./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 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 20:24:22,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:24:22,156 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-11 20:24:22,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:24:22,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:24:22,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:24:22,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:24:22,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:24:22,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:24:22,199 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:24:22,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:24:22,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:24:22,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:24:22,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:24:22,201 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:24:22,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:24:22,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:24:22,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:24:22,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:24:22,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:24:22,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:24:22,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:24:22,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:24:22,210 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:24:22,210 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:24:22,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:24:22,211 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:24:22,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:24:22,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:24:22,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:24:22,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:24:22,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:24:22,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:24:22,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:24:22,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:24:22,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:24:22,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:24:22,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:24:22,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:24:22,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:24:22,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:24:22,216 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bd2edbf3e593c12fc0be33924c944159e0cb6d32e04e77d638ccd9d0e66fc4a [2024-10-11 20:24:22,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:24:22,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:24:22,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:24:22,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:24:22,529 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:24:22,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2024-10-11 20:24:24,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:24:24,265 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:24:24,265 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2024-10-11 20:24:24,278 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/525a5a2b8/bff8ae2c97094998afb38f210c8696c8/FLAGb32b24f0a [2024-10-11 20:24:24,590 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/525a5a2b8/bff8ae2c97094998afb38f210c8696c8 [2024-10-11 20:24:24,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:24:24,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:24:24,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:24:24,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:24:24,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:24:24,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:24:24" (1/1) ... [2024-10-11 20:24:24,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341ccc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:24, skipping insertion in model container [2024-10-11 20:24:24,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:24:24" (1/1) ... [2024-10-11 20:24:24,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:24:24,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:24:24,955 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:24:25,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:24:25,074 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:24:25,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25 WrapperNode [2024-10-11 20:24:25,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:24:25,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:24:25,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:24:25,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:24:25,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,119 INFO L138 Inliner]: procedures = 111, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-10-11 20:24:25,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:24:25,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:24:25,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:24:25,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:24:25,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,135 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,151 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]. [2024-10-11 20:24:25,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:24:25,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:24:25,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:24:25,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:24:25,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (1/1) ... [2024-10-11 20:24:25,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:24:25,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:25,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:24:25,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:24:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 20:24:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 20:24:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 20:24:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 20:24:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 20:24:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 20:24:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 20:24:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 20:24:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:24:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:24:25,410 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:24:25,412 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:24:25,595 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-11 20:24:25,596 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:24:25,645 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:24:25,645 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 20:24:25,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:24:25 BoogieIcfgContainer [2024-10-11 20:24:25,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:24:25,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:24:25,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:24:25,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:24:25,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:24:24" (1/3) ... [2024-10-11 20:24:25,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:24:25, skipping insertion in model container [2024-10-11 20:24:25,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:24:25" (2/3) ... [2024-10-11 20:24:25,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:24:25, skipping insertion in model container [2024-10-11 20:24:25,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:24:25" (3/3) ... [2024-10-11 20:24:25,657 INFO L112 eAbstractionObserver]: Analyzing ICFG b.14-alloca.i [2024-10-11 20:24:25,675 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:24:25,676 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 20:24:25,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:24:25,750 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;@61e99063, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:24:25,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 20:24:25,758 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) [2024-10-11 20:24:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 20:24:25,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:25,766 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:25,767 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)] === [2024-10-11 20:24:25,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:25,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1661399938, now seen corresponding path program 1 times [2024-10-11 20:24:25,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:25,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866218214] [2024-10-11 20:24:25,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:25,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866218214] [2024-10-11 20:24:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866218214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:24:26,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:24:26,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:24:26,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619784208] [2024-10-11 20:24:26,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:24:26,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:24:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:26,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:24:26,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:24:26,377 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) [2024-10-11 20:24:26,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:26,498 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2024-10-11 20:24:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:24:26,501 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 [2024-10-11 20:24:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:26,506 INFO L225 Difference]: With dead ends: 48 [2024-10-11 