./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3bd2edbf3e593c12fc0be33924c944159e0cb6d32e04e77d638ccd9d0e66fc4a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:09:16,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:09:16,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-13 13:09:16,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:09:16,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:09:16,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:09:16,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:09:16,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:09:16,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:09:16,864 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:09:16,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:09:16,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:09:16,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:09:16,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:09:16,869 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:09:16,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:09:16,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:09:16,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:09:16,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:09:16,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:09:16,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:09:16,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:09:16,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:09:16,875 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:09:16,876 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:09:16,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:09:16,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:09:16,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:09:16,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:09:16,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:09:16,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:09:16,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:09:16,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:09:16,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:09:16,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:09:16,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:09:16,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:09:16,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:09:16,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:09:16,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:09:16,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:09:16,879 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bd2edbf3e593c12fc0be33924c944159e0cb6d32e04e77d638ccd9d0e66fc4a [2024-10-13 13:09:17,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:09:17,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:09:17,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:09:17,161 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:09:17,161 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:09:17,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2024-10-13 13:09:18,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:09:18,737 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:09:18,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2024-10-13 13:09:18,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/866d50460/ca71c7afbb0f4f73993170779907fe82/FLAGbf9792df9 [2024-10-13 13:09:19,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/866d50460/ca71c7afbb0f4f73993170779907fe82 [2024-10-13 13:09:19,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:09:19,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:09:19,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:09:19,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:09:19,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:09:19,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe0c0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19, skipping insertion in model container [2024-10-13 13:09:19,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:09:19,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:09:19,373 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:09:19,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:09:19,434 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:09:19,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19 WrapperNode [2024-10-13 13:09:19,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:09:19,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:09:19,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:09:19,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:09:19,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,467 INFO L138 Inliner]: procedures = 111, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-10-13 13:09:19,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:09:19,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:09:19,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:09:19,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:09:19,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,490 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [4, 5, 5]. 36 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 6 writes are split as follows [2, 2, 2]. [2024-10-13 13:09:19,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,494 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:09:19,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:09:19,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:09:19,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:09:19,500 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (1/1) ... [2024-10-13 13:09:19,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:09:19,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:19,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 13:09:19,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 13:09:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 13:09:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 13:09:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 13:09:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 13:09:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 13:09:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 13:09:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 13:09:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 13:09:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:09:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:09:19,692 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:09:19,694 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:09:19,884 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-13 13:09:19,887 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:09:19,927 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:09:19,927 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 13:09:19,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:19 BoogieIcfgContainer [2024-10-13 13:09:19,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:09:19,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:09:19,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:09:19,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:09:19,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:09:19" (1/3) ... [2024-10-13 13:09:19,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f9e7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:19, skipping insertion in model container [2024-10-13 13:09:19,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:19" (2/3) ... [2024-10-13 13:09:19,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f9e7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:19, skipping insertion in model container [2024-10-13 13:09:19,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:19" (3/3) ... [2024-10-13 13:09:19,937 INFO L112 eAbstractionObserver]: Analyzing ICFG b.14-alloca.i [2024-10-13 13:09:19,951 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:09:19,952 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-13 13:09:20,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:09:20,009 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;@7650c956, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:09:20,011 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-13 13:09:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 13:09:20,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:20,020 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:20,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:20,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:20,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1661399938, now seen corresponding path program 1 times [2024-10-13 13:09:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:20,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740155008] [2024-10-13 13:09:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:20,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:20,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:20,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740155008] [2024-10-13 13:09:20,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740155008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:20,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:20,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:09:20,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576282094] [2024-10-13 13:09:20,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:20,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:09:20,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:20,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:09:20,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:09:20,408 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:20,479 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2024-10-13 13:09:20,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:09:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-13 13:09:20,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:20,487 INFO L225 Difference]: With dead ends: 48 [2024-10-13 13:09:20,487 INFO L226 Difference]: Without dead ends: 26 [2024-10-13 13:09:20,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:09:20,492 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:20,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 47 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:20,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-13 13:09:20,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2024-10-13 13:09:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.6) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-10-13 13:09:20,521 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7 [2024-10-13 13:09:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:20,521 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-10-13 13:09:20,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-10-13 13:09:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 13:09:20,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:20,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:20,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:09:20,523 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash 36209536, now seen corresponding path program 1 times [2024-10-13 