./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/memsafety/960521-1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/memsafety/960521-1-2.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 19e2947f690bcfa099d607c2a0a6dc0e6f351f54e3f3874a42109cbf9e336957 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:47:25,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:47:25,321 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 18:47:25,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:47:25,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:47:25,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:47:25,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:47:25,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:47:25,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:47:25,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:47:25,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:47:25,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:47:25,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:47:25,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:47:25,360 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:47:25,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:47:25,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 18:47:25,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:47:25,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:47:25,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:47:25,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:47:25,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 18:47:25,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:47:25,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 18:47:25,365 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:47:25,365 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 18:47:25,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:47:25,366 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:47:25,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 18:47:25,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:47:25,366 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:47:25,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:47:25,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:47:25,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:47:25,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:47:25,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:47:25,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:47:25,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 18:47:25,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:47:25,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:47:25,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:47:25,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:47:25,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:47:25,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:47:25,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19e2947f690bcfa099d607c2a0a6dc0e6f351f54e3f3874a42109cbf9e336957 [2024-11-10 18:47:25,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:47:25,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:47:25,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:47:25,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:47:25,638 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:47:25,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/960521-1-2.i [2024-11-10 18:47:27,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:47:27,250 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:47:27,251 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/960521-1-2.i [2024-11-10 18:47:27,262 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ffb923a/b2a01d9ddc9d4fb1b7a55158048bb3a9/FLAG1de9e3f03 [2024-11-10 18:47:27,275 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ffb923a/b2a01d9ddc9d4fb1b7a55158048bb3a9 [2024-11-10 18:47:27,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:47:27,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:47:27,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:47:27,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:47:27,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:47:27,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fbfa2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27, skipping insertion in model container [2024-11-10 18:47:27,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:47:27,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:47:27,721 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:47:27,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:47:27,796 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:47:27,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27 WrapperNode [2024-11-10 18:47:27,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:47:27,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:47:27,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:47:27,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:47:27,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,833 INFO L138 Inliner]: procedures = 121, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-11-10 18:47:27,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:47:27,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:47:27,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:47:27,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:47:27,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,863 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 1, 3]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2024-11-10 18:47:27,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,869 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:47:27,878 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:47:27,878 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:47:27,878 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:47:27,878 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (1/1) ... [2024-11-10 18:47:27,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:47:27,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:47:27,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:47:27,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:47:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 18:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 18:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 18:47:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:47:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:47:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:47:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:47:28,082 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:47:28,084 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:47:28,216 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-10 18:47:28,220 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:47:28,234 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:47:28,237 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:47:28,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:47:28 BoogieIcfgContainer [2024-11-10 18:47:28,238 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:47:28,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:47:28,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:47:28,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:47:28,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:47:27" (1/3) ... [2024-11-10 18:47:28,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589f1558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:47:28, skipping insertion in model container [2024-11-10 18:47:28,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:47:27" (2/3) ... [2024-11-10 18:47:28,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589f1558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:47:28, skipping insertion in model container [2024-11-10 18:47:28,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:47:28" (3/3) ... [2024-11-10 18:47:28,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 960521-1-2.i [2024-11-10 18:47:28,262 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:47:28,263 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 18:47:28,327 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:47:28,333 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;@190b1923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:47:28,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 18:47:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.5) internal successors, (27), 22 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) [2024-11-10 18:47:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-10 18:47:28,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:28,344 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-10 18:47:28,344 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:28,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:28,351 INFO L85 PathProgramCache]: Analyzing trace with hash 57225495, now seen corresponding path program 1 times [2024-11-10 18:47:28,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:28,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163670237] [2024-11-10 18:47:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:28,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163670237] [2024-11-10 18:47:28,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163670237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:47:28,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:47:28,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:47:28,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862606067] [2024-11-10 18:47:28,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:47:28,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:47:28,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:47:28,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:47:28,687 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.5) internal successors, (27), 22 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:28,741 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2024-11-10 18:47:28,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:47:28,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-10 18:47:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:28,752 INFO L225 Difference]: With dead ends: 46 [2024-11-10 18:47:28,752 INFO L226 Difference]: Without dead ends: 24 [2024-11-10 18:47:28,754 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 [2024-11-10 18:47:28,757 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:28,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 48 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:47:28,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-10 18:47:28,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2024-11-10 18:47:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:28,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-11-10 18:47:28,784 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 5 [2024-11-10 18:47:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:28,785 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-11-10 18:47:28,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-11-10 18:47:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 18:47:28,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:28,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:47:28,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:47:28,787 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:28,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:28,787 INFO L85 PathProgramCache]: Analyzing trace with hash -299276105, now seen corresponding path program 1 times [2024-11-10 18:47:28,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:28,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196333203] [2024-11-10 