20:24:26,506 INFO L226 Difference]: Without dead ends: 26 [2024-10-11 20:24:26,509 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 [2024-10-11 20:24:26,512 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:24:26,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 47 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:24:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-11 20:24:26,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2024-10-11 20:24:26,544 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) [2024-10-11 20:24:26,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-10-11 20:24:26,546 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7 [2024-10-11 20:24:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:26,546 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-10-11 20:24:26,547 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) [2024-10-11 20:24:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-10-11 20:24:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 20:24:26,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:26,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:26,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:24:26,548 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)] === [2024-10-11 20:24:26,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:26,549 INFO L85 PathProgramCache]: Analyzing trace with hash 36209536, now seen corresponding path program 1 times [2024-10-11 20:24:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:26,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686192439] [2024-10-11 20:24:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:26,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:26,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:26,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686192439] [2024-10-11 20:24:26,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686192439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:24:26,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:24:26,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:24:26,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134139152] [2024-10-11 20:24:26,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:24:26,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:24:26,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:26,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:24:26,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:24:26,706 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) [2024-10-11 20:24:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:26,737 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-10-11 20:24:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:24:26,738 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 [2024-10-11 20:24:26,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:26,739 INFO L225 Difference]: With dead ends: 21 [2024-10-11 20:24:26,740 INFO L226 Difference]: Without dead ends: 20 [2024-10-11 20:24:26,740 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 [2024-10-11 20:24:26,741 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 [2024-10-11 20:24:26,742 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] [2024-10-11 20:24:26,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-11 20:24:26,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-11 20:24:26,748 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) [2024-10-11 20:24:26,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-10-11 20:24:26,749 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 8 [2024-10-11 20:24:26,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:26,750 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-10-11 20:24:26,750 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) [2024-10-11 20:24:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-10-11 20:24:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 20:24:26,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:26,751 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:26,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:24:26,752 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)] === [2024-10-11 20:24:26,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:26,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1122495680, now seen corresponding path program 1 times [2024-10-11 20:24:26,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:26,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218482402] [2024-10-11 20:24:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:26,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:26,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:26,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:26,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218482402] [2024-10-11 20:24:26,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218482402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:24:26,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:24:26,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 20:24:26,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643916770] [2024-10-11 20:24:26,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:24:26,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:24:26,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:26,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:24:26,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:24:26,947 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) [2024-10-11 20:24:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:27,053 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2024-10-11 20:24:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:24:27,054 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 [2024-10-11 20:24:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:27,055 INFO L225 Difference]: With dead ends: 28 [2024-10-11 20:24:27,056 INFO L226 Difference]: Without dead ends: 27 [2024-10-11 20:24:27,057 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 [2024-10-11 20:24:27,058 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, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:24:27,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:24:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-11 20:24:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2024-10-11 20:24:27,066 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) [2024-10-11 20:24:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-10-11 20:24:27,067 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 9 [2024-10-11 20:24:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:27,068 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-10-11 20:24:27,068 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) [2024-10-11 20:24:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-10-11 20:24:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 20:24:27,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:27,069 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:27,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 20:24:27,069 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)] === [2024-10-11 20:24:27,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash 437627778, now seen corresponding path program 1 times [2024-10-11 20:24:27,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:27,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330701466] [2024-10-11 20:24:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:27,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:27,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:27,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330701466] [2024-10-11 20:24:27,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330701466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:24:27,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:24:27,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:24:27,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046469276] [2024-10-11 20:24:27,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:24:27,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:24:27,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:27,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:24:27,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:24:27,222 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) [2024-10-11 20:24:27,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:27,267 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2024-10-11 20:24:27,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:24:27,268 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 [2024-10-11 20:24:27,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:27,269 INFO L225 Difference]: With dead ends: 22 [2024-10-11 20:24:27,269 INFO L226 Difference]: Without dead ends: 21 [2024-10-11 20:24:27,269 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 [2024-10-11 20:24:27,270 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 [2024-10-11 20:24:27,271 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] [2024-10-11 20:24:27,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-10-11 20:24:27,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-11 20:24:27,274 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) [2024-10-11 20:24:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-10-11 20:24:27,275 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 10 [2024-10-11 20:24:27,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:27,275 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-10-11 20:24:27,275 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) [2024-10-11 20:24:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-10-11 20:24:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 20:24:27,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:27,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:27,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 20:24:27,276 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)] === [2024-10-11 20:24:27,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:27,277 