2024-10-14 20:06:02,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 20:06:02,895 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 171 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:06:02,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 243 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:06:02,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-10-14 20:06:02,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-10-14 20:06:02,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 140 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 191 transitions. [2024-10-14 20:06:02,913 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 191 transitions. Word has length 56 [2024-10-14 20:06:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:06:02,914 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 191 transitions. [2024-10-14 20:06:02,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 191 transitions. [2024-10-14 20:06:02,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 20:06:02,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:06:02,919 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:06:02,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 20:06:03,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:03,124 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:06:03,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:06:03,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1666072247, now seen corresponding path program 3 times [2024-10-14 20:06:03,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:06:03,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212458133] [2024-10-14 20:06:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:03,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:06:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 645 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:06:04,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:06:04,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212458133] [2024-10-14 20:06:04,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212458133] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:06:04,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545135852] [2024-10-14 20:06:04,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:06:04,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:04,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:06:04,159 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) [2024-10-14 20:06:04,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:06:04,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 20:06:04,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:06:04,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:06:04,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:06:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2024-10-14 20:06:04,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:06:04,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545135852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:06:04,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:06:04,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [32] total 36 [2024-10-14 20:06:04,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853225208] [2024-10-14 20:06:04,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:06:04,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:06:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:06:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:06:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2024-10-14 20:06:04,364 INFO L87 Difference]: Start difference. First operand 141 states and 191 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) [2024-10-14 20:06:04,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:06:04,389 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2024-10-14 20:06:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:06:04,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) Word has length 104 [2024-10-14 20:06:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:06:04,390 INFO L225 Difference]: With dead ends: 141 [2024-10-14 20:06:04,390 INFO L226 Difference]: Without dead ends: 140 [2024-10-14 20:06:04,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2024-10-14 20:06:04,392 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:06:04,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 39 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:06:04,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-14 20:06:04,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-10-14 20:06:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 139 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2024-10-14 20:06:04,411 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 104 [2024-10-14 20:06:04,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:06:04,411 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2024-10-14 20:06:04,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) [2024-10-14 20:06:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2024-10-14 20:06:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 20:06:04,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:06:04,413 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-14 20:06:04,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:06:04,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:06:04,614 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:06:04,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:06:04,614 INFO L85 PathProgramCache]: Analyzing trace with hash 108632217, now seen corresponding path program 1 times [2024-10-14 20:06:04,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:06:04,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611280817] [2024-10-14 20:06:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:06:04,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:06:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:06:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-10-14 20:06:04,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:06:04,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611280817] [2024-10-14 20:06:04,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611280817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:06:04,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:06:04,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:06:04,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370725619] [2024-10-14 20:06:04,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:06:04,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:06:04,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:06:04,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:06:04,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:06:04,775 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:04,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:06:04,796 INFO L93 Difference]: Finished difference Result 140 states and 190 transitions. [2024-10-14 20:06:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:06:04,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 105 [2024-10-14 20:06:04,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:06:04,798 INFO L225 Difference]: With dead ends: 140 [2024-10-14 20:06:04,798 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 20:06:04,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:06:04,799 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 33 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 [2024-10-14 20:06:04,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 33 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:06:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 20:06:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 20:06:04,800 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) [2024-10-14 20:06:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 20:06:04,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-10-14 20:06:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:06:04,801 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 20:06:04,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:06:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 20:06:04,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 20:06:04,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-14 20:06:04,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-14 20:06:04,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-14 20:06:04,805 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-14 20:06:04,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 20:06:04,808 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2024-10-14 20:06:04,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 20:06:04,836 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 20:06:04,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:06:04 BoogieIcfgContainer [2024-10-14 20:06:04,849 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 20:06:04,850 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 20:06:04,850 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 20:06:04,850 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 20:06:04,850 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:05:58" (3/4) ... [2024-10-14 20:06:04,852 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 20:06:04,859 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-14 20:06:04,859 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 20:06:04,859 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 20:06:04,859 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 20:06:04,950 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 20:06:04,950 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 20:06:04,950 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 20:06:04,951 INFO L158 Benchmark]: Toolchain (without parser) took 6993.27ms. Allocated memory was 134.2MB in the beginning and 226.5MB in the end (delta: 92.3MB). Free memory was 63.1MB in the beginning and 161.3MB in the end (delta: -98.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:06:04,951 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 134.2MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:06:04,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.15ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 62.9MB in the beginning and 155.0MB in the end (delta: -92.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-10-14 20:06:04,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.96ms. Allocated memory is still 188.7MB. Free memory was 155.0MB in the beginning and 154.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:06:04,952 INFO L158 Benchmark]: Boogie Preprocessor took 38.85ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 150.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:06:04,952 INFO L158 Benchmark]: RCFGBuilder took 473.64ms. Allocated memory is still 188.7MB. Free memory was 150.8MB in the beginning and 134.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-14 20:06:04,952 INFO L158 Benchmark]: TraceAbstraction took 6065.12ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 133.0MB in the beginning and 166.6MB in the end (delta: -33.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 20:06:04,952 INFO L158 Benchmark]: Witness Printer took 100.52ms. Allocated memory is still 226.5MB. Free memory was 166.6MB in the beginning and 161.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 20:06:04,955 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 134.2MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.15ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 62.9MB in the beginning and 155.0MB in the end (delta: -92.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.96ms. Allocated memory is still 188.7MB. Free memory was 155.0MB in the beginning and 154.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.85ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 150.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.64ms. Allocated memory is still 188.7MB. Free memory was 150.8MB in the beginning and 134.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6065.12ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 133.0MB in the beginning and 166.6MB in the end (delta: -33.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 100.52ms. Allocated memory is still 226.5MB. Free memory was 166.6MB in the beginning and 161.3MB 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.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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 398 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 398 mSDsluCounter, 767 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 580 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 187 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=8, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 28 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 592 NumberOfCodeBlocks, 508 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 676 ConstructedInterpolants, 0 QuantifiedInterpolants, 1383 SizeOfPredicates, 0 NumberOfNonLiveVariables, 779 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 1368/2483 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: 48]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2024-10-14 20:06:04,986 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