18:47:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:28,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:28,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:28,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196333203] [2024-11-10 18:47:28,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196333203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:47:28,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:47:28,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:47:28,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205383842] [2024-11-10 18:47:28,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:47:28,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:47:28,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:28,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:47:28,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:47:28,917 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:28,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:28,937 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-11-10 18:47:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:47:28,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-10 18:47:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:28,939 INFO L225 Difference]: With dead ends: 29 [2024-11-10 18:47:28,939 INFO L226 Difference]: Without dead ends: 21 [2024-11-10 18:47:28,940 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 [2024-11-10 18:47:28,942 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:28,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:47:28,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-10 18:47:28,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-10 18:47:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-11-10 18:47:28,949 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 8 [2024-11-10 18:47:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:28,950 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-11-10 18:47:28,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-11-10 18:47:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-10 18:47:28,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:28,951 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 18:47:28,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:47:28,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:28,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:28,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2051826306, now seen corresponding path program 1 times [2024-11-10 18:47:28,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:28,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835790930] [2024-11-10 18:47:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:28,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:29,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:29,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835790930] [2024-11-10 18:47:29,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835790930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:47:29,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119455155] [2024-11-10 18:47:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:29,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:29,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:47:29,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:47:29,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:47:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:29,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:47:29,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:47:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:29,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:47:29,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119455155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:47:29,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:47:29,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 18:47:29,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039523085] [2024-11-10 18:47:29,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:47:29,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:47:29,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:29,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:47:29,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:47:29,326 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:29,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:29,370 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2024-11-10 18:47:29,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:47:29,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-10 18:47:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:29,371 INFO L225 Difference]: With dead ends: 24 [2024-11-10 18:47:29,371 INFO L226 Difference]: Without dead ends: 23 [2024-11-10 18:47:29,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:47:29,373 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:29,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 44 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:47:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-10 18:47:29,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2024-11-10 18:47:29,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 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) [2024-11-10 18:47:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-11-10 18:47:29,377 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 10 [2024-11-10 18:47:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:29,378 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-11-10 18:47:29,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-10 18:47:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 18:47:29,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:29,378 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 18:47:29,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 18:47:29,579 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 [2024-11-10 18:47:29,580 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:29,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash -817893965, now seen corresponding path program 1 times [2024-11-10 18:47:29,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:29,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804470036] [2024-11-10 18:47:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:29,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:29,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:29,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804470036] [2024-11-10 18:47:29,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804470036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:47:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692927372] [2024-11-10 18:47:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:29,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:29,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:47:29,692 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) [2024-11-10 18:47:29,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:47:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:29,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:47:29,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:47:29,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:29,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:47:29,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:29,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692927372] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:47:29,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:47:29,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 18:47:29,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299465716] [2024-11-10 18:47:29,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:47:29,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 18:47:29,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:29,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 18:47:29,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 18:47:29,882 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 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) [2024-11-10 18:47:29,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:29,941 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-10 18:47:29,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 18:47:29,942 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 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) Word has length 11 [2024-11-10 18:47:29,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:29,943 INFO L225 Difference]: With dead ends: 38 [2024-11-10 18:47:29,943 INFO L226 Difference]: Without dead ends: 37 [2024-11-10 18:47:29,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 18:47:29,945 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:29,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 47 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:47:29,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-10 18:47:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-11-10 18:47:29,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.21875) internal successors, (39), 34 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) [2024-11-10 18:47:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2024-11-10 18:47:29,950 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 11 [2024-11-10 18:47:29,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:29,950 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-11-10 18:47:29,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 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) [2024-11-10 18:47:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2024-11-10 18:47:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-10 18:47:29,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:29,951 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:47:29,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 18:47:30,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 18:47:30,156 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:30,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:30,157 INFO L85 PathProgramCache]: Analyzing trace with hash -19055764, now seen corresponding path program 1 times [2024-11-10 18:47:30,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041796812] [2024-11-10 18:47:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:30,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:30,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 18:47:30,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:30,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041796812] [2024-11-10 18:47:30,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041796812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:47:30,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:47:30,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:47:30,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624888586] [2024-11-10 18:47:30,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:47:30,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:47:30,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:30,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:47:30,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:47:30,237 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:30,271 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2024-11-10 18:47:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:47:30,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-10 18:47:30,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:30,272 INFO L225 Difference]: With dead ends: 42 [2024-11-10 18:47:30,272 INFO L226 Difference]: Without dead ends: 40 [2024-11-10 18:47:30,272 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 [2024-11-10 18:47:30,274 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:30,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:47:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-10 