INFO L85 PathProgramCache]: Analyzing trace with hash 681559298, now seen corresponding path program 1 times [2024-10-11 20:24:27,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:27,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59743013] [2024-10-11 20:24:27,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:27,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:27,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:27,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:27,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59743013] [2024-10-11 20:24:27,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59743013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:24:27,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:24:27,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:24:27,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32791278] [2024-10-11 20:24:27,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:24:27,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:24:27,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:27,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:24:27,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:24:27,357 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) [2024-10-11 20:24:27,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:27,392 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2024-10-11 20:24:27,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:24:27,392 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 [2024-10-11 20:24:27,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:27,393 INFO L225 Difference]: With dead ends: 34 [2024-10-11 20:24:27,393 INFO L226 Difference]: Without dead ends: 32 [2024-10-11 20:24:27,394 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 [2024-10-11 20:24:27,395 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 [2024-10-11 20:24:27,399 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] [2024-10-11 20:24:27,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-11 20:24:27,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-11 20:24:27,406 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) [2024-10-11 20:24:27,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2024-10-11 20:24:27,406 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11 [2024-10-11 20:24:27,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:27,407 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2024-10-11 20:24:27,407 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) [2024-10-11 20:24:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2024-10-11 20:24:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-11 20:24:27,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:27,411 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:27,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 20:24:27,411 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)] === [2024-10-11 20:24:27,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:27,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1720576973, now seen corresponding path program 1 times [2024-10-11 20:24:27,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:27,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114543196] [2024-10-11 20:24:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:27,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:27,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:27,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114543196] [2024-10-11 20:24:27,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114543196] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:27,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855865419] [2024-10-11 20:24:27,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:27,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:27,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:27,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:27,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:24:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:27,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 20:24:27,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:27,858 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 [2024-10-11 20:24:27,876 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 [2024-10-11 20:24:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:27,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:24:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:27,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855865419] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:24:27,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:24:27,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-11 20:24:27,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425368498] [2024-10-11 20:24:27,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:24:27,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:24:27,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:27,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:24:27,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:24:27,975 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) [2024-10-11 20:24:28,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:28,142 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2024-10-11 20:24:28,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 20:24:28,143 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 [2024-10-11 20:24:28,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:28,145 INFO L225 Difference]: With dead ends: 79 [2024-10-11 20:24:28,148 INFO L226 Difference]: Without dead ends: 78 [2024-10-11 20:24:28,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-10-11 20:24:28,149 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 51 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:24:28,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 109 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:24:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-11 20:24:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 54. [2024-10-11 20:24:28,163 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) [2024-10-11 20:24:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2024-10-11 20:24:28,165 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 15 [2024-10-11 20:24:28,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:28,165 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2024-10-11 20:24:28,165 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) [2024-10-11 20:24:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2024-10-11 20:24:28,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 20:24:28,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:28,166 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:28,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 20:24:28,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:28,367 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)] === [2024-10-11 20:24:28,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 87939893, now seen corresponding path program 1 times [2024-10-11 20:24:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:28,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15328270] [2024-10-11 20:24:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:28,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:28,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:28,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15328270] [2024-10-11 20:24:28,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15328270] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:28,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184908362] [2024-10-11 20:24:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:28,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:28,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:28,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:28,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:24:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:28,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:24:28,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:28,702 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 [2024-10-11 20:24:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:24:28,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:24:28,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184908362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:24:28,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:24:28,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2024-10-11 20:24:28,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835248762] [2024-10-11 20:24:28,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:24:28,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:24:28,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:24:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:24:28,708 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) [2024-10-11 20:24:28,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:28,743 INFO L93 Difference]: Finished difference Result 54 states and 70 transitions. [2024-10-11 20:24:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:24:28,746 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 [2024-10-11 20:24:28,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:28,748 INFO L225 Difference]: With dead ends: 54 [2024-10-11 20:24:28,748 INFO L226 Difference]: Without dead ends: 53 [2024-10-11 20:24:28,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:24:28,749 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 [2024-10-11 20:24:28,750 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] [2024-10-11 20:24:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-11 20:24:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-10-11 20:24:28,758 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) [2024-10-11 20:24:28,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2024-10-11 20:24:28,761 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 17 [2024-10-11 