13:09:20,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144252040] [2024-10-13 13:09:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:20,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:20,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144252040] [2024-10-13 13:09:20,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144252040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:20,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:20,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:09:20,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829430140] [2024-10-13 13:09:20,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:20,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:09:20,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:20,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:09:20,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:09:20,631 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 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) [2024-10-13 13:09:20,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:20,661 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-10-13 13:09:20,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:09:20,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2024-10-13 13:09:20,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:20,663 INFO L225 Difference]: With dead ends: 21 [2024-10-13 13:09:20,663 INFO L226 Difference]: Without dead ends: 20 [2024-10-13 13:09:20,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:09:20,664 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:20,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-13 13:09:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-13 13:09:20,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-10-13 13:09:20,671 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 8 [2024-10-13 13:09:20,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:20,671 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-10-13 13:09:20,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2024-10-13 13:09:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-10-13 13:09:20,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-13 13:09:20,672 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:20,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:20,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 13:09:20,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:20,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1122495680, now seen corresponding path program 1 times [2024-10-13 13:09:20,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:20,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267431651] [2024-10-13 13:09:20,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:20,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:20,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:20,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267431651] [2024-10-13 13:09:20,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267431651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:20,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:20,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 13:09:20,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925581459] [2024-10-13 13:09:20,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:20,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:09:20,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:09:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:09:20,875 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:20,960 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2024-10-13 13:09:20,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:09:20,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2024-10-13 13:09:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:20,962 INFO L225 Difference]: With dead ends: 28 [2024-10-13 13:09:20,963 INFO L226 Difference]: Without dead ends: 27 [2024-10-13 13:09:20,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:09:20,964 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:20,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:20,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-13 13:09:20,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2024-10-13 13:09:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-10-13 13:09:20,971 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 9 [2024-10-13 13:09:20,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:20,972 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-10-13 13:09:20,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-10-13 13:09:20,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 13:09:20,972 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:20,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:20,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 13:09:20,973 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:20,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:20,973 INFO L85 PathProgramCache]: Analyzing trace with hash 437627778, now seen corresponding path program 1 times [2024-10-13 13:09:20,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:20,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127580940] [2024-10-13 13:09:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:20,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:21,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:21,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127580940] [2024-10-13 13:09:21,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127580940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:21,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:21,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:09:21,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446085776] [2024-10-13 13:09:21,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:21,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:09:21,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:21,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:09:21,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:09:21,144 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:21,172 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2024-10-13 13:09:21,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:09:21,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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 [2024-10-13 13:09:21,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:21,173 INFO L225 Difference]: With dead ends: 22 [2024-10-13 13:09:21,173 INFO L226 Difference]: Without dead ends: 21 [2024-10-13 13:09:21,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:09:21,174 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 37 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:21,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 18 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:21,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-10-13 13:09:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-13 13:09:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-10-13 13:09:21,177 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 10 [2024-10-13 13:09:21,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:21,177 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-10-13 13:09:21,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-10-13 13:09:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-13 13:09:21,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:21,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:21,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 13:09:21,178 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:21,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:21,179 INFO L85 PathProgramCache]: Analyzing trace with hash 681559298, now seen corresponding path program 1 times [2024-10-13 13:09:21,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:21,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332880533] [2024-10-13 13:09:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:21,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:21,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332880533] [2024-10-13 13:09:21,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332880533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:21,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:09:21,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:09:21,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536266737] [2024-10-13 13:09:21,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:21,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:09:21,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:21,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:09:21,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:09:21,232 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:21,252 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2024-10-13 13:09:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:09:21,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-13 13:09:21,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:21,253 INFO L225 Difference]: With dead ends: 34 [2024-10-13 13:09:21,253 INFO L226 Difference]: Without dead ends: 32 [2024-10-13 13:09:21,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:09:21,254 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:21,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 41 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:21,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-13 13:09:21,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-13 13:09:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2024-10-13 13:09:21,259 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11 [2024-10-13 13:09:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:21,259 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2024-10-13 13:09:21,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2024-10-13 13:09:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-13 13:09:21,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:21,260 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:21,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 13:09:21,260 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:21,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:21,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1720576973, now seen corresponding path program 1 times [2024-10-13 13:09:21,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:21,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715310100] [2024-10-13 13:09:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:21,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:21,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:21,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715310100] [2024-10-13 13:09:21,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715310100] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:21,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292373321] [2024-10-13 13:09:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:21,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:21,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:21,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:21,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:09:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:21,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 13:09:21,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:21,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:21,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:21,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:21,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:21,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292373321] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:21,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:21,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-13 13:09:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517357153] [2024-10-13 13:09:21,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:21,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 13:09:21,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:21,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 13:09:21,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:09:21,661 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:21,770 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2024-10-13 13:09:21,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 13:09:21,771 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-13 13:09:21,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:21,772 INFO L225 Difference]: With dead ends: 79 [2024-10-13 13:09:21,773 INFO L226 Difference]: Without dead ends: 78 [2024-10-13 13:09:21,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:09:21,774 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 51 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:21,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 109 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:21,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-13 13:09:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 54. [2024-10-13 13:09:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.4) internal successors, (70), 53 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2024-10-13 13:09:21,780 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 15 [2024-10-13 13:09:21,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:21,781 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2024-10-13 13:09:21,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2024-10-13 13:09:21,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-13 13:09:21,781 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:21,781 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:21,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 13:09:21,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 13:09:21,986 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:21,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:21,986 INFO L85 PathProgramCache]: Analyzing trace with hash 87939893, now seen corresponding path program 1 times [2024-10-13 13:09:21,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:21,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141451299] [2024-10-13 13:09:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:22,212 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:22,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:22,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141451299] [2024-10-13 13:09:22,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141451299] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:22,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177007290] [2024-10-13 13:09:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:22,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:22,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:22,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:22,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:09:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:22,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:09:22,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:22,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:09:22,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:09:22,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177007290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:22,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:09:22,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2024-10-13 13:09:22,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885953387] [2024-10-13 13:09:22,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:22,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:09:22,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:22,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:09:22,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:09:22,307 INFO L87 Difference]: Start difference. First operand 54 states and 70 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) [2024-10-13 13:09:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:22,335 INFO L93 Difference]: Finished difference Result 54 states and 70 transitions. [2024-10-13 13:09:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:09:22,335 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 17 [2024-10-13 13:09:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:22,337 INFO L225 Difference]: With dead ends: 54 [2024-10-13 13:09:22,337 INFO L226 Difference]: Without dead ends: 53 [2024-10-13 13:09:22,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:09:22,338 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:22,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 38 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-13 13:09:22,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-10-13 13:09:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.34) internal successors, (67), 52 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2024-10-13 13:09:22,345 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 17 [2024-10-13 13:09:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:22,347 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2024-10-13 13:09:22,347 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) [2024-10-13 13:09:22,348 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2024-10-13 13:09:22,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-13 13:09:22,348 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:22,348 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:22,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:09:22,552 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,SelfDestructingSolverStorable6 [2024-10-13 13:09:22,553 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:22,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:22,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1389106633, now seen corresponding path program 1 times [2024-10-13 13:09:22,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:22,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066383249] [2024-10-13 13:09:22,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:22,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:22,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:22,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066383249] [2024-10-13 13:09:22,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066383249] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:22,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385674101] [2024-10-13 13:09:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:22,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:22,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:22,663 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:22,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:09:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:22,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:09:22,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:22,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 13:09:22,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-13 13:09:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:22,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:09:22,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385674101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:09:22,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:09:22,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2024-10-13 13:09:22,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099399094] [2024-10-13 13:09:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:09:22,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:09:22,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:22,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:09:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:09:22,772 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:22,793 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2024-10-13 13:09:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:09:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-13 13:09:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:22,795 INFO L225 Difference]: With dead ends: 53 [2024-10-13 13:09:22,796 INFO L226 Difference]: Without dead ends: 52 [2024-10-13 13:09:22,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:09:22,796 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:22,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-13 13:09:22,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-13 13:09:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.26) internal successors, (63), 51 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2024-10-13 13:09:22,806 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 19 [2024-10-13 13:09:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:22,806 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2024-10-13 13:09:22,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2024-10-13 13:09:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-13 13:09:22,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:22,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 13:09:22,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 13:09:23,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:23,008 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:23,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash -112632593, now seen corresponding path program 1 times [2024-10-13 13:09:23,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:23,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684866364] [2024-10-13 13:09:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:23,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:23,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684866364] [2024-10-13 13:09:23,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684866364] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323095733] [2024-10-13 13:09:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:23,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:23,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:23,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:09:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:23,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:09:23,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:23,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 