18:47:30,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2024-11-10 18:47:30,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-11-10 18:47:30,283 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 13 [2024-11-10 18:47:30,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:30,283 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-11-10 18:47:30,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:30,284 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-11-10 18:47:30,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-10 18:47:30,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:30,285 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:47:30,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:47:30,288 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:30,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash 673957953, now seen corresponding path program 1 times [2024-11-10 18:47:30,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:30,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363477640] [2024-11-10 18:47:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:47:30,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:30,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363477640] [2024-11-10 18:47:30,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363477640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:47:30,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583570118] [2024-11-10 18:47:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:30,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:30,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:47:30,407 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) [2024-11-10 18:47:30,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:47:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:30,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:47:30,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:47:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:47:30,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:47:30,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:47:30,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583570118] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:47:30,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:47:30,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 18:47:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478917881] [2024-11-10 18:47:30,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:47:30,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 18:47:30,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:30,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 18:47:30,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-10 18:47:30,587 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:30,622 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2024-11-10 18:47:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:47:30,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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 18 [2024-11-10 18:47:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:30,624 INFO L225 Difference]: With dead ends: 51 [2024-11-10 18:47:30,624 INFO L226 Difference]: Without dead ends: 39 [2024-11-10 18:47:30,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-10 18:47:30,626 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:30,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:47:30,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-10 18:47:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-10 18:47:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:30,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2024-11-10 18:47:30,634 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 18 [2024-11-10 18:47:30,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:30,636 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2024-11-10 18:47:30,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2024-11-10 18:47:30,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-10 18:47:30,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:30,637 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1] [2024-11-10 18:47:30,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 18:47:30,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:30,838 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)] === [2024-11-10 18:47:30,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:30,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1376097282, now seen corresponding path program 2 times [2024-11-10 18:47:30,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:30,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500473219] [2024-11-10 18:47:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:30,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:47:31,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:31,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500473219] [2024-11-10 18:47:31,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500473219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:47:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941134168] [2024-11-10 18:47:31,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:47:31,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:31,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:47:31,054 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) [2024-11-10 18:47:31,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:47:31,119 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 18:47:31,119 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:47:31,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:47:31,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:47:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-10 18:47:31,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:47:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-10 18:47:31,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941134168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:47:31,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:47:31,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 15 [2024-11-10 18:47:31,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477385619] [2024-11-10 18:47:31,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:47:31,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 18:47:31,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:31,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 18:47:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:47:31,256 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:31,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:31,446 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2024-11-10 18:47:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:47:31,447 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 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 [2024-11-10 18:47:31,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:31,447 INFO L225 Difference]: With dead ends: 45 [2024-11-10 18:47:31,447 INFO L226 Difference]: Without dead ends: 44 [2024-11-10 18:47:31,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-11-10 18:47:31,448 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 18 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:31,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 63 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:47:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-10 18:47:31,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2024-11-10 18:47:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2024-11-10 18:47:31,458 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 26 [2024-11-10 18:47:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:31,458 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2024-11-10 18:47:31,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:31,459 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2024-11-10 18:47:31,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-10 18:47:31,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:31,460 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:47:31,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 18:47:31,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:31,661 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:31,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:31,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1283672417, now seen corresponding path program 2 times [2024-11-10 18:47:31,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:31,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907605873] [2024-11-10 18:47:31,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:31,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:47:31,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:31,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907605873] [2024-11-10 18:47:31,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907605873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:47:31,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976519414] [2024-11-10 18:47:31,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:47:31,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:31,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:47:31,795 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) [2024-11-10 18:47:31,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 18:47:31,860 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:47:31,860 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:47:31,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 18:47:31,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:47:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:47:32,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:47:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:47:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976519414] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:47:32,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:47:32,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-10 18:47:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684556049] [2024-11-10 18:47:32,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:47:32,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 18:47:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 18:47:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:47:32,120 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:32,188 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2024-11-10 18:47:32,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:47:32,189 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 23 states have internal predecessors, (62), 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 28 [2024-11-10 18:47:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:32,189 INFO L225 Difference]: With dead ends: 63 [2024-11-10 18:47:32,189 INFO L226 Difference]: Without dead ends: 51 [2024-11-10 18:47:32,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:47:32,190 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:32,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:47:32,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-10 18:47:32,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-10 18:47:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 50 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2024-11-10 18:47:32,201 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 28 [2024-11-10 18:47:32,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:32,201 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2024-11-10 18:47:32,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2024-11-10 18:47:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 18:47:32,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:32,203 