20:24:28,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:28,761 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2024-10-11 20:24:28,761 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) [2024-10-11 20:24:28,763 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2024-10-11 20:24:28,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 20:24:28,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:28,764 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:28,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 20:24:28,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:28,965 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)] === [2024-10-11 20:24:28,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:28,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1389106633, now seen corresponding path program 1 times [2024-10-11 20:24:28,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:28,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520239841] [2024-10-11 20:24:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:28,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:29,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:29,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520239841] [2024-10-11 20:24:29,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520239841] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:29,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527647517] [2024-10-11 20:24:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:29,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:29,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:29,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:29,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:24:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:29,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:24:29,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:29,241 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 [2024-10-11 20:24:29,280 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 [2024-10-11 20:24:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:29,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:24:29,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527647517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:24:29,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:24:29,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2024-10-11 20:24:29,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060296278] [2024-10-11 20:24:29,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:24:29,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:24:29,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:24:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:24:29,305 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) [2024-10-11 20:24:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:29,345 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2024-10-11 20:24:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:24:29,346 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 [2024-10-11 20:24:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:29,347 INFO L225 Difference]: With dead ends: 53 [2024-10-11 20:24:29,349 INFO L226 Difference]: Without dead ends: 52 [2024-10-11 20:24:29,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:24:29,350 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 [2024-10-11 20:24:29,350 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] [2024-10-11 20:24:29,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-11 20:24:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-11 20:24:29,363 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) [2024-10-11 20:24:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2024-10-11 20:24:29,363 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 19 [2024-10-11 20:24:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:29,364 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2024-10-11 20:24:29,364 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) [2024-10-11 20:24:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2024-10-11 20:24:29,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 20:24:29,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:29,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 20:24:29,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:24:29,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:29,565 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)] === [2024-10-11 20:24:29,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash -112632593, now seen corresponding path program 1 times [2024-10-11 20:24:29,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:29,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164497701] [2024-10-11 20:24:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:29,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:29,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:29,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164497701] [2024-10-11 20:24:29,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164497701] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407885534] [2024-10-11 20:24:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:29,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:29,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:29,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:29,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:24:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:29,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:24:29,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:29,783 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 [2024-10-11 20:24:29,825 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 [2024-10-11 20:24:29,840 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 [2024-10-11 20:24:29,844 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:29,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:24:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:29,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407885534] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:24:29,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:24:29,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-11 20:24:29,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104146929] [2024-10-11 20:24:29,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:24:29,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 20:24:29,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:29,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 20:24:29,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:24:29,907 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) [2024-10-11 20:24:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:29,979 INFO L93 Difference]: Finished difference Result 134 states and 165 transitions. [2024-10-11 20:24:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 20:24:29,980 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 [2024-10-11 20:24:29,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:29,981 INFO L225 Difference]: With dead ends: 134 [2024-10-11 20:24:29,981 INFO L226 Difference]: Without dead ends: 133 [2024-10-11 20:24:29,981 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 [2024-10-11 20:24:29,982 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 [2024-10-11 20:24:29,982 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] [2024-10-11 20:24:29,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-11 20:24:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-10-11 20:24:29,993 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) [2024-10-11 20:24:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2024-10-11 20:24:29,994 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 20 [2024-10-11 20:24:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:29,995 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2024-10-11 20:24:29,995 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) [2024-10-11 20:24:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2024-10-11 20:24:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 20:24:29,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:29,997 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-10-11 20:24:30,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 20:24:30,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-11 20:24:30,202 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)] === [2024-10-11 20:24:30,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:30,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2118775470, now seen corresponding path program 2 times [2024-10-11 20:24:30,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:30,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53231768] [2024-10-11 20:24:30,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:30,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 20:24:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53231768] [2024-10-11 20:24:30,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53231768] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324181717] [2024-10-11 20:24:30,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:24:30,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:30,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:30,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:24:31,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:24:31,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:24:31,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-11 20:24:31,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:31,088 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 [2024-10-11 20:24:31,126 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 [2024-10-11 20:24:31,186 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 [2024-10-11 20:24:31,246 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 [2024-10-11 20:24:31,281 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 [2024-10-11 20:24:31,298 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:31,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:24:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:31,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324181717] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:24:31,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:24:31,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 31 [2024-10-11 20:24:31,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542319001] [2024-10-11 20:24:31,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:24:31,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 20:24:31,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:31,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 20:24:31,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=774, Unknown=0, NotChecked=0, Total=992 [2024-10-11 20:24:31,568 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) [2024-10-11 20:24:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:31,816 INFO L93 Difference]: Finished difference Result 149 states and 177 transitions. [2024-10-11 20:24:31,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:24:31,817 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 [2024-10-11 20:24:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:31,818 INFO L225 Difference]: With dead ends: 149 [2024-10-11 20:24:31,818 INFO L226 Difference]: Without dead ends: 148 [2024-10-11 20:24:31,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=370, Invalid=1270, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 20:24:31,819 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 [2024-10-11 20:24:31,820 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] [2024-10-11 20:24:31,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-11 20:24:31,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 57. [2024-10-11 20:24:31,832 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) [2024-10-11 20:24:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2024-10-11 20:24:31,832 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 39 [2024-10-11 20:24:31,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:31,833 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2024-10-11 20:24:31,833 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) [2024-10-11 20:24:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2024-10-11 20:24:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 20:24:31,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:31,834 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2024-10-11 20:24:31,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 20:24:32,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 20:24:32,041 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)] === [2024-10-11 20:24:32,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash -562086096, now seen corresponding path program 2 times [2024-10-11 20:24:32,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:32,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875244809] [2024-10-11 20:24:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:32,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:32,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875244809] [2024-10-11 20:24:32,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875244809] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:32,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141483669] [2024-10-11 20:24:32,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:24:32,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:32,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:32,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:32,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:24:32,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:24:32,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:24:32,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 20:24:32,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:32,491 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 [2024-10-11 20:24:32,529 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 [2024-10-11 20:24:32,560 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 [2024-10-11 20:24:32,594 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 [2024-10-11 20:24:32,631 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 [2024-10-11 20:24:32,645 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 [2024-10-11 20:24:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:32,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:24:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:32,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141483669] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:24:32,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:24:32,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2024-10-11 20:24:32,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243659816] [2024-10-11 20:24:32,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:24:32,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-11 20:24:32,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:32,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-11 20:24:32,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2024-10-11 20:24:32,834 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) [2024-10-11 20:24:33,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:33,017 INFO L93 Difference]: Finished difference Result 124 states and 151 transitions. [2024-10-11 20:24:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 20:24:33,018 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 [2024-10-11 20:24:33,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:33,019 INFO L225 Difference]: With dead ends: 124 [2024-10-11 20:24:33,019 INFO L226 Difference]: Without dead ends: 123 [2024-10-11 20:24:33,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=350, Invalid=772, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 20:24:33,020 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 [2024-10-11 20:24:33,021 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] [2024-10-11 20:24:33,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-10-11 20:24:33,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-10-11 20:24:33,032 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) [2024-10-11 20:24:33,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2024-10-11 20:24:33,033 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 44 [2024-10-11 20:24:33,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:33,033 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2024-10-11 20:24:33,034 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) [2024-10-11 20:24:33,034 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2024-10-11 20:24:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 20:24:33,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:33,036 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1] [2024-10-11 20:24:33,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 20:24:33,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 20:24:33,237 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)] === [2024-10-11 20:24:33,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:33,237 INFO L85 PathProgramCache]: Analyzing trace with hash 202156722, now seen corresponding path program 3 times [2024-10-11 20:24:33,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:33,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968417560] [2024-10-11 20:24:33,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:33,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:34,399 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:34,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:34,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968417560] [2024-10-11 20:24:34,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968417560] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:34,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291772425] [2024-10-11 20:24:34,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:24:34,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:34,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:34,402 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:34,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:24:36,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-11 20:24:36,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:24:36,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-11 20:24:36,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:36,442 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 [2024-10-11 20:24:36,480 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 [2024-10-11 20:24:36,508 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 [2024-10-11 20:24:36,537 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 [2024-10-11 20:24:36,568 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 [2024-10-11 20:24:36,598 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 [2024-10-11 20:24:36,631 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 [2024-10-11 20:24:36,667 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 [2024-10-11 20:24:36,700 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 [2024-10-11 20:24:36,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-11 20:24:36,788 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 [2024-10-11 20:24:36,803 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 [2024-10-11 20:24:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:36,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:24:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:37,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291772425] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:24:37,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:24:37,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 55 [2024-10-11 20:24:37,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749550727] [2024-10-11 20:24:37,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:24:37,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-10-11 20:24:37,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:37,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-10-11 20:24:37,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=989, Invalid=2203, Unknown=0, NotChecked=0, Total=3192 [2024-10-11 20:24:37,415 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) [2024-10-11 20:24:37,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:37,922 INFO L93 Difference]: Finished difference Result 256 states and 313 transitions. [2024-10-11 20:24:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-11 20:24:37,923 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 [2024-10-11 20:24:37,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:37,924 INFO L225 Difference]: With dead ends: 256 [2024-10-11 20:24:37,924 INFO L226 Difference]: Without dead ends: 255 [2024-10-11 20:24:37,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1424, Invalid=3406, Unknown=0, NotChecked=0, Total=4830 [2024-10-11 20:24:37,930 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 [2024-10-11 20:24:37,930 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] [2024-10-11 20:24:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-11 20:24:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-10-11 20:24:37,967 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) [2024-10-11 20:24:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 301 transitions. [2024-10-11 20:24:37,969 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 301 transitions. Word has length 92 [2024-10-11 20:24:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:37,970 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 301 transitions. [2024-10-11 20:24:37,970 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) [2024-10-11 20:24:37,970 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 301 transitions. [2024-10-11 20:24:37,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-11 20:24:37,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:37,977 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1] [2024-10-11 20:24:37,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 20:24:38,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:38,178 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)] === [2024-10-11 20:24:38,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:38,178 INFO L85 PathProgramCache]: Analyzing trace with hash -232120906, now seen corresponding path program 4 times [2024-10-11 20:24:38,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:38,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952758410] [2024-10-11 20:24:38,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:38,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2024 backedges. 0 proven. 2024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:42,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:42,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952758410] [2024-10-11 20:24:42,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952758410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:42,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837439141] [2024-10-11 20:24:42,283 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:24:42,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:42,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:42,285 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:42,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 20:24:42,494 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:24:42,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:24:42,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-10-11 20:24:42,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:24:42,511 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 [2024-10-11 20:24:42,556 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 [2024-10-11 20:24:42,589 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 [2024-10-11 20:24:42,615 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 [2024-10-11 20:24:42,648 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 [2024-10-11 20:24:42,686 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 [2024-10-11 20:24:42,714 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 [2024-10-11 20:24:42,756 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 [2024-10-11 20:24:42,785 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 [2024-10-11 20:24:42,819 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 [2024-10-11 20:24:42,852 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 [2024-10-11 20:24:42,891 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 [2024-10-11 20:24:42,928 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 [2024-10-11 20:24:42,966 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 [2024-10-11 20:24:43,002 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 [2024-10-11 20:24:43,038 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 [2024-10-11 20:24:43,076 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 [2024-10-11 20:24:43,120 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 [2024-10-11 20:24:43,161 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 [2024-10-11 20:24:43,221 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 [2024-10-11 20:24:43,273 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 [2024-10-11 20:24:43,330 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 [2024-10-11 20:24:43,391 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 [2024-10-11 20:24:43,402 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 [2024-10-11 20:24:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2024 backedges. 0 proven. 2024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:43,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:24:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2024 backedges. 0 proven. 2024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:45,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837439141] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:24:45,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:24:45,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 115 [2024-10-11 20:24:45,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739521819] [2024-10-11 20:24:45,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:24:45,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2024-10-11 20:24:45,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:24:45,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2024-10-11 20:24:45,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4139, Invalid=9433, Unknown=0, NotChecked=0, Total=13572 [2024-10-11 20:24:45,434 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) [2024-10-11 20:24:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:24:46,783 INFO L93 Difference]: Finished difference Result 520 states and 637 transitions. [2024-10-11 20:24:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-10-11 20:24:46,784 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 [2024-10-11 20:24:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:24:46,786 INFO L225 Difference]: With dead ends: 520 [2024-10-11 20:24:46,786 INFO L226 Difference]: Without dead ends: 519 [2024-10-11 20:24:46,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7772 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=5732, Invalid=14290, Unknown=0, NotChecked=0, Total=20022 [2024-10-11 20:24:46,792 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 832 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-10-11 20:24:46,792 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] [2024-10-11 20:24:46,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-11 20:24:46,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2024-10-11 20:24:46,824 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) [2024-10-11 20:24:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 613 transitions. [2024-10-11 20:24:46,825 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 613 transitions. Word has length 188 [2024-10-11 20:24:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:24:46,826 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 613 transitions. [2024-10-11 20:24:46,826 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) [2024-10-11 20:24:46,827 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 613 transitions. [2024-10-11 20:24:46,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-10-11 20:24:46,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:24:46,831 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 1, 1, 1, 1, 1] [2024-10-11 20:24:46,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-11 20:24:47,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 20:24:47,033 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)] === [2024-10-11 20:24:47,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:24:47,033 INFO L85 PathProgramCache]: Analyzing trace with hash -967871554, now seen corresponding path program 5 times [2024-10-11 20:24:47,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:24:47,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258870897] [2024-10-11 20:24:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:24:47,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:24:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:24:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8648 backedges. 0 proven. 8648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:24:59,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:24:59,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258870897] [2024-10-11 20:24:59,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258870897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:24:59,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146073822] [2024-10-11 20:24:59,162 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:24:59,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:24:59,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:24:59,163 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:24:59,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process