13:09:23,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:23,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:23,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:23,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323095733] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:23,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:23,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-13 13:09:23,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753763554] [2024-10-13 13:09:23,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:23,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:09:23,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:09:23,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:09:23,314 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 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) [2024-10-13 13:09:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:23,362 INFO L93 Difference]: Finished difference Result 134 states and 165 transitions. [2024-10-13 13:09:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:09:23,362 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 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) Word has length 20 [2024-10-13 13:09:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:23,363 INFO L225 Difference]: With dead ends: 134 [2024-10-13 13:09:23,363 INFO L226 Difference]: Without dead ends: 133 [2024-10-13 13:09:23,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:09:23,364 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:23,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 78 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:09:23,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-13 13:09:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-10-13 13:09:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 131 states have (on average 1.1908396946564885) internal successors, (156), 132 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2024-10-13 13:09:23,372 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 20 [2024-10-13 13:09:23,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:23,372 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2024-10-13 13:09:23,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 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) [2024-10-13 13:09:23,372 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2024-10-13 13:09:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 13:09:23,373 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:23,373 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-10-13 13:09:23,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:09:23,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:23,574 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:23,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:23,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2118775470, now seen corresponding path program 2 times [2024-10-13 13:09:23,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:23,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244167192] [2024-10-13 13:09:23,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:23,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-13 13:09:24,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:24,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244167192] [2024-10-13 13:09:24,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244167192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:24,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111483973] [2024-10-13 13:09:24,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:09:24,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:24,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:24,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:09:24,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:09:24,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:09:24,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 13:09:24,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:24,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:24,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:24,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2024-10-13 13:09:24,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2024-10-13 13:09:24,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-13 13:09:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:24,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:24,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111483973] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:24,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:24,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 31 [2024-10-13 13:09:24,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986337929] [2024-10-13 13:09:24,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:24,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-13 13:09:24,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:24,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-13 13:09:24,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=774, Unknown=0, NotChecked=0, Total=992 [2024-10-13 13:09:24,710 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:25,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:25,032 INFO L93 Difference]: Finished difference Result 149 states and 177 transitions. [2024-10-13 13:09:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 13:09:25,032 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 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 39 [2024-10-13 13:09:25,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:25,033 INFO L225 Difference]: With dead ends: 149 [2024-10-13 13:09:25,033 INFO L226 Difference]: Without dead ends: 148 [2024-10-13 13:09:25,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=370, Invalid=1270, Unknown=0, NotChecked=0, Total=1640 [2024-10-13 13:09:25,034 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 33 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:25,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 63 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:09:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-13 13:09:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 57. [2024-10-13 13:09:25,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2024-10-13 13:09:25,040 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 39 [2024-10-13 13:09:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:25,041 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2024-10-13 13:09:25,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2024-10-13 13:09:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-13 13:09:25,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:25,042 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2024-10-13 13:09:25,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 13:09:25,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-13 13:09:25,243 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:25,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash -562086096, now seen corresponding path program 2 times [2024-10-13 13:09:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:25,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533898965] [2024-10-13 13:09:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:25,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:25,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533898965] [2024-10-13 13:09:25,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533898965] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:25,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076938727] [2024-10-13 13:09:25,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:09:25,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:25,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:25,560 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) [2024-10-13 13:09:25,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 13:09:25,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:09:25,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:09:25,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:09:25,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:25,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 13:09:25,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:25,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:25,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:25,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:25,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:25,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:26,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076938727] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:26,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:26,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2024-10-13 13:09:26,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771119217] [2024-10-13 13:09:26,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:26,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-13 13:09:26,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:26,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-13 13:09:26,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:09:26,116 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 27 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:26,329 INFO L93 Difference]: Finished difference Result 124 states and 151 transitions. [2024-10-13 13:09:26,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 13:09:26,330 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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 44 [2024-10-13 13:09:26,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:26,330 INFO L225 Difference]: With dead ends: 124 [2024-10-13 13:09:26,330 INFO L226 Difference]: Without dead ends: 123 [2024-10-13 13:09:26,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=350, Invalid=772, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 13:09:26,331 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 133 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:26,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 144 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:09:26,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-10-13 13:09:26,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-10-13 13:09:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 122 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2024-10-13 13:09:26,341 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 44 [2024-10-13 13:09:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:26,341 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2024-10-13 13:09:26,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:26,341 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2024-10-13 13:09:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-13 13:09:26,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:26,343 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1] [2024-10-13 13:09:26,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 13:09:26,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:26,544 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:26,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:26,545 INFO L85 PathProgramCache]: Analyzing trace with hash 202156722, now seen corresponding path program 3 times [2024-10-13 13:09:26,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:26,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779611335] [2024-10-13 13:09:26,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:26,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:27,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:27,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779611335] [2024-10-13 13:09:27,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779611335] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:27,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897508807] [2024-10-13 13:09:27,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:09:27,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:27,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:27,902 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:27,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 13:09:29,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-13 13:09:29,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:09:29,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-13 13:09:29,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:29,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 13:09:29,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:29,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:29,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:30,165 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:30,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897508807] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:30,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:30,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 55 [2024-10-13 13:09:30,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762243422] [2024-10-13 13:09:30,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:30,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-10-13 13:09:30,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:30,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-10-13 13:09:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=989, Invalid=2203, Unknown=0, NotChecked=0, Total=3192 [2024-10-13 13:09:30,169 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand has 57 states, 56 states have (on average 3.982142857142857) internal successors, (223), 56 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:30,611 INFO L93 Difference]: Finished difference Result 256 states and 313 transitions. [2024-10-13 13:09:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-13 13:09:30,611 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 3.982142857142857) internal successors, (223), 56 states have internal predecessors, (223), 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 92 [2024-10-13 13:09:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:30,613 INFO L225 Difference]: With dead ends: 256 [2024-10-13 13:09:30,613 INFO L226 Difference]: Without dead ends: 255 [2024-10-13 13:09:30,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1424, Invalid=3406, Unknown=0, NotChecked=0, Total=4830 [2024-10-13 13:09:30,615 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 373 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:30,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 274 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:09:30,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-13 13:09:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-10-13 13:09:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.18503937007874) internal successors, (301), 254 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 301 transitions. [2024-10-13 13:09:30,643 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 301 transitions. Word has length 92 [2024-10-13 13:09:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:30,643 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 301 transitions. [2024-10-13 13:09:30,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 3.982142857142857) internal successors, (223), 56 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:30,643 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 301 transitions. [2024-10-13 13:09:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-13 13:09:30,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:30,646 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1] [2024-10-13 13:09:30,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 13:09:30,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:30,847 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:30,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:30,848 INFO L85 PathProgramCache]: Analyzing trace with hash -232120906, now seen corresponding path program 4 times [2024-10-13 13:09:30,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:30,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438349595] [2024-10-13 13:09:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:30,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2024 backedges. 0 proven. 2024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:34,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:34,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438349595] [2024-10-13 13:09:34,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438349595] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:34,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56322724] [2024-10-13 13:09:34,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 13:09:34,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:34,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:34,064 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:34,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 13:09:34,240 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 13:09:34,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:09:34,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-10-13 13:09:34,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:09:34,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 13:09:34,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:34,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-13 13:09:35,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-13 13:09:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2024 backedges. 0 proven. 2024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:35,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:09:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2024 backedges. 0 proven. 2024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:36,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56322724] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:09:36,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:09:36,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 115 [2024-10-13 13:09:36,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811749961] [2024-10-13 13:09:36,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:09:36,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2024-10-13 13:09:36,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:09:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2024-10-13 13:09:36,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4139, Invalid=9433, Unknown=0, NotChecked=0, Total=13572 [2024-10-13 13:09:36,681 INFO L87 Difference]: Start difference. First operand 255 states and 301 transitions. Second operand has 117 states, 116 states have (on average 3.8879310344827585) internal successors, (451), 116 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:09:37,939 INFO L93 Difference]: Finished difference Result 520 states and 637 transitions. [2024-10-13 13:09:37,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-10-13 13:09:37,940 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 116 states have (on average 3.8879310344827585) internal successors, (451), 116 states have internal predecessors, (451), 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 188 [2024-10-13 13:09:37,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:09:37,941 INFO L225 Difference]: With dead ends: 520 [2024-10-13 13:09:37,941 INFO L226 Difference]: Without dead ends: 519 [2024-10-13 13:09:37,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7772 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5732, Invalid=14290, Unknown=0, NotChecked=0, Total=20022 [2024-10-13 13:09:37,945 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 832 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:09:37,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 587 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:09:37,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-13 13:09:37,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2024-10-13 13:09:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 518 states have (on average 1.1833976833976834) internal successors, (613), 518 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:37,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 613 transitions. [2024-10-13 13:09:37,967 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 613 transitions. Word has length 188 [2024-10-13 13:09:37,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:09:37,967 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 613 transitions. [2024-10-13 13:09:37,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 116 states have (on average 3.8879310344827585) internal successors, (451), 116 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:09:37,967 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 613 transitions. [2024-10-13 13:09:37,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-10-13 13:09:37,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:09:37,970 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 1, 1, 1, 1, 1] [2024-10-13 13:09:37,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 13:09:38,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 13:09:38,175 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:09:38,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:09:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash -967871554, now seen corresponding path program 5 times [2024-10-13 13:09:38,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:09:38,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563933354] [2024-10-13 13:09:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:09:38,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:09:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:09:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 8648 backedges. 0 proven. 8648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:09:47,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:09:47,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563933354] [2024-10-13 13:09:47,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563933354] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:09:47,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649325508] [2024-10-13 13:09:47,890 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 13:09:47,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:09:47,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:09:47,892 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:09:47,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process