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:47:32,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 18:47:32,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:32,404 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:32,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:32,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1148162977, now seen corresponding path program 3 times [2024-11-10 18:47:32,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:32,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836338127] [2024-11-10 18:47:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:32,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:32,730 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:47:32,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:32,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836338127] [2024-11-10 18:47:32,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836338127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:47:32,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772317008] [2024-11-10 18:47:32,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:47:32,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:32,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:47:32,732 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:47:32,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 18:47:32,799 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:47:32,799 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:47:32,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:47:32,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:47:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-10 18:47:32,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:47:32,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772317008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:47:32,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:47:32,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2024-11-10 18:47:32,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486868197] [2024-11-10 18:47:32,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:47:32,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:47:32,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:32,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:47:32,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:47:32,852 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:32,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:32,882 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2024-11-10 18:47:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:47:32,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-10 18:47:32,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:32,884 INFO L225 Difference]: With dead ends: 51 [2024-11-10 18:47:32,885 INFO L226 Difference]: Without dead ends: 50 [2024-11-10 18:47:32,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:47:32,886 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 29 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 [2024-11-10 18:47:32,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 29 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:47:32,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-10 18:47:32,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-10 18:47:32,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 49 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2024-11-10 18:47:32,895 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 48 [2024-11-10 18:47:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:32,896 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2024-11-10 18:47:32,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2024-11-10 18:47:32,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-10 18:47:32,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:47:32,898 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:47:32,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 18:47:33,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:47:33,099 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-10 18:47:33,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:47:33,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1233313896, now seen corresponding path program 1 times [2024-11-10 18:47:33,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:47:33,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037126883] [2024-11-10 18:47:33,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:47:33,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:47:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:47:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-10 18:47:33,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:47:33,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037126883] [2024-11-10 18:47:33,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037126883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:47:33,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:47:33,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:47:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910620304] [2024-11-10 18:47:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:47:33,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:47:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:47:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:47:33,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:47:33,156 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:33,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:47:33,166 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2024-11-10 18:47:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:47:33,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-10 18:47:33,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:47:33,167 INFO L225 Difference]: With dead ends: 50 [2024-11-10 18:47:33,167 INFO L226 Difference]: Without dead ends: 0 [2024-11-10 18:47:33,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:47:33,168 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:47:33,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:47:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-10 18:47:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-10 18:47:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 18:47:33,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2024-11-10 18:47:33,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:47:33,169 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 18:47:33,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:47:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-10 18:47:33,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-10 18:47:33,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-10 18:47:33,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-10 18:47:33,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-10 18:47:33,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-10 18:47:33,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 18:47:33,178 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2024-11-10 18:47:33,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-10 18:47:33,276 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:47:33,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:47:33 BoogieIcfgContainer [2024-11-10 18:47:33,285 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:47:33,286 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:47:33,286 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:47:33,286 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:47:33,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:47:28" (3/4) ... [2024-11-10 18:47:33,289 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:47:33,297 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-10 18:47:33,297 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 18:47:33,297 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 18:47:33,298 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 18:47:33,382 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:47:33,383 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:47:33,383 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:47:33,383 INFO L158 Benchmark]: Toolchain (without parser) took 6105.44ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 123.8MB in the beginning and 85.8MB in the end (delta: 38.0MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2024-11-10 18:47:33,384 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 50.5MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:47:33,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.52ms. Allocated memory is still 184.5MB. Free memory was 123.3MB in the beginning and 144.1MB in the end (delta: -20.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 18:47:33,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.83ms. Allocated memory is still 184.5MB. Free memory was 144.1MB in the beginning and 142.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:47:33,384 INFO L158 Benchmark]: Boogie Preprocessor took 42.30ms. Allocated memory is still 184.5MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:47:33,385 INFO L158 Benchmark]: IcfgBuilder took 360.19ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 127.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 18:47:33,385 INFO L158 Benchmark]: TraceAbstraction took 5046.04ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 127.3MB in the beginning and 90.0MB in the end (delta: 37.3MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2024-11-10 18:47:33,386 INFO L158 Benchmark]: Witness Printer took 97.07ms. Allocated memory is still 222.3MB. Free memory was 90.0MB in the beginning and 85.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:47:33,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 50.5MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.52ms. Allocated memory is still 184.5MB. Free memory was 123.3MB in the beginning and 144.1MB in the end (delta: -20.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.83ms. Allocated memory is still 184.5MB. Free memory was 144.1MB in the beginning and 142.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.30ms. Allocated memory is still 184.5MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 360.19ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 127.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5046.04ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 127.3MB in the beginning and 90.0MB in the end (delta: 37.3MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Witness Printer took 97.07ms. Allocated memory is still 222.3MB. Free memory was 90.0MB in the beginning and 85.8MB in the end (delta: 4.1MB). 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: 530]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 530]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 528]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 528]: 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, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 420 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 295 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 322 IncrementalHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 125 mSDtfsCounter, 322 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=8, InterpolantAutomatonStates: 70, 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, 22 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 357 NumberOfCodeBlocks, 307 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 1204 SizeOfPredicates, 2 NumberOfNonLiveVariables, 530 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 347/612 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: 528]: Location Invariant Derived location invariant: null - InvariantResult [Line: 530]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-10 18:47:33,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE